CN104481454A - Sliding sleeve structure for permanent completion and application method thereof - Google Patents
Sliding sleeve structure for permanent completion and application method thereof Download PDFInfo
- Publication number
- CN104481454A CN104481454A CN201410745250.8A CN201410745250A CN104481454A CN 104481454 A CN104481454 A CN 104481454A CN 201410745250 A CN201410745250 A CN 201410745250A CN 104481454 A CN104481454 A CN 104481454A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- movable sliding
- well completion
- ball seat
- resistance groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
Abstract
The invention discloses a sliding sleeve structure for permanent completion and an application method thereof. An upper connector and a lower connector are fixedly connected to upper and lower ends of a body, respectively. The body is provided with a jet channel. A movable sliding sleeve disposed within the body closes the jet channel and is connected to the body through a pin. A claw hook is arranged at the upper end of the movable sliding sleeve. The inner wall of the movable sliding sleeve is provided with a closing groove matching with a closing tool. An easy-drilling ball seat is fixed to the lower portion of the movable sliding sleeve. An inner cavity of the body is provided with a first resistance groove and a second resistance groove matching with the claw hook; the first resistance groove and the second resistance groove are provided in the upper and lower portions of the jet channel, respectively. A self-locking mechanism is used for locking the movable sliding sleeve and the body when a sectional optimizing sliding sleeve is open. The sliding sleeve structure has the advantages that a string sliding sleeve for permanent completion can be opened smoothly, reliable opening of the sliding sleeve and normal production of oil and gas are guaranteed, and the sliding sleeve can be selectively closed to close an aquifer and a waste layer according to late specific conditions of a reservoir.
Description
Technical field
The present invention relates to a kind of permanent well completion shift sleeve structure and using method thereof, belong to oil-gas field downhole operation technical field of tools.
Background technology
When carrying out oil-gas field development, often using various sliding sleeve to coordinate other instrument to form permanent well completion tubing string again and carrying out storey increase design construction and exploitation.Such as, the typical permanent well completion tubing string of the disclosed high gas rate well of 2004-12-30 " oil and gas well testing ".
Sliding sleeve is very important underground operation tool in this permanent well completion tubing string.At present, permanent well completion sliding sleeve mainly contains 2 kinds: a kind of sliding sleeve open after its movable sliding sleeve self-locking, can not because of return discharge opeing eliminating and oil-gas mining or tubing string by sliding sleeve time, sliding sleeve is closed by mistake, ensures that sliding sleeve is opened reliable, oil gas and normally exploited; A kind of sliding sleeve opens its movable sliding sleeve not self-locking rear, and part can use special tool to realize the selective closedown of sliding sleeve, can prevent oil and gas reservoir large volume production water logging dead oil gas well after transforming and producing.
These two kinds of sliding sleeves have respective advantage, but also there is respective deficiency: the sliding sleeve of energy self-locking can not realize selective closedown, when the large volume production water of this reservoir, sometimes will affect the oil gas output of other reservoir, even drowned whole mouth Oil/gas Well; Although the sliding sleeve of not self-locking can selective closedown, after this sliding sleeve is opened, movable sliding sleeve can be free to slide, and sometimes because returning passing through of tubing string in discharge opeing eliminating, oil-gas mining or sliding sleeve, making sliding sleeve close by mistake, causing oil gas normally not produce.
Summary of the invention
The object of the invention is to the problems referred to above overcoming prior art existence, a kind of permanent well completion shift sleeve structure and using method thereof are provided.The present invention can not only realize the smooth unlatching of permanent well completion tubing string sliding sleeve, ensure that sliding sleeve is opened reliably and oil gas is normally produced, the concrete condition in later stage can also be exploited according to reservoir, selective closedown sliding sleeve, close water layer and useless layer, prevent water layer and useless layer from affecting the smooth exploitation of other oil and gas reservoir and whole mouth well petroleum resources.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of permanent well completion shift sleeve structure, it is characterized in that: comprise top connection, body, movable sliding sleeve, easy brill ball seat, lower contact and self-locking mechanism, described top connection and lower contact are fixedly connected on the two ends up and down of body respectively, body is provided with spray tank, movable sliding sleeve is positioned at body inner sealing spray tank, and be connected on body by pin, described movable sliding sleeve upper end is provided with and plays pawl hook, movable sliding sleeve inwall is provided with the closedown groove coordinated with closing tool, easy brill ball seat is fixedly installed on movable sliding sleeve bottom, chamber body is provided with and plays pawl and link up with the first resistance groove and the second resistance groove that coordinate, first resistance groove and the second resistance groove lay respectively at spray tank upper and lower, self-locking mechanism is used for locking activity sliding sleeve and body when segmentation transformation sliding sleeve is opened.
Described easy brill ball seat be provided with the connection swivel nut coordinated with lower contact between body, and connect swivel nut and be connected to the lower end of movable sliding sleeve by easy brill ball seat.
The retaining screw thread that described self-locking mechanism comprises retaining ring and coordinates with retaining ring, retaining ring is arranged on movable sliding sleeve and connects between swivel nut, and retaining screw thread is arranged on the lower end of chamber body.
The internal diameter of described top connection, movable sliding sleeve, retaining ring, connection swivel nut, lower contact is consistent with the internal diameter of permanent well completion pipe.
Described connection swivel nut lower end is provided with embedding tooth, and lower contact upper end correspondence is provided with embedding tooth.
It is adaptive that described easy brill ball seat internal diameter and sliding sleeve open ball.
A kind of using method of permanent well completion shift sleeve structure, it is characterized in that: shift sleeve structure is connected to position permanent well completion tubing string needing to carry out segmentation transformation, in lower going-into-well, first cementing practice Hou Ning, after cement slurry sets, to be built the pressure by pitching from well head and open sliding sleeve, carry out continuously segmentation storey increase design construction step by step; After sliding sleeve is opened, movable sliding sleeve is locked by self-locking mechanism and body.
When the reservoir of described storey increase design needs again to carry out storey increase design, bore except easily boring ball seat, after easily brill ball seat brill removes, the self-locking releasing of movable sliding sleeve and body, the bullet pawl hook of movable sliding sleeve upper end is chimeric with the second resistance groove in chamber body, prevent from managing interior instrument and tubing string by time hang to touch and close sliding sleeve by mistake, then enter down corresponding segmentation card layer tool tubular column as required, again storey increase design carried out to specific reservoir.
After described storey increase design, through exploitation, when reservoir produces water, under enter closing tool, the closedown groove fit in the manipulator of closing tool and movable sliding sleeve, on carry closing tool, the bullet pawl on movable sliding sleeve top is linked up with and leaves the second resistance groove, the up closedown sliding sleeve of movable sliding sleeve, the bullet pawl hook on movable sliding sleeve is chimeric with the first resistance groove, prevent from managing interior instrument and tubing string by time hang to touch and open sliding sleeve by mistake, realize selective effective closedown sliding sleeve.
Employing the invention has the advantages that:
1, the present invention can not only realize the smooth unlatching of permanent well completion tubing string sliding sleeve, ensure that sliding sleeve is opened reliably and oil gas is normally produced, the concrete condition in later stage can also be exploited according to reservoir, selective closedown sliding sleeve, close water layer and useless layer, prevent water layer and useless layer from affecting the smooth exploitation of other oil and gas reservoir and whole mouth well petroleum resources.
2, in the present invention, sliding sleeve is opened by opening ball, and can realize accurately multistage segmentation transformation continuously, operation is simple, easy to operate.
3, in the present invention, after sliding sleeve unlatching, energy self-locking, will cause movable sliding sleeve to close because of return discharge opeing, the gas stream etc. of bottom reservoir, ensures that sliding sleeve is opened reliable.
4, in the present invention, easily brill ball seat easily bores and removes, and bores after removing, movable sliding sleeve self-locking releasing, the selective closedown sliding sleeve of available closing tool, is convenient to close water layer and useless layer, prevents water layer to be drowned Oil/gas Well.
5, in the present invention, after easily brill ball seat bores and removes, realize sliding sleeve full-bore, further storey increase design can be carried out to reservoir, improve the rate of oil and gas recovery.
6, in the present invention, in closedown and open mode, even if easily bore after ball seat bores and remove, have Fitting resistance between movable sliding sleeve and body, can prevent managing interior oil gas, return discharge opeing and tubing string by time cause movable sliding sleeve to move, avoid sliding sleeve to open by mistake and miss pass.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the closing tool structural representation adopted in the present invention
Be labeled as in figure: 1, top connection, 2, body, 3, movable sliding sleeve, 4, easily bore ball seat, 5, pin, 6, retaining ring, 7, connect swivel nut, 8, lower contact, 9, play pawl hook, the 10, first resistance groove, 11, close groove, 12, the second resistance groove, 13, retaining screw thread, 14, closing tool body, 15, fluid cylinder, 16, play pawl cylinder, 17, back-moving spring, 18, closing tool lower contact, 19, liquid pass hole, 20, play pawl.
Detailed description of the invention
Embodiment 1
A kind of permanent well completion shift sleeve structure, comprise top connection 1, body 2, movable sliding sleeve 3, easy brill ball seat 4, lower contact 8 and self-locking mechanism, described top connection 1 and lower contact 8 are fixedly connected on the two ends up and down of body 2 respectively, body 2 is provided with spray tank, movable sliding sleeve 3 is positioned at body 2 inner sealing spray tank, and be connected on body 2 by pin 5, described movable sliding sleeve 3 upper end is provided with and plays pawl hook 9, movable sliding sleeve 3 inwall is provided with the closedown groove 11 coordinated with closing tool, easy brill ball seat 4 is fixedly installed on movable sliding sleeve 3 bottom by screw thread, body 2 inner chamber is provided with and plays pawl and link up with 9 the first resistance groove 10 and the second resistance grooves 12 coordinated, first resistance groove 10 and the second resistance groove 12 lay respectively at spray tank upper and lower, self-locking mechanism is used for locking activity sliding sleeve 3 and body 2 when segmentation transformation sliding sleeve is opened.
In the present embodiment, described easy brill ball seat 4 be provided with the connection swivel nut 7 coordinated with lower contact between body 2, and connect swivel nut 7 by easily boring the lower end that ball seat 4 is connected to movable sliding sleeve 3.
In the present embodiment, the retaining screw thread 13 that described self-locking mechanism comprises retaining ring 6 and coordinates with retaining ring 6, retaining ring 6 is arranged on movable sliding sleeve 3 and connects between swivel nut 7, and retaining screw thread 13 is arranged on the lower end of body 2 inner chamber.
In the present embodiment, the internal diameter of described top connection 1, movable sliding sleeve 3, retaining ring 6, connection swivel nut 7, lower contact 8 is consistent with the internal diameter of permanent well completion pipe.
In the present embodiment, described connection swivel nut 7 lower end is provided with embedding tooth, and lower contact 8 upper end correspondence is provided with embedding tooth.
In the present embodiment, it is adaptive that described easy brill ball seat 4 internal diameter and sliding sleeve open ball.Easy brill ball seat in the present invention refers to can the ball seat that removes of quick drill.
Embodiment 2
A kind of using method of permanent well completion shift sleeve structure, shift sleeve structure is connected to position permanent well completion tubing string needing to carry out segmentation transformation, in lower going-into-well, first cementing practice Hou Ning, after cement slurry sets, to be built the pressure by pitching from well head and open sliding sleeve, carry out continuously segmentation storey increase design construction step by step; After sliding sleeve is opened, movable sliding sleeve is locked by self-locking mechanism and body.
When the reservoir of described storey increase design needs again to carry out storey increase design, bore except easily boring ball seat, after easily brill ball seat brill removes, the self-locking releasing of movable sliding sleeve and body, the bullet pawl hook of movable sliding sleeve upper end is chimeric with the second resistance groove in chamber body, prevent from managing interior instrument and tubing string by time hang to touch and close sliding sleeve by mistake, then enter down corresponding segmentation card layer tool tubular column as required, again storey increase design carried out to specific reservoir.
After described storey increase design, through exploitation, when reservoir produces water, under enter closing tool, the closedown groove fit in the manipulator of closing tool and movable sliding sleeve, on carry closing tool, the bullet pawl on movable sliding sleeve top is linked up with and leaves the second resistance groove, the up closedown sliding sleeve of movable sliding sleeve, the bullet pawl hook on movable sliding sleeve is chimeric with the first resistance groove, prevent from managing interior instrument and tubing string by time hang to touch and open sliding sleeve by mistake, realize selective effective closedown sliding sleeve.
