CN109138897B - Well head centering device and well repair equipment with same - Google Patents
Well head centering device and well repair equipment with same Download PDFInfo
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- CN109138897B CN109138897B CN201811126761.6A CN201811126761A CN109138897B CN 109138897 B CN109138897 B CN 109138897B CN 201811126761 A CN201811126761 A CN 201811126761A CN 109138897 B CN109138897 B CN 109138897B
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- 230000008439 repair process Effects 0.000 title abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 333
- 238000012546 transfer Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 56
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
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- 238000001514 detection method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
Abstract
The invention provides a well head centering device and well repair equipment with the same, wherein the well head centering device is used for centering equipment on a well head, and comprises: a support mechanism for connecting and supporting the apparatus; the vertical moving mechanism is arranged on the supporting mechanism and is used for driving the equipment to move along the vertical surface; the horizontal moving mechanism and the vertical moving mechanism are arranged on the horizontal moving mechanism and are used for driving equipment to move along a horizontal plane. By the technical scheme provided by the invention, the problem that equipment is not easy to center to a wellhead in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of petroleum equipment, in particular to a wellhead centering device and well repair equipment with the same.
Background
In the existing oilfield workover operation, especially in the pressurized operation process, accurate wellhead centering is important for the safe use of workover equipment and the quality assurance of the construction process.
With the large-area use of workover rigs, before the workover operation starts and lowers the oil pipe, a vehicle driver almost stops the vehicle near a wellhead according to experience, and then the gravity operation of hanging a travelling hook by a steel wire rope is used for centering the wellhead by adjusting the pitching angle of the derrick. In the use process, the reversing is often not in place, the inclination angle of the derrick of the workover rig is overlarge, the gravity center of the big hook is deviated or the wellhead is deviated from the left and right centers of the derrick too much, and the centering is not easy; especially in the pressurized operation process, the blowout preventer must be installed by the loop wheel machine, and the blowout preventer of this moment is in the suspended state completely and moves about the hook and can not guarantee that focus and well head are centered in the in-process of lifting down, causes blowout preventer or pipe fitting damage in the oil pipe process of lifting out or going into, brings the potential safety hazard.
In order to improve the operation defect of the workover rig on the wellhead in the existing workover process, it is necessary to design a device capable of accurately centering the wellhead.
Disclosure of Invention
The invention provides a wellhead centering device and well repair equipment with the same, which are used for solving the problem that equipment is not easy to center to a wellhead in the prior art.
In order to solve the above problems, according to one aspect of the present invention, there is provided a wellhead centering device for centering an apparatus on a wellhead, comprising: a support mechanism for connecting and supporting the apparatus; the vertical moving mechanism is arranged on the supporting mechanism and is used for driving the equipment to move along the vertical surface; the horizontal moving mechanism and the vertical moving mechanism are arranged on the horizontal moving mechanism and are used for driving equipment to move along a horizontal plane.
Further, the vertical moving mechanism includes: and the connecting rod mechanism is used for driving the equipment to translate along the vertical plane.
Further, the link mechanism includes: the first mounting frame is arranged on the horizontal moving mechanism; the supporting mechanism is arranged on the second mounting frame; the two ends of the second connecting rod are respectively hinged with the first mounting frame and the second mounting frame; the first mounting frame, the second mounting frame, the first connecting rod and the second connecting rod form a parallelogram mechanism.
Further, the vertical movement mechanism further includes: and one end of the first driving part is hinged with the first mounting frame, the other end of the first driving part is hinged with the first connecting rod, and the first driving part can stretch and retract to drive the first connecting rod to swing.
Further, the horizontal movement mechanism includes: the first rotation mechanism is used for driving the vertical movement mechanism to rotate along the horizontal plane.
Further, the support mechanism includes: the first bracket is connected with the vertical moving mechanism; the first connecting frame is movably arranged on the first bracket and is used for connecting equipment.
Further, the support mechanism further includes: the second driving part is arranged on the first bracket and is used for driving the first connecting frame to ascend or descend in the vertical direction.
Further, the first support is provided with the guide way along vertical direction, is provided with the gyro wheel on the first link, and the gyro wheel can roll in the guide way in order to lead to first link.
Further, the support mechanism further includes: the landing leg is arranged below the first bracket, can stretch out and draw back along the vertical direction and is used for being supported on the ground.
According to another aspect of the invention there is provided well servicing equipment comprising a carrier vehicle and a wellhead centering device, the wellhead centering device being provided on the carrier vehicle, the wellhead centering device being provided as described above.
Further, the well servicing equipment further comprises a lifting device movably disposed on the support mechanism of the wellhead centering device, the lifting device comprising: the telescopic mechanism comprises a telescopic part and a grabbing part for grabbing materials, the grabbing part is connected with the telescopic part, and the telescopic part can stretch to drive the grabbing part to move; the mast mechanism is used for supporting the telescopic mechanism and can be vertically arranged.
Further, telescopic machanism is a plurality of, and a plurality of telescopic machanism intervals set up on mast mechanism, and a plurality of telescopic machanism can lift material respectively, and elevating gear still includes: the mast mechanism is arranged on the second slewing mechanism, and the second slewing mechanism can drive the mast mechanism to rotate so as to change the working positions of the telescopic mechanisms.
Further, the two telescopic mechanisms are arranged on two sides of the mast mechanism along the length direction of the mast mechanism, and the second slewing mechanism can rotate 180 degrees to exchange working positions of the two telescopic mechanisms.
Further, the lifting device further includes: the second rotating mechanism is arranged on the second bracket; the first locking part is arranged on the second bracket and can lock the second slewing mechanism to prevent the second slewing mechanism from rotating.
Further, the lifting device further includes: the mast mechanism is rotatably arranged on the second bracket so as to change the working positions of the telescopic mechanisms; and the second locking part can lock the mast mechanism on the second bracket so as to fix the working positions of the telescopic mechanisms.
Further, the telescopic portion is provided along a length direction of the mast mechanism, the mast mechanism including: fixing the mast; and the telescopic mast is telescopically arranged in the fixed mast and is used for guiding the telescopic part.
