DRIVE MODULE FOR A WELL TRACTOR AND WELL TRACTOR

专利摘要:
well conveyor. a drive module for a well or well drilling tractor or conveyor comprises a drive module housing and a pivoting and hydraulically activated drive arm comprising an arm housing and a drive wheel arranged therein, wherein the drive wheel is driven by a motor mounted outside the drive arm housing and arranged along and parallel with the drive arm in rest position and over or within the drive module wall to the cavity arranged or provided for the arm of drive, and in which the drive wheel is actionably connected to the engine by means of a drive line arrangement, that is, by means of a chain or belt drive arrangement and, additionally, by means of a gear angle or gear arrangement mounted outside the drive arm housing. a well conveyor or tractor or well drilling comprises at least one of said drive modules.
公开号:BR112015011098B1
申请号:R112015011098-3
申请日:2012-11-26
公开日:2021-06-15
发明作者:Petter Guttormsen；Jan Ellingsen；Christophe Tarayre
申请人:Halliburton Energy Services, Inc；
IPC主号:

专利说明:

Technical Field
[0001] The invention relates to a well conveyor for use in pipelines and well drilling for the production of oil and gas. Background of the Invention
[0002] In pipelines and well boreholes having lengths of several km, there is generally a need to transmit down different equipment and tools and/or collect or acquire measured data or sampling, etc. For these purposes of pulling well tractors or tools having different modalities that are used, some of which have wheels or chains providing axial bearing of the well tractor or tool pulling on the well drilling wall or pipe. The bearing(s) or chain(s) is (are) pressed against the borehole wall or pipe with a force that is sufficient to achieve the desired axial thrust force under a number of varying friction conditions. Power supply is commonly accomplished through a cable-to-surface connection.
[0003] Well-known well tractors or tools use electrical/hydraulic operation(s). This means that an electric motor drives a hydraulic pump, which again supplies power to the hydraulic motor(s) in the drive wheel(s). Such a system will be technically complex and, consequently, low efficiency will be achieved. With a limited power supply through long cable(s), the pulling or propulsion force will be substantially limited. In many operations, large attractive or repulsive force or energy is desirable. Invention Summary
[0004] It is, therefore, an objective of the invention to provide a substantially greater performance and/or efficiency for the well conveyor.
[0005] Another objective of the invention is to meet, in a simple and robust way, the functional requirements for the well conveyor with respect to handling restrictions and sharp bends or other obstacles without getting stuck.
[0006] Yet another objective of the invention is to overcome some disadvantages and inconveniences of the state of the art.
[0007] According to one aspect of the invention, this is achieved with the help of a conveyor or well tractor or well drilling as described and specified in this publication.
[0008] According to another aspect of the invention this is achieved with the help of a drive module for a well conveyor as described and specified in this publication.
[0009] A drive module for a well conveyor or tractor or well drilling comprises a drive module housing and a pivoting drive arm and is hydraulically actuated comprising an arm housing and a drive wheel arranged therein, wherein the drive wheel is driven by a motor mounted outside the drive arm housing and arranged along and parallel with the drive arm in rest position and over or within the drive module wall to the arranged cavity or provided for the drive arm, and in which the drive wheel is actionably connected to the motor by means of a drive line arrangement, that is, by means of a belt or chain drive arrangement and, additionally, by by means of an angular gear or gear arrangement mounted outside the drive arm housing.
[00010] A well conveyor or tractor or well drilling comprises at least one of said drive modules.
[00011] The gear or angular gear arrangement of the drive line arrangement can be a bevel gear combined with a belt or double chain drive arrangement. Alternatively, the drive line arrangement may comprise a bevel gear combined with a planetary gear and a belt or single chain drive arrangement.
