CN113530475B - Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig - Google Patents
Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig Download PDFInfo
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- CN113530475B CN113530475B CN202110805466.9A CN202110805466A CN113530475B CN 113530475 B CN113530475 B CN 113530475B CN 202110805466 A CN202110805466 A CN 202110805466A CN 113530475 B CN113530475 B CN 113530475B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 112
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
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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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a positioning mechanism for a workover rig, a positioning seat, an alignment mechanism comprising the positioning mechanism and the positioning seat, and the workover rig comprising the alignment mechanism. The positioning mechanism is arranged on the moving frame and comprises a positioning body and a positioning head protruding from the shoulder, the positioning body comprises a shoulder used for positioning, the positioning head comprises a lower positioning surface and two opposite side positioning surfaces, the positioning seat is arranged on wellhead equipment and comprises a seat body, a positioning groove is formed in the seat body, the positioning groove comprises a bottom positioning surface and two opposite side positioning surfaces, and the seat body further comprises an end face positioned at the inlet of the positioning groove. Through the matching of the locating surface and the shoulder of the locating mechanism with the locating surface and the end surface of the locating seat, the accurate and rapid alignment and the locating of the transporting frame relative to the wellhead equipment are realized, so that the automatic transporting of the oil pumping pipe/rod can be realized, the transporting process does not need to be manually carried out, the labor force is saved, the efficiency is improved, and the degree of automation of the workover rig is improved.
Description
Technical Field
The present invention relates to a positioning mechanism, a positioning seat, an alignment mechanism for use in a workover rig, and a workover rig comprising the positioning mechanism, the positioning seat, or the alignment mechanism. In particular, the present invention relates to a mechanism for rapidly positioning, aligning and installing a transport frame for transporting a sucker rod or a sucker tube in a workover rig with wellhead equipment provided at a wellhead, and a workover rig including the mechanism.
Background
In operation of a workover rig, it is necessary to first move the tubing and/or sucker rod into the locating or gripping device of the wellhead equipment during the lowering of the tubing and/or sucker rod downhole, in conventional workover rigs by manually dragging the tubing/rod, manually gripping one end thereof onto the elevator, and manually moving the other end thereof to the wellhead equipment and into alignment with the locating or gripping device after one end of the tubing/rod has been lifted by the elevator. During the process of pulling the tubing and/or sucker rod downhole, it is also necessary to manually remove the tubing and/or sucker rod from the elevator and from the wellhead equipment. For the manual operation mode, the labor intensity of operators is high, the operation environment is bad, the field operation environment has a certain risk, the safety of oil field operation is affected, and the operation efficiency is low.
Therefore, how to automatically remove the oil pumping pipe and/or the oil pumping rod from the wellhead device or automatically move the oil pumping rod or the oil pumping pipe to the wellhead device and align the oil pumping rod or the oil pumping rod with the positioning or clamping device of the wellhead device, so as to save labor and improve the working efficiency is a problem to be solved in the field.
The present invention is directed to solving the above-mentioned problems and/or other problems occurring in the prior art.
Disclosure of Invention
The invention provides a positioning mechanism for a workover rig comprising a transfer frame for automatically transferring a sucker rod or a sucker tube, the positioning mechanism being arranged on the transfer frame, wherein the positioning mechanism comprises a positioning body and a positioning head protruding from a shoulder, wherein the positioning body comprises a shoulder for positioning and the positioning head comprises a lower positioning surface and two opposite side positioning surfaces extending substantially perpendicular to the lower positioning surface.
The invention also provides a positioning seat for a workover rig, which is matched with a positioning mechanism, the workover rig comprises wellhead equipment arranged at a wellhead, the positioning seat is arranged on the wellhead equipment, wherein the positioning seat comprises a seat body, a positioning groove is formed in the seat body, the positioning groove comprises a bottom positioning surface and two opposite side positioning surfaces which extend basically perpendicular to the bottom positioning surface, and the seat body further comprises an end surface for positioning, wherein the end surface is positioned at an inlet of the positioning groove.
The invention further provides an alignment mechanism for a well servicing machine comprising a wellhead device arranged at the wellhead and a transfer frame for automatically transferring a sucker rod or sucker tube to and/or from the wellhead device, wherein the alignment mechanism comprises a positioning mechanism arranged on the transfer frame and a positioning seat arranged on the wellhead device, the positioning mechanism and the positioning seat cooperating to effect alignment of the transfer frame with the wellhead device.