Further, the telescoping portion includes: the cylinder rod of the hydraulic cylinder is fixed on the mast mechanism, and the cylinder barrel of the hydraulic cylinder can slide along the length direction of the mast mechanism; the lifting pulley block is arranged at the end part of the cylinder barrel of the hydraulic cylinder; and the pulling steel wire rope is wound on the pulling pulley block and connected with the grabbing part, and is used for pulling up the grabbing part.
Further, the telescoping portion further includes: the downward pressing pulley block is arranged at the end part of a cylinder rod of the hydraulic cylinder; the sliding frame is slidably arranged on the hydraulic cylinder and is connected with the grabbing part to guide the grabbing part; and the pushing down steel wire rope is wound on the pushing down pulley block and connected with the sliding frame, and is used for pushing down the grabbing part.
Further, the workover rig still includes transfer device, and transfer device sets up on the transport vechicle, and transfer device includes: the clamping mechanism is used for clamping materials; the clamping mechanism is arranged on the swinging mechanism, and the swinging mechanism is used for driving the clamping mechanism to swing; the lifting mechanism is arranged on the lifting mechanism and is used for lifting and descending the swinging mechanism.
Further, the swing mechanism includes: the clamping mechanism is arranged at one end of the swing arm; the third rotation mechanism is arranged on the lifting mechanism and is used for driving the swing arm to swing.
Further, the clamping mechanism is hinged with the swing arm, and the swing mechanism further comprises: the third driving part is arranged on the swing arm and is used for driving the clamping mechanism to rotate on the swing arm.
Further, the gripping mechanism includes: the second connecting frame is arranged on the swinging mechanism; the clamp is a plurality of, and a plurality of clamps set up side by side on the second link in order to press from both sides the material jointly.
Further, the clamping mechanism comprises a clamp, the clamp comprises a claw frame, a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are both hinged to the claw frame, and the size of an opening between the first clamping jaw and the second clamping jaw can be adjusted to clamp or release materials.
Further, the jig further includes: the third clamping jaw and the fourth clamping jaw are hinged on the claw frame; the first clamping jaw is connected with the third clamping jaw through a third connecting rod to drive the third clamping jaw to rotate, and the second clamping jaw is connected with the fourth clamping jaw through a fourth connecting rod to drive the fourth clamping jaw to rotate; the area between the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw forms a clamping space for clamping materials, and the size of the clamping space can be adjusted to clamp or release the materials.
Further, the lifting mechanism includes: the lifting arm is arranged at one end of the swinging mechanism, and can move to lift or descend the swinging mechanism; the other end of the lifting arm is connected with the mounting seat.
By applying the technical scheme of the invention, the support mechanism, the vertical moving mechanism and the horizontal moving mechanism are arranged in the wellhead centering device, so that the blowout preventer or other equipment can be connected and supported through the support mechanism, the position of the blowout preventer on a vertical surface can be adjusted through the vertical moving mechanism, and the position of the blowout preventer on a horizontal surface can be adjusted through the horizontal moving mechanism. By the arrangement, the blowout preventer can be accurately adjusted in position through the vertical moving mechanism and the horizontal moving mechanism, so that the blowout preventer can be conveniently centered on a wellhead. Thus, the problems that a driver is difficult to center and equipment is possibly damaged due to empirical operation can be avoided, and the operation efficiency and the safety are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 illustrates a schematic structural view of a wellhead centering device provided by an embodiment of the present application;
FIG. 2 shows a top view of FIG. 1;
FIG. 3 illustrates a displacement schematic of the wellhead centering device of FIG. 1;
FIG. 4 shows a schematic structural diagram of well servicing equipment provided by an embodiment of the present application;
FIG. 5 shows a schematic view of a portion of the components of the lifting device of FIG. 4;
FIG. 6 shows a schematic view of another part of the lifting device of FIG. 4;
FIG. 7 shows a schematic structural view of the mast mechanism of FIG. 5;
FIG. 8 shows a schematic structural view of the telescopic mechanism of FIG. 5;
FIG. 9 shows a schematic displacement of the lifting device of FIG. 4 in operation;
fig. 10 shows a schematic structural view of the transfer device of fig. 4;
FIG. 11 shows a side view of the gripping and swing mechanism of FIG. 10;
FIG. 12 shows a schematic structural view of the clamp of FIG. 10;
fig. 13 shows a side view of fig. 12.
Wherein the above figures include the following reference numerals:
110. a support mechanism; 111. a first bracket; 112. a first connection frame; 113. a second driving section; 114. a roller; 115. a connecting seat; 116. a support leg; 120. a vertical movement mechanism; 121. a first mounting frame; 122. a second mounting frame; 123. a first link; 124. a second link; 125. a first driving section; 130. a horizontal movement mechanism; 131. a rotary gear; 132. a drive gear; 140. a sixth driving section; 210. a telescopic part; 211. a hydraulic cylinder; 212. pulling out the pulley block; 213. pulling up the steel wire rope; 214. pressing down the pulley block; 215. a carriage; 216. pressing down the steel wire rope; 220. a gripping part; 230. a mast mechanism; 231. fixing the mast; 232. a telescoping mast; 240. a second swing mechanism; 241. a revolving body; 242. a fifth driving section; 251. a second bracket; 252. a first locking part; 253. a seventh driving section; 254. a clamping tongue; 255. a second locking part; 260. a lifting mechanism; 310. a clamping mechanism; 311. a second connecting frame; 312. a clamp; 313. a claw stand; 314. a first jaw; 315. a second jaw; 316. a third jaw; 317. a fourth jaw; 318. a fourth link; 320. a swinging mechanism; 321. swing arms; 322. a third swing mechanism; 323. a third driving section; 330. a lifting mechanism; 331. a lifting arm; 332. a mounting base; 333. a fourth driving section; 400. blowout preventer; 500. and (5) a transport vehicle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a wellhead centering device for centering an apparatus to a wellhead, comprising: a support mechanism 110 for connecting and supporting the apparatus; the vertical moving mechanism 120, the supporting mechanism 110 is arranged on the vertical moving mechanism 120, and the vertical moving mechanism 120 is used for driving equipment to move along a vertical plane; the horizontal moving mechanism 130, the vertical moving mechanism 120 is disposed on the horizontal moving mechanism 130, and the vertical moving mechanism 120 is used for driving the device to move along the horizontal plane.
