CN202596654U - Pumping well sliding sleeve type leakage-proof tool - Google Patents
Pumping well sliding sleeve type leakage-proof tool Download PDFInfo
- Publication number
- CN202596654U CN202596654U CN 201220199634 CN201220199634U CN202596654U CN 202596654 U CN202596654 U CN 202596654U CN 201220199634 CN201220199634 CN 201220199634 CN 201220199634 U CN201220199634 U CN 201220199634U CN 202596654 U CN202596654 U CN 202596654U
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- sliding sleeve
- central tube
- wall
- sleeve type
- top connection
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Abstract
The utility model provides a pumping well sliding sleeve type leakage-proof tool, and belongs to the field of oil field sucker-rod pump oil recovery technique. The pumping well sliding sleeve type leakage-proof tool is characterized in that the lower end of an upper joint is in threaded connection with a center pipe, a check valve is arranged inside the upper joint, and a transverse hole is arranged on the wall of the upper joint. An annular sand guide groove is evenly distributed on the outer wall of the center pipe, a sliding sleeve type packing cup packer is sleeved on the outer wall of the center pipe, the lower end of the center pipe is provided with external threads and is in threaded connection with a lower joint, and the lower end of the lower joint is provided with oil pipe internal threads. The pumping well sliding sleeve type leakage-proof tool has the advantages of being capable of reducing loss of paraffin removal liquid of the pumping well under the pumping well, reducing waste, and decreasing oil layer pollution.
Description
Technical field
The utility model relates to oil field sucker rod pumping technical field, and particularly a kind of down-hole leakproof special tool is a kind of pumpingh well sleeve type leakproof instrument.
Background technology
At present, the oil field sucker rod pumping is used hollow rod hot-washing wax remover technology, and this method fluid volume reduces, and the heat time of washing shortens, and the hollow rod cost is high, quality is unstable, has restricted the popularization of hollow rod hot-washing wax remover.Adopt Z331 packer leakproof tubing string, utilize packer and the ball-and-seat prevention wax removal liquid oil reservoir that bleeds.Because be prone to cause packer rubber to damage during the oil pipe wriggling, period of validity is about 3 months.Adopt temperature control heat to wash leakproof wax removal technology, packer for C and WK sets when temperature reaches 60 ℃, and temperature-sensing valve is opened; After descending, temperature restores to the original state again.This method can stop the wax removal liquid oil reservoir that bleeds, and shortening heat washes the time, but wax removal liquid wastage is still bigger.
The utility model content
The purpose of the utility model is: a kind of pumpingh well sleeve type leakproof instrument is provided, reduces the leakage of pumpingh well wax removal liquid in the down-hole, cut the waste, reduce oil layer pollution.
The technical scheme that the utility model adopts is: pumpingh well sleeve type leakproof instrument comprises top connection, valve ball, valve seat, central tube, sleeve type cup packer, baffle ring and lower contact.It is characterized in that: there is the oil pipe internal thread upper end of top connection, on the tubing string that can connect.There is internal thread lower end in top connection, the lower end of the top connection central tube that is threaded; In top connection, be provided with ball-and-seat, ball-and-seat is made up of the valve ball and the valve seat of annular, and valve seat is fixed on the upper end of central tube; Valve ball is on valve seat; On the wall of top connection, transverse holes is arranged; On the outer wall of central tube, be evenly distributed with annular and lead sand launder; On the outer wall of central tube, be with a sleeve type cup packer; Described sleeve type cup packer is made up of sliding sleeve, last gland, rubber bowl and following gland, and columnar sliding sleeve is enclosed within on the central tube outer wall; The two ends up and down of sliding sleeve have external screw thread respectively; On sliding sleeve, be with the rubber bowl, the upper end screw thread of sliding sleeve is connected with gland, and the lower end screw thread of sliding sleeve is connected with down gland, in the middle of last gland is fixed on the rubber bowl with following gland; There is external screw thread the lower end of central tube, the lower contact that is threaded of the lower end of central tube, and there is the oil pipe internal thread lower contact lower end.
In order to make the top connection fixation, the cross screw hole is arranged on the top connection wall, anti-dropout bolt is arranged in the cross screw hole; In order to make the lower contact fixation, the cross screw hole is arranged on the lower contact wall, cross screw has hold-down screw in the hole, in the shrinkage pool of the inner of hold-down screw on center tube wall.
The beneficial effect of the utility model: the utility model pumpingh well sleeve type leakproof instrument, can reduce of the leakage of pumpingh well wax removal liquid in the down-hole, cut the waste, reduce oil layer pollution.
Description of drawings
Fig. 1 is the utility model pumpingh well sleeve type leakproof tool construction generalized section.
Among the figure, the 1-top connection, the 2-valve ball, the 3-valve seat, 4-prevents the dropout bolt, the 5-central tube, 6-leads sand launder, 7-sliding sleeve, the last gland of 8-, 9-rubber bowl, gland under the 10-, 11-baffle ring, 12-hold-down screw, 13-lower contact.
The specific embodiment
Embodiment 1: with a pumpingh well sleeve type leakproof instrument is example, and the utility model is done further explain.
Consult Fig. 1.The utility model pumpingh well sleeve type leakproof instrument comprises top connection 1, valve ball 2, valve seat 3, central tube 5, sleeve type cup packer, baffle ring 11 and lower contact 13.
There is API standard oil pipe internal thread the upper end of top connection 1, on the tubing string that can connect.There is internal thread lower end in top connection 1, the lower end of top connection 1 central tube 5 that is threaded.On top connection 1 wall, the cross screw hole is arranged, anti-dropout bolt 4 is arranged in the cross screw hole.In top connection 1, be provided with ball-and-seat, ball-and-seat is made up of the valve ball 2 and the valve seat 3 of annular, and valve seat 3 is fixed on the upper end of central tube 5.Valve ball 2 is on valve seat 3.Two transverse holes are arranged on the wall of top connection 1.On the outer wall of central tube 5, be evenly distributed with annular and lead sand launder 6; Two adjacent distances of leading between the sand launder 6 are 100mm.On the outer wall of central tube 5, be with a sleeve type cup packer.Described sleeve type cup packer is made up of sliding sleeve 7, last gland 8, rubber bowl 9 and following gland 10, and columnar sliding sleeve 7 is enclosed within on central tube 5 outer walls; The two ends up and down of sliding sleeve 7 have external screw thread respectively; On sliding sleeve 7, be with rubber bowl 9, the upper end screw thread of sliding sleeve 7 is connected with gland 8, and the lower end screw thread of sliding sleeve 7 is connected with down gland 10, in the middle of last gland 8 is fixed on rubber bowl 9 with following gland 10.There is external screw thread the lower end of central tube 5, and the lower contact 13 that is threaded of the lower end of central tube 5 has the cross screw hole on lower contact 13 walls, hold-down screw 12 is arranged, in the shrinkage pool of the inner of hold-down screw 12 on central tube 5 walls in the cross screw hole.There is API standard oil pipe internal thread lower contact 13 lower ends.
When using the thermalization wax removal, change the clear liquid body and all can normally return out, average individual well single economized clear liquid 15m
3, respond well.
Claims (2)
1. a pumpingh well sleeve type leakproof instrument comprises top connection (1), valve ball (2), valve seat (3), central tube (5), sleeve type cup packer, baffle ring (11) and lower contact (13); It is characterized in that: there is the oil pipe internal thread upper end of top connection (1), in the lower end of top connection (1) internal thread is arranged, the lower end of top connection (1) central tube (5) that is threaded; In top connection (1), be provided with ball-and-seat, ball-and-seat is made up of the valve seat (3) of valve ball (2) and annular, and valve seat (3) is fixed on the upper end of central tube (5); Valve ball (2) is on valve seat (3); On the wall of top connection (1), transverse holes is arranged; On the outer wall of central tube (5), be evenly distributed with annular and lead sand launder (6); On the outer wall of central tube (5), be with a sleeve type cup packer; Described sleeve type cup packer is made up of sliding sleeve (7), last gland (8), rubber bowl (9) and following gland (10), and columnar sliding sleeve (7) is enclosed within on central tube (5) outer wall; The two ends up and down of sliding sleeve (7) have external screw thread respectively; On sliding sleeve (7), be with rubber bowl (9), the upper end screw thread of sliding sleeve (7) is connected with gland (8), and the lower end screw thread of sliding sleeve (7) is connected with down gland (10), in the middle of last gland (8) and following gland (10) are fixed on rubber bowl (9); There is external screw thread the lower end of central tube (5), the lower contact (13) that is threaded of the lower end of central tube (5), and there is the oil pipe internal thread lower contact (13) lower end.
2. pumpingh well sleeve type leakproof instrument according to claim 1 is characterized in that: in order to make top connection (1) fixation, on top connection (1) wall, the cross screw hole is arranged, anti-dropout bolt (4) is arranged in the cross screw hole; In order to make lower contact (13) fixation, on lower contact (13) wall, the cross screw hole is arranged, hold-down screw (12) is arranged, in the shrinkage pool of the inner of hold-down screw (12) on central tube (5) wall in the cross screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199634 CN202596654U (en) | 2012-05-04 | 2012-05-04 | Pumping well sliding sleeve type leakage-proof tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199634 CN202596654U (en) | 2012-05-04 | 2012-05-04 | Pumping well sliding sleeve type leakage-proof tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596654U true CN202596654U (en) | 2012-12-12 |
Family
ID=47314201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220199634 Expired - Fee Related CN202596654U (en) | 2012-05-04 | 2012-05-04 | Pumping well sliding sleeve type leakage-proof tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596654U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485745A (en) * | 2013-08-16 | 2014-01-01 | 刘新东 | Expandable leakproof well cleanout packer |
| CN105464616A (en) * | 2016-01-06 | 2016-04-06 | 冯俊杰 | Well-washing environment-friendly double-cup packer |
| CN107120109A (en) * | 2017-06-05 | 2017-09-01 | 中国石油天然气股份有限公司 | A kind of split-type sands-proof check casing collar locator (CCL) |
| CN109838215A (en) * | 2017-11-27 | 2019-06-04 | 中国石油天然气股份有限公司 | Packer |
-
2012
- 2012-05-04 CN CN 201220199634 patent/CN202596654U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485745A (en) * | 2013-08-16 | 2014-01-01 | 刘新东 | Expandable leakproof well cleanout packer |
| CN103485745B (en) * | 2013-08-16 | 2015-12-09 | 刘新东 | Expanding leak-proof well-washing packer |
| CN105464616A (en) * | 2016-01-06 | 2016-04-06 | 冯俊杰 | Well-washing environment-friendly double-cup packer |
| CN107120109A (en) * | 2017-06-05 | 2017-09-01 | 中国石油天然气股份有限公司 | A kind of split-type sands-proof check casing collar locator (CCL) |
| CN109838215A (en) * | 2017-11-27 | 2019-06-04 | 中国石油天然气股份有限公司 | Packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20210504 |