CN204357408U - Sliding sleeve of bushing closing tool - Google Patents
Sliding sleeve of bushing closing tool Download PDFInfo
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- CN204357408U CN204357408U CN201420767753.0U CN201420767753U CN204357408U CN 204357408 U CN204357408 U CN 204357408U CN 201420767753 U CN201420767753 U CN 201420767753U CN 204357408 U CN204357408 U CN 204357408U
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- pawl
- sliding sleeve
- cylinder
- lower contact
- fluid cylinder
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Abstract
The utility model discloses a kind of sliding sleeve of bushing closing tool, comprise body, fluid cylinder, bullet pawl cylinder, back-moving spring and lower contact, described fluid cylinder is arranged on body, body and fluid cylinder cooperation place are provided with liquid pass hole, play pawl cylinder be connected to fluid cylinder lower end and be positioned on body outer wall, described back-moving spring is arranged on and plays in pawl cylinder, described lower contact is connected to body lower end, play pawl cylinder lower end and be provided with bullet pawl, play pawl inner conical surface to coordinate with lower contact male cone (strobilus masculinus) and makes bullet pawl overhanging, be provided with at sliding sleeve inner chamber and play pawl and embed the closedown groove coordinated.The utility model can realize sliding sleeve of bushing and selectively close, and oil gas well mining later stage water layer can be prevented to be drowned gas well, can effectively ensure that petroleum resources continues safe working.
Description
Technical field
The utility model relates to a kind of oil gas field sliding sleeve of bushing closing tool, belongs to oil-gas field downhole operation instrument.
Background technology
Sliding sleeve of bushing, as a kind of novel separate stratum fracfturing instrument, obtains abroad and develops widely and use, and in certain scope, also obtains a large amount of tests at home use, achieve good effect.The foreign study sliding sleeve of bushing time is longer, has defined comparatively perfect seriation sliding sleeve of bushing segmentation transformation instrument.The studies in China sliding sleeve of bushing time is shorter, although defined some products, key technology is ripe not enough, also there are some shortcoming and defect in application at the scene.
Patent publication No. CN202064925 U discloses separate stratum fracturing well cementation sliding sleeve, publication date 2011-12-07, comprises top connection 1, lower contact 2, ball seat 3 and controls cover 4.Top connection 1 is connected with upper sleeve, top connection 1 is connected with lower contact 2, lower contact 2 times parts casing pipes are connected, the chamber wall that top connection 1 is connected with lower contact 2 there is outer sandblasting groove 5, ball seat 3 is fixedly connected on by pin the chamber internal upper part that top connection 1 is connected with lower contact 2, ball seat 3 top wall there is sandblasting groove 6 in matching with outer sandblasting groove 5, control cover 4 and be connected to ball seat 3 lower end, control to be equipped with jump ring 7 outside cover lower end, have the draw-in groove matched with jump ring 7 in lower contact 2 bottom, jump ring 7 and the circumferential distance of draw-in groove equal outer sandblasting groove 5 and interior sandblasting groove 6 axial distance.This separate stratum fracturing well cementation sliding sleeve opens rear self-locking, can not close again, special sliding bush closing tool is not had yet, the selective closedown of separate stratum fracturing well cementation sliding sleeve can not be realized, when the oil-gas mining of well through certain hour using this separate stratum fracturing well cementation sliding sleeve to carry out storey increase design, the meeting water outlet of possible some layer of position, when water yield is larger, make this layer lose extraction value, also affect the oil-gas mining of whole mouth well possibly.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art existence, provides a kind of sliding sleeve of bushing closing tool.The utility model can realize sliding sleeve of bushing and selectively close, and oil gas well mining later stage water layer can be prevented to be drowned gas well, can effectively ensure that petroleum resources continues safe working.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of sliding sleeve of bushing closing tool, it is characterized in that: comprise body, fluid cylinder, bullet pawl cylinder, back-moving spring and lower contact, described fluid cylinder is arranged on body, body and fluid cylinder cooperation place are provided with liquid pass hole, play pawl cylinder be connected to fluid cylinder lower end and be positioned on body outer wall, described back-moving spring is arranged on and plays in pawl cylinder, described lower contact is connected to body lower end, play pawl cylinder lower end and be provided with bullet pawl, play pawl inner conical surface to coordinate with lower contact male cone (strobilus masculinus) and makes bullet pawl overhanging, be provided with at sliding sleeve inner chamber and play pawl and embed the closedown groove coordinated.
