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    • 专利摘要:
    MECHANICALLY ACTUATED DEVICE POSITIONED BELOW A MECHANICALLY ACTUATED RELEASE ASSEMBLY USING SLOT DEVICE J. A tool string carrying an external tool, such as a liner hanger, on a release mechanism is lowered into the wellbore. Interlocking eyes and J slot profile, defined between the outer surface of the mandrel and the inner surface of the release mechanism, allow relative movement of the release mechanism and the mandrel without releasing the release mechanism. Relative movement allows mechanical operation of a valve or other tool positioned below the release mechanism. Downward weight and rotation of tool string and chuck actuate the lower valve assembly by rotating a sleeve in alignment with cooperating chuck elements. The sleeve, no longer constrained, moves longitudinally in response to a deflection mechanism. Sleeve movement allows valve closure. After valve tool actuation, further weight down releases the transported tool release mechanism.
    公开号:BR112015009373B1
    申请号:R112015009373-6
    申请日:2012-10-26
    公开日:2021-05-04
    发明作者:Arthur STAUTZENBERGER
    申请人:Halliburton Energy Services, Inc.；
    IPC主号:
    专利说明:

    CROSS REFERENCE TO RELATED ORDERS None FIELD OF THE INVENTION
    [0001] Methods and apparatus are presented to provide multiple relative positions between a release set in a tool column, thus allowing actuation of a mechanically operated tool positioned below the release set. More particularly, methods and apparatus are presented for sequentially actuating a mechanically operated tool positioned below a mechanically operated release mechanism, where the mechanically operated tool is positioned below the release assembly. FUNDAMENTALS OF THE INVENTION
    [0002] Oil and gas hydrocarbons occur naturally in some underground formations. An underground formation containing oil or gas is sometimes referred to as a reservoir. A reservoir can be located underground or off shore. Reservoirs are typically located in the range of a few hundred feet (shallow reservoirs) to a few tens of thousands of feet (ultra-deep reservoirs).
    [0003] In order to produce hydrocarbons, a wellbore is drilled through a zone carrying hydrocarbon in a reservoir. In a lined wellborehole or portion thereof, a casing is placed and typically cemented into the wellbore providing a tubular wall between the zone and the interior of the lined wellbore. A pipe string can then be passed into and out of the casing. Likewise, the pipe string can be run in an unlined wellbore or wellbore section. As used herein, "pipe column" refers to a series of connected pipe sections, joints, screens, blanks, crossover tools, downhole tools, and the like, inserted into a wellbore, or used for drilling , reconditioning, production, injection, completion or other processes. Furthermore, in many cases, a tool may be run on a steel cable or spiral pipe rather than a pipe string, as those skilled in the art will recognize. A wellbore can be or include vertical, offset and horizontal portions and can be straight, curved or branched.
    [0004] During completion of a portion of an openbore wellbore, a string of completion piping is placed in the wellbore. The piping column allows fluids to be introduced into, or drained from, a remote portion of the wellbore. A pipe string is created by joining multiple sections of pipe together, typically via right-hand male threads at the bottom of an upper section of pipe and corresponding female threads at the top of a lower section of pipe. The two tube sections are connected to each other by applying a right-hand torque to the upper tube section, while the lower tube section remains relatively stationary. The joined pipe sections are then lowered into the wellbore. The process is termed as "composing" and "passing" a column.
    [0005] It is typical in hydrocarbon wells to actuate a downhole tool by relative longitudinal or rotational movement between parts of the tool caused by physical manipulation of the tool string, such as putting weight down, lifting or rotating the string. Such actions are considered "mechanically operated" performances, as opposed to electrically, hydraulically, or chemically operated. Mechanically operable tools can include release sets, such as collet sets, expansion tools, packers, shutters, hangers, etc. Actuation can be used to "seat" tools, release tools, open and close valves, etc. Other operations can be performed by the tool column as well. For example, a pipe string is passed to a wellbore to hang an expandable liner and liner string, cement around the liner, expand the liner hanger, and release or disconnect the liner hanging from the tool string. The column is then retrieved to the surface.
    [0006] There is a need for tool sets, such as valves and release mechanisms, that can be mechanically operated. For example, a ball drop actuated valve may not be operable or efficient in a horizontal well at low piping pressures. SUMMARY OF THE INVENTION
    [0007] A tool string carrying an external tool, such as a liner hanger, on a release mechanism is lowered into the wellbore. Interlocking eyes and J slot profile, defined between the outer surface of the mandrel and the inner surface of the release mechanism, allow relative movement of the release mechanism and the mandrel without releasing the release mechanism. Relative movement allows mechanical operation of a valve or other tool positioned below the release mechanism. Downward weight and rotation of tool string and chuck actuate the lower valve assembly by rotating a sleeve in alignment with cooperating chuck elements. The sleeve, no longer constrained, moves longitudinally in response to a deflection mechanism. Sleeve movement allows valve closure. After valve tool actuation, further weight down releases the transported tool release mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
    [0008] For a more complete understanding of the characteristics and advantages of the present invention, reference is now made to the detailed description of the invention together with the attached figures in which corresponding numerals in the different figures refer to corresponding parts and in which:
    [0009] Figures 1A-C are schematic views of a partial liner hanger tool column including features in accordance with aspects of the invention, with Figure 1A being a schematic overview, in cross section, Figure 1B a view in detailed cross section of Figure 1A and Figure 1C a cross section of Figure 1A;
    [0010] Figures 2A-E are partial schematic cross-sectional views of an embodiment of the J-slot and collet slot release features according to one aspect of the invention, with Figure 2A showing the tool assembly in a through position under tensile load, Figure 2B showing the tool assembly in a rotated weight-down chuck position where slot J is engaged, Figure 2C showing the tool assembly in a weight-down position, wherein the assembly of release is actuated. Figure 2D is a longitudinal cross-section of the collet thrust sleeve eyes and mandrel slot J slot taken along line DD of Figure 2A, and Figure 2E is a longitudinal cross-section of the collet anchor sleeve eyes. and slotted slot J taken along line EE of Figure 2B;
    [0011] Figures 3A-D are longitudinal cross-sectional views of a preferred embodiment of an exemplary tool assembly in a pass-through, or tension-loaded, position, in accordance with an aspect of the invention;
    [0012] Figures 4A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 views in a compressed-loaded position in accordance with an aspect of the invention;
    [0013] Figures 5A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 views with the lower mechanically actuated mechanism in an actuated position in accordance with an aspect of the invention;
    [0014] Figures 6A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 seen in a weight-down position having the upper mechanism mechanically actuated;
    [0015] Figure 7 is a cross-sectional detail taken from Figure 3B and is a preferred embodiment of an exemplary tool assembly in a pass-through, or tension-loaded, position, in accordance with an aspect of the invention;
    [0016] Figure 8 is a detailed cross-sectional view taken as indicated from Figure 5B of the tool assembly having a lower actuated mechanically actuated mechanism;
    [0017] Figures 9-12 are cross-sectional views of the preferred embodiment of Figures 3-6 taken on correspondingly numbered lines.
