CN112796703A - Claw spring type sliding sleeve oil drain device - Google Patents
Claw spring type sliding sleeve oil drain device Download PDFInfo
- Publication number
- CN112796703A CN112796703A CN202110278086.4A CN202110278086A CN112796703A CN 112796703 A CN112796703 A CN 112796703A CN 202110278086 A CN202110278086 A CN 202110278086A CN 112796703 A CN112796703 A CN 112796703A
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- China
- Prior art keywords
- ring
- sliding sleeve
- sleeve
- oil
- pipe column
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Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003129 oil well Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Springs (AREA)
Abstract
The invention provides a claw spring type sliding sleeve oil drain device. Relates to the technical field of oil field downhole tools. Go up tubular column upper portion and be equipped with the bench axle, go up the epaxial cover of bench and be equipped with the fender ring, go up the arc claw spring of fender ring fixed connection circumference equipartition, keep off the ring under the arc claw spring fixed connection, keep off the ring lower part down and be the conversion cover, the conversion cover is established on the lower bench axle of last tubular column, the conversion cover downside, it has the annular to pass through sealing washer clearance fit connection piston ring to open on the up end of lower tubular column, the piston ring bottom, it has limit hole and lower tubular column centre bore intercommunication to open on the lower tubular column. The invention has the following beneficial effects: the arc claw spring is fixed with the inner wall of the sleeve by boosting the oil pump, the sliding sleeve cannot rotate by lifting the oil pipe, the oil pipe is rotated to enable the sheath to go upwards to expose the oil drainage hole for oil drainage, and the arc claw spring is released from being fixed with the sleeve by lifting the oil pipe shearing pin shaft, so that the oil pipe is lifted smoothly.
Description
The technical field is as follows:
the invention relates to the technical field of oil field downhole tools, in particular to a pawl spring type sliding sleeve oil drain device.
Background art:
when the oil drainage of the traditional rotary oil drainer is carried out, oil drainage is carried out by rotating an oil pipe, when the oil drainage can be controlled by manpower at will, tools for opening the oil drainer and a sucker rod are not needed to be thrown in, and the influence of breaking off of the sucker rod is avoided, but a supporting shell of the oil drainer is contacted with the inner wall of a sleeve in the process of going down a well, when the oil pipe is rotated, the supporting shell is caused to rotate, a slip is driven to rotate when the supporting shell rotates, the slip extends out and is anchored on the sleeve under the action of a slope block, and the oil drainer acts to drain oil in the process of going down the well, so that the oil;
notice No. CN 104863544A discloses a rotatory bleeder, including tubing coupling, go up and press the cap, prevent changeing the slips, a spring, cell body etc. adopt and lift oil pipe, prevent changeing slips and draining cover combination and make draining cover can not rotate, rotate oil pipe again, draining cover rises, the draining hole exposes the draining, the draining is reliable, among this technical scheme, prevent changeing slips and do not have release and unblock function, slip subassembly collision sleeve pipe when lifting oil pipe after the draining for oil pipe lifts to be obstructed and even can not lift oil pipe.
The invention content is as follows:
in order to solve the problems, the invention provides a pawl spring type sliding sleeve oil drain device.
The technical scheme of the invention is as follows: a claw spring type sliding sleeve oil drain device comprises an upper pipe column, wherein an upper joint is arranged at the upper part of the upper pipe column, the lower part of the upper pipe column is hermetically connected with a lower pipe column through oil pipe threads, and a lower joint is arranged at the lower part of the lower pipe column;
an upper step shaft is arranged at the upper part of the upper tubular column, an upper retaining ring is sleeved on the upper step shaft and fixedly connected with arc-shaped claw springs which are uniformly distributed on the circumference, the arc-shaped claw springs are fixedly connected with a lower retaining ring, a conversion sleeve is arranged at the lower part of the lower retaining ring and sleeved on the lower step shaft of the upper tubular column, a ring groove is formed in the upper end surface of the lower tubular column and is in clearance fit with a piston ring through a seal ring, the bottom of the piston ring is formed in the lower tubular column, and an edge hole is formed in the lower tubular column and is communicated with a central hole of;
the lower part of the conversion sleeve, the excircle of the lower tubular column are in threaded connection with the sliding sleeve, the inner side of the sliding sleeve is provided with an oil drainage hole on the pipe wall of the lower tubular column, and sealing rings are arranged on the upper side and the lower side of the oil drainage hole and between the sliding sleeve and the lower tubular column.
The upper end face of the sliding sleeve is provided with a tooth-shaped ring, the outer side of the lower end face of the conversion sleeve is provided with a tooth-shaped ring which is the same as the sliding sleeve, and the conversion sleeve is connected with the lower retaining ring through the tooth-shaped ring.
The inner side of the lower baffle ring is provided with a counter bore, a spring and a pin shaft are arranged in the counter bore, and the upper step shaft is provided with a positioning groove.
When the piston ring is installed, the arc-shaped claw spring pushes the lower retaining ring and the conversion sleeve, and the conversion sleeve is pressed against the upper end face of the piston ring.
The invention has the following beneficial effects: the arc claw spring is fixed with the inner wall of the sleeve by boosting the oil pump, the sliding sleeve cannot rotate by lifting the oil pipe, the oil pipe is rotated to enable the sheath to go upwards to expose the oil drainage hole for oil drainage, and the arc claw spring is released from being fixed with the sleeve by lifting the oil pipe shearing pin shaft, so that the oil pipe is lifted smoothly.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
In the figure, 1-upper pipe column, 2-upper baffle ring, 3-arc claw spring, 4-positioning groove, 5-spring, 6-pin shaft, 7-lower baffle ring, 8-conversion sleeve, 9-piston ring, 10-lower pipe column, 11-sliding sleeve, 12-oil drain hole, 13-lower joint, 14-tooth ring, 15-upper joint, 16-side hole, 17-upper step shaft, 18-lower step shaft and 19-counter bore.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, a jaw spring type sliding sleeve oil drain comprises an upper pipe column 1, wherein an upper joint 15 is arranged at the upper part of the upper pipe column 1, the lower part of the upper pipe column 1 is hermetically connected with a lower pipe column 10 through oil pipe threads, a lower joint 13 is arranged at the lower part of the lower pipe column 10, and the upper joint 15 and the lower joint 13 are used for connecting an oil well pump and an oil pipe;
an upper step shaft 17 is arranged at the upper part of an upper pipe column 1, an upper baffle ring 2 is sleeved on the upper step shaft 17, the upper baffle ring 2 is fixedly connected with arc-shaped claw springs 3 which are uniformly distributed on the circumference, the arc-shaped claw springs 3 are fixedly connected with a lower baffle ring 7, a conversion sleeve 8 is arranged at the lower part of the lower baffle ring 7, the conversion sleeve 8 is sleeved on a lower step shaft 18 of the upper pipe column 1, a ring groove is formed in the upper end surface of a lower pipe column 10 at the lower side of the conversion sleeve 8, the ring groove is connected with a piston ring 9 through a seal ring in a clearance fit manner, the bottom of the piston ring 9 is formed in the lower;
the lower part of the conversion sleeve 8, the excircle threaded connection sliding sleeve 11 of the lower tubular column 10, 11 insides of the sliding sleeve, open the oil drainage hole 12 on the pipe wall of the lower tubular column 10, both sides about the oil drainage hole 12, all are equipped with the seal ring between sliding sleeve 11 and the lower tubular column 10, the oil drainage hole 12 is sealed in 11 insides of sliding sleeve and is not communicated with the outside of the lower tubular column 10.
The upper end face of the sliding sleeve 11 is provided with a tooth-shaped ring 14, the outer side of the lower end face of the conversion sleeve 8 is provided with the tooth-shaped ring 14 which is the same as the sliding sleeve 11, the conversion sleeve 8 is connected with the lower retaining ring 7 through the tooth-shaped ring 14, and the tooth-shaped ring 14 is used for transmitting torque.
The inner side of the lower baffle ring 7 is provided with a counter bore 19, a spring 5 and a pin shaft 6 are arranged in the counter bore 19, and the upper side of the counter bore 19 and the upper step shaft 17 are provided with positioning grooves 4.
When the piston ring is installed, the arc-shaped claw spring 3 pushes the lower retaining ring 7 and the conversion sleeve 8, and the conversion sleeve 8 is pressed against the upper end face of the piston ring 9.
The claw spring type sliding sleeve oil drain device is connected to the upper end of an oil well pump and is arranged at a preset position, when the oil well pump pumps oil, the pressure in the oil pipe rises, the piston ring 9 is pushed to move upwards by the pressure, the piston ring 9 pushes the conversion sleeve 8 and the lower retaining ring 7 to move upwards, the pin shaft 6 on the lower retaining ring 7 moves upwards and falls into the positioning groove 4, the lower retaining ring 7 is positioned, the arc-shaped claw spring 3 expands outwards to abut against the inner wall of a sleeve, the arc-shaped claw spring 3 is fixed with the inner wall of the sleeve under the elastic action of the arc-shaped claw spring 3, and the conversion sleeve 8 cannot rotate under the action.
When oil drainage is needed, the oil pipe is lifted, the toothed ring 14 on the upper part of the sliding sleeve 11 is meshed with the toothed ring 14 of the conversion sleeve 8, the sliding sleeve 11 cannot rotate, then the oil pipe is rotated, the sliding sleeve 11 rises under the action of the thread of the lower pipe column 10, and the oil drainage hole 12 is exposed for oil drainage.
After oil drainage is finished, the oil pipe is lifted, under the fixing action of the arc-shaped claw spring 3 and the sleeve, the counter bore 19 and the positioning groove 4 of the lower retaining ring 7 shear the pin shaft 6, when a certain lifting force is reached, the pin shaft 6 is sheared, the lower retaining ring 7 loses constraint, the lower part of the arc-shaped claw spring 3 loses constraint and retracts to return to a natural state, the fixation between the arc-shaped claw spring 3 and the sleeve is released, and the oil pipe is lifted smoothly.
The arc claw spring is fixed with the inner wall of the sleeve by boosting the oil pump, the sliding sleeve cannot rotate by lifting the oil pipe, the oil pipe is rotated to enable the sheath to go upwards to expose the oil drainage hole for oil drainage, and the arc claw spring is released from being fixed with the sleeve by lifting the oil pipe shearing pin shaft, so that the oil pipe is lifted smoothly.
Claims (4)
1. The utility model provides a claw spring formula sliding sleeve bleeder, includes tubular column (1), its characterized in that: an upper joint (15) is arranged at the upper part of the upper pipe column (1), the lower part of the upper pipe column (1) is hermetically connected with a lower pipe column (10) through oil pipe threads, and a lower joint (13) is arranged at the lower part of the lower pipe column (10);
an upper step shaft (17) is arranged at the upper part of the upper pipe column (1), an upper retaining ring (2) is sleeved on the upper step shaft (17), the upper retaining ring (2) is fixedly connected with arc-shaped claw springs (3) which are uniformly distributed on the circumference, the arc-shaped claw springs (3) are fixedly connected with a lower retaining ring (7), a conversion sleeve (8) is arranged at the lower part of the lower retaining ring (7), the conversion sleeve (8) is sleeved on a lower step shaft (18) of the upper pipe column (1), the lower side of the conversion sleeve (8) is arranged on the upper end surface of the lower pipe column (10), a ring groove is formed in the upper end surface of the lower pipe column (10) and is in clearance fit connection with a piston ring (9) through a seal ring, the bottom of the piston ring (9) is formed;
the lower part of the conversion sleeve (8), the excircle of the lower pipe column (10) is in threaded connection with the sliding sleeve (11), the inner side of the sliding sleeve (11) is provided with an oil drainage hole (12) on the pipe wall of the lower pipe column (10), the upper side and the lower side of the oil drainage hole (12) are both provided with sealing rings between the sliding sleeve (11) and the lower pipe column (10).
2. A pawl spring sliding sleeve drain as set forth in claim 1, wherein: the upper end face of the sliding sleeve (11) is provided with a tooth-shaped ring (14), the outer side of the lower end face of the conversion sleeve (8) is provided with the tooth-shaped ring (14) which is the same as the sliding sleeve (11), and the conversion sleeve (8) is connected with the lower retaining ring (7) through the tooth-shaped ring (14).
3. A pawl spring sliding sleeve drain as set forth in claim 1, wherein: the inner side of the lower baffle ring (7) is provided with a counter bore (19), a spring (5) and a pin shaft (6) are arranged in the counter bore (19), and the upper step shaft (17) is provided with a positioning groove (4) at the upper side of the counter bore (19).
4. A pawl spring sliding sleeve drain as set forth in claim 1, wherein: when the piston ring is installed, the arc-shaped claw spring (3) pushes the lower retaining ring (7) and the conversion sleeve (8), and the conversion sleeve (8) is pressed against the upper end face of the piston ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278086.4A CN112796703B (en) | 2021-03-16 | 2021-03-16 | Claw spring type sliding sleeve oil drain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278086.4A CN112796703B (en) | 2021-03-16 | 2021-03-16 | Claw spring type sliding sleeve oil drain device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112796703A true CN112796703A (en) | 2021-05-14 |
| CN112796703B CN112796703B (en) | 2022-03-04 |
Family
ID=75817070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110278086.4A Active CN112796703B (en) | 2021-03-16 | 2021-03-16 | Claw spring type sliding sleeve oil drain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112796703B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB253551A (en) * | 1925-06-12 | 1927-02-24 | Elmer Dee Smyser | Tubing bleeder for oil wells and the like |
| CN101148977A (en) * | 2007-10-10 | 2008-03-26 | 白霞 | Oil-tube draining device |
| CN202249945U (en) * | 2011-07-25 | 2012-05-30 | 中国石油天然气股份有限公司 | Self-locking type hydraulic oil drain device |
| CN110700791A (en) * | 2019-11-01 | 2020-01-17 | 辽宁新华仪器有限公司 | Environment-friendly oil drainage tool for oil pipe |
| CN111219164A (en) * | 2018-11-26 | 2020-06-02 | 东营咸亨工贸有限公司 | Oil drain device of oil pumping pipe column |
-
2021
- 2021-03-16 CN CN202110278086.4A patent/CN112796703B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB253551A (en) * | 1925-06-12 | 1927-02-24 | Elmer Dee Smyser | Tubing bleeder for oil wells and the like |
| CN101148977A (en) * | 2007-10-10 | 2008-03-26 | 白霞 | Oil-tube draining device |
| CN202249945U (en) * | 2011-07-25 | 2012-05-30 | 中国石油天然气股份有限公司 | Self-locking type hydraulic oil drain device |
| CN111219164A (en) * | 2018-11-26 | 2020-06-02 | 东营咸亨工贸有限公司 | Oil drain device of oil pumping pipe column |
| CN110700791A (en) * | 2019-11-01 | 2020-01-17 | 辽宁新华仪器有限公司 | Environment-friendly oil drainage tool for oil pipe |
Non-Patent Citations (1)
| Title |
|---|
| 张军等: "旋转式泄油器的研制", 《石油矿场机械》 * |
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| Publication number | Publication date |
|---|---|
| CN112796703B (en) | 2022-03-04 |
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