CN211287588U - Large-diameter bent sucker rod overshot - Google Patents
Large-diameter bent sucker rod overshot Download PDFInfo
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- CN211287588U CN211287588U CN201922440985.0U CN201922440985U CN211287588U CN 211287588 U CN211287588 U CN 211287588U CN 201922440985 U CN201922440985 U CN 201922440985U CN 211287588 U CN211287588 U CN 211287588U
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- sucker rod
- barrel body
- hole
- overshot
- inner cavity
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Abstract
The utility model discloses a large-diameter bent sucker rod overshot, which comprises a barrel body, wherein one end of the barrel body is axially connected with an upper joint, the other end of the barrel body is connected with a guide shoe, the side wall of the barrel body is provided with a hole, the hole is communicated with the inner cavity of the barrel body, the inner cavity of the barrel body is also fixedly connected with a slope plate, and the slope plate is opposite to the hole; the device can satisfy the salvage of the sucker rod that seriously warp in the sleeve pipe, enables the fish and gets into instrument salvage position under minimum deformation resistance, and can not damage the fish top.
Description
Technical Field
The utility model belongs to the technical field of oil development, a big crooked sucker rod overshot of latus rectum is related to.
Background
At present, a sucker-rod pump oil extraction process is adopted in an oil field, and due to the factors of severe working environment of underground pipe rods, multiple corrosiveness of well fluid, eccentric wear of directional inclined wells, quality problems of thread processing of pipe rods and the like, an oil pumping pipe column falls into a well. In various sucker rod string well falling accidents, the sucker rod fish tops in a plurality of wells are higher than the oil pipe fish tops, so that the sucker rod fish tops are positioned in the sleeve, and the sucker rod fish tops are often seriously bent and deformed due to improper later fishing method.
The existing tool for fishing the sucker rod in the oil field sleeve comprises a three-ball fisher, a loose-leaf fishing barrel, a slip fishing barrel, a slider type bent sucker rod fishing barrel and the like, wherein the fishing tools are effective to the working condition that the top of the fish is not bent or the bending amount is smaller, if the top of the fish is bent seriously, the inner cavity channel of the fishing tool is narrow and small, the tool cannot enter the top of the fish, and the fishing operation fails.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big crooked sucker rod overshot of latus rectum has solved the special fishing tool that does not have the bending deformation fish among the prior art so that salvage the problem of inefficiency.
The utility model discloses the technical scheme who adopts is, the crooked sucker rod overshot of big latus rectum, including the barrel, barrel one end axial is connected with the top connection, and the barrel other end is connected with the guide shoe, and the lateral wall of barrel is opened porosely, and the hole link up with the inner chamber of barrel, and the still rigid coupling of barrel inner chamber has the ramp, and the ramp is relative with the position in hole.
The utility model is also characterized in that,
the connection mode of the cylinder body and the upper joint comprises threaded connection.
The hole is arranged in the middle of the side wall of the cylinder body.
The hole is oval, and the lower part of the hole is fixedly connected with a pair of upward hook tips.
An included angle between the pair of hook tips is arranged in a V shape.
Each hook tip inclines towards the inner cavity of the cylinder body.
The angle of the hook tip inclined to the cylinder body is 15-20 degrees.
The utility model discloses a big crooked sucker rod overshot of latus rectum has following beneficial effect at least:
firstly, the method that the side wall of the cylinder is provided with a hole and the inner cavity of the cylinder is fixedly connected with a slope plate is adopted to salvage the bent and deformed fish such as a bent sucker rod, and the slope plate can be used for clamping the column to fish;
secondly, the hole on the side wall of the cylinder body is opened into an elliptical shape, the lower part of the elliptical hole is fixedly connected with a hook tip, the hook tip is inclined back to the inner cavity of the cylinder body, and the hook tip can hook the fish;
thirdly, the pair of hook tips are arranged in a V shape, and the formed V-shaped groove can clamp and hang fishes such as a joint of a sucker rod;
to sum up, the utility model discloses a big latus rectum crooked sucker rod overshot, simple structure, the function is practical, can high-efficiently hug closely the junk of cover intraductal wall to crooked sucker rod and salvage, improves construction operation quality for the operation progress realizes that the cover grinds and salvages an organic wholely, and the practicality is strong, not only reduces the operating cost, can also improve work efficiency.
Drawings
FIG. 1 is a schematic structural view of the fishing barrel for the large-diameter curved sucker rod of the present invention;
figure 2 is a right side view of the present invention from figure 1.
In the figure, 1, an upper joint, 2, a cylinder, 3, a hook tip, 4, a slope plate, 5, a V-shaped groove, 6, a guide shoe and 7, holes are formed.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The technical scheme of the utility model is that, the large-bore curved sucker rod overshot, as shown in fig. 1 and 2, comprises a barrel body 2, one end of the barrel body 2 is axially connected with an upper joint 1, the upper joint 1 is cylindrical and has a thread in the inner cavity, the other end of the barrel body 2 is connected with a guide shoe 6, the side wall of the barrel body 2 is provided with a hole 7, the hole 7 is arranged in the middle of the side wall of the barrel body 2, the hole 7 is communicated with the inner cavity of the barrel body 2, the inner cavity of the barrel body 2 is further fixedly connected with a slope plate 4, and the slope plate 4; the slope plate 4 and the hole 7 are used for fishing the bent and deformed fish such as a bent sucker rod, and the slope plate 4 can be used for clamping the column to fish.
As shown in fig. 1, the connection mode of the cylinder 2 and the upper joint 1 comprises a threaded connection; the threaded connection is convenient to disassemble.
As shown in fig. 1 and 2, the hole 7 is oval, the lower part of the hole 7 is fixedly connected with a pair of upward hook tips 3, an included angle of 15-20 degrees is formed between the pair of hook tips 3, the pair of hook tips 3 form a V-shaped groove 5, each hook tip 3 inclines towards the inner cavity of the cylinder body 2, the oval hole on the side wall of the cylinder body and the hook tip which is fixedly connected with the lower part of the oval hole and inclines towards the inner cavity of the cylinder body are hooked back, so that the fish can be hooked; the hook tip 3 forms a V-shaped groove which can clamp and hang fishes such as sucker rod joints.
The utility model discloses the working process of a big latus rectum crooked sucker rod overshot:
step 1, connecting a salvaging pipe column with an internal thread of an upper joint 1, lowering a salvaging barrel to the fish top position of a bent sucker rod, applying bit pressure of 5-20kN, and leading the bent sucker rod into an inner cavity of a barrel body 2 through a guide shoe 6 if the pressure is gradually reduced or disappears;
The utility model discloses the cost of manufacture of the crooked sucker rod overshot of big latus rectum is about 1500 yuan, reduces 4 rounds of work load according to the single well, practices thrift about 13200 yuan of working expenses (the working expenses of single round is 3300 yuan), and 10 well times are used successively to this instrument, saves salvage work load 40 rounds, saves 13 ten thousand yuan of expense, has good realistic economic benefits.
The utility model discloses a big crooked sucker rod overshot of latus rectum can satisfy salvaging at the intraductal serious bending deformation's of cover sucker rod, enables the fish and gets into the instrument and salvage the position under minimum deformation resistance, and can not damage the fish top.
Claims (7)
1. The large-drift-diameter bent sucker rod overshot is characterized by comprising a barrel body (2), wherein an upper joint (1) is axially connected to one end of the barrel body (2), a guide shoe (6) is connected to the other end of the barrel body (2), a hole (7) is formed in the side wall of the barrel body (2), the hole (7) is communicated with an inner cavity of the barrel body (2), a slope plate (4) is fixedly connected to the inner cavity of the barrel body (2), and the slope plate (4) is opposite to the hole (7).
2. The large-bore curved sucker rod overshot of claim 1, characterized in that the connection of the cylinder (2) and the upper joint (1) comprises a threaded connection.
3. The large-bore curved sucker rod overshot of claim 1, characterized in that the hole (7) is opened in the middle of the side wall of the cylinder (2).
4. The large-diameter curved sucker rod overshot of claim 1, characterized in that the hole (7) is oval, and the lower part of the hole (7) is fixedly connected with a pair of upward hook tips (3).
5. The large-bore curved sucker rod overshot of claim 4, characterized in that an included angle between a pair of the hook tips (3) is arranged in a V shape.
6. The large-bore curved sucker rod overshot of claim 4, characterized in that each hook tip (3) is inclined towards the inner cavity of the cylinder body (2).
7. The large-bore curved sucker rod overshot of claim 6, characterized in that the angle of inclination of the hook tip (3) to the cylinder (2) comprises 15-20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922440985.0U CN211287588U (en) | 2019-12-30 | 2019-12-30 | Large-diameter bent sucker rod overshot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922440985.0U CN211287588U (en) | 2019-12-30 | 2019-12-30 | Large-diameter bent sucker rod overshot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211287588U true CN211287588U (en) | 2020-08-18 |
Family
ID=72034657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922440985.0U Active CN211287588U (en) | 2019-12-30 | 2019-12-30 | Large-diameter bent sucker rod overshot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211287588U (en) |
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2019
- 2019-12-30 CN CN201922440985.0U patent/CN211287588U/en active Active
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