CN210977368U - Shock jam releasing device - Google Patents
Shock jam releasing device Download PDFInfo
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- CN210977368U CN210977368U CN201921476039.5U CN201921476039U CN210977368U CN 210977368 U CN210977368 U CN 210977368U CN 201921476039 U CN201921476039 U CN 201921476039U CN 210977368 U CN210977368 U CN 210977368U
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- fishing rod
- rod
- connecting cylinder
- peripheral wall
- joint
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Abstract
The utility model discloses a jarring unfreezing device, jarring unfreezing device includes first salvage pole, second salvage pole, connecting cylinder and shearing pin, be equipped with first screw thread on the first end perisporium of first salvage pole, be equipped with the second screw thread on the first end perisporium of second salvage pole, the second screw thread with first screw thread phase-match, the first end suit of connecting cylinder is in on the second end periphery wall of first salvage pole, the second end suit of connecting cylinder is in on the second end periphery wall of second salvage pole, the shearing pin runs through connecting cylinder and plug are in on the second salvage pole, first salvage pole the second salvage pole with the equal coaxial arrangement of connecting cylinder. The jarring stuck releasing device in the embodiment can be used for releasing stuck pipe columns with low cost.
Description
Technical Field
The utility model relates to a petroleum engineering pipeline overhauls field, in particular to jarring unfreezing device.
Background
During the production operation of the oil well, the phenomenon that the downhole string or the downhole tool is trapped in the well and cannot move freely due to misoperation or other reasons is called sticking. The drill sticking can cause the oil-water well not to continue normal production activities and even can cause the whole oil-water well to be scrapped to cause great loss.
In the related art, the stuck drill problem is generally solved by means of releasing the stuck pipe column and the stuck shock. The movable pipe column is lifted up within the allowable range, and when the lifting load is greater than the frictional resistance of sand in the annular space, the oil pipe moves up to achieve the purpose of releasing the blockage. The jar is released from the stuck state by connecting an open-type lower beater with a fishing tool such as a hydraulic booster, a high-frequency jar and the like, and the lower part of the open-type lower beater is connected with the object to be fished through a drill rod and then lifted, so that the open-type lower beater generates a strong impact force instantly, and the object to be fished is subjected to strong vibration to release the stuck drill.
However, the hydraulic booster, the high-frequency jar and other fishing tools are expensive and high in maintenance cost, so that the hydraulic booster, the high-frequency jar and other fishing tools are not suitable for being widely used.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a jarring unfreezing device can with the low cost to the unfreezing by the tubular column of being stuck. The technical scheme is as follows:
the embodiment of the utility model provides a jarring unfreezing device, jarring unfreezing device includes first fishing rod, second fishing rod, connecting cylinder and shearing pin, be equipped with first screw thread on the first end perisporium of first fishing rod, be equipped with the second screw thread on the first end perisporium of second fishing rod, the second screw thread with first screw thread phase-match, the first end suit of connecting cylinder is in on the second end periphery wall of first fishing rod, the second end suit of connecting cylinder is in on the second end periphery wall of second fishing rod, the shearing pin runs through the connecting cylinder and insert on the second fishing rod, first fishing rod the second fishing rod with the equal coaxial arrangement of connecting cylinder.
Optionally, a first bearing convex ring is arranged on the outer peripheral wall of the first fishing rod, the first bearing convex ring is arranged coaxially with the first fishing rod, a second bearing convex ring is arranged on the inner peripheral wall of the connecting cylinder, the second bearing convex ring is arranged coaxially with the connecting cylinder, and one side of the second bearing convex ring, which faces the second end of the second fishing rod, is abutted against one side of the first bearing convex ring, which faces the second end of the first fishing rod.
Optionally, the outer circumferential wall of the first bearing convex ring is in sliding fit with the inner circumferential wall of the connecting cylinder.
Optionally, the second end of the first overshot rod is provided with a rod union, which is arranged coaxially with the first overshot rod, and which is threadedly connected with the first overshot rod.
Optionally, an end of the drill rod joint facing away from the first fishing rod is provided with a drill rod internal thread.
Optionally, a first end of the second fishing rod is provided with a connecting joint, the connecting joint is arranged coaxially with the second fishing rod, the first end of the connecting joint is in threaded connection with the second fishing rod, and the second thread is arranged at a second end of the connecting joint.
Optionally, the second end of the second fishing rod is provided with a drill rod external thread.
Optionally, the connecting cylinder includes a first mounting joint, a second mounting joint and an extension cylinder, the first mounting joint is in threaded connection with a first end of the extension cylinder, the first mounting joint is sleeved outside the first fishing rod, the second mounting joint is in threaded connection with a second end of the extension cylinder, and the second mounting joint is sleeved outside the second fishing rod.
Optionally, the second erection joint perisporium is equipped with a plurality of through-holes, the second fishing rod corresponds be equipped with the shrinkage pool on the through-hole, the shearing pin passes the through-hole fastening is in the shrinkage pool on the second fishing rod.
Optionally, the through holes are arranged at intervals around the axis of the second mounting joint.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
when the falling object in the well needs to be salvaged, the second fishing rod is connected with the falling object, then the first fishing rod is lifted, and the first fishing rod is connected with the second fishing rod through the connecting barrel and the shearing pin, so that the falling object can be driven to lift. If the falling object is not seriously stuck in the well, the falling object can be directly salvaged. If the fallen object is seriously stuck in the well, the fallen object can be stuck again after rising for a certain distance, and the shearing pin can be broken because of the sudden blocking of the fallen object, so that the second fishing rod and the connecting cylinder are not connected together any more, the second fishing rod falls along with the fallen object, and the fallen object can jar the well because of the action of gravity, thereby achieving the effect of loosening the stuck drill. After the drill chuck loosens, the first fishing rod is moved downwards, so that the first thread on the first fishing rod and the second thread on the second fishing rod are assembled together, and then the first fishing rod is carried out again to realize the fishing of the fallen objects. The embodiment of the utility model provides a jarring unfreezing device utilizes the gravity of junk self to realize that the inside of well unfreezes, need not to use other expensive hydraulic means, reduces the cost of knowing the operation of blocking.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a jarring stuck releasing device provided by an embodiment of the present invention.
The symbols in the drawings represent the following meanings:
1. a first fishing rod; 11. a first force bearing convex ring; 12. a drill pipe joint; 13. a first connecting rod;
2. a second fishing rod; 20. connecting a joint; 21. concave holes;
4. a connecting cylinder; 40. a second force bearing convex ring; 41. a first mounting joint; 42. a second mounting joint; 421. a through hole; 43. an extension cylinder; 44. a clamping table; 5. shearing the pin;
100. a first thread; 200. a second thread; 300. drilling rod internal threads; 400. and (4) external threads of the drill rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the utility model provides a jar is separated and is stuck device, as shown in fig. 1, this jar is separated and is stuck device includes first fishing rod 1, second fishing rod 2, connecting cylinder 4 and shear pin 5, be equipped with first screw thread 100 on the first end perisporium of first fishing rod 1, be equipped with second screw thread 200 on the first end perisporium of second fishing rod 2, second screw thread 200 and first screw thread 100 phase-match, the first end suit of connecting cylinder 4 is on the second end periphery wall of first fishing rod 1, the second end suit of connecting cylinder 4 is on the second end periphery wall of second fishing rod 2, shear pin 5 runs through connecting cylinder 4 and inserts on second fishing rod 2, first fishing rod 1, second fishing rod 2 and the equal coaxial arrangement of connecting cylinder 4.
When the falling object in the well needs to be salvaged, the second fishing rod is connected with the falling object, then the first fishing rod is lifted, and the first fishing rod is connected with the second fishing rod through the connecting barrel and the shearing pin, so that the falling object can be driven to lift. If the falling object is not seriously stuck in the well, the falling object can be directly salvaged. If the fallen object is seriously stuck in the well, the fallen object can be stuck again after rising for a certain distance, and the shearing pin can be broken because of the sudden blocking of the fallen object, so that the second fishing rod and the connecting cylinder are not connected together any more, the second fishing rod falls along with the fallen object, and the fallen object can jar the well because of the action of gravity, thereby achieving the effect of loosening the stuck drill. After the drill chuck loosens, the first fishing rod is moved downwards, so that the first thread on the first fishing rod and the second thread on the second fishing rod are assembled together, and then the first fishing rod is carried out again to realize the fishing of the fallen objects. The embodiment of the utility model provides a jarring unfreezing device utilizes the gravity of junk self to realize that the inside of well unfreezes, need not to use other expensive hydraulic means, reduces the cost of knowing the operation of blocking.