By applying the technical scheme of the invention, the support mechanism 110, the vertical moving mechanism 120 and the horizontal moving mechanism 130 are arranged in the wellhead centering device, so that the blowout preventer 400 or other equipment can be connected and supported through the support mechanism 110, the position of the blowout preventer on a vertical surface can be adjusted through the vertical moving mechanism 120, and the position of the blowout preventer on a horizontal surface can be adjusted through the horizontal moving mechanism 130. The arrangement allows precise positional adjustment of the blowout preventer by the vertical and horizontal movement mechanisms 120, 130 so that centering of the blowout preventer on the wellhead may be facilitated. Thus, the problems that a driver is difficult to center and equipment is possibly damaged due to empirical operation can be avoided, and the operation efficiency and the safety are improved.
In the present embodiment, the vertical movement mechanism 120 includes: and the connecting rod mechanism is used for driving the equipment to translate along the vertical plane. The movement in the vertical plane can be realized with a simple structure by adopting the link mechanism.
Specifically, the link mechanism includes: a first mounting frame 121 provided on the horizontal movement mechanism 130; the second mounting frame 122, the supporting mechanism 110 is disposed on the second mounting frame 122; a first link 123 and a second link 124, both ends of the first link 123 being respectively hinged with the first mounting frame 121 and the second mounting frame 122, both ends of the second link 124 being respectively hinged with the first mounting frame 121 and the second mounting frame 122; the first mounting bracket 121, the second mounting bracket 122, the first link 123, and the second link 124 constitute a parallelogram mechanism. The arrangement thus allows translation of the device in the vertical plane by means of the parallelogram mechanism, thus preventing tilting of the device when adjusting the position of the device. The device has simple structure and stable and reliable movement.
In the present embodiment, the vertical movement mechanism 120 further includes: the first driving part 125, one end of the first driving part 125 is hinged with the first mounting frame 121, the other end of the first driving part 125 is hinged with the first connecting rod 123, and the first driving part 125 can stretch and retract to drive the first connecting rod 123 to swing. The parallelogram mechanism can be driven to move through the expansion and contraction of the first driving part 125, so that the blowout preventer is driven to translate.
In the present embodiment, the horizontal movement mechanism 130 includes: the first rotation mechanism is used for driving the vertical movement mechanism 120 to rotate along the horizontal plane. This allows the vertical movement mechanism 120 and thus the blowout preventer to rotate in a horizontal plane through the turning action of the first turning mechanism.
Specifically, the first swing mechanism includes: a swing gear 131, the vertical movement mechanism 120 being provided on the swing gear 131; a driving gear 132 engaged with the swing gear 131, the driving gear 132 for driving the swing gear 131 to rotate. In this way, the driving gear 132 and the turning gear 131 cooperate to drive the vertical moving mechanism 120 to rotate in the horizontal plane. The arrangement mode is stable and reliable in transmission.
In the present embodiment, the support mechanism 110 includes: a first bracket 111 connected to the vertical movement mechanism 120; a first connection frame 112 movably provided on the first bracket 111, the first connection frame 112 for connecting devices. This allows connection to the vertical movement mechanism 120 via the first bracket 111 and to the apparatus via the first connection bracket 112. The position of the device can be adjusted by the first connection frame 112, if necessary.
In the present embodiment, the supporting mechanism 110 further includes: the second driving part 113 is disposed on the first bracket 111, and the second driving part 113 is used for driving the first connecting frame 112 to ascend or descend in the vertical direction. Thus, the position adjustment of the blowout preventer in the height direction can be realized through the second driving part 113, so that the requirements of different blowout preventers or wellheads with different heights can be met, and the blowout preventers and wellheads can be conveniently centered.
In the present embodiment, the first bracket 111 is provided with a guide groove in a vertical direction, and the first connection frame 112 is provided with a roller 114, and the roller 114 can roll in the guide groove to guide the first connection frame 112. In this way, the first connecting frame 112 can be guided by the cooperation of the roller 114 and the guide groove, so that the displacement stability is improved.
As shown in fig. 1 and 2, in the present embodiment, the supporting mechanism 110 further includes a connection holder 115, the connection holder 115 is disposed on the first connection frame 112, and the connection holder 115 is used for detachable connection with the apparatus. The blowout preventer may be reliably secured to the wellhead centering device by the connection mount 115 and then moved by the wellhead centering device to be centered with the wellhead.
In the present embodiment, the supporting mechanism 110 further includes: the support leg 116 is arranged below the first bracket 111, the support leg 116 can extend and retract in the vertical direction, and the support leg 116 is used for being supported on the ground. The support of the blowout preventer or other component may be provided by the provision of legs 116 to ensure reliability and stability of the device.
As shown in fig. 4, an embodiment of the present invention further provides a well servicing apparatus, which includes a carrier 500 and a wellhead centering device provided on the carrier 500, the wellhead centering device being the wellhead centering device provided above. By using the well repairing equipment, the whole movement and transition of the equipment can be facilitated, and the disassembly and assembly workload is reduced.
When the technical scheme is applied, the positioning of the wellhead is not needed to be carried out on the construction site according to the assistance of a driver or a crane, and particularly, in the pressurized operation process, the blowout preventer can be installed together with the wellhead centering device, so that the blowout preventer is accurately connected with the wellhead and is safely fixed. In the early stage of workover construction, the complex operation of workman centering well head has been significantly reduced to the security of preventer automation installation's possibility and job site has been improved greatly. According to the technical scheme, the accurate positioning of the wellhead can be realized, and when the wellhead is centered, no person can be nearby the wellhead, so that the safety of an operation site is improved; and the wellhead centering device can adapt to different wellhead heights, so that the adaptability of the well repairing device is improved.