    [0018] It should be understood by those skilled in the art that the use of directional terms such as above, below, upper, lower, ascending, descending and so on are used in relation to illustrative modalities as they are represented in the figures, being the upward direction towards the top of the corresponding figure and the downward direction towards the bottom of the corresponding figure. Where this is not the case and a term is being used to indicate needed guidance, the Report will state or make this clear. DETAILED DESCRIPTION OF PREFERRED MODALITIES
    [0019] Although the realization and use of various embodiments of the present invention are discussed in detail below, a practitioner of the art will appreciate that the present invention provides applicable inventive concepts which can be incorporated in a variety of specific contexts. The specific embodiments discussed in this document are illustrative of specific ways of making and using the invention and do not limit the scope of the present invention. The description is provided with reference to a vertical wellbore; however, the inventions disclosed herein can be used in horizontal, vertical or diverted wells. As used herein, the words "comprises", "has", "includes" and all grammatical variations thereof are each intended to have an open, non-limiting meaning that does not exclude additional elements or steps. It should be understood that, as used herein, "first", "second", "third", etc., are arbitrarily assigned, merely differentiate between two or more items, and do not indicate sequence. Also, the use of the term "first" does not require a "second", etc. The terms "uphole", "downhole" and the like refer to movement or direction closer and farther, respectively, to the wellhead, regardless of whether it is used in reference to a vertical, horizontal or deviated well. The terms "upstream" and "downstream" refer to the relative position or direction in relation to the fluid flow, again regardless of the well's orientation. While the description may focus on a particular means for positioning tools in the wellbore, such as a pipe string, coiled tubing or steel cable, those skilled in the art will recognize when alternative means can be used. As used herein, "up" and "down" and the like are used to indicate relative position of parts, or relative direction or movement, typically with respect to the orientation of the Figures, and do not exclude similar relative position, direction or movement, direction or movement where the orientation in use differs from the orientation in Figures.
    [0020] The embodiment discussed is an expandable liner hanger tool column with the novel features providing mechanical actuation of a valve positioned below a mechanically operated release mechanism, viz., a clamp assembly. The invention is not so limited. Persons skilled in the art will recognize the utility of the invention and its teachings for use in operating two sets mechanically actuated in sequence.
    [0021] Standard liner hanger pass-through tools allow the use of a mechanically actuated seal or valve assembly positioned on top of the tool, which can be mechanically operated to divert pressure through a transverse body to the pistons for expansion. Since the valve mechanism can be located on top of the tool, rotational and downward movement of the column used to actuate a mechanism, such as a J-slot hinge valve, can be easily built into the tool. Standard tools can be used efficiently in vertical, horizontal and diverted wells. In addition, ball drop valves are effective on high pressure tools, even when the well is horizontal. Low pressure tools, however, require a valve mechanism positioned below the collet release mechanism. This has precluded the use of mechanically actuated valve mechanisms, because the elements of the collet release mechanism are generally rigidly connected, longitudinally and rotationally, to the liner hanger and tool chuck, eliminating the possibility of mechanical actuation of a valve below of the collet (or any other mechanically operated tool).
    [0022] The invention allows a J Slit profile to be designed in the collet mechanism, thereby allowing enough relative movement to operate a J Slit feature without decoloring the collet mechanism from the liner hanger. Having the J slot located inside the collet mechanism allows a flap valve or other type of valve, or other tool, to be located at the bottom of the tool, below the collet mechanism. The purpose of the J-slit actuated mechanism below the collet is to provide a J-slit feature that will work below a collet mechanism that can be used to actuate a flap valve, or other tooling device. The location of the slot J below the collet mechanism provides a mechanically actuated adjustment option for low pressure liner hanger pass-through tools which require a sealing mechanism located below the collet feature.
    [0023] A slit profile J is located in the gripper mechanism. In this design, the location of the J-slot profile allows for relative longitudinal movement and rotation of the inner mandrel without stripping the collets and releasing the collet assembly. Rotating the inner mandrel using slot J is used to rotate a sleeve. When the sleeve is rotated, it lines up with cooperating ridges and grooves, allowing it to move upward in response to a deflection mechanism, such as a spring. When the sleeve is moved up, a spring-loaded flap valve, sealing the interior passage of the tool, and a hydraulically actuated tool, such as an expansion assembly or wedge assembly, can be adjusted by building up hydraulic pressure in the tool string. against the now closed valve. In the preferred embodiment, the valve assembly is a flap valve, however, other types of mechanically operated valves may be used, such as ball valves, gate valves, plunger valves, etc. In addition, the preferred embodiment utilizes relative rotational movement of the mandrel to allow relative longitudinal movement of an actuator sleeve. Rotational and longitudinal movements can be reversed or used in multiple sequences, as those skilled in the art will appreciate. This invention allows the use of a mechanism to achieve relative motion in an otherwise rigid connection. Movement can be used to activate a wide range of mechanisms.
