CN201620840U - Circulation slide sleeve - Google Patents
Circulation slide sleeve Download PDFInfo
- Publication number
- CN201620840U CN201620840U CN201020138354XU CN201020138354U CN201620840U CN 201620840 U CN201620840 U CN 201620840U CN 201020138354X U CN201020138354X U CN 201020138354XU CN 201020138354 U CN201020138354 U CN 201020138354U CN 201620840 U CN201620840 U CN 201620840U
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- joint
- ring
- sliding sleeve
- slide sleeve
- groove
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- Expired - Lifetime
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Abstract
The utility model relates to a circulation slide sleeve, which consists of an upper joint, a lower joint, a middle joint and an inner slide sleeve. The utility model is characterized in that the upper joint, the middle joint and the lower joint are connected into a cylinder body through screw threads, the inner slide sleeve is a cylinder body with holes at both ends, is positioned in the cylinder body formed by the upper joint, the middle joint and the lower joint through being connected, and upwards and downwards slides between built-in position limiting steps arranged in the upper joint and the lower joint in the cylinder body, a groove with communicated inside and outside is arranged on the middle joint, a sealing baffle ring, an O-shaped ring, a sealing ring blocking ring, a V-shaped packing, a sealing baffle ring and an O-shaped ring are sequentially arranged in a space formed by the groove, the upper joint, the middle joint and the inner slide sleeve, and a sealing baffle ring, a V-shaped packing, an O-shaped ring, a sealing baffle ring and an O-shaped ring are sequentially arranged in a space formed by the groove, the lower joint, the middle joint and the inner slide sleeve. The utility model is applicable to the oil-gas well liquid discharge production, can improve the gas lifting efficiency, can increase the production pressure difference, and can improve the recovery rate.
Description
Technical field
The utility model relates to a kind of downhole tool circulation sliding sleeve that is applied to oil field oil recovery gas production artificial lift.
Background technology
Adopt injection natural gas, liquid nitrogen/nitrogen gas to carry out lifting, get rid of the oil/water in oil/gas-water well, thereby the extraction oil/gas is one of best process of economic benefit in the modern oil recovery/water pumping gas production process, injecting gas can go deep in the liquid by gas lift valves at different levels from top to bottom one by one, the above liquid weight in oil pipe bottom is lightened, and reduction is produced thereby assurance oil/gas well is continuous smoothly the back pressure of payzone.
The utility model content
The purpose of this utility model is a kind of circulation sliding sleeve of design, and the wire rope operation can be passed through in inside, seat envelope gas acceleration pump or blanking plug, and behind acceleration pump or other workpiece slides cover, the seal on the workpiece can not slide up and down in sliding sleeve in relevant position seat envelope.Sliding sleeve has the joint that connects for exterior tubing outward, and fluid can directly be injected in the sliding sleeve by pipeline.
Circulation sliding sleeve described in the utility model is by top connection, lower contact, and transition joint, inner sliding sleeve constitute; Top connection, transition joint, lower contact are by being threaded into a cylinder, inner sliding sleeve is the cylinder in a double headed roller hole, be positioned at the cylinder that top connection, transition joint, lower contact connect into, slide up and down between the limited step of in cylinder, establishing in top connection and the lower contact; Be provided with the groove that is communicated with inside and outside in the transition joint, pack into successively at the place, space that groove, top connection, transition joint and inner sliding sleeve form seal stopper ring, O shape circle, sealing ring catch ring, chevron, seal stopper ring and O shape circle; Pack into successively at the place, space that groove, lower contact, transition joint and inner sliding sleeve form seal stopper ring, chevron, O shape circle, seal stopper ring, O shape circle.
Circulation sliding sleeve described in the utility model improves gas lift efficiency in being applicable to that oil gas well array liquid is produced, and increases producing pressure differential, further improves recovery ratio.This instrument has been expanded the scope of application of circulation sliding sleeve, can reduce the back pressure of gas injection pressure to the stratum in gaslift technology in gas acceleration pump fit applications, also can throw in blanking plug or restriction choke, is used as seat and puts the pipe nipple use.Can be located in multiple instrument, behind seat envelope gas acceleration pump, can further reduce the back pressure of gas injection pressure, if, then can be reduced to the gas injection back pressure near zero in conjunction with adopting the enclosed gaslift to payzone.
Description of drawings
Fig. 1 shift sleeve structure schematic diagram that circulates.
Wherein: 1, groove 2, top connection 3, transition joint 4, lower contact 5, inner sliding sleeve 6, seal stopper ring 7, sealing ring catch ring 8, chevron 9, O shape circle 10, O shape circle.
The specific embodiment
Circulation sliding sleeve described in the utility model is by top connection 2, lower contact 3, and transition joint 4, inner sliding sleeve 5 constitute; Top connection 2, transition joint 3, lower contact 4 are by being threaded into a cylinder, inner sliding sleeve 5 is the cylinder in a double headed roller hole, be positioned at the cylinder that top connection 2, transition joint 3, lower contact 4 connect into, slide up and down between the limited step of in cylinder, establishing in top connection 2 and the lower contact 4; Be provided with the groove 1 that is communicated with inside and outside in the transition joint 3, pack into successively at the place, space that groove 1, top connection 2, transition joint 3 and inner sliding sleeve 5 form seal stopper ring 6, O shape circle 10, sealing ring catch ring 7, chevron 8, seal stopper ring 6 and O shape circle 10; Pack into successively at the place, space that groove 1, lower contact, transition joint 3 and inner sliding sleeve 5 form seal stopper ring 6, chevron 8, O shape circle 10, seal stopper ring 6, O shape circle 9.
Claims (1)
1. circulation sliding sleeve, by top connection, lower contact, transition joint, inner sliding sleeve constitute; It is characterized in that: top connection, transition joint, lower contact are by being threaded into a cylinder, inner sliding sleeve is the cylinder in a double headed roller hole, be positioned at the cylinder that top connection, transition joint, lower contact connect into, slide up and down between the limited step of in cylinder, establishing in top connection and the lower contact; Be provided with the groove that is communicated with inside and outside in the transition joint, pack into successively at the place, space that groove, top connection, transition joint and inner sliding sleeve form seal stopper ring, O shape circle, sealing ring catch ring, chevron, seal stopper ring and O shape circle; Pack into successively at the place, space that groove, lower contact, transition joint and inner sliding sleeve form seal stopper ring, chevron, O shape circle, seal stopper ring, O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020138354XU CN201620840U (en) | 2010-03-19 | 2010-03-19 | Circulation slide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020138354XU CN201620840U (en) | 2010-03-19 | 2010-03-19 | Circulation slide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620840U true CN201620840U (en) | 2010-11-03 |
Family
ID=43024296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020138354XU Expired - Lifetime CN201620840U (en) | 2010-03-19 | 2010-03-19 | Circulation slide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620840U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989350A (en) * | 2015-05-19 | 2015-10-21 | 中国石油天然气股份有限公司 | Injection and production integrated lifting tubing string |
| CN106593351A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Cementing sliding sleeve |
| CN108868694A (en) * | 2018-08-21 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of fracturing sliding bush |
-
2010
- 2010-03-19 CN CN201020138354XU patent/CN201620840U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989350A (en) * | 2015-05-19 | 2015-10-21 | 中国石油天然气股份有限公司 | Injection and production integrated lifting tubing string |
| CN106593351A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Cementing sliding sleeve |
| CN108868694A (en) * | 2018-08-21 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of fracturing sliding bush |
| CN108868694B (en) * | 2018-08-21 | 2020-09-04 | 中国石油天然气股份有限公司 | Fracturing sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |