CN214247310U - Workover downhole pipe rod coupling detection positioning device - Google Patents
Workover downhole pipe rod coupling detection positioning device Download PDFInfo
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- CN214247310U CN214247310U CN202021986471.1U CN202021986471U CN214247310U CN 214247310 U CN214247310 U CN 214247310U CN 202021986471 U CN202021986471 U CN 202021986471U CN 214247310 U CN214247310 U CN 214247310U
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- well
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Abstract
The invention discloses a detection and positioning device for a pipe rod coupling under a well workover well, which is used in the petroleum industry. As long as the winding wire retraction amount is provided, intelligent control of the traveling block hook can be realized through processing of an intelligent well repairing system program, the labor intensity of operators is greatly reduced, equipment and devices installed at a wellhead are protected, and adverse consequences and economic loss caused by forced tripping of a pipe rod coupling are avoided. The invention has reasonable design, simple structure and low manufacturing cost, the provided pipe coupling has high passing information accuracy, solves the problem of intelligent well repair which is puzzled for a long time, has obvious use effect and can obtain obvious economic and social benefits.
Description
Technical Field
The invention relates to an auxiliary device for a detection device of an underground rod column and an underground pipe column in a workover well in the petroleum industry, in particular to a detection and positioning device for an underground pipe rod coupling in workover.
Background
In the automatic well repairing process, because each sucker rod or each oil pipe in the well has different lengths, when the oil pipe or the sucker rod is put in, the coupling is arranged above the well mouth, and the traveling block hook can be directly positioned; however, when the tubing or the sucker rod is pulled out, because the coupling of the tubing or the sucker rod is in the well, the driller cannot see the position of the coupling of the tubing or the sucker rod, and the driller needs to predict the time for pulling the coupling of the tubing or the sucker rod out of the well mouth according to field experience, and the driller must tightly stare the well mouth all the time, so that the intelligent control of the traveling block hook cannot be realized. The inability to achieve intelligent control of the traveling block hook has been an obstacle to the development of intelligent well workover.
In the construction process of workover operation of the oil-water gas well with pressure, in the process of pipe rod pulling, when a coupling approaches to a lower half-seal blowout preventer group, two half-seal blowout preventers are generally arranged, an upper half-seal blowout preventer is required to be closed firstly, then a lower half-seal blowout preventer is opened, the coupling passes through the lower half-seal blowout preventer and is pulled to a position between the upper half-seal blowout preventer and the lower half-seal blowout preventer, then the lower half-seal blowout preventer is closed, the upper half-seal blowout preventer is opened, and the pipe rod is pulled out with pressure. If the pipe rod coupling scrapes and touches the sealing rubber core inside the blowout preventer in the construction process, the rubber core can be seriously damaged, the service life of the blowout preventer is influenced, and even serious accidents such as blowout and the like can be caused; the process of running tubing and sucker rods is also as described above. The accurate positioning of the pipe rod coupling also prevents the automatic and intelligent development of workover operation construction of the oil-water gas well with pressure.
Accurate determination of the location of tubing and tubing collar is important for workover operations.
At present, the devices for detecting the position of a pipe coupling are generally mechanical type, ultrasonic type and electromagnetic type. The mechanical type is mostly roller contact type, for example: the patent technology of patent No. 201010234477.8 is based on the principle of measuring and calculating the diameter difference of a pipe rod coupling relative to a body, and the mechanical pipe rod coupling detection device has high centering requirement on the pipe rod coupling and a complex structure. The ultrasonic and electromagnetic device for detecting the coupling position of the pipe rod can detect the coupling position only by comparing and analyzing a large amount of intermediate equipment and instruments, and the detection accuracy is greatly influenced by the conditions in the well.
Disclosure of Invention
The invention aims to provide a device for detecting and positioning a pipe rod coupling in a well workover well, which solves the problems of complex detection structure, more intermediate equipment and poor reliability in the prior art and provides a reliable passing instruction of the pipe rod coupling for intelligent well workover.
The technical scheme of the invention is realized by the following modes:
a detection and positioning device for a pipe rod coupling in a well repairing operation well is provided with a shell and an elastic body, wherein the elastic body wound with a winding wire is arranged in the shell, and the free end of the winding wire penetrates out of the shell wall of the shell and penetrates through a sealing element and a return spring arranged in a displacement conduction installation mechanism to be connected with a displacement output end.
The elastic body is I-shaped in overall shape, a winding wire clamping groove is formed in the middle of the elastic body, and the depth and the width of the winding wire clamping groove are consistent with the appearance and the number of winding turns of the winding wire.
The body of the elastic body below the winding wire clamping groove is provided with pressure balance holes, and the number of the pressure balance holes is set to be between 1 and 30.
And a pressure balance hole is not arranged in the body of the elastomer below the winding wire clamping groove.
The displacement conduction installation mechanism is provided with a sealing connection box and a spring installation sleeve, the sealing connection box is in threaded connection or is in plug-in connection with the spring installation sleeve, a sealing element is arranged in the sealing connection box, a reset spring and a displacement output end are installed in the spring installation sleeve, and the free end of the winding wire penetrates through the sealing element of the sealing connection box and the reset spring in the spring installation sleeve and then is connected with the displacement output end.
The shell is integrally I-shaped, two ends of the shell are provided with flanges, bolt holes are formed in the flanges at the two ends, a winding wire through hole or a sealed connecting box through hole is formed in the wall of the shell, or two winding wire through holes or two sealed connecting box through holes are formed in the wall of the shell.
The root part of the sealing connection box can penetrate into the sealing connection box through hole of the shell and then is welded with the shell outside the shell; the root of the sealing connection box can be directly welded with the outer position of the winding wire of the shell, which passes through the hole.
The winding wire is provided with two free ends or a free end, when the winding wire is provided with a free end which is connected with the joint of the detection device in the displacement output end, the other end of the winding wire is a fixed end which is fixed in the fixed lug plate, and the fixed lug plate is welded with the inner wall of the shell.
The fixed end of the winding wire can be bound or fixed in a fixing bolt in the fixing lug plate after being wound back from the fixing lug plate.
The inner diameter of the elastomer after being wound by the winding wire is smaller than the outer diameter of the pipe rod coupling; the number of winding turns of the winding wire in the elastic body is set to be between 1 and 30 turns.
The underground pipe rod coupling detection positioning device is arranged above a wellhead four-way joint of the operation well.
Compared with the prior art, the invention has the following remarkable using effects: the invention is used in the conventional well repair operation, is arranged at the position above the four-way of the well head, when a pipe rod coupling passes through the elastic body wound by the winding wire, the inner cavity tightened by the elastic body is expanded, the winding wire is pulled to retract, and the winding wire provides accurate passing information of the pipe rod coupling for the pipe rod coupling displacement detection device connected with the intelligent well repair system. As long as the retraction amount of the winding wire is provided, the intelligent control of the traveling block hook can be realized through the processing of the intelligent well repairing system program, and the labor intensity of operators is greatly reduced. The blowout preventer is used in the construction process of workover operation of the oil-water gas well with pressure, and can automatically control the opening and closing of the blowout preventer according to the passing information of the pipe rod coupling, thereby protecting equipment and devices installed at a wellhead and avoiding adverse consequences and economic loss caused by forced tripping of the pipe rod coupling.
The invention has reasonable design, simple structure and low manufacturing cost, provides a pipe rod coupling with high passing information accuracy, provides an effective positioning device for the pipe rod coupling for intelligent well workover, solves the problem of long-term troubling the intelligent well workover, has obvious use effect and can obtain obvious economic benefit and social benefit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
fig. 1 is a cross-sectional view of a front view of the present invention.
Fig. 2 is a cross-sectional view of the top view of fig. 1.
FIG. 3 is an enlarged view of a portion of the displacement conduction mounting mechanism of FIG. 2.
Fig. 4 is a schematic structural view of a second embodiment of the wrapping wire of the present invention.
FIG. 5 is a structural schematic diagram of a second embodiment of the welding of the displacement conduction mounting mechanism to the housing.
The device comprises a shell 1, an elastomer 2, a winding wire 3, a displacement conduction mounting mechanism 4, a return spring 5, a displacement output end 6, a pipe rod coupling 7, a fixed lug plate 8, a sealed connection box body 4-1, a sealing element 4-2 and a spring mounting sleeve 4-3.