Described liquid pass hole both sides are provided with two cylinder hermetically-sealed constructions, and body and fluid cylinder are sealed and matched by two cylinder hermetically-sealed constructions.
Described lower contact is solid or hollow, when lower contact is hollow, coordinates build the pressure or form throttle orifice with the ball that builds the pressure.
Described body is hollow, and lower contact cylindrical is provided with centering edge.
The overhanging axial length of described bullet pawl is greater than 25.4mm.
Employing the utility model has the advantage of:
1, in the utility model, in pipe and when producing enough pressure reduction outside pipe, play overhanging the embedding with the closedown groove in sliding sleeve of pawl and coordinate, above carry closing tool, just can realize sliding sleeve of bushing and close, simple to operate.
2, in the utility model, pressure release in pipe, returning spring makes bullet pawl cylinder up, plays pawl and reclaims, can trip out closing tool smoothly, handled easily.
3, in the utility model, the overhanging axial length of pawl is played much larger than 25.4mm, can not be chimeric with casing coupling, prevent casing coupling from affecting sliding sleeve of bushing and close operation, success rate is high.
4, in the utility model, when lower contact is solid, produces domestic and international pressure reduction by building the pressure in managing and realize; When lower contact is hollow, produce enough chock pressure differences to realize by the hollow endoporus circulating in lower contact; When lower contact is hollow, also can matching design to build the pressure ball, being built the pressure by pitching is produced pipe inside and outside differential pressure and realizes.
5, the utility model coordinates closedown groove by design on the sliding sleeve of sliding sleeve of bushing, just can realize sliding sleeve of bushing selectively to close, oil gas well mining later stage water layer can be prevented to be drowned gas well, and structure is simple, easy to operate, can effectively ensure that petroleum resources continues safe working.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation
Fig. 2 is the utility model embodiment 2 structural representation
Fig. 3 is the utility model embodiment 3 structural representation
Fig. 4 is the structural representation of sliding sleeve of bushing
Mark in figure: 1, body, 2, fluid cylinder, 3, play pawl cylinder, 4, back-moving spring, 5, lower contact, 6, liquid pass hole, 7, play pawl, 8, sliding sleeve, 9, close groove.
Detailed description of the invention
Embodiment 1
As a better embodiment be: as shown in Figure 1 and Figure 4, mainly comprise body 1, fluid cylinder 2, bullet pawl cylinder 3, back-moving spring 4, lower contact 5, liquid pass hole 6, play pawl 7, sliding sleeve 8, close groove 9 etc., described fluid cylinder 2 is contained on body 1, described body 1 has liquid pass hole 6 with fluid cylinder 2 matching part, described bullet pawl cylinder 3 is connected to fluid cylinder 2 lower end, and described back-moving spring 4 is arranged on and plays in pawl cylinder 3, and described lower contact 5 is connected to the lower end of body 1, its endoporus is throttle orifice, and cylindrical has centering edge.
There is overhanging bullet pawl 7 described bullet pawl cylinder 3 lower end, and play pawl 7 axial length much larger than 25.4mm, the inner conical surface playing pawl 7 coordinates with the male cone (strobilus masculinus) of lower contact I 5, and the closedown groove 9 played in the sliding sleeve 8 of pawl 7 outer sleeve sliding sleeve embeds and coordinates.
Field conduct mode, the utility model tubing string is lowered into the sliding sleeve of bushing lower position that need close, turn on pump circulates, the throttle orifice of lower contact 5 inside produces choke pressure, play pawl 7 overhanging and be attached to internal surface of sleeve pipe, upper lifting pipe post, play pawl 7 along internal surface of sleeve pipe upward sliding, play pawl 7 and can pass over casing coupling, chimeric with closedown groove 9 when playing when pawl 7 slides into the closedown groove 9 of sliding sleeve 8, continue upper lifting pipe post, playing pawl 7 leads sliding sleeve 8 up, when upper lifting pipe post and larger resistance, termination of pumping, transfer tubing string one segment distance, bullet pawl 7 is allowed fully to reclaim, upper lifting pipe post, trip out sliding sleeve of bushing closing tool, sliding sleeve of bushing has been closed.This closedown Job Operations is simple, can close water layer and other useless layer, ensure the smooth exploitation of whole mouth well petroleum resources.