    [0024] Figures 1A-C are schematic views of a partial liner hanger tool column including features in accordance with aspects of the invention. These Figure provide an overview for reference with more detailed discussion and figures to follow. Figure 1A is a schematic overview, in cross-section, of an exemplary downhole tool string in accordance with one aspect of the invention. Figure 1B is a detailed, cross-sectional view of Figure 1A. Figure 1C is a detailed cross-section of Figure 1A. Generally, the downhole tool string is shown as a 10 liner hanger tool string. The tool string has a mandrel assembly 12, a liner hanger 13 from which a liner string 15 hangs, a mechanism mechanically operated top 16 and a mechanically actuated inner mechanism 18. The mechanically operated or actuated mechanisms can be various mechanically operated tools, such as valves, tweezers, sliding sleeves, orifice closure devices, etc., and perform various functions such as fluid flow control, tool adjustment or actuation, release of assemblies, etc., as are known in the art. The discussion here is primarily limited to a liner hanger column with a bottom valve and release clamp, but the invention is not so limited.
    [0025] The tool assembly has a bottom sub or valve seat sub 20 at its lower end. The tool defines an internal passage 21 extending along the tool column. Pass 21 is used for dispensing fluids such as cement, treatment fluid, fracturing fluid, etc., downhole and for formation or the wellbore. Likewise, the passage can be used to allow or pump fluids upward towards the surface. The tool string extends from the upper end of the tool assembly shown, as is known in the art, and is composed of pipe sections, crossover tools, etc., as also known in the art. The passage 21 also serves as a pressure vessel, allowing for pressurization up and down in the tool string passage in relation to pressures in the wellbore. The passage also allows for differential pressure through any valves positioned in the passage. For example, when the lower mechanically actuated mechanism 18 is a valve assembly, pipeline pressure is used to hydraulically actuate pistons and the like to expand a liner hanger, seat a packer, etc.
    [0026] The mechanically operated upper mechanism 16 is a release assembly, that is, a collet release assembly. The collet release assembly 16 releasably secures the mandrel 12, via the collet assembly 22, to a liner hanger, where the collet eyes 24 cooperate with corresponding recesses defined in the interior surface of the liner hanger. The clamp assembly is longitudinally and rotationally locked with respect to the liner hanger in the through position. The collet eyes provide load-bearing surfaces 30 which support the tensile load in response to the weight of the liner hanger and attached liner. The liner hanger has matching opposite load-bearing surfaces. The collet strut portion 32 and the strut sleeve 34 maintain the collet in its initial position relative to the liner hanger 13 until moved or actuated to release the tool. A slot profile J 17 is defined on the outer surface of the mandrel 12 to interact with corresponding protrusions within the thrust sleeve 34. The slot J is used to allow a first movement between the mandrel and collet assembly to mechanically actuate the tool lower operated 18. Such an operation is carried out, in a preferred embodiment, by placing weight down on the column and rotating the column a quarter of a turn, preferably a turn to the left. A second column actuating motion operates the collet release assembly and allows the column to be pulled out of the hole, leaving the liner hanger in place.
    [0027] The mechanically operated lower assembly 18 is shown as a valve assembly 40, here a flapper valve assembly. The valve assembly includes a valve seat sub 20 and a compression spring nut 44 as shown. The valve element 42 is spring-displaced towards a closed position and initially held in an open position, as shown, by the valve thrust sleeve 48. The thrust sleeve is displaced by the spring 50 upwardly. The strut sleeve 48 is held in an initial position, as shown, by the cooperation of external strut ridges 54 in the strut sleeve that cooperate with internal grooves 56 in the valve assembly housing 58. The strut sleeve is rotatably operated by external slots. at the end of the mandrel 12 that engages the protrusion extending from the interior of the thrust sleeve 48. The adjustment sleeve assembly 52 connects the mechanically operated upper and lower mechanisms.
    [0028] Figures 2A-E are partial schematic cross-sectional views of an embodiment of the J-slit and clip release features in accordance with an aspect of the invention. Figure 2A shows the tool assembly in a passing position under tensile load. Figure 2B shows the tool assembly in a weight down and chuck rotated position where slot J is engaged. Figure 2C shows the tool set in a weight down position where the release set is actuated. Figure 2D is a longitudinal cross-section of the collet anchor sleeve eyes and slotted slot J taken along line D-D of Figure 2A. Figure 2E is a longitudinal cross-section of the collet anchor sleeve eyes and mandrel slot J slot taken along line E-E of Figure 2B. Figures 1 and 2 are discussed together.
    [0029] A liner hanger tool column 100 is partially shown to illustrate the operation of the slot assembly J. A liner hanger 102 is mounted on the tool assembly hanger 200. Below the liner hanger 102 hangs a column liners (not shown) as known in the art. Thus, the weight of the liner hanger and liner column is placed in the collet assembly 240 of the tool assembly. The tool assembly includes an inner mandrel 210 having a slot profile J 212 on its outer surface 214. In addition, the mandrel has a recess 276 and shoulder 278 which cooperate with the thrust nut 248 of the collet assembly.