The invention also provides a workover rig comprising a wellhead device arranged at the wellhead and a transfer frame for automatically transferring a sucker rod or a sucker tube to and/or from the wellhead device, the workover rig further comprising an alignment mechanism according to the above.
The invention has the advantages that the accurate alignment and positioning of the moving frame relative to the wellhead equipment are realized by matching the positioning surface and the shoulder of the positioning mechanism with the positioning surface and the end surface in the positioning seat, so that the moving frame can be ensured to be accurately clamped to the sucker tube/rod to be removed and/or the sucker tube/rod can be accurately moved into the positioning/clamping device of the wellhead equipment, the automatic moving of the sucker tube/rod is smoothly realized, the manual work is not needed in the moving process, the labor force is saved, the efficiency is improved, the automation degree of the workover rig is improved, and the invention has important significance for improving the working efficiency, and especially realizing the automation of the whole workover process. The positioning mechanism and the positioning seat can realize quick connection and alignment of the moving frame and wellhead equipment with a simple structure. And the arrangement of the slewing bearing assembly allows the lower locating surface of the locating head of the locating mechanism to still abut against the bottom locating surface of the locating seat even in the case of tilting of the transporting frame, i.e. accurate locating of the transporting frame relative to the wellhead equipment can still be achieved, and the swinging arm assembly of the locating mechanism is not twisted rigidly, resulting in stress in the locating mechanism.
Drawings
FIG. 1 illustrates a partial perspective view of a workover rig at an alignment mechanism employing a positioning mechanism, a positioning seat, and an alignment mechanism according to an exemplary embodiment of the present invention;
FIG. 2 illustrates a perspective view of a positioning mechanism according to an exemplary embodiment; and is also provided with
Fig. 3 shows a schematic perspective view of a positioning socket according to an exemplary embodiment.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings. The following description of embodiments of the present invention with reference to the accompanying drawings is intended to illustrate the general inventive concept and should not be taken as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It may be evident, however, that one or more embodiments may be practiced without these specific details. Furthermore, well-known structures and devices are not shown in the drawings in order to simplify the drawings.
Fig. 1 shows a partial perspective view of a well servicing rig at an alignment mechanism, to which a positioning mechanism, a positioning socket and an alignment mechanism according to an exemplary embodiment of the invention are applied, wherein only part of the structure of the well servicing rig in relation to the alignment mechanism is shown, while the rest of the well servicing rig, e.g. an elevator for lifting an oil suction pipe/rod, etc., is not shown.
In order to solve the problems of high labor intensity, severe working environment, poor safety and low working efficiency in the manual working process, the invention provides a workover rig, which can automatically realize the transportation of oil pumping pipes/oil pumping rods through a transportation frame 10. Specifically, during lowering of the tubing or sucker rod downhole, the transfer frame 10 grips the sucker rod or sucker rod (not shown) and automatically transfers it to the wellhead 20 and aligns the wellhead's positioning/gripping device for the tubing/rod, after which the upper end of the tubing/rod is gripped by the elevator, the transfer frame 10 releases the tubing/rod, completing the transfer of the tubing/rod, and the transfer frame 10 continues to move to grasp the next tubing/rod or to its original position. While during the tripping of a tubing or sucker rod from the well, after the tubing/rod is tripped from (i.e., disconnected from) the tubing/rod downhole, the transport frame 10 grips the tubing/rod and the elevator releases the tubing/rod, the transport frame 10 moves the drive tubing/rod away from the wellhead equipment and moves the tubing/rod, for example, into a tubing/rod library.
In order to achieve the above-described automated transportation process, it is necessary to ensure that the transportation frame 10 is positionally aligned with the wellhead equipment 20 when the equipment constituting the workover rig is initially installed and deployed at the wellhead, so that the clamping means for the pipe/rod in the transportation frame 10 can just dock with the positioning/clamping means and the position of the elevator at the wellhead equipment 20 when, for example, the swing arm of the transportation frame 10 is moved to the wellhead, otherwise the pipe/rod cannot be accurately clamped or the clamping means for the pipe/rod in the transportation frame 10 cannot be aligned with the positioning/clamping means and the elevator for the pipe/rod of the wellhead equipment 20 when, for example, the swing arm of the transportation frame 10 is swung to the wellhead, and the pipe/rod cannot be smoothly handed over to the positioning/clamping means and the elevator of the wellhead equipment 20. It will be seen that in order to achieve automatic pipe/rod transfer, it is necessary to ensure alignment and accurate relative positioning of the transfer frame 10 and wellhead 20 during initial spreading, installation of the workover rig. By way of example, the wellhead 20 may be configured as a modular wellhead module such that the wellhead module is positioned directly at the wellhead upon installation to reduce complex installation operations on portions of the wellhead during installation. However, those skilled in the art will appreciate that the wellhead 20 may not be configured to be modular.