Optionally, a first force-bearing convex ring 11 is arranged on the outer peripheral wall of the first fishing rod 1, the first force-bearing convex ring 11 is arranged coaxially with the first fishing rod 1, a second force-bearing convex ring 40 is arranged on the inner peripheral wall of the connecting cylinder 4, the second force-bearing convex ring 40 is arranged coaxially with the connecting cylinder 4, and one side of the second force-bearing convex ring 40, which faces the second end of the second fishing rod 2, abuts against one side of the first force-bearing convex ring 11, which faces the second end of the first fishing rod 1.
In the above implementation, the above arrangement facilitates transferring the acting force borne by the lower end of the connecting cylinder 4 to the first overshot rod 1, and further indirectly pulling up the connecting cylinder 4 by applying an upward acting pulling force on the first overshot rod 1.
Optionally, the outer circumferential wall of the first bearing convex ring 11 is in sliding fit with the inner circumferential wall of the connecting cylinder 4.
In the above implementation manner, when the first fishing rod 1 moves upwards, the arrangement of the first force-bearing convex ring 11 and the second force-bearing convex ring 40 enables the connecting cylinder 4 to move upwards synchronously with the first fishing rod 1, so that the second fishing rod 2 drives the falling objects to move upwards. When the first fishing rod 1 moves downwards, if an obstacle blocks the connecting cylinder 4 to move downwards, the first fishing rod 1 and the connecting cylinder 4 can generate relative displacement, so that the first fishing rod 1 can normally move downwards, and the connecting cylinder 4 is prevented from influencing the normal assembly between the first fishing rod 1 and the second fishing rod 2.
Optionally, the second end of the first overshot rod 1 is provided with a drill rod coupling 12, the drill rod coupling 12 being arranged coaxially with the first overshot rod 1, the drill rod coupling 12 being threadedly connected with the first overshot rod 1.
In the above implementation, the first overshot rod 1 is connected with the drill pipe through the drill pipe joint 12, and the upward movement of the first overshot rod is realized by lifting up the drill pipe. And, because the first fishing rod 1 is connected with the drill rod through the drill rod joint 12, the abrasion caused by the direct connection of the first fishing rod 1 with the drill rod is avoided. When the drill rod joint 12 is scrapped due to excessive abrasion, only the drill rod joint 12 needs to be replaced, and the maintenance cost of the jarring stuck-releasing device is reduced.
Optionally, the end of the drill rod coupling 12 facing away from the first fishing rod 1 is provided with an internal drill rod thread 300.
In the above implementation, the drill rod internal thread 300 is provided to facilitate the removal of the drill rod coupling 12 from a drill rod or similar tool. By disconnecting the drill rod from the drill rod joint 12, on the one hand, the drill rod joint 12 and the first fishing rod 1 can be acted by exerting an acting force on the drill rod, and on the other hand, the number of the drill rods axially connected together can be adjusted by connecting, so that the jarring stuck releasing device is suitable for stuck releasing operations at different well depths.
Illustratively, the drill rod internal threads 300 may be tapered threads, and the tapered threads may be configured to facilitate assembly of the drill rod sub 12 with a drill rod, thereby improving the efficiency of the jarring stuck release device.
Optionally, the first end of the second fishing rod 2 is provided with a connection joint 20, the connection joint 20 is arranged coaxially with the second fishing rod 2, the first end of the connection joint 20 is threadedly connected with the second fishing rod 2, and the second thread 200 is provided at the second end of the connection joint 20.
In the above implementation, since the first fishing rod 1 is connected with the second fishing rod 2 through the connecting joint 20, abrasion caused by the direct connection of the first fishing rod 1 with the second fishing rod 2 is avoided. When the connecting joint 20 is scrapped due to excessive abrasion, only the connecting joint 20 needs to be replaced, and the maintenance cost of the shock stuck releasing device is reduced.
Optionally, the second end of the second fishing rod 2 is provided with a drill rod external thread 400.
In the above implementation manner, the drill rod external thread 400 is provided to facilitate the detachment and connection of the second fishing rod 2 with a drill rod or the like. Through dismantle the connection drilling rod on second fishing rod 2, can realize salvaging the junk with the help of being connected through drilling rod and junk on the one hand, on the other hand accessible connection adjustment axial number of drilling rod together, make this jarring unfreezing device be applicable to in the operation of unfreezing of different well depths.
Drill pipe external thread 400 may illustratively be a tapered thread. The second fishing rod 2 and the drill rod can be conveniently assembled due to the arrangement of the conical threads, and the working efficiency of the jarring unfreezing device is improved.
Optionally, the connecting cylinder 4 includes a first mounting joint 41, a second mounting joint 42 and an extension cylinder 43, the first mounting joint 41 is threadedly connected to a first end of the extension cylinder 43, the first mounting joint 41 is sleeved outside the first fishing rod 1, the second mounting joint 42 is threadedly connected to a second end of the extension cylinder 43, and the second mounting joint 42 is sleeved outside the second fishing rod 2.
In the above implementation manner, the length of the connecting cylinder 4 can be adjusted by replacing the extension cylinder 43, so that the length specification of the whole unfreezing device can be adjusted, and the unfreezing device is wider in application range.
Illustratively, the second force-bearing convex ring 40 is integrally connected with the first mounting joint 41, the second force-bearing convex ring 40 is arranged at one end of the first mounting joint 41 away from the second mounting joint, a clamping table 44 can be formed inside the second force-bearing convex ring 40 and the first mounting joint 41, and the clamping table 44 is clamped on the first force-bearing convex ring 11 to connect the connecting cylinder 4 to the first fishing rod 1.
Optionally, the peripheral wall of the second mounting joint 42 is provided with a plurality of through holes 421, the second fishing rod 2 is provided with recessed holes 21, the recessed holes 21 are arranged in one-to-one correspondence with the through holes 421, and the shearing pins 5 penetrate through the through holes 421 and are fastened in the recessed holes 21 on the second fishing rod 2.
In the above-described implementation, the shear pins 5 may be inserted into different numbers of the through holes 421, and different shearing loads may be set by the number of the shear pins. When the load to be carried is large, a larger number of shear pins 5 may be selected to be inserted into the through holes 421, and if the load to be carried is small, a smaller number of shear pins 5 may be selected to be inserted into the through holes 421.
Alternatively, the through holes 421 are arranged at intervals in the axial direction of the second mount joint 42.
In the above implementation manner, the through holes 421 are circumferentially arranged on the second mounting joint 42 at intervals, so that the uniform acting force of the second fishing rod 2 on the second mounting joint 42 can ensure that the stress on the section of the second fishing rod 2 is balanced.
The working mode of the jarring stuck-releasing device is briefly described as follows:
through the jarring unfreezing device that provides in this embodiment, when unfreezing to being stuck tubular column:
firstly, an extension barrel 43 with a proper length is selected according to the position of a falling object in the well, after the assembly of the jarring unfreezing device is finished, the falling object and the second fishing rod 2 are connected through a drill rod, and the first fishing rod 1 and the workover rig are connected through the drill rod, so that the jarring unfreezing device is located above the falling object by more than 2 m.
The jarring jam release is then depressed by the workover rig so that the jarring jam release can depress the junk to try the live weight.
And then, lifting the shock stuck-releasing device, and if the fallen objects can ascend along with the shock stuck-releasing device, successfully fishing the fallen objects. If the junk can't rise, then continue to improve the effort that the jarring unfreezes device that lifts of workover rig, the biggest shearing force that can bear that is greater than the shearing pin is lifted the effort until, the shearing pin will break, lead to the second fishing rod to lose in the twinkling of an eye and be connected between the connecting cylinder, the second fishing rod will drop along with the junk to because of the effect jarring oil well of gravity, thereby reach the effect that becomes flexible the sticking of drill.
Finally, the first fishing rod moves downwards, so that the first thread on the first fishing rod and the second thread on the connecting joint are assembled together, and then the first fishing rod is used again to realize the fishing of the fallen objects.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A jarring stuck-releasing device is characterized by comprising a first salvage rod (1), a second salvage rod (2), a connecting cylinder (4) and a shearing pin (5), a first thread (100) is arranged on the peripheral wall of the first end of the first fishing rod (1), the peripheral wall of the first end of the second fishing rod (2) is provided with a second thread (200), the second thread (200) is matched with the first thread (100), the first end of the connecting cylinder (4) is sleeved on the peripheral wall of the second end of the first fishing rod (1), the second end of the connecting cylinder (4) is sleeved on the peripheral wall of the second end of the second fishing rod (2), the cutting pin (5) penetrates through the connecting cylinder (4) and is inserted and installed on the second fishing rod (2), the first fishing rod (1), the second fishing rod (2) and the connecting cylinder (4) are all coaxially arranged.
2. The jarring unfreezing device of claim 1, characterized in that a first bearing convex ring (11) is arranged on the outer peripheral wall of the first fishing rod (1), the first bearing convex ring (11) and the first fishing rod (1) are coaxially arranged, a second bearing convex ring (40) is arranged on the inner peripheral wall of the connecting cylinder (4), the second bearing convex ring (40) and the connecting cylinder (4) are coaxially arranged, and one side of the second bearing convex ring (40) facing the second end of the second fishing rod (2) is abutted against one side of the first bearing convex ring (11) facing the second end of the first fishing rod (1).
3. The jar release device of claim 2 wherein the outer peripheral wall of the first force-bearing collar (11) is a sliding fit with the inner peripheral wall of the connector barrel (4).
4. The jar stuck freeing device according to claim 1, characterised in that the second end of the first overshot rod (1) is provided with a drill pipe joint (12), which drill pipe joint (12) is arranged coaxially with the first overshot rod (1), which drill pipe joint (12) is threaded with the first overshot rod (1).
5. The jar jam release device according to claim 4, wherein the end of the drill pipe joint (12) facing away from the first fishing rod (1) is provided with an internal drill pipe thread (300).
6. The jar stuck freeing according to any one of claims 1-5, characterized in that the first end of the second fishing rod (2) is provided with a connecting joint (20), the connecting joint (20) being arranged coaxially with the second fishing rod (2), the first end of the connecting joint (20) being in threaded connection with the second fishing rod (2), the second thread (200) being provided at the second end of the connecting joint (20).
7. The jar jam release device according to any one of claims 1-5, wherein the second end of the second fishing rod (2) is provided with a drill rod external thread (400).
8. The jar stuck freeing device according to any one of claims 1-5 wherein the connector barrel (4) comprises a first mounting adapter (41), a second mounting adapter (42) and an extension barrel (43), the first mounting adapter (41) being threadedly connected to a first end of the extension barrel (43), the first mounting adapter (41) being fitted over the first fishing rod (1), the second mounting adapter (42) being threadedly connected to a second end of the extension barrel (43), the second mounting adapter (42) being fitted over the second fishing rod (2).
9. The jarring unfreezing device of claim 8, wherein a plurality of through holes (421) are formed in the peripheral wall of the second mounting connector (42), a plurality of concave holes (21) are formed in the peripheral wall of the second fishing rod (2), each concave hole (21) is arranged in one-to-one correspondence with each through hole (421), and the shearing pins (5) penetrate through the through holes (421) and are inserted into the corresponding concave holes (21).
10. The jar jam release device of claim 9, wherein each of the through holes (421) is spaced circumferentially about an axis of the second mount joint (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476039.5U CN210977368U (en) | 2019-09-05 | 2019-09-05 | Shock jam releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476039.5U CN210977368U (en) | 2019-09-05 | 2019-09-05 | Shock jam releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210977368U true CN210977368U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921476039.5U Active CN210977368U (en) | 2019-09-05 | 2019-09-05 | Shock jam releasing device |
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| Country | Link |
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| CN (1) | CN210977368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199229A (en) * | 2021-04-13 | 2022-10-18 | 中石化石油工程技术服务有限公司 | Horizontal well jarring stuck-releasing operation method and combination |
-
2019
- 2019-09-05 CN CN201921476039.5U patent/CN210977368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199229A (en) * | 2021-04-13 | 2022-10-18 | 中石化石油工程技术服务有限公司 | Horizontal well jarring stuck-releasing operation method and combination |
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