[00012] The main aspects of the invention are provided in the independent claims. Additional aspects of the present invention are provided in the dependent claims. Brief description of the figures
[00013] These and other aspects of the invention are apparent and will be further elucidated, by way of example(s), with reference to the drawings, in which:
[00014] Fig. 1 shows in perspective in an embodiment of a conveyor or well tractor or well drilling according to the present invention;
[00015] Fig. 2A-2C shows different views and a cross section of an embodiment of a drive module for the conveyor or well tractor or well drilling according to the present invention;
[00016] Fig. 3A-3D shows different views of important drive line elements of the drive module for the conveyor or well tractor or well drilling according to the present invention. Detailed Description of Modalities
[00017] In the present invention, the propulsion effect is provided without using hydraulics. In this way, a substantially higher performance is achieved by the well conveyor or tractor or well drilling.
[00018] A wellbore conveyor or tractor or wellbore must be able to negotiate different constraints, sharp bends and/or other obstacles without getting stuck. In order to achieve these required or important functions, a solution has been provided of the present invention, thus making it possible to meet the requirements in a simple and robust manner.
[00019] Fig. 1 shows, in perspective, an embodiment of a conveyor or well tractor or well drilling 1 according to the present invention. The well conveyor 1 comprises or is being divided into two units, wherein the well conveyor 1 and in particular each of the units are provided with an outer housing 20. In this embodiment the well conveyor 1 is shown comprising two 10', 10" drive units, a hydraulic unit 14, an electronic module unit 15, the top or near end or side module unit 30 and an end or bottom or far side end or side module unit 13, in that the top end or side of or near the well conveyor 1 can be defined as the end of the well conveyor 1 being closer to the location where the well conveyor 1 entered the well bore or pipeline, than the other end of well conveyor 1, which is being defined as the end or side of the bottom or away from said well conveyor 1.
[00020] A tension substitute (not shown) to monitor cable tension can be positioned at the top end of well conveyor 1. This tension substitute can be used to prevent well conveyor 1 from running over cable 26 during reverse operation. The tension substitute can presumably be arranged or placed at the cable attachment point at the top of the well conveyor 1, for example at the top side module unit, also called (top) UMT (user module top) 30 .
[00021] Centering module(s) may presumably be required in order to stabilize well conveyor 1 in the center of a housing or pipe, and may presumably be arranged or placed as or in the module unit. top side or UTM 30 unit. With this construction/design this can be achieved by the fact that the well conveyor 1 must always be kept centered within a pipe or well bore or housing. This is a condition to allow efficient positioning of equipment and/or operation of measuring tool(s), etc.
[00022] Each 10', 10" drive unit may comprise at least one 11', 12', 11", 12" drive module and, in this mode of well conveyor 1, each 10' drive unit, respectively 10 ”, comprises two drive modules 11', 12', respectively 11”, 12”. There can be, for example, four 11’, 12’, 11”, 12” drive modules having drive arms on a 10’, 10” drive unit or body. Larger number (than four) of drive modules in a drive unit may also be possible. Larger number (than two) of drive units on the well conveyor may be possible as well. Each 10', 10' drive unit may additionally comprise a motor controller or MC module (not shown).
[00023] A desired design of the well conveyor 1 comprises two drive units 10', respectively 10" having two drive modules 11', 12', respectively 11", 12", each 90°, 180° and 270° degrees of angle and one arm relative to the other arms seen in a section perpendicular to the longitudinal axis of the well conveyor 1. Of course, other suitable angles should also be possible (eg 120 and 240 degrees of displacement from each other, etc. .).
[00024] The electronic module unit 15 may comprise at least one of: a power supply module, a telemetry module and a conveyor or tractor controller module.
[00025] The hydraulic unit 14 can be used to, for example, operate or actuate a hydraulic actuator, for example a hydraulic cylinder, providing manipulating a drive wheel / arm of a drive module 11', 12', 11 ”, 12”. The hydraulic unit 14 may comprise a pressure compensation chamber against the well and a volume expansion chamber. In addition, it comprises an electric motor and a pump, as well as a valve system and sensor(s) (pressure) in order to operate and/or control the hydraulic actuation of each drive module arm 16. The motor, pump and valve system are being controlled, for example, electronically by a controller (unit) in the electrical or electronics module 15.