To this end, the invention provides a positioning mechanism 1 provided on the transfer frame 10 and a positioning seat 2 provided on the wellhead device 20, both being used cooperatively to achieve alignment of the transfer frame 10 with said wellhead device 20.
As an exemplary embodiment, the invention provides a positioning mechanism for a workover rig comprising a transfer frame 10 for automatically transferring sucker rods or tubing, which positioning mechanism is arranged on the transfer frame 10, wherein the positioning mechanism 1 comprises a positioning body 12 and a positioning head 11, wherein the positioning body 12 comprises a shoulder 121 for positioning and the positioning head 11 comprises a lower positioning surface 111 and two opposite side positioning surfaces 112 extending substantially perpendicular to the lower positioning surface 111. The positioning and alignment of the transport frame 10 is achieved by the positioning means 1 provided on the transport frame 10, in particular the shoulders 121, the lower positioning surface 111 and the side positioning surfaces 112 thereof.
As an exemplary embodiment, the present invention provides a positioning seat for a workover rig comprising a wellhead device 20 arranged at a wellhead, the positioning seat being arranged on the wellhead device 20, wherein the positioning seat 2 comprises a seat body 21, a positioning slot being formed in the seat body 21, wherein the positioning slot comprises a bottom positioning surface 211 and two opposite side positioning surfaces 212 extending substantially perpendicular to the bottom positioning surface 211, the seat body further comprising an end surface 213 for positioning at an inlet of the positioning slot. In this example, the positioning and alignment of the wellhead 20 is achieved by positioning seats 2 provided on the wellhead 20, in particular positioning slots in its housing 21.
As an exemplary embodiment, the present invention provides an alignment mechanism for a well servicing machine comprising a wellhead device 20 arranged at a wellhead and a transfer frame 10 for automatically transferring a sucker rod or a sucker tube to the wellhead device 20 or for automatically removing a sucker rod or a sucker tube from the wellhead device 20, wherein the alignment mechanism comprises a positioning mechanism 1 provided on the transfer frame 10 and a positioning seat 2 provided on the wellhead device 20, the positioning mechanism 1 and the positioning seat 2 cooperating to achieve alignment and positioning of the transfer frame 10 with the wellhead device 20.
In the above example, in the aligned state of the transfer frame 10 and the wellhead 20, the positioning head 11 of the positioning mechanism 1 is inserted into the positioning groove of the positioning seat 2, wherein the lower positioning surface 111 of the positioning head 11 of the positioning mechanism 1 abuts against the bottom positioning surface 211 of the positioning groove of the positioning seat, and the two side positioning surfaces 112 of the positioning head 11 are adjacent to (may have a certain gap, for example a gap of 1mm between) or in contact with the two side positioning surfaces 212 of the positioning groove, and the shoulder 121 abuts against the end surface 213 of the seat 21. The abutment of the lower positioning surface 111 with the bottom positioning surface 211 thus effects a positioning of the positioning head 11 of the positioning mechanism in the downward direction in the positioning seat 20; and the two side positioning surfaces 112 of the positioning head 11 are limited by the two side positioning surfaces 212 of the positioning groove, positioning in the left-right direction in fig. 3 is achieved; the shoulder 121 abuts against the end face 213 of the seat body 21, thus again achieving positioning of the positioning mechanism 1 relative to the positioning seat 2 in the direction in which the positioning head 11 projects into the positioning groove of the positioning seat (in fig. 3, in the front-rear direction along the depth of the positioning groove). The alignment and positioning of the positioning mechanism 1 and the positioning seat 2 are realized, and the alignment and positioning of the transporting frame 10 and the wellhead equipment 20 are realized because the positioning mechanism is arranged on the transporting frame 10 and the positioning seat 2 is arranged on the wellhead equipment 20. In the installation of a workover rig, as an example, the wellhead 20 may be first installed at the wellhead to complete the positioning of the wellhead 20. The lifting and transporting frame is then moved so that the positioning mechanism 1 on the transporting frame finds the positioning seat 2 on the wellhead 20 and contacts or mates the positioning faces 111, 112, the shoulder 121 of the positioning mechanism 1 with the positioning faces 211, 212, the end face 213 in the positioning seat 2, thereby achieving an accurate alignment and positioning (in the horizontal direction) of the transporting frame 10 relative to the wellhead 20, so that the transporting frame 10 can ensure accurate clamping to the sucker rod for removal thereof and/or for moving the sucker rod into the positioning/clamping means of the wellhead 20, and an automatic transporting of the sucker rod is smoothly achieved. In particular, during the tripping out of a sucker rod, the gripping device for the pipe/rod in the transfer frame 10 can just dock with the positioning/gripping device at the wellhead equipment 20 and the position of the elevator when, for example, the swing arm of the transfer frame 10 is moved to the wellhead, thereby accurately gripping the pipe/rod and removing it. During lowering of the sucker rod, the gripping device for the pipe/rod in the transfer frame 10 brings the pipe/rod with it when, for example, it swings with the swing arm of the transfer frame 10 to the wellhead, it is possible to align the positioning/gripping device for the pipe/rod and the elevator of the wellhead equipment 20, thereby smoothly transferring the pipe/rod to the positioning/gripping device and the elevator of the wellhead equipment 20. Due to the fact that automatic transportation of the oil pumping pipe/rod is achieved, the process is not needed to be carried out manually, labor is saved, and efficiency is improved.
