• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SYSTEMS AND METHODS FOR ASCENDING PIPE COUPLING. The present invention relates to systems and methods for the riser coupling. A riser coupling system comprises a riser joint connector comprising a first tube assembly coupled to a second tube assembly. The riser coupling system further comprises a spider assembly that receives the riser joint connector and a connector drive tool. The drive tool comprises a clamp assembly, a clamping tool and a spline member. The clamp assembly selectively extends a clamp to engage the riser joint connector. The tightening tool couples the first tube assembly and the second tube assembly. Finally, the spline member actuates a locking member of the riser joint connector.
    公开号:BR102013011798B1
    申请号:R102013011798-6
    申请日:2013-05-13
    公开日:2021-05-25
    发明作者:Blake T. Deberry；Morris B. Wade；James Daryl Kizer
    申请人:Dril-Quip, Inc.；
    IPC主号:
    专利说明:

    BACKGROUND
    [0001] The present description relates generally to well risers and more particularly to systems and methods for the riser coupling.
    [0002] In drilling or producing an offshore well, a riser can extend between a vessel or platform and the well. The riser can be as long as several thousand meters, and can be made up of successive riser sections. Riser sections with adjacent ends can be connected aboard the ship or platform, while the riser is lowered into position. Auxiliary lines, such as choke, buffer and/or reinforcement lines, can extend along the side of the riser to connect with the wellhead so that fluids can be circulated down into the wellhead to different purposes. Connecting riser sections in end-to-end relationship includes axially and angularly aligning two riser sections, including auxiliary lines, lowering a tubular member of an upper section of riser over a tubular member of a lower section of riser, and lock the two tubular members together to keep them in end-to-end relationship.
    [0003] The process of connecting riser section can require significant operator involvement which can expose the operator to risk of injury and fatigue. For example, the repetitive nature of the process over time can create a risk of repetitive strain injuries and increase the potential for human error. In addition, the process of connecting the riser section can involve heavy components and can be time-consuming. Therefore, there is a need in the art to improve the riser section connection process and resolve these issues. BRIEF DESCRIPTION OF THE DRAWINGS
    [0004] Some specific exemplary embodiments of the disclosure may be understood by reference, in part, to the accompanying description and drawings below.
    [0005] Figure 1A shows an angled view of an exemplary riser coupling system, in accordance with certain embodiments of the present disclosure.
    [0006] Figure 1B shows a top view of a riser coupling system, according to certain embodiments of the present disclosure.
    [0007] Figure 2 shows an angled view of a spider set before receiving a set of connectors, according to certain embodiments of the present disclosure.
    [0008] Figure 3A shows an angled view of an exemplary connector drive tool, according to certain embodiments of the present disclosure.
    [0009] Figure 3B shows a cross-sectional view of a connector drive tool, according to certain embodiments of the present disclosure.
    [00010] Figure 4 shows a cross-sectional view of a set of connectors, according to certain embodiments of the present disclosure.
    [00011] Figure 5 shows a cross-sectional view of landing of a riser section, which may include the lower tube assembly, the spider assembly, in accordance with certain embodiments of the present disclosure.
    [00012] Figure 6 shows a cross-sectional view of the execution of coupling the upper tube assembly to the lower tube assembly disembarked, according to certain embodiments of the present disclosure.
    [00013] Figure 7 shows an orientation cross-sectional view of an upper tube assembly with respect to a lower tube assembly, according to certain embodiments of the present disclosure.
    [00014] Figure 8 shows a cross-sectional view of a disembarked upper tubular assembly, according to certain embodiments of the present disclosure.
    [00015] Figure 9 shows a cross-sectional view of the drive tool engaging a riser joint before locking a riser joint, according to certain embodiments of the present disclosure.
    [00016] Figure 10 shows a cross-sectional view of a connector drive tool locking a riser joint, in accordance with certain embodiments of the present disclosure.
    [00017] Figure 11 shows a cross-sectional view of the connector drive tool retracted, according to certain embodiments of the present disclosure.
    [00018] While embodiments herein that are defined by reference to exemplary embodiments of the disclosure have been described and illustrated, such references do not imply a limitation on the disclosure, and no limitation should be inferred. The subject described is capable of considerable modifications, alterations, and equivalents in form and function, as will occur to those skilled in the pertinent art and having the benefit of this disclosure. The modalities depicted and described in this disclosure are examples only, and are not exhaustive of the scope of the disclosure. DETAILED DESCRIPTION
    [00019] The present description relates generally to well risers and more particularly to systems and methods for the riser coupling.
    [00020] Illustrative embodiments of the present disclosure are described in detail herein. In the interest of clarity, not all features of an actual implementation can be described in this specification. It will, of course, be understood that in the development of any real modality, numerous specific implementation decisions must be made to achieve specific implementation objectives, which vary from one application to another. Furthermore, it will be appreciated that such a development effort can be complex and time-consuming, but that it will nevertheless be a routine task for those of ordinary skill in the art having the benefit of the present description. To facilitate a better understanding of the present disclosure, the following examples of certain modalities are provided. In no way should the following examples be read to limit or define the scope of the disclosure.
    [00021] For the purposes of this disclosure, an information manipulation system may include any instrumentality or aggregate of instrumentality operable to calculate, classify, process, transmit, receive, retrieve, originate, interrupt, store, display, manifest, detect, record , reproduce, handle, or use any type of information, intelligence, or data for business, scientific, control, or other purposes. For example, an information handling system may be a personal computer, a network memory device, or any other suitable device, and may vary in size, shape, performance, functionality, and price. The information handling system may include random access memory (RAM), one or more processing resources such as a central processing unit (CPU) or software control hardware or logic, ROM, and/or other types of memory non-volatile. Additional components of the information handling system can include one or more disk drives, one or more network ports for communicating with external devices, as well as various input and output (I/O) devices such as a keyboard, mouse, and a video screen. The information handling system may also include one or more buses operable to transmit communications between the various hardware components.
    [00022] For the purposes of this description, computer readable media may include any instrumentality or aggregation of instrumentalities that may retain data and/or instructions for a period of time. Computer readable media may include, for example, without limitation, storage media such as a direct access storage device (eg a hard disk drive or floppy disk drive), a sequential access storage device (eg. , a tape disk drive), compact disk, CD-ROM, DVD, RAM, ROM, programmable electrically erasable read-only memory (EEPROM), and/or flash memory, as well as communications media such as wires, optical fibers , microwave, radio waves, and/or any combination of the above.
    [00023] For the purposes of this disclosure, a sensor may include any suitable type of sensor, including, but not limited to, optical, frequency, pressure, torque, acoustic or proximity sensors.
    [00024] Figure 1A shows an angled view of an exemplary riser coupling system 100, in accordance with certain embodiments of the present disclosure. Figure 1B shows a top view of the riser coupling system 100. The riser coupling system 100 may include a spider assembly 102 adapted to one or more of receiving, at least partially orienting, engaging, holding and actuating. a riser joint connector 104. Spider assembly 102 may include one or more connector drive tools 106. In certain embodiments, a plurality of connector drive tools 106 may be spaced radially about an axis 103 of the assembly. Spider 102. By way of non-limiting example, two connector drive tools 106 may be disposed about a circumference of the spider assembly 102 in an opposing placement. The non-limiting example of Figure 1 shows three pairs of opposing connector drive tools 106. It should be understood that various embodiments can include any appropriate number of connector drive tools 106.
    [00025] As illustrated in Figure 1B, certain embodiments may include one or more guide members 105 arranged radially around axis 103 to facilitate orientation of riser joint connector 104. By way of example, without limitation, three Guide members 105 may include a cylindrical or generally cylindrical shape that extends upwardly from a surface of spider assembly 102. Guide members 105 may function as guides to interface with riser connector 104 as the joint connector. of riser tube 104 is lowered towards spider assembly 102, thus facilitating orientation and/or alignment. In certain embodiments, the guide members 105 may be equipped with one or more sensors (not shown) to detect the position and/or orientation of the riser joint connector 104, and corresponding signals may be transferred to a signal handling system. information, at any suitable location on a ship or platform by any suitable means, including wired or wireless means.
    [00026] The spider assembly 102 may include a base 108. The base 108, and the spider assembly 102 in general, may be mounted directly or indirectly on a surface of a ship or platform. For example, base 108 can be disposed on or near a probe floor. In certain embodiments, the base 108 may include or be coupled to a gimbal assembly to facilitate balancing despite the sway of the sea.
    [00027] Figure 2 shows an angled view of the spider assembly 102, before receiving the riser joint connector 104 (shown in Figures 1A and 1B). The non-limiting example of spider assembly 102 with base 108 includes a generally circular geometry around a central opening 110 configured to pass sections of riser through it. Various alternative modalities can include any suitable geometry.