[00026] The end or far side end or side module unit 13 can be used as an interface to payload module(s) that can be connected or coupled to it, in which a load module useful is, for example, and not limited to only, a tool or equipment that must be loaded and operated in the well or pipe, such as, for example, anchors, actuators, mills / pestles, logging equipment, etc.
[00027] Several control systems and additional modules can be integrated or connected to the well conveyor 1, when or in need or if necessary, in order, for example, to monitor different / various functions and/or operations of the well conveyor 1 and/or its units or elements.
[00028] The module and/or unit configuration shown in fig. 1 is just an example and such, however other well conveyor 1 module / unit configurations may be just as suitable.
[00029] Fig. 2A-2C shows different views and a cross section of a modality of a drive module 11', 12', 11", 12" for the conveyor or well tractor or well drilling 1 according to present invention.
[00030] Each 11', 12', 11", 12" drive module has individual propulsion with a determined maximum pull or pulling force or energy, based on engine capacity and friction between the 17 drive wheel and the pipe or housing wall (not shown). Therefore, configuring a predetermined number of 10', 10" drive units respectively 11', 12', 11", 12" drive module in series can provide the desired or required propulsion force capacity for the well conveyor 1.
[00031] The 11’, 12’, 11”, 12” drive module can move in both directions, where the drive wheel 17 moves in both directions of rotation with identical speed and/or capacity.
[00032] Each 11', 12', 11", 12" drive module comprises a motor 21, for example, an electric motor, a drive wheel 17 and a drive line arrangement 22, 23 between motor 21 and the drive wheel 17. The drive wheel 17 and some parts of the drive line arrangement 22, 23 are installed on a drive arm 16 in order to allow various distances from the rest of the drive module 11', 12 ', 11", 12", respectively the well conveyor 1, in order to reach the housing wall or drilling well or pipe in which it runs.
[00033] The position of the drive wheel 17 / arm 16 can be manipulated using a pressure adjustable hydraulic actuator 18, eg pressure adjustable hydraulic cylinder.
[00034] Each arm 16 can be individually activated or deactivated / returned to its rest or closed position, if necessary (eg in case of malfunction in the drive line arrangement 22, 23 in a drive module 11', 12', 11", 12").
[00035] The pivotal connections of the arm 16 and the attachment point for the positions of the hydraulic cylinder 18 have a geometry that allows for a relatively linear relationship between the contact force from the drive wheel 17 on the housing or barrel and the pressure of corresponding hydraulic cylinder 18, valid for the entire range of drive wheel 17 in relation to drive module 11', 12', 11”, 12” (which simplifies the need for control for hydraulic pressure).
[00036] The contact force of the drive wheel 17 over or against or towards the housing or pipe or well bore can be adjusted in order to obtain a required or desired friction, simply by manipulating the pressure of cylinder 18. Additionally , a very simple traction control system or arrangement can be implemented based on achieving the required or desired friction by setting the cylinder pressure 18 as a function of the push and pull force defined by the operator for the well conveyor. A computing unit can be connected to automatically regulate hydraulic pressure to cylinder 18 based on the operator's push and pull force commands.
[00037] A possible design has a spring return function (clock spring) exerting continuous force on the arm 16, where the drive arm 16 can be articulated to a single hydraulic actuator 18 and a rotational retraction spring (not shown). An alternative design could be to utilize a dual or dual actuation hydraulic actuator 18, eg dual or dual motion hydraulic cylinder, providing hydraulic operation of drive arm 16. Both designs provide arm 16 return / drive wheel 17 in rest or closed position.
[00038] In order to control the rotation, speed and position of the drive wheel 17, each 11', 12', 11", 12" drive module may also comprise and/or use required or possible control components, means and /or systems, which can be fully or partially arranged, for example, in the motor controller module.