Detailed Description
The drawings are for reference and illustration purposes only and are not intended to limit the scope of the present disclosure. The technical solution 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 is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the detection and positioning device for the pipe rod coupling in the well workover well is provided with a shell 1 and an elastic body 2, wherein the elastic body 2 wound with a winding wire 3 is arranged in the shell 1, and the free end of the winding wire 3 penetrates out of the wall of the shell 1, penetrates through a sealing element 4-2 arranged in a displacement conduction installation mechanism 4 and a return spring 5 and then is connected with a displacement output end 6. The pipe rod coupling 7 which is pulled out or put into the well passes through the elastic body 2 which is wound with the winding wire 3, when the pipe rod coupling 7 passes through the elastic body 2, the displacement output end 6 can be driven by the winding wire 3 to move in the displacement conduction installation mechanism 4, so that the pipe rod coupling displacement detection device receives a coupling position detection instruction of the pipe rod coupling detection positioning device in real time.
On the basis of the first embodiment, the invention also has the following embodiments:
the elastic body 2 is I-shaped in overall shape, a winding wire clamping groove is formed in the middle of the elastic body, and the depth and the width of the winding wire clamping groove are consistent with the appearance and the number of winding turns of the winding wire 3.
The body of the elastic body 2 below the winding wire clamping groove is provided with pressure balance holes, the number of the pressure balance holes is set to be 1-30, the elastic body 2 provided with the pressure balance holes can be used for pressure well repairing operation of the oil-water well, the pressure balance holes can balance the pressure in the well, and meanwhile, the pressure balance holes can also be used for minor repair operation of the oil-water well.
The body of the elastic body 2 below the winding wire clamping groove is not provided with a pressure balance hole, and the elastic body 2 without the pressure balance hole can only be used for minor repair operation of an oil-water well.
The displacement conduction installation mechanism 4 is provided with a sealing connection box 4-1 and a spring installation sleeve 4-3, the sealing connection box 4-1 is in threaded connection or insertion connection with the spring installation sleeve 4-3, a sealing element 4-2 is installed in the sealing connection box 4-1, a return spring 5 and a displacement output end 6 are installed in the spring installation sleeve 4-3, and the free end of the winding wire 3 penetrates through the sealing element 4-2 of the sealing connection box 4-1 and the return spring 5 in the spring installation sleeve 4-3 and then is connected with the displacement output end 6.
The shell 1 is integrally I-shaped, two ends of the shell are flanges, bolt holes are formed in the flanges at the two ends, a winding wire through hole or a sealed connection box through hole is formed in the shell wall of the shell 1, or two winding wire through holes or two sealed connection box through holes are formed in the shell wall of the shell 1.
The root of the sealed connection box 4-1 can penetrate through the sealed connection box through hole of the shell 1 and then is welded with the shell 1 outside the shell 1; the root of the sealed junction box 4-1 can be welded directly to the outer position of the wound wire through hole of the casing 1, see fig. 5.
The displacement output end 6 is provided with a detection device joint and a check ring, a winding wire through hole is formed in the check ring, the outer diameter of the check ring is smaller than the inner diameter of the spring mounting sleeve 4-3, the outer diameter of the detection device joint is larger than the inner diameter of the winding wire through hole in the check ring, the free end of the winding wire 3 penetrates through the check ring to be connected with the detection device joint in the displacement output end 6, and the detection device joint is connected with a pipe rod coupling displacement detection device in an intelligent well repair system through a cable. The displacement output end 6 can be driven by the winding wire 3 to move in the spring mounting sleeve 4-3 and can enable a pipe rod coupling displacement detection device in the intelligent well workover system to receive a passing signal of a pipe rod coupling in the well in real time.
The winding wire 3 is wound in the elastic body 2 in two ways, one way is that the winding wire 3 is provided with two free ends which respectively penetrate out of the two winding wire penetrating holes of the shell 1 or the sealed connection box 4-1 in the sealed connection box penetrating holes; one is that the winding wire 3 is provided with a free end, which is passed out from the sealed connection box 4-1 in only one winding wire passing hole or sealed connection box passing hole of the housing 1; accordingly, the housing 1 can also be provided with only one winding wire feed-through hole or sealed connection box feed-through hole, or with two winding wire feed-through holes or sealed connection box feed-through holes.