Illustratively, as shown in FIG. 2, the positioning mechanism further comprises two swing arm assemblies 13, each swing arm assembly 13 being pivotally connected to one side of the positioning body 12, wherein the swing arm assemblies 13 comprise a housing 131, a telescopic arm 132 at least partially received in the housing 131, and a grip 133 disposed at an end of the telescopic arm 132 and located outside the housing 131; correspondingly, the positioning seat 2 further comprises two fixing columns 22, and the two fixing columns 22 are respectively connected to the seat body 21 at one side of the seat body 21 through connecting plates. In the aligned condition of the transfer frame 10 with the wellhead 20, each grip 133 grips a corresponding fixed column 22 and each telescopic arm 132 is in the retracted condition of the housing 131, ensuring that the shoulder 121 abuts against the end face 213 of the seat 21 and the positioning mechanism 1 is connected with the positioning seat 2. In this example, the swing arm assembly 13 can be swung open manually so that it is ensured that the swing arm assembly 13 does not interfere with the fixed post 22 during movement of the positioning mechanism 1 towards the positioning seat 2 to extend the positioning head 11 into the positioning slot in the seat body 21. And after the positioning head 11 is inserted into the positioning groove and the lower positioning surface 111 of the positioning head abuts against the bottom positioning surface 211 of the positioning groove, the swinging arm assembly 13 is swung back manually, the gripper grips the centering cylinder of the positioning seat, and the driving device (e.g. hydraulic cylinder) for driving the telescopic arm 132 acts to retract the telescopic arm 132 relative to the housing 131, under the pulling of the telescopic arm 132, the positioning mechanism 1 moves further towards the positioning seat 2 to extend the positioning head 11 further into the positioning groove until the shoulder 121 of the positioning body 12 abuts against the end surface 213 of the seat body 21, positioning of the positioning mechanism 1 relative to the positioning seat 2 is completed, and the fixed connection of the positioning mechanism and the positioning seat 2 is realized by gripping the gripper of the swinging arm assembly 13 on the fixed column 22, so that the distance between the moving frame 10 and the wellhead device 20 is ensured.
During the placement of the transfer frame 10, alignment of the transfer frame 10 with the wellhead 20 is accomplished, whereas if the ground on which the transfer frame 10 falls, i.e., the mounting plane, is uneven, there is an angle between the mounting plane of the transfer frame 10 and the mounting plane of the wellhead 20. In order to enable accurate positioning of the positioning means 1 and the positioning seat 2 even in the presence of this angle, the pivoting support assembly 16 is provided in the example of the invention, in that the lower positioning surface 111 of the positioning head 11 of the positioning means 1 still abuts against the bottom positioning surface 211. As shown in fig. 2, the positioning mechanism 1 further includes a connection base 14 connected to the transport frame 10, a revolving body 15 connected to the connection base 14, and a slewing bearing assembly 16 for rotatably connecting the revolving body 15 to the positioning body 12. In this example, slewing bearing assembly 16 allows slewing body 15 connected to transport frame 10 to be able to rotate relative to the positioning body of positioning mechanism 1, so that even in the event of tilting of transport frame 10, lower positioning surface 111 of positioning head 11 is able to rest against bottom positioning surface 211, and does not rigidly twist the swing arm assembly of the positioning mechanism causing stresses in the positioning mechanism.
As shown in fig. 2, the slewing bearing assembly 16 may be coupled to the positioning body 12 at a first portion (not numbered, for example, by a web) and coupled to the slewing body at a second portion (e.g., by a web), the first and second portions being rotatable relative to each other, for example, by support of bearings.
In the workover rig, the connection seat 14 of the positioning mechanism 1 as an example is slidably connected to the transportation frame 10. I.e. the positioning mechanism 1 can be floatingly connected to the transfer frame 10, so that alignment and connection of the transfer frame 10 with wellhead installation can be achieved for wellhead installation equipment of different installation heights. As an example, the transport frame 10 includes two opposing guide rails; as shown in fig. 2, the connection holder 14 includes a first arm 141 and two second arms 142, the two second arms 142 are respectively connected to one end of the first arm 141, wherein both ends of each second arm 142 are respectively provided with a guide 143, and the guide 143 is slidably connected to a guide rail.
Further, as shown in fig. 3, the positioning seat 2 provided on the wellhead 20 further comprises a connection portion 23 for connection to the wellhead 20, wherein the connection portion 23 comprises a lateral connection 231 connected to the two fixed posts 22 respectively, and a sleeve 232, the sleeve 232 being connected to the lateral connection 231 and being sleeved on a guiding mechanism (not shown) of the wellhead 20, which passes through the sleeve and the lateral connection 231, so that the positioning seat can slide with respect to the wellhead 20.
In connection with the structure of the examples above, the following will describe, in a more specific embodiment, the process of docking alignment and positioning between the transport frame 10 and the wellhead 20 to better understand the structure and operation of the examples of the present invention:
(1) After the installation of the wellhead 20 is completed, the positioning seat 2 is slid to the lowermost position along the guide mechanism of the wellhead 20 due to gravity at this time, and thus the positioning seat 2 is already positioned. The transporting frame 10 is lifted, and the positioning mechanism 1 is located at the lowermost end position of the guide rail of the transporting frame due to gravity and can slide up and down along the guide rail.
(2) The swing arm assembly of the positioning mechanism 1 is manually swung out by a certain angle, and the hydraulic oil cylinder is operated to extend the grippers of the left swing arm assembly and the right swing arm assembly. The transfer frame is slowly lowered so that the positioning head 11 of the positioning mechanism 1 on it rides in the positioning groove in the positioning seat 2 of the wellhead 20, the transfer frame is lowered, but the positioning mechanism 1 is not lowered any more because its lower positioning surface 111 rests against the bottom positioning surface 211 of the positioning groove, but only slides with respect to the guide rail of the transfer frame 10. The transport frame descends until it contacts the ground.
(3) The left and right swing arm assemblies 13 are manually closed, and the fixed column 22 of the positioning seat is grasped by the grasping arms 133 of the swing arm assemblies. The hydraulic cylinder is operated to retract the grip 133, thereby pulling the positioning mechanism 1 to move towards the positioning body 2 until the shoulder 121 of the positioning body 12 of the positioning mechanism 1 abuts against the end face 213 of the seat body 21, thereby connecting the positioning mechanism 1 and the positioning seat 2, realizing the positioning of the transporting frame and the wellhead equipment in the horizontal direction, and ensuring the distance between the transporting frame 10 and the wellhead equipment 20.
(4) The inclined moving frame may be leveled by adjusting a height adjusting device (e.g., a hydraulic cylinder or an air cylinder) provided at a lower portion of the moving frame 10.
In order to simply and reliably connect the revolving body 15 to the connection base 14 and thus to the moving frame 10, there is also provided an exemplary structure in which the revolving body 15 includes a main body 151 and two connection arms 152 respectively connected to one side of the main body 151; and the coupling seats 14 are formed thereon with lugs 144 corresponding to the coupling arms, each coupling arm 152 being coupled to a corresponding lug 144. Preferably, as shown in fig. 2, each connecting arm 152 is shaped as a generally C-shaped piece, with four lugs 144 provided on the connecting seat 14, each end of the C-shaped piece being connected to a respective lug 144. Each link arm 152 may include two opposed link plates 1521 spaced apart a distance, with lugs 144 extending into the space between the two link plates 1521, and rotor 15 including pins 153, with lugs 144 connected to link plates 1521 by pins 153.