    The collet assembly 240 has collet 242, collet retainer 244, collet anchor sleeve 246 and collet anchor nut 248. Collet 242 includes a collet ring 254 of which a plurality of collet fingers 250 extends, the fingers having eyes 252 that cooperate with recesses 104 of the liner hanger. The load-bearing faces 256 of the collet fingers abut the load-bearing faces 106 of the liner hanger. In addition, the liner hanger and collet assembly are locked in rotation so that torque is transferred between them, as the inner surface of the liner hanger defines longitudinal splines 258 which extend between the collet fingers or eyelets 252. The collet is initially held in place by the radial support provided by the collet anchor sleeve 246. When the collet anchor sleeve drops, or slides longitudinally relative to the collet, the fingers flex radially inwardly, thereby releasing the collet from the liner hanger recesses and the liner hanger tool set.
    The collet strut sleeve 246 slides longitudinally and rotationally relative to the chuck 210 when the chock sleeve eyes 260 cooperate with the slot profile J 212 in the chuck. Multiple eye and groove assemblies can be used, spacing the eyes circumferentially along the inner surface of the collet anchor sleeve 246. In addition, as shown, multiple rows of eyes can be employed, thereby reducing the torque load placed on any simple eye. The thrust sleeve has an upper shoulder 264 which opposes a lower shoulder 266 of the collet assembly, tensile load being transferred across the shoulders. The thrust sleeve has longitudinally extending support surfaces 268 and 272 which are slidably engaged with corresponding inner collet surfaces 270 and 274. These opposing surfaces maintain the collet fingers in a radially extended position during passage, weight down and rotation. during actuation of the lower mechanically actuated assembly (eg valve assembly), etc. The thrust sleeve has a lower shoulder 276 through which tensile load is transferred to an opposite upper shoulder 278 on the thrust nut 248.
    The collet anchor sleeve also has a releasable connection 262 with the retainer sleeve 244. The releasable connection can take many forms as are known in the art. In the preferred embodiment shown, the retainer glove includes a set of longitudinally extending fingers 280 with eyes 282 which cooperate with an upwardly extending retainer sleeve 284 and have a rib 286 which cooperates with the finger eyes 282. The releasable connection 262 keeps the thrust sleeve and collet retainer secured together until release is desired. The connection is moved away by applying weight down to the mandrel to pull fingers 280 from the cooperating sleeve 284. The thrust nut 248 is threadedly secured to the mandrel 210 at 288. The thrust nut supports tensile load transferred from the thrust sleeve through the faces 276 and 278.
    [0033] As seen in Figure 2D, the eyes 260 of the thrust sleeve 246 are slidably engaged in the slot J 212 of the mandrel and in a through position, or tension loaded position. A slot or profile J 212 defined in the outer surface of the mandrel 210 includes a slot 290 that extends longitudinally allowing the eyes 260 to slide longitudinally in response to weight down the pipe string. Profile 212 also includes a side pocket 292 allowing eye movement rotationally with respect to the mandrel. Preferably, the pockets are positioned for left rotation of the eyes. In such a way, this rotational movement to actuate an inferior mechanical device cannot act to unintentionally unscrew or operate right-hand rotating elements, such as joint connections, etc. As seen in Figure 2E, the eyes 260 are shown moved upwards longitudinally and rotationally in pockets 292. This position corresponds to the position of the tool assembly seen in Figure 2B.
    [0034] Figure 2B shows the tool assembly in a position where the slot J is engaged by the anchor sleeve eyes after weighing down the column and rotating to the left. In this position, where the mechanically actuated lower mechanism 18 has been actuated, the mandrel 210 has moved longitudinally relative to the liner hanger 102. Downward weight on the mandrel 210 moves the mandrel and collet anchor nut 248 relatively downward. Anchor sleeve 246, collet 242, collet retainer 244 and liner hanger 102 remain in a relatively stationary position when the mandrel, etc., is moved relatively downward. The collet eyes 252 remain engaged in the liner hanger recesses 104. The collet 242 abuts the collet anchor sleeve and remains radially expanded (or uncollapsed). The strut sleeve remains attached to the retainer 244 at the fitting 262. The strut sleeve eyes 260 are slid upwards along the longitudinally extending slot 290 and have been rotated into the pockets 292. The mechanically actuated lower mechanism 18 has been actuated while actuated while the upper mechanism 16, the clamp release assembly, remains in a locked position.
    [0035] Figure 2C shows the tool assembly with the collet release assembly actuated and the tool string in position to be pulled out of the hole. Liner hanger 102, now hanging, is detached from collet 242 again putting weight down on column. The compressive load on the collet assembly forces detachment at connection 262, with fingers 280 being forcefully pulled from retaining sleeve 284. Anchor sleeve 246, disengaged from the collet retainer and forced down by mandrel 210, moves longitudinally downward , as shown. The radial support surface 268 no longer supports the collet, which is now free to collapse radially, thereby releasing the collet eyes 252 from the recesses of the liner hanger 104. The collet fingers can be deflected radially inward or can simply be forced to collapse radially by sufficient upward pull resulting in slipping of the eyes on surfaces 256 through the surfaces of the liner hanger recess 106. The pull of the column moves the tool assembly out of the liner hanger and toward the surface. The tool can now be retrieved.
    [0036] Figures 3A-D are longitudinal cross-sectional views of a preferred embodiment of an exemplary tool assembly in a traction-loaded, pass-through position, in accordance with one aspect of the invention. Figures 4A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 viewed in a compressed-loaded position in accordance with one aspect of the invention. Figures 5A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 seen with the lower mechanically actuated mechanism in an actuated position in accordance with an aspect of the invention. Namely, the lower mechanism valve assembly is open. Figures 6A-D are longitudinal cross-sectional views of the preferred embodiment of the exemplary tool assembly of Figure 3 viewed in a weight-down position with the upper mechanically actuated mechanism actuated. Namely, the collet release assembly has been released. Note that each of Figures 3 through 6 is shown in cross section, but modified so that the right side of each drawing is taken in a cross section at thirty degrees rotated from the cross section on the left side of the Figures. This is done in order to show additional features of the mechanisms which otherwise would not appear in the Figures.
    [0037] Figure 7 is a cross-sectional detail taken as indicated in Figure 3B and is of a preferred embodiment of an exemplary tool assembly in a pass-through position, loaded in tension, in accordance with one aspect of the invention. Figure 8 is a detailed cross-sectional view taken as indicated from Figure 5B of the tool assembly having a lower actuated mechanically actuated mechanism. Figures 9-12 are cross-sectional views of the preferred embodiment of Figures 3-6 taken on correspondingly numbered lines. Many of the details of the Figures are not discussed as they will be self-evident to the practitioner of the art, known in the industry, or a matter of design choice. Figures are discussed together. Many of the details of the Figures are not discussed as they will be self-evident to the practitioner of the art, known in the industry, or a matter of design choice.
    [0038] A liner hanger tool column 300 is shown having a tool 301 with a liner hanger 302 mounted thereon and having a superior mechanically operated mechanism, i.e. a collet release assembly 440 and a mechanically operated mechanism lower, namely a sleeve operated valve assembly 500. The upper end of tool 301 connects to additional sections of a tool string (not shown) as is known in the art. The tool set defines an interior passage 303.
    [0039] Below the liner hanger 302 hangs a column of liners (not shown) as is known in the art. The weight of the liner hanger and liner column is placed in collet assembly 440 of the tool assembly. The tool assembly includes an inner mandrel 410 having a slot profile J 412 on its outer surface 414. In addition, the inner surface of the mandrel has a recess 416 and shoulder 418 which cooperate with the thrust nut 448 of the collet assembly.
    Collet assembly 440 has collet 442, collet retainer assembly 444, collet anchor sleeve assembly 446, and collet anchor nut assembly 448. Collet 442 includes a collet ring 454 of which one the plurality of collet fingers 450 extends, the fingers having eyes 452 that cooperate with recesses 304 of the liner hanger. The load-bearing faces 456 of the collet fingers contact the load-bearing faces 306 of the liner hanger. In addition, the liner hanger and collet assembly are locked in rotation so that torque is transferred between them as the inner surface of the liner hanger defines longitudinal splines 458 which extend between the collet fingers or eyelets 452. The collet is initially held in place by the radial support provided by the collet anchor sleeve 446. When the collet anchor sleeve drops, or slides longitudinally relative to the collet, the fingers flex radially inward, thereby releasing the collet from the liner hanger recesses and the liner hanger tool set.
    The collet anchor sleeve 446 slides longitudinally and rotationally relative to the mandrel 410 when the eyes 460 cooperate with the slot profile J 412 in the mandrel. Multiple eye and groove assemblies can be used, spacing the eyes circumferentially along the inner surface of the collet anchor sleeve 446. In addition, as shown, multiple rows of eyes can be employed, thereby reducing the torque load placed on any simple eye. The thrust sleeve has an upper shoulder 464 which opposes a lower shoulder 466 of the collet assembly, tensile load being transferred across the shoulders. The thrust sleeve has longitudinally extending support surfaces 468 and 472 which are slidably engaged with corresponding inner collet surfaces 470 and 474. These opposing surfaces maintain the collet fingers in a radially extended position during passage, weight down and rotation. during actuation of the lower mechanically actuated assembly (eg valve assembly), etc. The thrust sleeve has a lower shoulder 476 through which tensile load is transferred to an opposite upper shoulder 478 on the thrust nut 448.
    The collet anchor sleeve also has a releasable connection 462 with the retainer sleeve 444. The releasable connection can take many forms as are known in the art. In the preferred embodiment shown, retainer sleeve assembly 444 includes a set of longitudinally extending fingers 480 with eyes 482 that cooperate with a retainer sleeve 484 that extends from the upper end of thrust sleeve 446. An annular rib 486 defined on the upper rim of the retaining sleeve cooperates with the finger eyes 482. The releasable connection 462 keeps the thrust sleeve and collet retainer secured together until release is desired. The connection is moved away by applying weight down to the mandrel to pull fingers 480 from the cooperating retaining sleeve 484. The thrust nut 448 is threadedly secured to the mandrel 410 at 488. The thrust nut supports tensile load transferred from the thrust sleeve through faces 476 and 478. Tensile load is transferred to the mandrel via the threaded connection or other means.
    [0043] The retainer sleeve assembly 444 may be composed of multiple parts as shown. Sleeve 444 slides onto the mandrel. In the embodiment shown, the sleeve assembly is composed of multiple annular or tubular elements, connected by threads, annular nuts, etc. The lower end of the retainer sleeve is secured at 445 to the upper end of the collet ring 454 by threads, screw, pin, etc. The gripper and retainer sleeve remain attached to each other through all steps of using the tool at the bottom of the well and collectively, when not attached to the strut sleeve in the attachment 462, are free to float or slide up and down with respect to the arbor. A pin 457 slides into a corresponding longitudinal slot 459 defined outside the mandrel.
    [0044] The eyes 460 of the thrust sleeve 446 are slidably engaged in the slot J 412 of the mandrel and in a through position, or tension loaded position. The slot or J-profile 412 defined in the outer surface of the mandrel 410 includes a slot 490 that extends longitudinally allowing the eyes 460 to slide longitudinally in response to weight down on the pipe string. Profile 412 also includes a side pocket 492 allowing eye movement rotationally with respect to the mandrel. Preferably, the pockets are positioned for left rotation of the eyes. In such a way, this rotational movement to actuate an inferior mechanical device cannot act to unintentionally unscrew or operate right-hand rotating elements, such as joint connections, etc. As seen in Figure 7, the eyes 460 are shown at the bottom of the slot 490. In Figure 8, the eyes are seen relatively moved up and rotated left about a quarter of a turn so that the eyes 460 are now positioned in pockets 492 of slot J. (Note that the chuck and slot J are preferably moved down and rotated while the eyes remain basically stationary. Movement is relative).
    [0045] An adjustment sleeve assembly 499 which is not explained in detail here, secures thrust sleeve 446, via connector or nut 487 and pin or bolt 491, to adjustment sleeve 489. Sleeve 489 has a pin that extends inwardly 495 which slidingly cooperates with a longitudinal groove 493 on the outer surface of the thrust nut 448, allowing limited relative longitudinal movement. Adjustment sleeve 489, in turn, is secured to valve assembly housing 508 at connection 510.
    [0046] The mechanically actuated lower mechanism 500, in this case a flapper valve assembly, includes a housing 508. Between the housing 508 and a valve sleeve 502 there is positioned a diverter member 504, here a spring. The spring biases valve sleeve 502 upward and is compressed in the passage. The spring is seated in a valve element sleeve 514 and acts upwardly on shoulder 516 on the outside of the valve sleeve 502. The valve element sleeve 514 defines a recess for housing the valve element 518 when the valve is in an open position. , as seen in Figure 3D. A bottom valve seat sub 512 attaches to the valve element sleeve 514 at connection 520. Tool passage 303 continues to be defined within the tool assembly along the bottom sub, valve sleeve, etc., as shown. A valve element deflection mechanism 522, here a spring, deflects the valve element to a closed position, as seen in Figure 5D. The valve element, when closed, seals against the seat 524.
    [0047] The lower end 411 of the mandrel 410 is slidably engaged within the upper end of the valve sleeve 502. As best seen in Figure 10, a cross section taken on line 10-10 of Figure 3C, the valve housing 508 has radially inwardly extending, circumferentially spaced, inner splines 526 which cooperate with corresponding outer eyes 528 on the outer surface of valve sleeve 502. As seen in Figure 10, in an initial position, outer eyes 528 are partially under the splines 526, thereby preventing the eyes from sliding up between the splines and preventing the valve sleeve from sliding up. Likewise, the inner eyes 530 on the valve sleeve 502 cooperate with outer splines 532 at the lower end of the mandrel 410. After passage, when weight down is placed on the tool, the mandrel drops relative to the valve sleeve by an amount incremental. The chuck is preferably turned a quarter turn to the left. The outer splines 532 of the mandrel cooperate with the inner eyes of the valve sleeve, thereby forcing the valve sleeve to rotate. When the valve sleeve is rotated, the outer eyes 528 of the valve sleeve align between the inner splines 526 of the housing. The valve sleeve is free to move longitudinally with respect to the valve housing and the bias spring 504 forces the sleeve upward into an actuated position, as seen in Figures 5C-D. The sleeve moves away from the valve element 518 and the bias spring 522 forces the valve element into a closed position with the valve element seated against the valve seat 524 as seen in Figure 5D. Pipeline fluid can now be pumped against the valve, raising the internal pressure, to actuate various downhole tools.
    [0048] Figure 4 shows the tool after passing and weighing down the column. The chuck moved longitudinally in relation to the collet assembly. And the chuck is ready for a left turn to turn the valve sleeve. Figure 5 shows the tool set after a quarter rotation. The mechanically operated lower mechanism, ie the valve assembly, is actuated, closing the valve. Obviously, other types of valves can be employed and other types of mechanically operated assemblies can be actuated. Figure 6 shows the tool set released from the liner hanger. Weight was placed back down on the column and the clamp assembly elements separated as described above here. The collet, pulled loose from the liner hanger, tool assembly and column are then pulled from the wellbore.
    [0049] Figure 5 shows the tool assembly in a position where the slot J is engaged by the anchor glove eyes after weight down the column and left rotation. In this position, where the mechanically actuated lower mechanism 500 is actuated, the mandrel 410 has moved longitudinally relative to the liner hanger 302. Downward weight on the mandrel 410 moves the mandrel and collet anchor nut 448 relatively downward. Anchor sleeve 446, collet 442, collet retainer 444, and liner hanger 302 move relatively upward. Collet eyes 452 remain engaged in liner hanger recesses 304. Collet 442 abuts collet anchor sleeve and remains radially expanded (or uncollapsed). The strut sleeve remains attached to the retainer 444 at the fitting 462. The strut sleeve eyes 460 are slid up along the longitudinally extending slot 490 and have been rotated into the pockets 492. (Or, the mandrel slot J is moved longitudinally downward and rotated to engage eyebolts 460 in slit pockets J 492). The mechanically actuated lower mechanism 500 has been actuated while the upper mechanism 440, the collet release assembly, remains in a locked position.
    [0050] Figure 6 shows the tool assembly with the collet release assembly actuated and the tool string in position to be pulled out of the hole. Liner hanger 302, now hanging, is detached from gripper 242 again putting weight down on column. The compressive load on the collet assembly forces detachment at connection 462, with fingers 480 pulled forcibly from retaining sleeve 484. Anchor sleeve 446, disengaged from the collet retainer and forced down by chuck 410, moves longitudinally downward , as shown. The radial support surface 468 no longer supports the collet, which is now free to collapse radially, thereby releasing the collet eyes 452 from the recesses of the liner hanger 304. The collet fingers can be deflected to collapse radially inwardly or they can simply be forced to collapse radially by sufficient upward force resulting in the eyes sliding on surfaces 456 through the surfaces of liner hanger recess 306. Pulling the column moves the tool assembly out of the liner hanger and toward the surface. The tool can now be retrieved.