Adopt the present invention, the construction of permanent well completion tubing string multistage liaison accurate segmentation storey increase design can be realized; After sliding sleeve unlatching, energy self-locking, prevents tube fluid from washing away and closes sliding sleeve by mistake; Easy brill ball seat energy quick drill removes, and realizes full-bore, again can carry out storey increase design construction to reservoir; After easy brill ball seat bores and removes, movable sliding sleeve self-locking releasing, alternative closedown water layer; Easy brill ball seat bores except after rear and the selective closedown of sliding sleeve, has Fitting resistance between movable sliding sleeve and body, can prevent from hanging in tubing string touching switching sliding sleeve by mistake, ensures that this sliding sleeve opens and closes reliable.
Concrete operation in the present invention is as cementing practice and Hou Ning, continuous segmentation storey increase design, again storey increase design step by step etc. adopt prior art.
Embodiment 3
Below in conjunction with Figure of description, the present invention is described in further detail.
As a better embodiment of the present invention: as shown in Figure 1, the present invention mainly comprises top connection 1, body 2, movable sliding sleeve 3, easily bores ball seat 4, pin 5, retaining ring 6, connects swivel nut 7, lower contact 8 etc.Described top connection 1 and lower contact 8 are threaded connection the two ends up and down at body 2, spray tank is arranged at the top of described body 2, described movable sliding sleeve 3 is positioned at body interior spray tank place, be connected on body 2 by pin 5, described connection swivel nut 7 is by easily boring the lower end that ball seat 4 is connected to movable sliding sleeve 3, and described retaining ring 6 is arranged on movable sliding sleeve 3 and connects between swivel nut 7.
Described body 2 inner chamber, on spray tank and below position have the first resistance groove 10, second resistance groove 12 respectively, have retaining screw thread 13 in the lower end of chamber body.There is overhanging bullet pawl hook 9 upper end of described movable sliding sleeve 3, and movable sliding sleeve 3 inwall has the closedown groove 11 coordinated with closing tool.
The internal diameter of described easy brill ball seat 4 is opened ball with sliding sleeve and is coordinated.Described connection swivel nut 7 lower end and lower contact 8 upper end have and embed tooth and coordinate.The internal diameter of described top connection 1, movable sliding sleeve 3, retaining ring 6, connection swivel nut 7, lower contact 8 is consistent with the internal diameter of permanent well completion tubing string.
Site operation program, is connected to this invention position permanent well completion tubing string needing to carry out segmentation transformation, and 1 mouthful of well can use multiple, in lower going-into-well, and first cementing practice Hou Ning.After cement slurry sets, to be built the pressure by pitching from well head and cut off pin, movable sliding sleeve, easily bore ball seat, retaining ring and be connected swivel nut and move downward together, open spray tank, thus open sliding sleeve, accurate segmentation storey increase design construction step by step can be carried out continuously.After sliding sleeve is opened, movable sliding sleeve 3, by retaining screw thread 13 self-locking of retaining ring 6 with body 2 bottom, ensures that sliding sleeve is opened reliable, can not close by mistake, realize the smooth exploitation of this reservoir hydrocarbons resource.
Embodiment 4
As another embodiment of the present invention, when the reservoir using the present invention to carry out storey increase design needs again to carry out storey increase design, connection swivel nut 7 embeds lower contact 8, realizes easily boring ball seat 4 anti-rotation, can bore ball seat 4 by quick drill, realize full-bore except easy.After easily brill ball seat 4 brill removes, movable sliding sleeve 3 and retaining ring 6 with connect swivel nut 7 and be separated, the self-locking releasing of movable sliding sleeve 3 and body 2, but the bullet pawl of movable sliding sleeve 3 upper end hook 9 chimericly with the second resistance groove 12 on body 2 inner chamber produces resistance, prevent from managing interior instrument and tubing string by time extension touch and close sliding sleeve by mistake.Then can enter down corresponding segmentation card layer tool tubular column as required, again storey increase design is carried out to specific reservoir, thus improve the rate of oil and gas recovery, improve the service efficiency of well to greatest extent.