There is also provided in accordance with an exemplary embodiment of the present invention a workover rig including a wellhead equipment 20 arranged at a wellhead and a transfer frame 10 for automatically transferring sucker rods or tubing to the wellhead equipment 20 and/or for automatically removing sucker rods or tubing from the wellhead equipment 20, and further including an alignment mechanism as described in the examples above. The workover rig comprising the alignment mechanism can align the transportation frame 10 and the wellhead equipment 20 due to the characteristics of the alignment mechanism, so that the transportation frame can automatically realize the transportation of the oil pumping pipe/the workover rig in the operation process of the workover rig, the automation degree of the workover rig is improved, and the alignment mechanism has important significance for improving the working efficiency, and especially realizing the automation of the whole workover rig operation process. In view of the current situation that the automation degree in the field of workover rigs is very low, the application of the alignment mechanism in the field of workover rigs has significant innovative significance.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples disclosed herein be considered as exemplary only, with a true scope of the invention being indicated by the following claims and their equivalents.
Claims (19)
1. A positioning mechanism for a workover rig, the workover rig comprising a transportation frame (10) for automatically transporting a sucker rod or a sucker tube and a wellhead device (20) arranged at a wellhead, the positioning mechanism being provided on the transportation frame (10) and being adapted to cooperate with a positioning seat (2) provided on the wellhead device (20) to achieve alignment and positioning of the transportation frame (10) with the wellhead device (20), wherein the positioning mechanism (1) comprises:
a positioning body (12), wherein the positioning body (12) comprises a shoulder (121) for positioning;
a positioning head (11) protruding from the shoulder, wherein the positioning head (11) comprises a lower positioning surface (111) and two opposite side positioning surfaces (112) extending substantially perpendicular to the lower positioning surface (111);
the positioning mechanism further comprises at least one swing arm assembly (13) pivotally connected to the positioning body (12), wherein the swing arm assembly (13) comprises a housing (131), a telescopic arm (132) at least partially accommodated in the housing (131), and a grip (133) provided at an end of the telescopic arm (132) and located outside the housing (131).
2. The positioning mechanism of claim 1, wherein,
each swing arm assembly (13) further comprises drive means for driving extension and retraction of the telescopic arm (132) relative to the housing (131).
3. Positioning mechanism according to any of the claims 1-2, characterized in that,
the positioning mechanism (1) further comprises:
a connection seat (14) connected to the transport frame (10);
a rotator (15) connected to the connection base (14); and
a slewing bearing assembly (16) for rotatably connecting the slewing body (15) to the positioning body (12).
4. A positioning mechanism according to claim 3, wherein,
the connection base (14) is slidably connected to the transport frame (10).
5. The positioning mechanism according to claim 4, wherein,
the transport frame (10) comprises two opposing guide rails; and the connection base (14) comprises:
a first arm (141); and
two second arms (142) respectively connected to one ends of the first arms (141), wherein both ends of each second arm (142) are respectively provided with a guide (143), and the guide (143) is slidably connected to the guide rail.
6. A positioning mechanism according to claim 3, wherein said revolving body (15) comprises a main body (151) and two connecting arms (152) respectively connected to one side of said main body (151); and is also provided with
The connecting base (14) is provided with lugs (144) corresponding to the connecting arms, and the connecting arms (152) are respectively connected to the lugs (144).
7. The positioning mechanism according to claim 6, wherein each of said connecting arms (152) is shaped as a substantially C-shaped piece, four of said lugs (144) being provided on said connecting seat (14), each end of said C-shaped piece being connected to a respective lug (144).
8. The positioning mechanism of claim 7, wherein,
each of the link arms (152) includes two opposed link plates (1521) spaced apart from each other, the lugs (144) extending into a space between the link plates (1521), and the rotor (15) including pins by which the lugs (144) are connected to the link plates.
9. A positioning socket for a workover rig, the workover rig comprising a wellhead device (20) arranged at a wellhead and a transfer frame (10) for automatically transferring a sucker rod or a sucker tube, the positioning socket (2) being arranged on the wellhead device (20) and being adapted to cooperate with a positioning mechanism arranged on the transfer frame (10) to achieve alignment and positioning of the transfer frame (10) with the wellhead device (20), wherein the positioning socket (2) comprises:
-a seat (21), in which seat (21) a positioning slot is formed, wherein the positioning slot comprises a bottom positioning surface (211) and two opposite side positioning surfaces (212) extending substantially perpendicular to the bottom positioning surface (211), the seat further comprising an end surface (213) for positioning at the entrance of the positioning slot; the positioning seat (2) further comprises two fixing columns (22), and the two fixing columns (22) are respectively connected to the seat body (21) at one side of the seat body (21) through connecting plates.