    [0051] Figure 6 shows the valve assembly in a closed position. The collet assembly can be actuated and the tool released from the liner hanger, etc., either before or after valve actuation. When the valve element is closed prior to tool release, the valve remains closed during pulling out, in a preferred mode. When the tool is released from the liner hanger without prior actuation of the valve assembly, the valve remains open during outward pull, as seen in Figure 6.
    [0052] Figure 9 is a cross-sectional view taken along line 9-9 of Figure 3B. The liner hanger 302 has longitudinal splines 458 into which the eyes 452 of the collet fingers 442 extend, thereby limiting axial movement of the collet. The outer splines 461 in the thrust sleeve 246 cooperate with the collet eyes 452. Finally, the slot profile J 412 is seen defined on the outer surface of the mandrel 410 with the thrust sleeve eyes 460 co-operating thereon. Figure 11 is a cross-sectional view taken along line 11-11 of Figure 5B. The 410 mandrel has a J 412 slot profile with 460 thrust sleeve inner eyes rotated to a new position. The thrust sleeve outer eyes 461 are positioned between the collet eyes 442. The now closed valve element 518 is seen through the interior passage. Figure 12 is a cross-sectional view taken along line 12-12 of Figure 5C. The lower mechanically operated mechanism was actuated. Inner eyes 530 on valve sleeve 502 cooperate with external splines 532 on the lower end of mandrel 410. Weight has been placed down on tool and mandrel drops relative to valve sleeve. The chuck has been turned a quarter of a turn to the left. The outer splines 532 of the mandrel which cooperate with the inner eyes of the valve sleeve, force the valve sleeve to rotate when the mandrel rotates. Now that the valve sleeve has rotated, the outer eyes 528 of the valve sleeve align between the inner splines 526 of the housing. The valve sleeve moved longitudinally relative to the valve housing and the bias spring 504 forced the sleeve upward into an actuated position, as seen in Figures 5C-D. The sleeve has moved away from the valve element 518 and the bias spring 522 forces the valve element to a closed position.
    [0053] The tool can be used in conjunction with actuation, expansion, or other assemblies, such as hydraulically actuated pistons, to perform additional downhole functions, such as expanding an expandable liner hanger. For further disclosure on installing a liner column in a downhole casing, see US Patent Application Publication 2011/0132622, to Moeller, which is incorporated herein by reference for all purposes. For further disclosure regarding cementation procedures and tools, see other references incorporated herein. For disclosure regarding expansion cone assemblies and their function, see U.S. Patent 7,779,910, to Watson, which is incorporated herein by reference for all purposes. For further disclosure regarding hydraulically adjustable liner hangers see US Patent 6,318,472, to Rogers, which is incorporated herein by reference for all purposes. See also PCT Application No. PCT/US12/58242, to Stautzenberger, which is incorporated herein by reference in its entirety for all purposes.
    [0054] In preferred embodiments, the following methods are disclosed; the steps are not exclusive and can be combined in a variety of ways. A method of performing an oilfield operation in an underground wellbore extending through a hydrocarbon-carrying zone, the method comprising the following steps: a. passing a tool string, upper and lower mechanically operated tool sets positioned on the tool string, a transported tool releasably attached to the tool string; B. actuate the lower mechanically operated tool set by manipulation of the tool column; and after that c. actuate the upper mechanically operated tool set by additional manipulation of the tool column. Additional steps and limitations may include, in various orders: where step a. further comprises releasably attaching a liner hanger to a releasable assembly; where the manipulation in step b. further comprises putting weight down on the tool string and rotating the tool string; where the manipulation of step b. further comprises rotating the tool column in a leftward direction; where the manipulation in step b. further comprises putting weight down on the tool string before rotating the tool string; wherein the downward weight placement longitudinally moves cooperating eyes along a slot profile J of the upper mechanically operated tool assembly; wherein the slot profile J is defined on the outer surface of a tool chuck; wherein the cooperating eyes extend from a collet release assembly to the slot profile J; wherein rotation of the tool string actuates the lower mechanically operated tool assembly; wherein rotation of the tool string causes relative longitudinal movement of a movable member of the lower mechanically operated tool assembly; wherein the movable element is a sliding sleeve; wherein the sliding sleeve is moved to move by a deflection mechanism; further comprising the steps of moving the sliding sleeve and, in response thereto, closing a valve element; where the manipulation in step c. further comprises putting weight down on the tool column; further comprising a step of performing an operational task in the wellbore between steps b. and c; wherein the operational task includes pumping fluid through the tool string.
    [0055] Examples of methods of using the invention are described with the understanding that the invention is determined and limited only by the claims. Those skilled in the art will recognize additional steps, different order of steps and that not all steps need be performed to practice the methods of the invention described.
    [0056] Persons skilled in the art will recognize various combinations and orders of the steps described above and details of the methods presented herein. While this invention has been described with reference to illustrative embodiments, this description is not intended to be construed in a limiting sense. Various modifications and combinations of the illustrative embodiments, as well as other embodiments of the invention, will be apparent to those skilled in the art upon reference to the description. It is, therefore, intended that the appended claims cover all such modifications or modalities.