    [00028] Figure 3A shows an angled view of an exemplary connector drive tool 106, according to certain embodiments of the present disclosure. Figure 3B shows a cross-sectional view of the connector actuating tool 106. The connector actuating tool 106 may include connecting means 112 to allow connection to the base 108 (omitted in Figures 3A, 3B). As shown, the connecting means 112 may include a number of threaded screws. However, it should be appreciated that any suitable means of directly or indirectly coupling the connector drive tool 106 to the rest of the spider assembly 102 (omitted in Figures 3A, 3B) may be employed.
    [00029] The connector drive tool 106 may include a clamp assembly 114. The clamp assembly 114 may include a clamp 116 and a piston assembly 118 configured to move the clamp 116. The piston assembly 118 may include a piston 120, a piston cavity 122, one or more hydraulic lines 124 to be fluidly coupled with a hydraulic power supply (not shown), and a bracket 126. The bracket 126 can be coupled to a support structure 128 and the piston 120 so that piston 120 remains stationary with respect to support structure 128. Support structure 128 may include or be coupled to one or more support plates. By way of example, without limitation, support structure 128 may include or be coupled to support plates 130, 132, and 134. Support plate 130 may provide support for clamp 116.
    [00030] With proper hydraulic pressure applied to the piston assembly 118 from the hydraulic power source (not shown), the piston cavity 122 can be pressurized to displace the clamp 116 with respect to one or more of the piston 120, the support 126, support structure 128, and support plate 130. In the illustrated non-limiting example, each of the piston 120, the support 126, the support structure 128, and the support plate 130 is adapted to remain in place. stationary, although clamp 116 moves. Figures 3A and 3B depict clamp 116 in an extended state relative to the rest of the connector actuating tool 106.
    [00031] The connector drive tool 106 may include a tightening tool135. By way of example, without limitation, clamping tool 135 may include one or more of an upper drive piston 136, a drive piston mandrel 138, and a lower drive piston 140. Each of the upper drive piston 136 and lower actuating piston 140 may be fluidly coupled to a hydraulic power supply (not shown) and may be movably coupled to actuating piston mandrel 138. With proper hydraulic pressure applied to upper and lower actuating pistons 136 , 140, the upper and lower drive pistons 136, 140 can move longitudinally along the drive piston mandrel 138 towards a middle portion of the drive piston mandrel 138. Figures 3A and 3B show the pistons of top and bottom trigger 136, 140 in a non-triggered state.
    [00032] Drive piston chuck 138 can be extendable and retractable relative to support frame 128. A motor 142 can be drively coupled to piston drive chuck 138 to selectively extend and retract piston drive chuck 138. By way of example, without limitation, motor 142 can be drive coupled to a sliding gear 144 and a sliding gear rack 146, which in turn can be coupled to support plate 134, support plate 132, and to the piston drive mandrel 138. The support plates 132, 134 can be movably coupled to the support structure 128 to extend or retract along with the piston drive mandrel 138, while the support structure 128 remains stationary. Figures 3A and 3B depict the sliding gear rack 146, the support plates 132, 134 and the piston drive chuck 138 in a retracted state relative to the rest of the connector drive tool 106.
    [00033] The connector drive tool 106 can include a motor 148, which can be a torque motor, mounted with the support plate 134 and drive-coupled to a splined member 150. Splined member 150 can also be mounted to extending and retracting support plate 134. It should be understood that, while a non-limiting example of the connector actuation tool 106 is described, alternative embodiments may include appropriate variations, including, but not limited to, a clamp assembly on an upper portion. of the connector drive tool, any appropriate number of drive pistons in any appropriate position of the connector drive tool, any suitable motor arrangements, and the use of electric drives, in combination with or in lieu of hydraulic drives.
    [00034] In certain embodiments, the connector 106 actuation tool may be equipped with one or more sensors (not shown) to detect the position, orientation, pressure, and/or other parameters of the connector 106 actuation tool. For example non-limiting, one or more sensors can detect the positions of clamp 116, fastening tool 135, and/or spline member 150. Corresponding signals can be transferred to an information handling system at any suitable location on the ship or platform. by any suitable means, including wired or wireless means. In certain embodiments, the control lines (not shown) for one or more of the motors 148, the fastening tool 135, and the clamp assembly 114 can be fed back to the information handling system by any suitable means.
    [00035] Figure 4 shows a cross-sectional view of a riser assembly connector 104, in accordance with certain embodiments of the present disclosure. The riser joint connector 104 may include an upper tube assembly 152 and a lower tube assembly 154, each disposed in end-to-end relationship. The upper tube assembly 152 may sometimes be referred to as a box, the lower tube assembly 154 may be referred to as a pin.
    [00036] Certain embodiments may include a sealing ring (not shown) between the tubular members 152, 154. The upper tubular assembly 152 may include grooves 156 about its lower end. Lower member 154 may include grooves 158 about its upper end. A locking ring 160 may be disposed about grooves 156, 158 and may include teeth 160A, 160B. Teeth 160A, 160B may correspond to slots 156, 158. Locking ring 160 may be radially expandable and contractible between an unlocked position in which teeth 160A, 160B are spaced apart from slots 156, 158, and a locking position in which locking ring 160 has been forced inward so that teeth 160A, 160B engage with grooves 156, 158 and thus lock the connection. Thus, the locking ring 160 can be radially movable between a normally expanded position, unlocked position and a radially contracted locking position, which can have an interference fit. In certain embodiments, the locking ring 160 can be split around its perimeter so that it expands outward normally to its unlocked position. In certain embodiments, the locking ring 160 may include segments joined together to cause it to normally assume a radially outward position, but be collapsible into the contractile position.
    [00037] A cam ring 162 may be disposed over the lock ring 160 and may include inner cam surfaces that are slidable over the surfaces of the lock ring 160. The cam surfaces of the cam ring 162 may provide a means of force locking ring 160 inward to a locked position. Cam ring 162 may include an upper member 162A and a lower member 162B with corresponding protrusions 162A' and 162B'. Upper member 162A and lower member 162B may be configured as opposing members. The cam ring 162 can be configured so that movement of the upper member 162A and the lower member 162B relative to each other forces the lock ring 160 inward to a locked position via the inner cam surfaces of the cam ring. 162.
    [00038] The riser joint connector 104 may include one or more locking members 164. A given locking member 164 may be adapted to extend through a portion of the cam ring 162 to hold the upper member 162A and the lower member 162B in a locking position, where each has been moved towards the other to force locking ring 160 inward to a locked position. The locking member 164 may include a splined portion 164A and may extend through a flange 152A of the upper tube assembly 152. The locking member 164 may include a retaining portion 164B which may include a lip, but not if limits the latter to abut the upper member 162A. Locking member 164 may include a tapered portion 164C to fit a portion of upper member 162A. The locking member 164 may include a threaded portion 164D for threadingly engaging the lower member 162B.
    [00039] The riser joint connector 104 may include one or more auxiliary lines 166. For example, not limiting, the auxiliary lines 166 may include one or more of hydraulic lines, choke lines, buffer lines, and reinforcement lines. Auxiliary lines 166 may extend through flange 152A and a flange 154A of lower tube assembly 154. Auxiliary lines 166 may be adapted to connect between flanges 152A, 154A, for example, by means of a connection fit.
    [00040] The riser joint connector 104 may include one or more connector guidance guides 168. A given connector guidance guide 168 may be disposed around a lower portion of the riser joint connector 104. By way of example, without limitation, connector guidance guide 168 may be coupled to flange 154A. Connector Orientation Guide 168 may include one or more tapered surfaces 168A formed to, at least in part, orient at least a portion of riser gasket connector 104 when interfacing with one of clamp assemblies 114. of clamp 114 contacts one or more of the tapered surfaces 168 of the connector orienting guide 168, the one or more tapered surfaces 168A may facilitate axial alignment and/or rotational orientation of the riser joint connector 104 by offsetting the gasket connector from riser 104 to a predetermined position relative to clamp assembly 114. In certain embodiments, connector orienting guide 168 may provide a first stage of an orientation process for orienting lower tube assembly 154.
    [00041] The riser joint connector 104 may include one or more guide guides 170. In certain embodiments, the one or more guide guides 170 may provide a second stage of an orientation process. A given guideway 170 may be disposed around a lower portion of the riser joint connector 104. By way of example, without limitation, the guideway 170 may be formed on the flange 154A. Guide guide 170 may include a recess, cavity or other surfaces adapted to mate with a corresponding guide pin 172 (shown in Figure 5).
    [00042] Figure 5 shows a cross-sectional view of a riser landing section, which may include the lower tube assembly 154, in the spider assembly 102, according to certain embodiments of the present disclosure. In the disembarked state example shown, the clamps 116 were extended to retain the tube assembly 154, and the two-stage guide features guided the lower tube assembly 154. Specifically, the connector guide guide 168 had already facilitated axial alignment and /or the rotational orientation of the lower tube assembly 154, and one or more of the clamp assemblies 114 may include a guide pin 172 which extends to engage with the guide guide 170 to ensure a desired final orientation.
    [00043] The execution tool 174 can be adapted to engage, raise and lower the lower tubular assembly 154 within the spider assembly 102. In certain embodiments, the execution tool 174 can be adapted to test the auxiliary lines 166 as well. For example, the execution tool 174 can test the pressure of the choke and damper lines coupled below the lower tube assembly 154.
    [00044] In certain embodiments, one or more of the execution tool 174, tube assembly 154, and auxiliary lines 166 may be equipped with one or more sensors (not shown) to detect position, orientation, pressure, and/or other parameters associated with said components. Corresponding signals may be transferred to an information handling system at any suitable location on the ship or platform by any suitable means, including wired or wireless means.
    [00045] Figure 6 shows a cross-sectional view of routing the upper tube assembly 152 to the landed lower tube assembly 154, according to certain embodiments of the present disclosure. Executing tool 174 can be used to engage, raise and lower the upper tube assembly 152. The upper tube assembly 152 can be lowered onto a connecting nose 178 of the lower tube assembly 154.
    [00046] In certain embodiments, the execution tool 174 may include one or more sensors 176 to facilitate the alignment and/or correct orientation of the upper tube assembly 152. The one or more sensors 176 may be located in any suitable positions on the tool 174. In certain embodiments, the tubular member 152 may be equipped with one or more sensors (not shown) to detect the position, orientation, pressure, and/or other parameters of the tubular member 152. Corresponding signals may be transferred to a information handling system, at any suitable location on the ship or platform by any suitable means, including wired or wireless means.
    [00047] Figure 7 shows a cross-sectional view of the orientation of the upper tube assembly 152 with respect to the lower tube assembly 154, according to certain embodiments of the present disclosure. It should be understood that the orientation of the upper tube assembly 152 can be performed at any suitable stage of the lowering process, or throughout the lowering process.
    [00048] Figure 8 shows a cross-sectional view of the upper tubular assembly 152 landed, according to certain embodiments of the present disclosure.
    [00049] Figure 9 shows a cross-sectional view of the connector drive tool 106 engaging the riser joint connector 104 before locking the riser joint connector 104, in accordance with certain embodiments of the present disclosure. As described, drive piston mandrel 138 can be extended toward riser joint connector 104. Top drive piston 136 can engage protrusion 162A' and/or an adjacent groove of cam ring 162. Accordingly, the lower actuating piston 140 may engage the protrusion 162B' and/or an adjacent groove of the cam ring 162. The spline member 150 may also be extended toward the riser joint connector 104. As shown, the member splined 150 can engage locking member 164. In various embodiments, drive piston mandrel 138 and splined member 150 can be extended simultaneously or at different times.
    [00050] Figure 10 shows a cross-sectional view of the drive tool 106 locking the riser joint connector 104, in accordance with certain embodiments of the present disclosure. As shown, with the proper hydraulic pressure having been applied to the upper and lower drive pistons 136, 140, the upper and lower drive pistons 136, 140 are moved longitudinally along the drive piston mandrel 138 towards a middle portion. of the drive piston mandrel 138. The upper member 162A and lower member 162B of the cam ring 162 are thus forced towards each other, which can act as a clamp which in turn forces the locking ring 160 inward, to a locked position via the inner cam surfaces of the cam ring 162. As shown, the locking member 164 may be in a locked position after the motor 148 has driven the spline member 150, which in turn has driven the locking member. 164 to the locked position to lock the cam ring 162 in a clamping position. In various embodiments, the locking member 164 can be actuated to the locked position, while the cam ring 162 transitions to a locked position or at a different time.
    [00051] Figure 11 shows a cross-sectional view of the connector drive tool 106 retracted, in accordance with certain embodiments of the present disclosure. From that position, the making tool 174 (shown in the previous figures) can engage the riser joint connector 104 and lift the riser joint connector 104 away from the guide pin 172. The clamps 114 can be retracted, the riser joint connector 104 may be lowered past the spider assembly 102, and the process of disembarking a next lower tubular may be repeated. It should be understood that a disassembly process may involve reversing the process described here.
    [00052] Accordingly, certain embodiments of the present disclosure allow for hands-free riser coupling systems and methods. Certain modalities allow minimal and remote operator involvement. As a result, certain modalities provide safety improvements, in part by eliminating or significantly reducing direct operator involvement that would otherwise expose an operator to the risk of injury, fatigue and a potential increase in human error. In addition, certain modalities allow for greater speed and efficiency in the riser section coupling process. Certain modalities allow for lighter coupling components, for example, eliminating or significantly reducing the need for heavy bolts and flanges. This can save material usage and increase the speed and efficiency of the riser section coupling process.
    [00053] Therefore, the present disclosure is well suited to achieve the aforementioned purposes and advantages, as well as those that are inherent therein. The particular embodiments described above are illustrative only, as the present disclosure may be modified and practiced in different, but equivalent ways, apparent to those skilled in the art having the benefit of the teachings disclosed herein. Although the figures show embodiments of the present disclosure with a particular orientation, it should be understood by those skilled in the art that the embodiments of the present disclosure are well suited for use in a variety of orientations. Therefore, it should be understood by those skilled in the art that the use of directional terms such as above, below, top, bottom, ascending, descending and the like are used in relation to the illustrative modalities, as they are represented in the figures, being ascending towards the top of the corresponding figure, and the downward direction being towards the bottom of the corresponding figure.
    [00054] Furthermore, there are no limitations on the construction or design details presented herein, except as described in the claims below. Therefore, it is evident that the particular illustrative embodiments described above may be altered or modified and all such variations are considered within the scope and spirit of the present disclosure. Furthermore, the terms of the claims have their common, ordinary meaning, unless expressly and clearly defined by the patent holder. The indefinite articles "a" as used in the claims are defined herein to mean one or more than one of the elements that the particular article introduces, and the subsequent use of the definite article "a" or "the" is not intended. to deny that meaning.
    权利要求:
    Claims (11)
    [0001]
    1. Riser coupling system (100) comprising: a riser joint connector (104), characterized in that it comprises: a first tube assembly (152) coupled to a second tube assembly (154); a cam ring (162) having an upper member (162A) and a lower member (162B), wherein the upper member (162A) and lower member (162B) are adjustable to hold the first tubular assembly (152) and the second tubular assembly (154) together; and a locking ring (160), wherein movement of the upper member (162A) and the lower member (162B) towards each other locks the locking ring; a spider assembly (102) having a connector drive tool (106), wherein the spider assembly (102) receives the riser joint connector (104) and wherein the connector drive tool (106) comprises: a clamp assembly (114) wherein the clamp assembly (114) selectively extends a clamp (116) to engage the riser joint connector (104); a tightening tool (135), wherein the tightening tool couples the first tube assembly and the second tube assembly (154); and a splined member (150), wherein the splined member (150) drives a locking member (164) of the riser joint connector (104).
    [0002]
    2. Riser coupling system according to claim 1, characterized in that the tightening tool (135) actuates at least one of the upper member (162A) and the lower member (162B) of the cam ring (162).
    [0003]
    3. Riser coupling system according to claim 1, characterized in that it further comprises an execution tool (174) wherein the execution tool (174) moves the first tube assembly (152) in orientation with the second tube assembly (154).
    [0004]
    4. Riser coupling system according to claim 3, characterized in that at least one of the execution tool (174) and the spider assembly (102) is remotely operated.
    [0005]
    A riser coupling system according to claim 1, characterized in that the clamp assembly (114) further comprises a piston assembly (118), wherein the piston assembly (118) is operable to extend the clamp (116) to engage the riser joint connector (104).
    [0006]
    6. Riser coupling system according to claim 5, characterized in that the piston assembly (118) is hydraulically driven.
    [0007]
    7. Riser coupling system according to claim 1, characterized in that the tightening tool (135) comprises an upper drive piston (136), a drive piston mandrel (138) and a piston lower drive (140).
    [0008]
    8. Riser coupling system according to claim 1, characterized in that the splined member (150) is extensible.
    [0009]
    9. Riser coupling system according to claim 1, characterized in that it further comprises a sensor, wherein the sensor detects the position of at least one of the clamp (116), the tightening tool (135 ) and the splined element (150).
    [0010]
    10. Riser coupling system according to claim 1, characterized in that the connector drive tool further comprises a motor and in which at least one of the tightening tool (135) and the splined member ( 150) is driven by the motor (148).
    [0011]
    A riser coupling system according to claim 1, characterized in that it further comprises the locking member (164) of the riser joint connector (104), wherein the locking member (164) is adjustable to keep the cam ring (162) in a locked position.
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    GB201308625D0|2013-06-19|
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    法律状态:
    2015-06-30| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-03-24| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-25| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/05/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261646847P| true| 2012-05-14|2012-05-14|
    US61/646,847|2012-05-14|
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