The winding wire 3 is provided with two free ends.
The following is an embodiment two of the winding wire 3, the winding wire 3 has a free end, and when the winding wire 3 has a free end connected to the connector of the detecting device in the displacement output end 6, the other end of the winding wire 3 is a fixed end fixed in the fixed ear plate 8, and the fixed ear plate 8 is welded to the inner wall of the housing 1.
The fixed end of the winding wire 3 can be wound back from the fixing lug plate 8 and then bound or fixed in a fixing bolt in the fixing lug plate 8.
The inner diameter of the elastic body 2 wound by the winding wire 3 is smaller than the outer diameter of the pipe rod coupling 7; the winding number of the winding wire 3 in the elastic body 2 is set between 1 and 30, and the winding number and the retraction amount output by the return spring 5 are in a linear relation, namely, the more the winding number of the winding wire 3 is, the larger the retraction amount of the return spring 5 is; the elastic body 2 can be made of elastic materials such as polyurethane rubber, nitrile rubber, silicon rubber, fluororubber, ethylene propylene diene monomer rubber, chloroprene rubber, butyl rubber, acrylic rubber, natural rubber, high polymer materials and the like, and the winding wire 3 can be made of materials such as steel wires, iron wires, aluminum wires, copper wires, capillary tubes, steel wire ropes, nylon wires, carbon fiber wires, PE wires and the like.
The underground pipe rod coupling detection positioning device can be arranged at a position above a wellhead four-way joint of an operation well. If the device is used for a minor repair operation well, the device can be directly connected with an upper flange of a wellhead four-way or an upper flange of any blowout preventer, and only one device is required to be connected; if the device is used for a pressurized operation well, two devices can be arranged in a blowout preventer stack above a well head, and one device is arranged below a bottom half-seal blowout preventer in the blowout preventer stack; another inventive device is installed between any two half blowout preventers in a blowout preventer stack, and 2 inventive devices are installed in total.
The free end of the winding wire 3 wound in the winding wire clamping groove of the elastic body 2 penetrates through the shell 1 and then is connected with a pipe rod coupling displacement detection device in an intelligent well repairing system through a return spring 5 and a displacement output end 6 in the displacement conduction installation mechanism 4. When the pipe rod coupling 7 passes through the elastic body 2, the expansion deformation of the elastic body 2 is caused, so that the winding wire 3 is stretched, the free end of the winding wire 3 drives the return spring 5 to retract together in the displacement conduction mounting mechanism 4 in the axial direction, and after the pipe rod coupling 7 passes through the elastic body 2, the winding wire 3 gradually returns to the initial state along with the gradual disappearance of the expansion deformation of the elastic body 2 again under the action of the return spring 5.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and inventive concept of the present invention should be included in the protection scope of the present invention. The scope of protection is therefore not limited to the description above.
Claims (12)
1. A detection and positioning device for a pipe rod coupling in a well workover well is characterized by being provided with a shell (1) and an elastic body (2), wherein the elastic body (2) wound with a winding wire (3) is installed in the shell (1), and the free end of the winding wire (3) penetrates out of the shell wall of the shell (1) and penetrates out of a sealing element (4-2) and a return spring (5) installed in a displacement conduction installation mechanism (4) and then is connected with a displacement output end (6).
2. The device for detecting and positioning the coupling of the pipe rod under the well workover well according to claim 1, wherein the elastomer (2) has an overall shape of an I shape, a winding wire clamping groove is formed in the middle of the elastomer, and the depth and the width of the winding wire clamping groove are consistent with the shape and the number of winding turns of the winding wire (3).
3. The device for detecting and positioning the coupling of the underground pipe rod for the workover operation as claimed in claim 2, wherein the body of the elastic body (2) below the winding wire clamping groove is provided with pressure balancing holes, and the number of the pressure balancing holes is set to be between 1 and 30.