[00039] Each drive wheel 17 and/or motor 21 can be independently controlled and operated. Although each 11', 12', 11", 12" drive module is mechanically independent from other drive module(s), it may be possible or necessary to connect to them or have them communicate together in order to synchronize rotation, speed, position, torque, force or other characteristics for one drive wheel 17 with all other drive wheels 17, for all drive modules installed 11', 12', 11”, 12”.
[00040] With reference numeral 40 in fig. 2A and 2B a cover 40 for the motor 21 and/or the drive line 22 being arranged in the housing 20 is shown.
[00041] A cavity 27 arranged or provided for the drive arm 16 and the drive wheel 17, when being in a rest position and being along and parallel with the motor 21 and the drive line 22 hidden by the cover 40, is shown in fig. 2A and 2C.
[00042] Fig. 3A-3D shows different views of important drive line elements or drive module components 11', 12', 11", 12" for conveyor or well tractor or well drilling 1 according to the present invention.
[00043] A detailed description regarding the drive line arrangement 22, 23 and the position of its components or elements will be given below.
[00044] The motor 21 is arranged or installed outside the arm 16. In order to keep a longitudinal length of the drive module 11', 12', 11", 12" as short as possible, the motor 21 and the drive line 22 are installed parallel to arm 16 in rest position (fig. 3A).
[00045] The bevel or angular gear or gear arrangement 22 can be an individual module in the drive line arrangement 22, 23.
[00046] The axis of extension on or of the angular gear 22 has a center axis identical to the rotational (or oscillating) axis of the arm (drive) 18.
[00047] In one possible design, the motor 21 is connected to a drive wheel 17 with an angle gear 22 and two chains or belts 24', 24” connected in series. An alternative design could be to replace one of the chains or belts 24 with a planetary gear (not shown), on the same axis as the extension shaft in angular gear 22, in order to obtain the desired gear ratio.
[00048] A 23 chain or belt drive has very low sensitivity to independent component positioning tolerances (chain/belt parallelism, etc.) compared to, for example, gears, thus providing a robust system.
[00049] Motor 21, angle gear 22 and belt or chain housing (arm housing) 16 may all have individual and separate lubrication to prevent spreading pollution between them. All chambers can be pressure equalized with the surrounding ones by external pressure equalization chambers.
[00050] The current/chain drive 23 comprises, as shown in fig. 3A-3D, two 24', 24" chains or belts connected in series, where the shared shaft for both drives are axially displaceable, such as the clamping mechanism 25 shown can be used to tighten both 24' chains and belts, 24".
[00051] The clamping mechanism 25 can also serve as a damper in the drive line arrangement 22, 23, such that impulses/shocks from the drive wheel 17 will be damped before reaching the angular gear 22 and the motor 21.
[00052] Arm 16 with drive wheel 17 is being activated or rotated outward from rest or closed position towards at least one extended position by use of hydraulic cylinder 18.
[00053] In a possible design, the arm 16 may have a contact surface/profile 19 (in fig. 2B) serving as a rotational stop 19 for the arm 16 at maximum torsion/expansion of the arm 16. The profile 19 of the arm 16 contacts a corresponding profile on the 11', 12', 11”, 12” drive module body. The purpose of this stop 19 is to simplify hydraulic cylinder 18 so that cylinder 18 itself will not need a stop to ensure its outward stretching or end expansion, something that would require sufficient space. Thus, the outward/end stretch or stop position of the arm 16 is provided instead of the swing limitation or outward stretching of the arm 16 itself.
[00054] The geometric relationships between the rotational axis for the arm 16 and the attachment points for the hydraulic cylinder 18 are chosen to be the best possible, so that in a hydraulic pressure fixes the force outward on the drive wheel 17 will be kept constant throughout the entire ratio of drive wheel 17 relative to drive module 11', 12', 11", 12" (which simplifies the need for hydraulic pressure control).
[00055] The hydraulic system or cylinder 18 for activation and/or control of arm 16 is made to allow deactivating (pulling) each arm 16 (eg one or more) independently without any need to deactivate the other arms 16. Deactivation of arm can be made if, for example, a drive line problem 22, 23 for an arm is registered, or if, for example, a special (changed) centering of the well conveyor 1 in the well or pipe is desired or required. Such a function will be of significance when entering y sections in/of the well or pipe. In a y-section, the well conveyor or tractor must be able to change centering in order to enter or go beyond.
[00056] The hydraulic system or cylinder 18 to control the activation or control of arm 16 can also control the force out of arm 16 (thus also drive wheel 17) on the pipe or pit wall, thus optimizing/ adjusting it according to current or present conditions (pipe or housing wall condition, thrust force, drive wheel condition, etc.).
[00057] Motor 21 can be supplied with power through cable line 26 or a cable element 26' (fig. 2C) of cable line 26. Cable (line) or wire 26 provides electrical power supply and signals of feedback and/or control for the tractor or motion unit / well conveyor. Cable 26 is, in addition, used to pull the movement unit from the well under normal conditions. Such wires (e-line) are sourced from various manufacturers and with various constructions and/or sizes, thus having varying length and electrical capacity (depending on the number of conductors and/or conductor cross-section). More challenging is a single conductor cable when communication must be provided over the electrical power supply for the operation of the motion unit or conveyor/well tractor. In addition, there is certainly a limitation on the power transmission capacity of a cable due to the conductor cross-section and/or cable length and the fact that there are limitations on the allowable voltage that must be applied to the cable. This is why the well hauler / tractor has great practical significance. With low efficiency tractors present, it is often necessary to cut or shorten the length of wire in order to be able to transfer the required electrical energy, for example if there is an extra length of cable to be cut or removed in accordance with depth operating or working, where the problem will consequently be that an expensive wire or cable (line) has been damaged. This can be avoided by the higher efficiency of the well conveyor / tractor according to the present invention. It is possible to go deeper and use the capacity of the well conveyor or tractor according to the present invention without being restricted by the power transmission capacity.
[00058] The well conveyor 1 and its unit or modules may have an elongated cylindrical shape.
[00059] Several gear ratio steps can be provided by the drive line arrangement 22, 23.
[00060] Adaptations, changes and additional modifications of the present invention will be properly suggested to those skilled in the art without departing from the scope of the invention as expressed and stated in the following patent claims.

权利要求:
Claims (15)
[0001]
1. Drive module (11', 12', 11", 12") for a well tractor, characterized in that it comprises: a drive module housing (20) defining a cavity (27) therein, and a drive arm (16) which is hydraulically actuated and pivotable into or out of the cavity (27), the drive arm (16) comprising an arm housing and a drive wheel (17) arranged therein, wherein the drive wheel (17) is driven by a motor (21) mounted outside the drive arm housing (16) and arranged along and parallel with the drive arm (16) in rest position, and wherein the drive wheel (17) is driveably connected to the motor (21) by means of a drive line arrangement (22, 23) comprising a belt or chain drive arrangement (23) comprising two belts or chains (24', 24”) connected in series, and an angle gear or gear arrangement (22) mounted outside the drive arm housing (16).
[0002]
2. Drive module (11', 12', 11", 12"), according to claim 1, characterized in that it additionally comprises a hydraulic actuator (18) providing the manipulation of the drive arm (16) of the same.
[0003]
3. Drive module (11', 12', 11", 12"), according to claim 1 or 2, characterized in that the drive line arrangement (22, 23) comprises a bevel gear (22 ) combined with belt or chain drive arrangement; and optionally wherein the belt or chain drive arrangement (23, 24', 24") further comprises a tightening mechanism (25) being used to tighten a chain or belt (24', 24"), and optionally further in that the clamping mechanism (25) serves as a damper in the drive line arrangement (22, 23), so that thrusts or shocks from the drive wheel (17) will be dampened before reaching the angle gear (22 ) and the engine (21).
[0004]
4. Drive module (11', 12', 11", 12"), according to claim 1 or 2, characterized in that the belt or chain drive arrangement (23, 24', 24") further comprises a tightening mechanism (25) being used to tighten a chain or belt (24', 24"), and optionally wherein the watertight mechanism (25) serves as a damper in the drive line arrangement (22, 23) , so that the impulses or shocks from the drive wheel (17) will be dampened before reaching the angular gear (22) and the motor (21).
[0005]
5. Drive module (11', 12', 11", 12"), according to any one of claims 1 to 4, characterized in that the extension axis in the angular gear (22) has an identical center axis to the oscillating or rotational axis of the drive arm (18).
[0006]
6. Drive module (11', 12', 11", 12"), according to any one of claims 1 to 5, characterized in that the belt or chain drive arrangement (23) is arranged within the drive arm housing (16).
[0007]
7. Drive module (11', 12', 11", 12"), according to any one of claims 1 to 6, characterized in that the drive line arrangement (22, 23) provides several steps of gear ratio.
[0008]
8. Drive module (11', 12', 11", 12"), according to any one of claims 1 to 7, characterized in that each arm (16) is individually activated or deactivated with respect to the any other drive module.
[0009]
9. Drive module (11', 12', 11", 12"), according to any one of claims 1 to 8, characterized in that it additionally comprises a traction control arrangement, in which the contact force of the drive wheel (17) against the housing or pipe or well bore is adjustable, to obtain a required or desired friction, by manipulating the cylinder (18) pressure as a function of a push and pull force defined by an operator. ; and optionally, wherein a computing unit regulates the hydraulic pressure to the cylinder (18) based on the operator's push and pull force command.
[0010]
10. Well tractor (1), characterized in that it comprises at least one of the drive unit (10', 10") comprising at least one drive module (11', 12', 11", 12") as per defined in any one of claims 1 to 9; and optionally wherein the electronic module unit (15) comprises at least one of: a power supply module, a telemetry module and a tractor controller module.
[0011]
11. Well tractor (1) according to claim 10, characterized in that it comprises at least one of: a hydraulic unit (14), an electronic module unit (15), an end module unit or top or near side (30) and an underside module unit (13); and optionally wherein the electronic module unit (15) comprises at least one of: a power supply module, a telemetry module and a tractor controller module.
[0012]
12. Well tractor (1), according to claim 10 or 11, characterized in that the hydraulic unit (14) is being used to operate or actuate the hydraulic actuator (18) providing to manipulate the drive wheel ( 17) / arm (16) of the drive module (11', 12', 11”, 12”).
[0013]
13. Well tractor (1) according to any one of claims 10 to 12, characterized in that it further comprises a second drive module, the second drive module being as defined in any one of claims 1 to 9 , in which the drive wheels (17) and/or motors (21) of the first and second modules are controlled and operated independently of each other.
[0014]
14. Well tractor (1), according to any one of claims 10 to 13, characterized in that all mechanically installed independent drive modules (11', 12', 11", 12") communicate together with in order to synchronize rotation, speed, position, torque or other characteristics for a drive wheel (17) with all other drive wheels (17) of the same.
[0015]
15. Well tractor (1), according to any one of claims 10 to 14, characterized in that all drive arms (16) in the drive modules (11', 12', 11", 12") of the drive units (10', 10”) have a predetermined angle or degree offset from each other, seen in a section perpendicular to the longitudinal axis of the sump tractor (1).

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法律状态:
2018-02-06| B25C| Requirement related to requested transfer of rights|Owner name: WELL STARTUP 1 AS (NO) |

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2018-04-10| B25L| Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: publication cancelled|Owner name: WELL STARTUP 1 AS (NO) Free format text: ANULADA A PUBLICACAO CODIGO 25.3 NA RPI NO 2457 DE 06/02/2018 POR TER SIDO INDEVIDA. Owner name: WELL STARTUP 1 AS (NO) |

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2018-05-22| B25A| Requested transfer of rights approved|Owner name: HALLIBURTON ENERGY SERVICES, INC. (US) |

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2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-02-04| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-05-18| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-06-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/11/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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PCT/NO2012/050235|WO2014081305A1|2012-11-26|2012-11-26|Well runner|

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