10. The positioning socket of claim 9, further comprising a connection (23) for connecting to the wellhead apparatus (20), wherein the connection (23) comprises:
a transverse connector (231) connected to the two fixed posts (22) respectively; and
and the sleeve (232) is connected to the transverse connecting piece (231) and sleeved on a guide mechanism of the wellhead equipment (20) so that the positioning seat can slide relative to the wellhead equipment (20).
11. An alignment mechanism for a workover rig, wherein the workover rig comprises a wellhead device (20) arranged at a wellhead and a transfer frame (10) for automatically transferring sucker rods or tubes to the wellhead device (20) and/or for automatically removing sucker rods or tubes from the wellhead device (20), wherein the alignment mechanism comprises a positioning mechanism (1) arranged on the transfer frame (10) and a positioning seat (2) arranged on the wellhead device (20), the positioning mechanism (1) and the positioning seat (2) cooperating to enable alignment and positioning of the transfer frame (10) with the wellhead device (20);
wherein the positioning mechanism (1) comprises:
a positioning body (12), wherein the positioning body (12) comprises a shoulder (121) for positioning; and
a positioning head (11) protruding from the shoulder, wherein the positioning head (11) comprises a lower positioning surface (111) and two opposite side positioning surfaces (112) extending substantially perpendicular to the lower positioning surface (111);
the positioning seat (2) comprises a seat body (21), wherein a positioning groove is formed in the seat body (21), the positioning groove comprises a bottom positioning surface (211) and two opposite side positioning surfaces (212) which extend basically perpendicular to the bottom positioning surface (211), and the seat body (21) further comprises an end surface (213) for positioning, wherein the end surface is positioned at the inlet of the positioning groove;
wherein in the aligned state of the transfer frame (10) and the wellhead device (20), the positioning head (11) of the positioning mechanism (1) protrudes into the positioning groove of the positioning seat (2), wherein the lower positioning surface (111) is abutted against the bottom positioning surface (211), two side positioning surfaces (112) of the positioning head (11) are adjacent to or contact two side positioning surfaces (212) of the positioning groove, and the shoulder (121) is abutted against an end surface (213) of the seat body (21).
12. The alignment mechanism of claim 11,
the positioning mechanism further comprises two swing arm assemblies (13), each swing arm assembly (13) is respectively and pivotably connected to one side of the positioning body (12), wherein the swing arm assembly (13) comprises a shell (131), a telescopic arm (132) accommodated in the shell (131) and a grip (133) arranged at the end part of the telescopic arm (132) and positioned outside the shell (131); and is also provided with
The positioning seat (2) further comprises two fixing columns (22), and the two fixing columns (22) are respectively connected to the seat body (21) at one side of the seat body (21) through connecting plates;
wherein in the aligned condition of the transfer frame (10) and the wellhead device (20), each grip (133) grips a corresponding fixed column (22) and each telescopic arm (132) is in a retracted condition of the housing (131) to ensure that the shoulder (121) rests against an end face (213) of the housing (21) and the positioning mechanism (1) is connected with the positioning seat (2).
13. The alignment mechanism of any of claims 11-12,
the positioning mechanism (1) further comprises:
a connection seat (14) connected to the transport frame (10);
a rotator (15) connected to the connection base (14); and
a slewing bearing assembly (16) for rotatably connecting the slewing body (15) to the positioning body (12).
14. The alignment mechanism of claim 13,
the connection base (14) is slidably connected to the transport frame (10).
15. The alignment mechanism of claim 14,
the transport frame (10) comprises two opposing guide rails; and the connection base (14) comprises:
a first arm (141); and
two second arms (142) respectively connected to one ends of the first arms (141), wherein both ends of each second arm (142) are respectively provided with a guide (143), and the guide (143) is slidably connected to the guide rail.
16. The alignment mechanism according to claim 13, characterized in that the rotator (15) comprises a main body (151) and two connecting arms (152) respectively connected to one side of the main body (151); and is also provided with
The connection base (14) has lugs (144) formed thereon corresponding to the connection arms, each of the connection arms (152) being connected to the corresponding lug (144).
17. The alignment mechanism of claim 16, wherein each of said connecting arms (152) is shaped as a generally C-shaped member, four of said lugs (144) being provided on said connecting base (14), each end of said C-shaped member being connected to a respective lug (144).
18. An alignment mechanism for a workover rig comprising a locating mechanism as claimed in any one of claims 1 to 8 and a locating seat as claimed in any one of claims 9 to 10.