Embodiment 2
As another embodiment be: as shown in Figure 2 and Figure 4, mainly comprise body 1, fluid cylinder 2, bullet pawl cylinder 3, back-moving spring 4, lower contact 5, liquid pass hole 6, play pawl 7, sliding sleeve 8, close groove 9 etc., described fluid cylinder 2 is contained on body 1, described body 1 has liquid pass hole 6 with fluid cylinder 2 matching part, described bullet pawl cylinder 3 is connected to fluid cylinder 2 lower end, described back-moving spring 4 is arranged on and plays in pawl cylinder 3, described lower contact 5 is connected to the lower end of body 1, the design of its inner hole builds the pressure ball, and cylindrical has centering edge.
There is overhanging bullet pawl 7 described bullet pawl cylinder 3 lower end, and play pawl 7 axial length much larger than 25.4mm, the inner conical surface playing pawl 7 coordinates with the male cone (strobilus masculinus) of lower contact 5, and the closedown groove 9 played in the sliding sleeve 8 of pawl 7 outer sleeve sliding sleeve embeds and coordinates.
Field conduct mode, the utility model tubing string is lowered into the sliding sleeve of bushing lower position that need close, input builds the pressure ball, build the pressure the inner hole of ball and lower contact 5, build the pressure, play pawl 7 overhanging and be attached to internal surface of sleeve pipe, upper lifting pipe post, play pawl 7 along internal surface of sleeve pipe upward sliding, play pawl 7 and can pass over casing coupling, chimeric with closedown groove 9 when playing when pawl 7 slides into the closedown groove 9 of sliding sleeve 8, continue upper lifting pipe post, playing pawl 7 leads sliding sleeve 8 up, when upper lifting pipe post and larger resistance, termination of pumping pressure release, transfer tubing string one segment distance, bullet pawl 7 is allowed fully to reclaim, upper lifting pipe post, trip out sliding sleeve of bushing closing tool, sliding sleeve of bushing has been closed.Water layer and other useless layer can be closed, ensure the smooth exploitation of whole mouth well petroleum resources.
Embodiment 3
As an embodiment be again: as shown in Figure 3 and Figure 4, mainly comprise body 1, fluid cylinder 2, bullet pawl cylinder 3, back-moving spring 4, lower contact 5, liquid pass hole 6, play pawl 7, sliding sleeve 8, close groove 9 etc., described fluid cylinder 2 is contained on body 1, described body 1 has liquid pass hole 6 with fluid cylinder 2 matching part, described bullet pawl cylinder 3 is connected to fluid cylinder 2 lower end, and described back-moving spring 4 is arranged on and plays in pawl cylinder 3, and described lower contact 5 is connected to the lower end of body 1, lower contact 5 is solid, and cylindrical has centering edge.
There is overhanging bullet pawl 7 described bullet pawl cylinder 3 lower end, and play pawl 7 axial length much larger than 25.4mm, the inner conical surface playing pawl 7 coordinates with the male cone (strobilus masculinus) of lower contact 5, and the closedown groove 9 played in the sliding sleeve 8 of pawl 7 outer sleeve sliding sleeve embeds and coordinates.
Field conduct mode, the utility model tubing string is lowered into the sliding sleeve of bushing lower position that need close, build the pressure in pipe, make bullet pawl 7 overhanging and be attached to internal surface of sleeve pipe, upper lifting pipe post, play pawl 7 along internal surface of sleeve pipe upward sliding, play pawl 7 and can pass over casing coupling, chimeric with closedown groove 9 when playing when pawl 7 slides into the closedown groove 9 of sliding sleeve 8, continue upper lifting pipe post, playing pawl 7 leads sliding sleeve 8 up, when upper lifting pipe post and larger resistance, termination of pumping pressure release, transfer tubing string one segment distance, bullet pawl 7 is allowed fully to reclaim, upper lifting pipe post, trip out sliding sleeve of bushing closing tool, sliding sleeve of bushing has been closed.Also can close water layer and other useless layer, ensure the smooth exploitation of whole mouth well petroleum resources.
Embodiment 4
A kind of sliding sleeve of bushing closing tool, comprise body 1, fluid cylinder 2, play pawl cylinder 3, back-moving spring 4 and lower contact 5, described fluid cylinder 2 is arranged on body 1, body 1 and fluid cylinder 2 cooperation place are provided with liquid pass hole 6, play pawl cylinder 3 be connected to fluid cylinder 2 lower end and be positioned on body 1 outer wall, described back-moving spring 4 is arranged on and plays in pawl cylinder 3, described lower contact 5 is connected to body 1 lower end, play pawl cylinder 3 lower end and be provided with bullet pawl 7, play pawl 7 inner conical surface to coordinate with lower contact 5 male cone (strobilus masculinus) and makes bullet pawl overhanging, be provided with at sliding sleeve 8 inner chamber and play pawl 7 and embed the closedown groove 9 coordinated.