As shown in fig. 5 to 9, the workover rig further includes a lifting device movably disposed on the support mechanism 110 of the wellhead centering device, the lifting device including: the telescopic mechanism comprises a telescopic part 210 and a grabbing part 220 for grabbing materials, the grabbing part 220 is connected with the telescopic part 210, and the telescopic part 210 can stretch and retract to drive the grabbing part 220 to move; the mast mechanism 230 is used for supporting the telescopic mechanism, and the mast mechanism 230 can be vertically arranged. Thus, the material can be automatically and efficiently grabbed and lifted by the lifting device.
In this embodiment, a plurality of telescopic mechanisms may be provided, and a plurality of telescopic mechanisms are provided on the mast mechanism 230 at intervals, and the telescopic mechanisms are capable of lifting and lowering materials respectively. By applying the technical scheme of the embodiment, the telescopic mechanism and the mast mechanism 230 are arranged in the lifting device, wherein the mast mechanism 230 is used for supporting the telescopic mechanism, the telescopic part 210 in the telescopic mechanism can drive the grabbing part 220 to move through telescopic driving so as to lift the oil pipe or other materials, and the telescopic mechanism is multiple, so that the oil pipe can be lifted by using the telescopic mechanisms respectively, and the lifting efficiency of the oil pipe and other materials can be improved. In operation, the blowout preventer may be first centered with the wellhead by the wellhead centering device and then the riser is used to remove or lower the tubing from the well.
As shown in fig. 6, the lifting device further includes: the second swing mechanism 240, the mast mechanism 230 is disposed on the second swing mechanism 240, and the second swing mechanism 240 can drive the mast mechanism 230 to rotate to change the working positions of the plurality of telescopic mechanisms. By providing the second swing mechanism 240, the operating positions of the plurality of telescopic mechanisms can be changed by swinging. Thus, the production efficiency can be improved by simultaneously operating a plurality of telescopic mechanisms.
As shown in fig. 5, in the present embodiment, there are two telescopic mechanisms, and the two telescopic mechanisms are disposed at two sides of the mast mechanism 230 along the length direction of the mast mechanism 230, and the second swing mechanism 240 can be turned 180 degrees to exchange the working positions of the two telescopic mechanisms. Two telescopic mechanisms are arranged in the lifting device, one telescopic mechanism can be used for taking out and putting in the oil pipe, the other telescopic mechanism can be used for storing or taking out the new oil pipe from the taken out oil pipe, so that the two telescopic mechanisms can be operated simultaneously, the oil pipe is taken out or put in from the wellhead after being taken out and put in the storage position, the waiting time can be avoided, and the production efficiency is greatly improved.
Specifically, the second swing mechanism 240 includes: a revolving body 241, the mast mechanism 230 being provided on the revolving body 241; fifth driving portion 242, fifth driving portion 242 is tooth-engaged with rotary body 241 to drive rotary body 241 to rotate. In this way, the mast mechanism 230 can be driven to rotate by the cooperation of the fifth driving part 242 and the revolving body 241, so that the working position of the telescopic mechanism can be switched. In this embodiment, the revolving body 241 has a hollow structure, and the lower part of the mast mechanism 230 has a column, so that the column can be penetrated into the revolving body 241 to realize the connection between the second revolving mechanism 240 and the mast mechanism 230.
In this embodiment, the lifting device further includes: a second bracket 251, the second swing mechanism 240 being provided on the second bracket 251; the first locking part 252 is provided on the second bracket 251, and the first locking part 252 can lock the second swing mechanism 240 to prevent the second swing mechanism 240 from rotating. The mast mechanism 230 may be supported by the second bracket 251, and the mast mechanism 230 may be locked against movement by the first locking portion 252. For example, when the lifting device is not in use, the lifting device can be moved to a horizontally placed position to reduce the height for convenient transportation. Moreover, the mast mechanism 230 can be rotated 90 degrees by the second swing mechanism 240, which can further improve the compactness of the workover rig, reduce the overall height, and reduce the occupied space. The first locking portion 252 may then be used to lock the mast mechanism 230 to improve reliability.
As shown in fig. 6, the first locking portion 252 includes a seventh driving portion 253 and a latch 254, the latch 254 is rotatably disposed on the second bracket 251, and the seventh driving portion 253 can drive the latch 254 to rotate. The second swing mechanism 240 can be blocked by rotating the blocking tongue 254 to prevent the second swing mechanism 240 from moving.
In this embodiment, the lifting device further includes: a second bracket 251, the mast mechanism 230 being rotatably provided on the second bracket 251 to change the working positions of the plurality of telescopic mechanisms; the second locking part 255, the second locking part 255 can lock the mast mechanism 230 on the second bracket 251 to fix the working positions of the plurality of telescopic mechanisms. By providing the second locking portion 255, the telescopic mechanism can be locked in a predetermined operating position after the telescopic mechanism is rotated to the operating position, so that the reliability of the apparatus can be improved.
In this embodiment, the second locking part 255 is disposed on the mast mechanism 230, and the second locking part 255 includes a hydraulic cylinder and a latch, and when the telescopic mechanism rotates to a predetermined working position, the hydraulic cylinder drives the latch to move, and the latch is inserted into a predetermined hole on the second bracket 251, thereby preventing the telescopic mechanism from rotating and realizing locking.
In this embodiment, the lifting device further comprises a lifting mechanism 260, wherein the lifting mechanism 260 is arranged on the mast mechanism 230, and wherein components and tools used in production can be transported by the lifting mechanism 260.
As shown in fig. 7, the telescopic portion 210 is provided along the longitudinal direction of the mast mechanism 230, and the mast mechanism 230 includes: a fixed mast 231; a telescopic mast 232 is telescopically provided in the fixed mast 231, and the telescopic mast 232 serves to guide the telescopic portion 210. The overall length of the mast mechanism 230 can be varied so as to guide the telescoping portion 210 through the telescoping mast 232 during operation, thereby improving the reliability of the device operation. When not in operation, the telescoping mast 232 can be retracted, reducing the footprint. A guide rail or channel is provided on the telescoping mast 232, and the telescoping portion 210 mates with the guide rail or channel to move along the telescoping mast 232.
As shown in fig. 8, the expansion and contraction section 210 includes: the hydraulic cylinder 211, the cylinder rod of the hydraulic cylinder 211 is fixed on the mast mechanism 230, and the cylinder barrel of the hydraulic cylinder 211 can slide along the length direction of the mast mechanism 230; a pulling pulley block 212 provided at an end of the cylinder tube of the hydraulic cylinder 211; the pulling wire 213 is wound around the pulling pulley block 212 and connected to the gripping portion 220, and the pulling wire 213 is used to pull up the gripping portion 220. The gripping part 220 can be pulled upwards by pulling the pulling wire 213 through the extension of the hydraulic cylinder 211, so that the gripping part 220 pulls the oil pipe upwards.
In the present embodiment, the telescoping portion 210 further includes: a pressing pulley block 214 provided at an end of a cylinder rod of the hydraulic cylinder 211; a carriage 215 slidably provided on the hydraulic cylinder 211, the carriage 215 being connected to the grip portion 220 to guide the grip portion 220; a push-down wire rope 216 is wound around the push-down pulley block 214 and connected to the carriage 215, and the push-down wire rope 216 is used to pull down the grasping portion 220. The arrangement is such that retraction of the hydraulic cylinder 211 causes the hold-down wire 216 to pull the gripping portion 220 downwardly, thereby causing the gripping portion 220 to pull the tubing downwardly to lower the tubing into the well. This allows a belt pressure effect.
As shown in fig. 4 and 9, the lifting device can be rotated to a vertical position in an operative state and to a horizontal position in an inoperative state. The oil pipe can be used for taking and placing the oil pipe in the vertical position, the occupied space can be reduced in the horizontal position, and the transportation is convenient. In this embodiment, the second bracket 251 is hinged to the supporting mechanism 110, and the lifting device further includes a sixth driving part 140. As shown in fig. 3, one end of the sixth driving part 140 is hinged to the vertical moving mechanism 120, and the other end of the sixth driving part 140 is hinged to the second bracket 251, so that the second bracket 251 can be driven to rotate by the extension and retraction of the sixth driving part 140, thereby moving the lifting device as a whole to a vertical position in an operating state and a horizontal position in a non-operating state.
As shown in fig. 10 to 13, the well servicing equipment further includes a transfer device disposed on the transport vehicle 500, the transfer device including: a gripping mechanism 310 for gripping a material; the swinging mechanism 320 is arranged on the clamping mechanism 310, and the swinging mechanism 320 is used for driving the clamping mechanism 310 to swing; and a lifting mechanism 330, the swing mechanism 320 being provided on the lifting mechanism 330, the lifting mechanism 330 being for lifting and lowering the swing mechanism 320.
By providing the gripping mechanism 310, the swing mechanism 320 and the lifting mechanism 330 in the transfer device, the gripping mechanism 310 can be moved to a desired position by the cooperation of the swing mechanism 320 and the lifting mechanism 330 during use to grip and transfer tubing or other materials by the gripping mechanism 310. The automatic transfer of the materials can be realized through the transfer device, so that the labor intensity can be reduced, the production efficiency can be improved, and the materials can be accurately and conveniently clamped and transferred through the cooperation of the mechanisms. Through the cooperation of transfer device and elevating gear, can realize the continuous follow oil well to take out and deposit or take in succession and go into the oil well to oil pipe, reduce intensity of labour, improve production efficiency.
In the present embodiment, the swing mechanism 320 includes: the swing arm 321, the clamping mechanism 310 is arranged at one end of the swing arm 321; the third rotation mechanism 322 is disposed on the lifting mechanism 330, and the third rotation mechanism 322 is used for driving the swing arm 321 to swing. In this way, the third rotation mechanism 322 can drive the swing arm 321 to rotate so as to change the position of the clamping mechanism 310, thereby clamping or placing the oil pipe.
Specifically, the third swing mechanism 322 includes: the other end of the swing arm 321 is connected with the turbine; and the worm is used for driving the turbine to rotate so as to drive the swing arm 321 to swing. Thus, the worm drives the turbine to rotate, and the swing arm 321 is driven to swing. The structure is reliable in transmission and compact in structure.
In this embodiment, the gripping mechanism 310 is hinged to the swing arm 321, and the swing mechanism 320 further includes: the third driving portion 323 is disposed on the swing arm 321, and the third driving portion 323 is configured to drive the gripping mechanism 310 to rotate on the swing arm 321. The gripping mechanism 310 may be rotated to a position corresponding to the oil pipe or an angle corresponding to the placement position by the third driving part 323 in order to grip or prevent the oil pipe.
As shown in fig. 10, the gripping mechanism 310 includes: a second link 311 provided on the swing mechanism 320; the plurality of clamps 312, the plurality of clamps 312 are arranged on the second connecting frame 311 side by side to clamp materials together. By providing a plurality of clamps 312, reliability and stability in clamping the riser can be improved.
In the present embodiment, the extending direction of the second connecting frame 311 is perpendicular to the extending direction of the swinging mechanism 320, and the extending direction of the swinging mechanism 320 is perpendicular to the extending direction of the lifting mechanism 330. This facilitates changing the position of the gripping mechanism 310 in a spatial position to facilitate gripping and removal and release of tubing.
As shown in fig. 12 and 13, the gripping mechanism 310 includes a clamp 312, the clamp 312 includes a jaw frame 313, a first jaw 314, and a second jaw 315, the first jaw 314 and the second jaw 315 are each hinged to the jaw frame 313, and an opening between the first jaw 314 and the second jaw 315 is adjustable in size to grip or release a material. This allows the tubing to be gripped or released by the engagement of the first jaw 314 and the second jaw 315. In this embodiment, first jaw 314 and second jaw 315 may be driven to move by hydraulic cylinders.
Further, the clamp 312 further includes: a third jaw 316 and a fourth jaw 317, the third jaw 316 and the fourth jaw 317 each being hinged to the jaw frame 313; the first clamping jaw 314 is connected with the third clamping jaw 316 through a third connecting rod to drive the third clamping jaw 316 to rotate, and the second clamping jaw 315 is connected with the fourth clamping jaw 317 through a fourth connecting rod 318 to drive the fourth clamping jaw 317 to rotate; the areas between the first jaw 314, the second jaw 315, the third jaw 316 and the fourth jaw 317 form a gripping space for gripping material, the size of which is adjustable for gripping or releasing material. This allows the tubing to be gripped or released by the co-engagement of the first jaw 314, the second jaw 315, the third jaw 316 and the fourth jaw 317, which provides greater stability and reliability in gripping the tubing.
As shown in fig. 10, the lifting mechanism 330 includes: the lifting arm 331, the swing mechanism 320 is arranged at one end of the lifting arm 331, and the lifting arm 331 can move to lift or lower the swing mechanism 320; and the other end of the lifting arm 331 is connected with the mounting seat 332. This allows the gripping mechanism 310 to be raised or lowered by movement of the lifting arm 331.
In this embodiment, the mounting base 332 is rotatably disposed on the transporter 500, so as to change the overall position of the transfer device, thereby realizing the transfer of the oil pipe.
In this embodiment, the other end of the lifting arm 331 is hinged to the mounting base 332, and the lifting mechanism 330 further includes: the fourth driving part 333, one end of the fourth driving part 333 is hinged with the mounting seat 332, the other end of the fourth driving part 333 is hinged with the lifting arm 331, and the fourth driving part 333 is used for driving the lifting arm 331 to swing. Specifically, the fourth driving part 333 is a hydraulic cylinder, and the swing of the lifting arm 331 is realized by the extension and contraction of the hydraulic cylinder.
In this embodiment, the transfer device further comprises a hydraulic system and an electronic control system. The hydraulic system comprises a valve group, a hydraulic motor, a hydraulic pipeline and other parts, and all parts of the hydraulic system are connected through the hydraulic pipeline. The electric control system comprises a controller, a lifting arm angle sensor, a third slewing mechanism slewing detection encoder, a swing arm oil cylinder (third driving part) length sensor and a clamping jaw driving oil cylinder pressure sensor.
In the transportation process of the well repairing equipment, the lifting arm is in a horizontal state, the swing arm is in a vertical state, and the opening of the clamp faces to the side. All outer contours of the transfer device are in the whole transport vehicle, so that the whole transport is convenient.
An example of the operation of the transfer device is described below. Before the workover rig is constructed in an oilfield site, the action of a hydraulic system is controlled through an electric control system, a cylinder rod of a lifting cylinder (a fourth driving part) is driven to extend, a lifting arm is lifted to be in a vertical state, and the axial direction of the lifting arm is parallel to the axial direction of an oil pipe; the third rotation mechanism rotates to drive the swing arm to rotate, the swing arm oil cylinder is driven to stretch out and draw back until the center line of the opening of the clamp is aligned with the center line of the oil pipe of the oil well, and the electric control system records the initial position of the oil pipe through each sensor of the detection unit. Then the action of the hydraulic system is controlled through the electric control system, the cylinder rod of the lifting oil cylinder is driven to retract, the lifting arm is lifted to be in a horizontal state, and the axial direction of the lifting arm is parallel to a platform for placing the oil pipe; the third rotation mechanism is driven to rotate to drive the swing arm to swing outwards, the swing arm oil cylinder is driven to stretch out and draw back, so that the opening of the clamp faces downwards, and the electric control system records the end position of the oil pipe through each sensor of the detection unit.
Through this transfer device, can realize the transposition of oil pipe from one spatial position to another spatial position through full-automatic mode. When the technical scheme is applied, the auxiliary disassembly and assembly of the mechanical arm and the complicated centering adjustment operation of the oil pipe are not needed by the crane on the construction site. The transfer device is integrally transported along with the whole machine of other devices, so that the work efficiency of the well repairing operation for transferring is greatly improved, and the safety performance of site construction is improved. The transfer device in workover construction can be in a full-automatic operation state, an operator can monitor equipment in a cab, and unmanned operation is realized near a wellhead.
In this embodiment, the chassis running engine of the transport vehicle 500 can switch the two-way power through the gearbox device, one power is used for running of the vehicle, and the other power is used for driving the transfer case device; the transfer case device is provided with a hydraulic oil pump which converts mechanical energy into hydraulic energy for movement of various devices mounted on the transporter 500.
According to the invention, through the arrangement of the technical scheme, the amplitude-variable landing gear (wellhead centering device) has 3 degrees of freedom, has the functions of horizontal rotation, lifting, horizontal translation and the like of a mechanism, and has the function of accurately positioning a wellhead. The full-automatic double-station hydraulic lifting device (lifting device) is provided with two sets of lifting and lowering mechanisms (telescopic mechanisms), and the two sets of lifting and lowering mechanisms are provided with the function of performing station switching so as to realize simultaneous lifting (lifting and lowering) and transferring of the oil pipe. The full-automatic wellhead blowout preventer has an automatic passing function of an oil pipe clamp by detecting the diameter of the pipe clamp and combining with the position detection of a full-automatic double-station hydraulic lifting device; the full-automatic double-station hydraulic lifting device can realize the vertical lifting function of the oil pipe; the full-automatic double-station hydraulic lifting device has a horizontal rotation function; the oil pipe transfer device has an oil pipe clamping function, a horizontal rotation function and a vertical tipping function.