19. A workover rig, characterized in that it comprises a wellhead equipment (20) arranged at the wellhead and a transport frame (10) for automatically moving sucker rods or tubes to the wellhead equipment (20) and/or from the wellhead equipment (20), the rig further comprising an alignment mechanism according to any of claims 11-18.
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| CN202110805466.9A CN113530475B (en) | 2021-07-16 | 2021-07-16 | Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig |
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| CN202110805466.9A CN113530475B (en) | 2021-07-16 | 2021-07-16 | Positioning mechanism, positioning seat, alignment mechanism for workover rig and workover rig |
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| CN113530475B true CN113530475B (en) | 2024-02-23 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672168A (en) * | 2009-10-23 | 2010-03-17 | 大庆石油学院 | Workover operation mechanization system replacing well mouth manual operation |
| CN103939037A (en) * | 2014-03-26 | 2014-07-23 | 南阳二机石油装备(集团)有限公司 | Iron roughneck |
| CN104895515A (en) * | 2015-06-09 | 2015-09-09 | 湖南三一石油科技有限公司 | Petroleum drilling and production equipment, iron roughneck and clamp body |
| CN106948775A (en) * | 2017-05-24 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | A kind of rail mounted iron driller |
| CN206360650U (en) * | 2016-12-28 | 2017-07-28 | 山东科瑞机械制造有限公司 | A kind of inclined shaft workover rig wellhead alignment device |
| CN109138897A (en) * | 2018-09-26 | 2019-01-04 | 北京威力清矿山控制技术有限公司 | Well head centralising device and with its well workover equip |
| CN109779542A (en) * | 2019-03-14 | 2019-05-21 | 胜利油田胜机石油装备有限公司 | Hydraulic tongs |
| CN110424908A (en) * | 2019-09-03 | 2019-11-08 | 济南高维度智能科技有限公司 | Workover robot |
| CN111520088A (en) * | 2020-04-22 | 2020-08-11 | 山东瑞奥智能设备股份有限公司 | Vehicle-mounted small workover wellhead operation device and method |
| CN112267841A (en) * | 2020-10-26 | 2021-01-26 | 无锡智瀚能源科技装备与服务有限公司 | Automatic positioning device for sucker rod and workover rig comprising same |
| CN112983298A (en) * | 2021-04-28 | 2021-06-18 | 中国石油大学胜利学院 | Sucker rod mechanical minor repair operation integrated equipment and technology based on vehicle-mounted workover rig |
-
2021
- 2021-07-16 CN CN202110805466.9A patent/CN113530475B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672168A (en) * | 2009-10-23 | 2010-03-17 | 大庆石油学院 | Workover operation mechanization system replacing well mouth manual operation |
| CN103939037A (en) * | 2014-03-26 | 2014-07-23 | 南阳二机石油装备(集团)有限公司 | Iron roughneck |
| CN104895515A (en) * | 2015-06-09 | 2015-09-09 | 湖南三一石油科技有限公司 | Petroleum drilling and production equipment, iron roughneck and clamp body |
| CN206360650U (en) * | 2016-12-28 | 2017-07-28 | 山东科瑞机械制造有限公司 | A kind of inclined shaft workover rig wellhead alignment device |
| CN106948775A (en) * | 2017-05-24 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | A kind of rail mounted iron driller |
| CN109138897A (en) * | 2018-09-26 | 2019-01-04 | 北京威力清矿山控制技术有限公司 | Well head centralising device and with its well workover equip |
| CN109779542A (en) * | 2019-03-14 | 2019-05-21 | 胜利油田胜机石油装备有限公司 | Hydraulic tongs |
| CN110424908A (en) * | 2019-09-03 | 2019-11-08 | 济南高维度智能科技有限公司 | Workover robot |
| CN111520088A (en) * | 2020-04-22 | 2020-08-11 | 山东瑞奥智能设备股份有限公司 | Vehicle-mounted small workover wellhead operation device and method |
| CN112267841A (en) * | 2020-10-26 | 2021-01-26 | 无锡智瀚能源科技装备与服务有限公司 | Automatic positioning device for sucker rod and workover rig comprising same |
| CN112983298A (en) * | 2021-04-28 | 2021-06-18 | 中国石油大学胜利学院 | Sucker rod mechanical minor repair operation integrated equipment and technology based on vehicle-mounted workover rig |
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|---|---|
| CN113530475A (en) | 2021-10-22 |
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