4. The device for detecting and positioning the coupling of the underground pipe rod for the workover treatment according to claim 2, wherein the body of the elastic body (2) below the winding wire clamping groove is not provided with a pressure balance hole.
5. The device for detecting and positioning the coupling of the pipe rod under the well workover well according to claim 1, wherein the displacement conduction mounting mechanism (4) is provided with a sealing connection box (4-1) and a spring mounting sleeve (4-3), the sealing connection box (4-1) is in threaded connection or insertion connection with the spring mounting sleeve (4-3), a sealing element (4-2) is arranged in the sealing connection box (4-1), a return spring (5) and a displacement output end (6) are arranged in the spring mounting sleeve (4-3), and the free end of the winding wire (3) is connected with the displacement output end (6) after penetrating through the sealing element (4-2) of the sealing connection box (4-1) and the return spring (5) in the spring mounting sleeve (4-3).
6. A workover string collar detection and positioning device as claimed in claim 5, wherein the casing (1) is generally I-shaped, flanges are provided at both ends, bolt holes are provided in the flanges at both ends, a wound wire through hole or a sealed connection box through hole is provided in the wall of the casing (1), or two wound wire through holes or two sealed connection box through holes are provided in the wall of the casing (1).
7. The device for detecting and positioning the coupling of the pipe rod under the well workover well according to claim 6, wherein the root of the sealing connection box (4-1) can be welded with the shell (1) at the outside of the shell (1) after penetrating through the sealing connection box through hole of the shell (1); the root of the sealing connection box (4-1) can be directly welded with the outer position of the winding wire of the shell (1) through the hole.
8. The device for detecting and positioning the coupling of the pipe rod under the well workover treatment according to claim 5, wherein the displacement output end (6) is provided with a detection device joint and a check ring, a winding wire through hole is formed in the check ring, the outer diameter of the check ring is smaller than the inner diameter of the spring mounting sleeve (4-3), the outer diameter of the detection device joint is larger than the inner diameter of the winding wire through hole in the check ring, the free end of the winding wire (3) penetrates through the check ring to be connected with the detection device joint in the displacement output end (6), and the detection device joint is connected with the pipe rod coupling displacement detection device in the intelligent well workover system through a cable.
9. A device for detecting and positioning a coupling of a tubing string downhole in workover operations according to claim 6, wherein the winding wire (3) is provided with two free ends or one free end, the other end of the winding wire (3) is a fixed end which is fixed in the fixed lug plate (8) when the winding wire (3) is provided with one free end which is connected with the joint of the detection device in the displacement output end (6), and the fixed lug plate (8) is welded with the inner wall of the casing (1).
10. A workover downhole tubing string coupling detection and positioning device according to claim 9, wherein the fixed end of the winding wire (3) can be wound back from the fixing lug plate (8) and then bound or fixed in a fixing bolt in the fixing lug plate (8).
11. A workover downhole tubing coupling detection and positioning device according to claim 1 or 5, wherein the inner diameter of the elastic body (2) wound by the winding wire (3) is smaller than the outer diameter of the tubing coupling (7); the number of winding turns of the winding wire (3) in the elastic body (2) is set to be between 1 and 30.
12. The device for detecting and positioning the coupling of the down-hole pipe rod for the workover treatment according to claim 1 or 5, wherein the device for detecting and positioning the coupling of the down-hole pipe rod can be arranged at a position above a four-way joint of a wellhead of the workover treatment well.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021986471.1U CN214247310U (en) | 2020-09-12 | 2020-09-12 | Workover downhole pipe rod coupling detection positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021986471.1U CN214247310U (en) | 2020-09-12 | 2020-09-12 | Workover downhole pipe rod coupling detection positioning device |
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| CN214247310U true CN214247310U (en) | 2021-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060011A (en) * | 2021-11-01 | 2022-02-18 | 无锡智瀚智能机器技术有限公司 | Detection device and operation tool and workover rig comprising same |
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2020
- 2020-09-12 CN CN202021986471.1U patent/CN214247310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060011A (en) * | 2021-11-01 | 2022-02-18 | 无锡智瀚智能机器技术有限公司 | Detection device and operation tool and workover rig comprising same |
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