When the blowout preventer is in a site construction state, the amplitude landing gear realizes the accurate centering of the blowout preventer and the wellhead device by adjusting the height, the front and back positions and the left and right positions of the mast mechanism; the mast mechanism of the full-automatic double-station hydraulic lifting device is in a vertical state, the telescopic mast is in an extending state, and the transport vehicle is connected to the ground of a construction site through a guy rope so as to stabilize the machine body. When the oil pipe is lifted and lowered, the chassis engine drives the hydraulic oil pump through the gearbox and the transfer case to convert mechanical energy into hydraulic energy, and the hydraulic energy drives the oil pipe clamping device (grabbing part) to clamp the oil pipe and drives the lifting oil cylinder (hydraulic cylinder) to realize the up-and-down movement of the oil pipe clamping device, so that the lifting and lowering operation of the oil pipe is realized. The hydraulic power drives the full-automatic double-station hydraulic lifting device to rotate and lock and position, so that the switching of lifting stations is realized, and the lifting oil pipe and the conveying oil pipe are synchronously carried out. The oil pipe conveying station lowers the oil pipe to the connecting pipe position of the oil pipe transferring device, conveys the oil pipe to the oil pipe transferring device, clamps the oil pipe by the oil pipe transferring device, swings out the oil pipe, and then horizontally places the oil pipe. Through the operation, the full-automatic and efficient lifting operation of the oil pipe can be realized. After the pipe lifting process is finished, the oil pipe is transferred to vehicle-mounted automatic pipe arranging equipment or other pipe arranging equipment. Before the pipe discharging process, the oil pipe is firstly transferred from the vehicle-mounted automatic pipe arranging equipment or other pipe arranging equipment to the oil pipe transferring device.
The full-automatic double-station hydraulic lifting device, the amplitude-variable landing gear, the driver sitting room, the full-automatic wellhead blowout preventer device and the transport vehicle chassis are combined together in a mechanical, hydraulic and electric mode, and the automatic program control machine can realize the operations of lifting and lowering oil pipes of the full-automatic double-station hydraulic lifting device, automatically passing through tool accessories and the like of the full-automatic wellhead blowout preventer. When the invention is applied, on-site staff is only two, after the equipment is switched to a full-automatic operation state, the operator can carry out equipment safety monitoring in a driller room, and when the equipment is transferred, the automatic transfer can be realized without intervention of a crane and other transfer vehicles. The application of the invention can reduce the number of workers in the well site, reduce the labor intensity of the workers and change the working environment quality, and the efficiency of the equipment under-pressure well repairing operation can be improved by about 50 percent; the equipment transfer efficiency can be improved by about 100%, and the economy and the production efficiency of the pressurized workover operation are improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Claims (14)
1. A well servicing rig comprising a transport vehicle (500) and a well head centering device arranged on the transport vehicle (500), the well head centering device being for centering an apparatus on a well head, characterized in that the well head centering device comprises:
-a support mechanism (110) for connecting and supporting the apparatus;
the supporting mechanism (110) is arranged on the vertical moving mechanism (120), and the vertical moving mechanism (120) is used for driving the equipment to move along a vertical plane;
the horizontal moving mechanism (130), the vertical moving mechanism (120) is arranged on the horizontal moving mechanism (130), and the vertical moving mechanism (120) is used for driving the equipment to move along the horizontal plane;
the vertical movement mechanism (120) includes a linkage mechanism including: a first mounting frame (121) provided on the horizontal movement mechanism (130); a second mounting frame (122), the support mechanism (110) being disposed on the second mounting frame (122); the two ends of the first connecting rod (123) are respectively hinged with the first mounting frame (121) and the second mounting frame (122), and the two ends of the second connecting rod (124) are respectively hinged with the first mounting frame (121) and the second mounting frame (122); the first mounting frame (121), the second mounting frame (122), the first connecting rod (123) and the second connecting rod (124) form a parallelogram mechanism;
The vertical movement mechanism (120) further includes: the first driving part (125), one end of the first driving part (125) is hinged with the first mounting frame (121), the other end of the first driving part (125) is hinged with the first connecting rod (123), and the first driving part (125) can stretch to drive the first connecting rod (123) to swing;
the horizontal movement mechanism (130) includes: the first rotary mechanism is used for driving the vertical moving mechanism (120) to rotate along a horizontal plane;
the support mechanism (110) includes: a first bracket (111) connected to the vertical movement mechanism (120); a first connection frame (112) movably arranged on the first bracket (111), wherein the first connection frame (112) is used for connecting the equipment; the second driving part (113) is arranged on the first bracket (111), and the second driving part (113) is used for driving the first connecting frame (112) to ascend or descend in the vertical direction;
the first bracket (111) is provided with a guide groove along the vertical direction, the first connecting frame (112) is provided with a roller (114), and the roller (114) can roll in the guide groove to guide the first connecting frame (112);
The supporting mechanism (110) further comprises a connecting seat (115), the connecting seat (115) is arranged on the first connecting frame (112), and the connecting seat (115) is used for being detachably connected with equipment;
the support mechanism (110) further comprises: the supporting leg (116) is arranged below the first bracket (111), the supporting leg (116) can stretch and retract along the vertical direction, and the supporting leg (116) is used for being supported on the ground;
the workover rig further includes a lifting device movably disposed on a support mechanism (110) of the wellhead centering device, the lifting device including: the telescopic mechanism comprises a telescopic part (210) and a grabbing part (220) for grabbing materials, the grabbing part (220) is connected with the telescopic part (210), and the telescopic part (210) can stretch to drive the grabbing part (220) to move; a mast mechanism (230) for supporting the telescopic mechanism, the mast mechanism (230) being vertically settable;
the well servicing equipment further comprises a transfer device arranged on the transport vehicle (500), the transfer device comprising: a gripping mechanism (310) for gripping a material; the clamping mechanism (310) is arranged on the swinging mechanism (320), and the swinging mechanism (320) is used for driving the clamping mechanism (310) to swing; and a lifting mechanism (330), wherein the swing mechanism (320) is arranged on the lifting mechanism (330), and the lifting mechanism (330) is used for lifting and descending the swing mechanism (320).
2. The well servicing rig of claim 1, wherein the telescoping mechanism is a plurality of the telescoping mechanisms being spaced apart on the mast mechanism (230), the telescoping mechanisms being capable of lifting material separately, the lifting device further comprising:
the mast mechanism (230) is arranged on the second slewing mechanism (240), and the second slewing mechanism (240) can drive the mast mechanism (230) to rotate so as to change the working positions of a plurality of telescopic mechanisms.
3. The well servicing rig according to claim 2, wherein there are two telescopic mechanisms, two telescopic mechanisms being arranged on both sides of the mast mechanism (230) in the length direction of the mast mechanism (230), the second slewing mechanism (240) being rotatable 180 degrees to exchange the working positions of the two telescopic mechanisms.
4. The well servicing rig of claim 2, wherein the lifting device further comprises:
a second bracket (251), wherein the second slewing mechanism (240) is arranged on the second bracket (251);
and a first locking part (252) arranged on the second bracket (251), wherein the first locking part (252) can lock the second slewing mechanism (240) so as to prevent the second slewing mechanism (240) from rotating.
5. The well servicing rig of claim 2, wherein the lifting device further comprises:
a second carriage (251), the mast mechanism (230) being rotatably provided on the second carriage (251) to change the operating positions of a plurality of the telescopic mechanisms;
and a second locking part (255), wherein the second locking part (255) can lock the mast mechanism (230) on the second bracket (251) so as to fix the working positions of a plurality of telescopic mechanisms.
6. The well servicing rig according to claim 1, wherein the telescoping section (210) is arranged along a length direction of the mast mechanism (230), the mast mechanism (230) comprising:
a fixed mast (231);
and a telescopic mast (232) telescopically arranged in the fixed mast (231), wherein the telescopic mast (232) is used for guiding the telescopic part (210).
7. Workover rig according to claim 1, wherein the telescoping section (210) comprises:
a hydraulic cylinder (211), wherein a cylinder rod of the hydraulic cylinder (211) is fixed on the mast mechanism (230), and a cylinder barrel of the hydraulic cylinder (211) can slide along the length direction of the mast mechanism (230);
A pulling pulley block (212) arranged at the end part of the cylinder barrel of the hydraulic cylinder (211);
and the lifting steel wire rope (213) is wound on the lifting pulley block (212) and is connected with the grabbing part (220), and the lifting steel wire rope (213) is used for pulling up the grabbing part (220).
8. The well servicing equipment of claim 7, wherein the telescoping section (210) further comprises:
a pressing pulley block (214) arranged at the end part of a cylinder rod of the hydraulic cylinder (211);
a carriage (215) slidably provided on the hydraulic cylinder (211), the carriage (215) being connected to the grip portion (220) to guide the grip portion (220);
and a pushing down steel wire rope (216) wound on the pushing down pulley block (214) and connected with the carriage (215), wherein the pushing down steel wire rope (216) is used for pushing down the grabbing part (220).
9. The well servicing rig of claim 1, wherein the swing mechanism (320) comprises:
the clamping mechanism (310) is arranged at one end of the swing arm (321);
and the third rotation mechanism (322) is arranged on the lifting mechanism (330), and the third rotation mechanism (322) is used for driving the swing arm (321) to swing.
10. The well servicing rig of claim 9, wherein the gripping mechanism (310) is hinged with the swing arm (321), the swing mechanism (320) further comprising:
the third driving part (323) is arranged on the swing arm (321), and the third driving part (323) is used for driving the clamping mechanism (310) to rotate on the swing arm (321).
11. The well servicing equipment of claim 1, wherein the gripping mechanism (310) comprises:
a second link (311) provided on the swing mechanism (320);
the plurality of clamps (312) are arranged on the second connecting frame (311) side by side to clamp the materials together.
12. The well servicing rig of claim 1, wherein the gripping mechanism (310) comprises a clamp (312), the clamp (312) comprising a jaw frame (313), a first jaw (314) and a second jaw (315), the first jaw (314) and the second jaw (315) each being hinged to the jaw frame (313), an opening between the first jaw (314) and the second jaw (315) being adjustable in size to grip or release the material.
13. The well servicing equipment of claim 12, wherein the clamp (312) further comprises:
-a third jaw (316) and a fourth jaw (317), both the third jaw (316) and the fourth jaw (317) being hinged on the jaw frame (313);
wherein the first clamping jaw (314) is connected with the third clamping jaw (316) through a third connecting rod to drive the third clamping jaw (316) to rotate, and the second clamping jaw (315) is connected with the fourth clamping jaw (317) through a fourth connecting rod (318) to drive the fourth clamping jaw (317) to rotate;
the areas between the first clamping jaw (314), the second clamping jaw (315), the third clamping jaw (316) and the fourth clamping jaw (317) form a clamping space for clamping the material, and the size of the clamping space can be adjusted to clamp or release the material.
14. The well servicing rig of claim 1, wherein the lifting mechanism (330) comprises:
a lifting arm (331), wherein the swing mechanism (320) is arranged at one end of the lifting arm (331), and the lifting arm (331) can move to lift or lower the swing mechanism (320);
And the other end of the lifting arm (331) is connected with the mounting seat (332).
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| CN201811126761.6A CN109138897B (en) | 2018-09-26 | 2018-09-26 | Well head centering device and well repair equipment with same |
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| CN201811126761.6A CN109138897B (en) | 2018-09-26 | 2018-09-26 | Well head centering device and well repair equipment with same |
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| CN109138897B true CN109138897B (en) | 2023-10-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110130837B (en) * | 2019-06-18 | 2023-12-22 | 李才训 | Vehicle-mounted wellhead operation automation device |
| CN110685617A (en) * | 2019-11-05 | 2020-01-14 | 胜利油田胜机石油装备有限公司 | Oil field well repairing operation device |
| CN111502564B (en) * | 2020-05-25 | 2022-10-25 | 胜利油田胜机石油装备有限公司 | Multi-direction pipe pusher and workover rig |
| CN113530475B (en) * | 2021-07-16 | 2024-02-23 | 无锡智瀚智能机器技术有限公司 | Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig |
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