    权利要求:
    Claims (16)
    [0001]
    1. Downhole tool assembly for use in a downhole, the assembly for transporting a tool loaded therein and selectively releasing the tool assembly from the tool loaded at a downhole location, the assembly characterized by the fact that it comprises: a tool string (10) extending from an upper end of the tool assembly; a tool chuck (12) extending longitudinally through the tool assembly; a mechanically operated upper assembly (16) mounted on the mandrel for longitudinal movement and relative rotation with respect to the mandrel; and a lower mechanically operated assembly (18) mounted on the mandrel for longitudinal movement or relative rotation with respect to the mandrel, the lower mechanically operated assembly positioned below the upper mechanically operated assembly and capable of performing a downhole task, wherein the set is configured to put in a weight down position, and rotate, the tool column and place still in a weight down position to release the tool set from the loaded tool.
    [0002]
    2. Downhole tool set according to claim 1, characterized in that the mechanically operated upper set is a release set (440) movable between a fixed position and a released position, wherein, in the released position , the tool set is released from the loaded tool.
    [0003]
    3. Downhole tool set according to claim 2, characterized in that the release set is still movable to an intermediate position before being moved to the released position and the release set is optionally a set of clamp.
    [0004]
    4. Downhole tool assembly according to claim 3, characterized in that the release assembly is a collet assembly (22) mounted for relative movement with respect to the mandrel and the collet assembly optionally includes a collet element to releasably secure to the loaded tool, a thrust sleeve (34) to selectively hold the collet member secured to the loaded tool, and a thrust nut (32) to control movement of the thrust sleeve.
    [0005]
    5. Downhole tool assembly according to claim 4, characterized in that the collet assembly includes the collet element (22) and the weight down on the tool assembly when located in the wellbore and in use of the tool set, relatively moves the chuck and collet element, and optionally the weight down on the tool set moves the chuck longitudinally with respect to the collet element.
    [0006]
    6. Downhole tool set according to claim 5, characterized in that, in use of the tool set, either: (A) the weight down on the tool set moves the chuck longitudinally with respect to the collet element (22), the downward weight on the tool assembly causes relative longitudinal movement of a slot profile J (17) defined in the mandrel and eyes (24) extending from the strut sleeve to the slot profile J, and, optionally, the downward weight results in relative movement of the thrust sleeve and the thrust nut (32), the thrust nut (32) fixedly attached to the mandrel; or (B) rotation of the tool assembly causes relative rotational movement of a slot profile J (17) defined in the mandrel and eyes (24) extending from the thrust sleeve to the slot profile J.
    [0007]
    7. Downhole tool set according to claim 1, characterized in that the mechanically operated lower assembly comprises a sliding sleeve assembly, and optionally either: the mechanically operated lower assembly comprises a valve assembly (40); and/or rotation of the mandrel causes rotation of the sliding sleeve.
    [0008]
    8. Downhole tool set according to claim 7, characterized in that the rotation of the mandrel causes rotation of the sliding sleeve and causes longitudinal movement of the sliding sleeve with respect to the mandrel, and, optionally, the longitudinal movement of the sliding sleeve opens a valve element (42).
    [0009]
    9. Method for carrying out an oilfield operation in an underground wellbore extending through a hydrocarbon-carrying zone, the method characterized in that it comprises the following steps: a. passing a tool string (10), upper and lower mechanically operated tool sets (16, 18) positioned on the tool string, a loaded tool releasably attached to the tool string; B. actuating the lower mechanically operated tool set by manipulating the tool string comprising placing the weight down on the tool set and rotating the tool set; and after that c. actuate the upper mechanically operated tool set by placing additional weight down on the tool column.
    [0010]
    10. Method according to claim 9, characterized in that step a. further comprises releasably attaching a liner hanger (13) to a release assembly, and/or the method further comprises a step of performing an operational task in the wellbore between steps b. and c.
    [0011]
    11. Method according to claim 10, characterized in that: the manipulation in step b. further comprises rotating the tool column in a leftward direction; and/or in step b., put weight down on the tool string before rotating the tool string; and/or tool column rotation actuates the lower mechanically operated tool assembly.
    [0012]
    12. The method of claim 11, characterized in that the downward weight placement longitudinally moves cooperating eyes along a slot profile J (212) of the upper mechanically operated tool assembly.
    [0013]
    13. Method according to claim 12, characterized in that the slot profile J is defined on the outer surface (214) of a tool chuck and optionally the cooperating eyes extend from a collet release assembly for slit profile J.
    [0014]
    14. Method according to claim 10, characterized in that the rotation of the tool string actuates the lower mechanically operated tool set, the rotation of the tool string causes relative longitudinal movement of a movable element of the operated tool set mechanically inferior.
    [0015]
    15. Method according to claim 14, characterized in that the movable element is a sliding glove (502) and optionally the sliding glove is deflected to move by a deflection mechanism (522) and/or the method it further comprises the steps of moving the sliding sleeve and, in response thereto, closing a valve element.
    [0016]
    16. Method according to claim 10, characterized in that the method further comprises a step of performing an operational task in the wellbore between steps b. and c, including pumping fluid through the tool string.
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    同族专利:
    公开号 | 公开日
    CA2889600A1|2014-05-01|
    AU2012392948A1|2015-04-30|
    CA2889600C|2018-05-29|
    EP2900896A4|2017-01-11|
    WO2014065814A1|2014-05-01|
    MX2015005240A|2015-10-29|
    SG11201503228VA|2015-05-28|
    IN2015DN03047A|2015-10-02|
    US20150041141A1|2015-02-12|
    US8881824B2|2014-11-11|
    US9828832B2|2017-11-28|
    US20140124220A1|2014-05-08|
    AU2012392948B2|2016-08-04|
    CN104838086A|2015-08-12|
    BR112015009373A2|2019-12-17|
    EP2900896A1|2015-08-05|
    CN104838086B|2017-03-08|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-06-23| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-04| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/10/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2012/062097|WO2014065814A1|2012-10-26|2012-10-26|Mechanically actuated device positioned below mechanically actuated release assembly utilizing j- slot device|
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