Embodiment 5
As another embodiment of the invention, after use the present invention carries out storey increase design, after exploitation, presumable reservoir can produce water, this layer loses extraction value, and this water yield formation can affect the normal exploitation of other oil and gas reservoir sometimes, even makes whole mouth well lose extraction value.When this happens, closing tool can be entered down, the manipulator of closing tool and the bullet pawl of special tool coordinate with the closedown groove 11 of movable sliding sleeve 3 inside, on carry closing tool, make the bullet pawl on movable sliding sleeve 3 top link up with 9 and leave the second resistance groove 12 on body 2, movable sliding sleeve 3 is up, close spray tank, close sliding sleeve, simultaneously, bullet pawl hook 9 on movable sliding sleeve 3 is chimeric with the first resistance groove 10 on body 2 top, prevent from managing interior instrument and tubing string by time hang to touch and open sliding sleeve by mistake, realize selective effective closedown sliding sleeve, prevent the formation water of this layer from entering pit shaft, ensure the safe working of this well petroleum resources.
Embodiment 6
The present embodiment is described the closing tool adopted in the present invention.
Closing tool, comprise closing tool body 14, fluid cylinder 15, play pawl cylinder 16, back-moving spring 17 and closing tool lower contact 19, described fluid cylinder 15 is arranged on closing tool body 14, closing tool body 14 and fluid cylinder 15 cooperation place are provided with liquid pass hole 19, play pawl cylinder 16 be connected to fluid cylinder 15 lower end and be positioned on closing tool body 14 outer wall, described back-moving spring 17 is arranged on and plays in pawl cylinder 16, described closing tool lower contact 18 is connected to closing tool body 14 lower end, play pawl cylinder 16 lower end and be provided with bullet pawl 20, bullet pawl 20 inner conical surface coordinates with closing tool lower contact 18 male cone (strobilus masculinus) makes bullet pawl 20 overhanging, be provided with at movable sliding sleeve inner chamber and play pawl 20 and embed the closedown groove 11 coordinated.
Liquid pass hole 19 both sides are provided with two cylinder hermetically-sealed constructions, and closing tool body 14 and fluid cylinder 15 are sealed and matched by two cylinder hermetically-sealed constructions.Described closing tool lower contact 18 is solid or hollow, when closing tool lower contact is hollow, coordinates build the pressure or form throttle orifice with the ball that builds the pressure.Described closing tool body 14 is hollow, and closing tool lower contact 18 cylindrical is provided with centering edge.The overhanging axial length of described bullet pawl is greater than 25.4mm.
The operating principle of closing tool 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 closing tool 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 movable sliding sleeve of sliding sleeve of bushing, lead the up closedown sliding sleeve of bushing of movable 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 (9)
1. a permanent well completion shift sleeve structure, it is characterized in that: comprise top connection (1), body (2), movable sliding sleeve (3), easy brill ball seat (4), lower contact (8) and self-locking mechanism, described top connection (1) and lower contact (8) are fixedly connected on the two ends up and down of body (2) respectively, body (2) is provided with spray tank, movable sliding sleeve (3) is positioned at body (2) inner sealing spray tank, and be connected on body by pin (5), described movable sliding sleeve (3) upper end is provided with and plays pawl hook (9), movable sliding sleeve (3) inwall is provided with the closedown groove (11) coordinated with closing tool, easy brill ball seat (4) is fixedly installed on movable sliding sleeve (3) bottom, body (2) inner chamber is provided with and plays pawl and link up with the first resistance groove (10) and the second resistance groove (12) that (9) coordinate, first resistance groove (10) and the second resistance groove (12) lay respectively at spray tank upper and lower, self-locking mechanism is used for locking activity sliding sleeve (3) and body (2) when segmentation transformation sliding sleeve is opened.
2. permanent well completion shift sleeve structure according to claim 1, it is characterized in that: described easy brill ball seat (4) be provided with the connection swivel nut (7) coordinated with lower contact (8) between body (2), and connect swivel nut (7) by easily boring the lower end that ball seat (4) is connected to movable sliding sleeve (3).
3. permanent well completion shift sleeve structure according to claim 2, it is characterized in that: the retaining screw thread (13) that described self-locking mechanism comprises retaining ring (6) and coordinates with retaining ring (6), retaining ring (6) is arranged on movable sliding sleeve (3) and connects between swivel nut (7), and retaining screw thread (13) is arranged on the lower end of body (2) inner chamber.
4. permanent well completion shift sleeve structure according to claim 3, is characterized in that: the internal diameter of described top connection (1), movable sliding sleeve (3), retaining ring (6), connection swivel nut (7), lower contact (8) is consistent with the internal diameter of permanent well completion pipe.
5. the permanent well completion shift sleeve structure according to claim 2,3 or 4, is characterized in that: described connection swivel nut (7) lower end is provided with embedding tooth, and lower contact (8) upper end correspondence is provided with embedding tooth.
6. permanent well completion shift sleeve structure according to claim 5, is characterized in that: it is adaptive that described easy brill ball seat (4) internal diameter and sliding sleeve open ball.
7. the using method of a kind of permanent well completion shift sleeve structure according to claim 1, it is characterized in that: shift sleeve structure is connected to position permanent well completion tubing string needing to carry out segmentation transformation, in lower going-into-well, first cementing practice Hou Ning, after cement slurry sets, to be built the pressure by pitching from well head and open sliding sleeve, carry out continuously segmentation storey increase design construction step by step; After sliding sleeve is opened, movable sliding sleeve is locked by self-locking mechanism and body.
8. the using method of permanent well completion shift sleeve structure according to claim 7, it is characterized in that: when the reservoir of described storey increase design needs again to carry out storey increase design, bore except easily boring ball seat, after easily brill ball seat brill removes, the self-locking releasing of movable sliding sleeve and body, the bullet pawl hook of movable sliding sleeve upper end is chimeric with the second resistance groove in chamber body, prevent from managing interior instrument and tubing string by time hang to touch and close sliding sleeve by mistake, then enter down corresponding segmentation card layer tool tubular column as required, again storey increase design is carried out to specific reservoir.
9. the using method of a kind of permanent well completion shift sleeve structure according to claim 7 or 8, it is characterized in that: after described storey increase design, through exploitation, when reservoir produces water, under enter closing tool, closedown groove fit in the manipulator of closing tool and movable sliding sleeve, on carry closing tool, the bullet pawl on movable sliding sleeve top is linked up with and leaves the second resistance groove, the up closedown sliding sleeve of movable sliding sleeve, bullet pawl hook on movable sliding sleeve is chimeric with the first resistance groove, prevent from managing interior instrument and tubing string by time hang to touch and open sliding sleeve by mistake, realize selective effective closedown sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745250.8A CN104481454B (en) | 2014-12-09 | 2014-12-09 | Permanent well completion shift sleeve structure and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745250.8A CN104481454B (en) | 2014-12-09 | 2014-12-09 | Permanent well completion shift sleeve structure and its application method |
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| Publication Number | Publication Date |
|---|---|
| CN104481454A true CN104481454A (en) | 2015-04-01 |
| CN104481454B CN104481454B (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410745250.8A Active CN104481454B (en) | 2014-12-09 | 2014-12-09 | Permanent well completion shift sleeve structure and its application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494273A (en) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | Well completion pipe string and production pipe string of electric pump oil production well and construction method of well completion pipe string and production pipe string |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8256538B1 (en) * | 2011-11-10 | 2012-09-04 | John Mayn Deslierres | Containment system for oil field riser pipes |
| CN202914064U (en) * | 2012-11-16 | 2013-05-01 | 西安鼎盛石油科技有限责任公司 | Ball injection sliding sleeve applied to oil-gas well staged fracturing selective switch |
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
| CN203321478U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Switch fracturing slide bush |
-
2014
- 2014-12-09 CN CN201410745250.8A patent/CN104481454B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8256538B1 (en) * | 2011-11-10 | 2012-09-04 | John Mayn Deslierres | Containment system for oil field riser pipes |
| CN202914064U (en) * | 2012-11-16 | 2013-05-01 | 西安鼎盛石油科技有限责任公司 | Ball injection sliding sleeve applied to oil-gas well staged fracturing selective switch |
| CN203321478U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Switch fracturing slide bush |
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494273A (en) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | Well completion pipe string and production pipe string of electric pump oil production well and construction method of well completion pipe string and production pipe string |
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| CN104481454B (en) | 2017-07-14 |
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Effective date of registration: 20200917 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. |
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