In the utility model, described liquid pass hole 6 both sides are provided with two cylinder hermetically-sealed constructions, and body 1 and fluid cylinder 2 are sealed and matched by two cylinder hermetically-sealed constructions.
In the utility model, described lower contact 5 is solid or hollow, when lower contact 5 is hollow, coordinates build the pressure or form throttle orifice with the ball that builds the pressure.
In the utility model, described body 1 is hollow, and lower contact 5 cylindrical is provided with centering edge.The overhanging axial length of described bullet pawl 7 is greater than 25.4mm.
Operating principle of the present utility model is: adopt fluid cylinder mechanism, suppress interior pressure by circulation or pitching or directly suppress interior pressure, pressure reduction is produced inside and outside sliding sleeve of bushing closing tool, fluid cylinder is made to produce end thrust, fluid cylinder moves thus compression reseting spring, promote to play pawl overhanging along the cooperation conical surface of lower contact, on carry sliding sleeve of bushing closing tool, play pawl to slide along internal surface of sleeve pipe, and by casing coupling, then pawl is played chimeric with the closedown groove on the sliding sleeve of sliding sleeve of bushing, lead the up closedown sliding sleeve of bushing of sliding sleeve, then termination of pumping, play pawl to reclaim under the effect of back-moving spring, sliding sleeve of bushing closing tool can be tripped out smoothly, simple to operate, water layer and other useless layer can be closed, ensure the smooth exploitation of whole mouth well petroleum resources.
Claims (5)
1. a sliding sleeve of bushing closing tool, it is characterized in that: comprise body (1), fluid cylinder (2), play pawl cylinder (3), back-moving spring (4) and lower contact (5), described fluid cylinder (2) is arranged on body (1), body (1) and fluid cylinder (2) cooperation place are provided with liquid pass hole (6), play pawl cylinder (3) be connected to fluid cylinder (2) lower end and be positioned on body (1) outer wall, described back-moving spring (4) is arranged on and plays in pawl cylinder (3), described lower contact (5) is connected to body (1) lower end, play pawl cylinder (3) lower end and be provided with bullet pawl (7), bullet pawl (7) inner conical surface coordinates with lower contact (5) male cone (strobilus masculinus) makes bullet pawl (7) overhanging, be provided with at sliding sleeve (8) inner chamber and play pawl (7) and embed the closedown groove (9) coordinated.
2. sliding sleeve of bushing closing tool according to claim 1, is characterized in that: described liquid pass hole (6) both sides are provided with two cylinder hermetically-sealed constructions, and body (1) and fluid cylinder (2) are sealed and matched by two cylinder hermetically-sealed constructions.
3. sliding sleeve of bushing closing tool according to claim 2, is characterized in that: described lower contact (5), for solid or hollow, when lower contact is hollow, coordinates with the ball that builds the pressure and builds the pressure or form throttle orifice.
4. sliding sleeve of bushing closing tool according to claim 3, is characterized in that: described body (1), for hollow, lower contact (5) cylindrical is provided with centering edge.
5. the sliding sleeve of bushing closing tool according to claim 1,2 or 4, is characterized in that: the axial length that described bullet pawl (7) is overhanging is greater than 25.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767753.0U CN204357408U (en) | 2014-12-09 | 2014-12-09 | Sliding sleeve of bushing closing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767753.0U CN204357408U (en) | 2014-12-09 | 2014-12-09 | Sliding sleeve of bushing closing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357408U true CN204357408U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420767753.0U Active CN204357408U (en) | 2014-12-09 | 2014-12-09 | Sliding sleeve of bushing closing tool |
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| CN (1) | CN204357408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481491A (en) * | 2014-12-09 | 2015-04-01 | 中国石油集团川庆钻探工程有限公司 | Loop-controlled tool for closing sliding sleeve in casing |
| CN104912517A (en) * | 2015-06-19 | 2015-09-16 | 上海优强石油科技有限公司 | Face-seal high-temperature sliding sleeve |
-
2014
- 2014-12-09 CN CN201420767753.0U patent/CN204357408U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481491A (en) * | 2014-12-09 | 2015-04-01 | 中国石油集团川庆钻探工程有限公司 | Loop-controlled tool for closing sliding sleeve in casing |
| CN104912517A (en) * | 2015-06-19 | 2015-09-16 | 上海优强石油科技有限公司 | Face-seal high-temperature sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |