CN107366521A - A kind of sand control control neatly set and its switching device - Google Patents
A kind of sand control control neatly set and its switching device Download PDFInfo
- Publication number
- CN107366521A CN107366521A CN201610312937.1A CN201610312937A CN107366521A CN 107366521 A CN107366521 A CN 107366521A CN 201610312937 A CN201610312937 A CN 201610312937A CN 107366521 A CN107366521 A CN 107366521A
- Authority
- CN
- China
- Prior art keywords
- outer tube
- leading screw
- sand
- control
- opening
- 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.)
- Pending
Links
Classifications
-
- 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
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Abstract
The present invention provides a kind of sand control control neatly set, including：Outer tube, which is provided with opening, and the inwall of the first end of the outer tube is provided with internal thread；Leading screw, in the outer tube, its outer wall is provided with the first external screw thread being meshed with first internal thread, axial direction of the leading screw along the outer tube is moved up and down；Inner sleeve is sealed, is set in the leading screw outer wall, and is moved up and down with axial direction of the leading screw along the outer tube, for opening or closing the opening on the outer tube.The present invention also provides a kind of switching device of sand control control neatly set, including：Fixture, for fixing the outer tube or the second joint of the sand control control neatly set；Revolving part, for fixing the leading screw and driving its rotation.The present invention is simple in construction, can be achieved to open and close infinitely by the rotation of leading screw, so as to realize the unlimited pole sectional well completion of shale oil gas, tight sand oil gas horizontal well, pressure break early stage and later stage control water, so as to improve oil gas well recovery.
Description
Technical field
The present invention relates to the completion of Oil/gas Well and production technical field, more particularly to a kind of sand control control neatly
Set and its switching device, for horizontal well in segments completion, staged fracturing and the aquatic production of control.
Background technology
With the exploration and development of the unconventional petroleum resourceses such as shale gas, shale oil, staged fracturing of horizontal well
Renovation technique is effectively implemented.Reservoir fracturing improvement technology is by levels such as shale oil gas, tight stratums
Well is divided into multistage, and then formation breakdown is expanded the drainage area of layer of oil gas production, carried into many cracks
The high rate of oil and gas recovery, so as to improve well yield.Horizontal well bore hole staged fracturing technology is reservoir fracturing
One kind and unconventionaloil pool field widely popularization and application at home and abroad in transformation, wherein, pass through sliding sleeve
Flow channels are established with each section of interval.Different layers position can be carried out by detail design in this technology
Pressure break, the sliding sleeve instrument for establishing flow channels in completion tubular column with stratum is one of key technology.
The multistage pitching sliding sleeve that current sectional well completion is mainly used with sliding sleeve, using different low of diameter
Density pressure break ball is suppressed so as to control the unlatching of each section of sliding sleeve after being shipped to sliding sleeve tee by well head, from
And multistage piecewise separate stratum fracfturing is realized, there is the advantages of easy for construction, at present 7 " × 41/2" set
Pipe realizes maximum 25 grades of partial pressure series, 95/8″×51/2" sleeve pipe realizes maximum 30 grades of partial pressure series,
Ball sealer differential 0.125 ", newest have been carried out 1/16 at present " it is differential.
Problems be present in multistage pitching sliding sleeve：1) there must be by pressure break ball and ball seat certain differential
Limitation, unlimited pole staged fracturing can not be realized；2) sliding sleeve can only can not be closed by hydraulic open,
It is uncontrollable after Oil/gas Well water outlet；3) pressure break ball exists and influenceed by medium in pit shaft, can not be effective
Sealed ball seat, can not effectively it open sometimes；4) ball seat of sliding sleeve, make completion tubular column latus rectum smaller, after
Phase operation is difficult.
The content of the invention
The features and advantages of the present invention are partly stated in the following description, or can be shown from the description
And be clear to, or can be learnt by putting into practice the present invention.
Technical scheme is as follows used by the present invention solves above-mentioned technical problem：
According to an aspect of the present invention, there is provided a kind of sand control control neatly set, it is characterised in that including：
Outer tube, which is provided with opening, and the inwall of the first end of the outer tube is provided with internal thread；Silk
Thick stick, in the outer tube, its outer wall is provided with outside first to be meshed with first internal thread
Screw thread, axial direction of the leading screw along the outer tube is set to move up and down；Inner sleeve is sealed, is set in institute
Leading screw outer wall is stated, and is moved up and down with axial direction of the leading screw along the outer tube, for playing on or off
The opening closed on the outer tube.
According to one embodiment of present invention, the opening is multiple, along the circumference of the outer tube
Set.
According to one embodiment of present invention, the outside of the leading screw is provided with fin, and the one of the leading screw
End is provided with first and scrapes sand ring, it is described seal inner sleeve and be located at the fin and first scrape between sand ring.
According to one embodiment of present invention, in addition to rolling bearing, be arranged on the sealing inner sleeve with
Between the fin and the sealing inner sleeve and described first is scraped between sand ring.
According to one embodiment of present invention, in addition to second scrapes sand ring, is arranged on the another of the leading screw
One end.
According to one embodiment of present invention, in addition to two groups of density circles, it is separately positioned on the sealing
The both ends of inner sleeve.
According to one embodiment of present invention, the spacing between two groups of sealing rings is more than the circulation
The length in hole.
According to one embodiment of present invention, the leading screw is in hollow tube-shape.
According to one embodiment of present invention, in addition to：First joint, internal thread is which is provided with, used
It is connected in the first end with the outer tube；Second joint, which is provided with external screw thread, for it is described
Second end of outer tube is connected；It is close that second is provided with the junction of second joint and the outer tube
Seal, the first sealing ring is provided with the junction of first joint and the outer tube.
According to another aspect of the present invention, there is provided a kind of switching device of sand control control neatly set, be used for
The sand control control neatly set provided according to present invention one side is provided, it is characterised in that including：
Fixture, for fixing the outer tube or the second joint of the sand control control neatly set；Revolving part, it is used for
The fixed leading screw simultaneously drives its rotation.
It is simple in construction the invention provides a kind of sand control control neatly set and its switching device, pass through leading screw
Rotation can be achieved to open and close infinitely, so as to realize that shale oil gas, tight sand oil gas are horizontal
The unlimited pole sectional well completion of well, pressure break early stage and later stage control water, so as to improve oil gas well recovery.
By reading specification, these technical schemes will be best understood in those of ordinary skill in the art
Feature and content.
Brief description of the drawings
The present invention, advantages of the present invention and reality are specifically described below with reference to accompanying drawing and with reference to example
Existing mode will be more obvious, and content is only used for explanation of the present invention wherein shown in accompanying drawing, and
Do not form to the present invention in all senses on limitation, in the accompanying drawings：
Fig. 1 is the half-section diagram that the sand control control neatly of the embodiment of the present invention covers.
Embodiment
As shown in figure 1, the present invention provides a kind of sand control control neatly set, including outer tube 10 and it is located at
First joint 50 and the second joint 60 at the both ends of outer tube 10；Wherein, the first joint 50 passes through interior spiral shell
Line 51 is connected with the first end of outer tube 10, and the second joint 60 passes through external screw thread 61 and outer tube 10
Second close to even.Preferably, it is close provided with first in the junction of the first joint 50 and outer tube 10
Seal 53, the second sealing ring 63 is provided with the junction of the second joint 60 and outer tube 10.Outer tube
10 are provided with opening 13, in the present embodiment, opening 13 be it is multiple, such as 6 to 10, edge
The circumference of outer tube 10 is uniformly arranged.
Being provided with outer tube 10 can be along the leading screw 20 that it is axially moved up and down, and leading screw 20 is in hollow
Shape.Specifically, first internal thread 11 is set in the first end of outer tube 10, in the outer wall of leading screw 20
It is provided with the first external screw thread 21 being meshed with first internal thread 11；The length of first external screw thread 21
More than the length of the first internal thread 11, so that leading screw 20 can be by rotating along the axial direction of outer tube 10
Move up and down.Also include sealing inner sleeve 30, be set in the outer wall of leading screw 20, and with leading screw 20 along outer
The axial direction of sleeve pipe 10 moves up and down, for opening or closing the opening 13 on outer tube.More specifically,
The outside of leading screw 20 is provided with fin 22, and sand ring 41 is scraped in one end of leading screw provided with first, and seals inner sleeve
30, which are located in the fin 22 and first, scrapes between sand ring 41.Preferably, in addition to rolling bearing 31,
It is arranged on two end faces of sealing inner sleeve 30, more specifically, rolling bearing 31 is arranged in sealing
Set 30 and fin 22 between and sealing inner sleeve 30 and first scrape sand ring 41 between, for reducing silk
Frictional resistance when thick stick rotates.Sand ring 42 also is scraped including second, is arranged on the other end of leading screw 20, the
One scrapes sand ring 41 and when the second setting for scraping sand ring 42 can prevent closedown sliding sleeve in sand card or abradable seal
Set 30.
Usually, when the first internal thread 11 on the bottom of the external screw thread 21 of leading screw 20 first and outer tube
When bottom is alignd, the opening 13 on outer tube can be by the security seal of sealing inner sleeve 30；When leading screw 20
When rotation is moved down and (moved towards the direction of the first joint), sealing inner sleeve 30 can be with leading screw 20
Move down, so that the opening 13 on outer tube is in partially opening or full opening of state.It is close to make
The sealing to opening 13 is better achieved in envelope inner sleeve 30, can set two groups of density circles 33, respectively
It is more than opening 13 positioned at the spacing between the both ends of sealing inner sleeve 30, two groups of sealing rings 33
Length, when it is implemented, the spacing can bigger than the length of opening 13 5 to 100mm, to ensure
Opening when closed can Close All.
When assembling above-mentioned sand control control neatly set, first outer tube 10 can be connected with the first joint 50,
Scrape sand ring 42, leading screw 20, sealing inner sleeve 30, rolling bearing 31 by second successively again and first strike-off
Ring 41 assembles, and loads in outer tube 10；Wherein, the first external screw thread 21 and overcoat of leading screw 20
The first internal thread of pipe 11 is meshed, and the first external screw thread aligns with the bottom of the first internal thread, makes overcoat
Opening 13 on pipe is by the security seal of sealing inner sleeve 30；Finally, outer sleeve for connecting and the second joint
60。
The present invention also provides a kind of switching device of sand control control neatly set, for opening above-mentioned sand control control water
Sliding sleeve, including：Fixture, for fixing the joint 60 of outer tube 10 or second of sand control control neatly set；
Revolving part, for fixing leading screw 20 and driving its rotation.In the specific implementation, fixture and revolving part
It may each be telescopic and grab shape structure；Unlike, each grab grabbed in shape structure of fixture is in
Arc, fitted with the outer surface of the joint 60 of outer tube 10 or second；And revolving part grabs shape structure
In each grab linear, its end is provided with contact face, for the hollow wall phase with leading screw 20
Contact, and with the hollow wall close-fitting of leading screw 20；The contact face can be being connect with increase for out-of-flatness
Contacting surface is accumulated.Under sealing inner sleeve 30 by the rotational movement leading screw 20 of revolving part and thereon rotates
Move, open opening 13, connect inside and outside sliding sleeve, realize pressure break；During closedown sliding sleeve, rotation is reversely rotated
Turn part motion.Wherein, the rotation of revolving part can be pumped by cable and carried out.
The present invention provides a kind of sand control control neatly set, for horizontal well in segments completion, by cementing the well and sliding
The switch of set carries out sectional well completion, realizes unlimited pole sectional well completion, and the present invention is expired by sleeve pipe full-bore
Sufficient huge discharge pressing crack construction requirement；Separate interval by cementing the well, the staged fracturing of any section can be achieved；
By sealing the repeat switch of inner sleeve, segmentation control water function is realized.The present invention also passes through the sand control control water
The switching tools of sliding sleeve, transmitting switch sliding sleeve is pumped by cable, construction is quickly carried out continuously；
Heat resisting and pressure resisting of the present invention is high, simple and reliable process, and completion cost is low.
Rotation is passed through using special opening-closing tool above by reference to the preferred embodiments of the present invention have been illustrated
Motion band movable sealing sleeve is axially moved with respect to overcoat, realizes the opening and closing of switching sliding sleeve,
Those skilled in the art do not depart from the scope of the present invention and essence, can have a variety of flexible programs to realize this
Invention.For example, the feature as the shown partially of one embodiment or description can be used for another reality
Example is applied to obtain another embodiment.It these are only preferably feasible embodiment of the invention, and unprovoked
The interest field of this limitation present invention, all equivalent changes made with description of the invention and accompanying drawing content
Change, be both contained within the interest field of the present invention.
Claims (10)
- A kind of 1. sand control control neatly set, it is characterised in that including：Outer tube, which is provided with opening, and the inwall of the first end of the outer tube is provided with internal thread；Leading screw, in the outer tube, its outer wall is provided with what is be meshed with first internal thread First external screw thread, axial direction of the leading screw along the outer tube is set to move up and down；Inner sleeve is sealed, is set in the leading screw outer wall, and with axial direction of the leading screw along the outer tube Move up and down, for opening or closing the opening on the outer tube.
- 2. sand control control neatly set according to claim 1, it is characterised in that the opening is more It is individual, along the circumferentially disposed of the outer tube.
- 3. sand control control neatly set according to claim 1, it is characterised in that the outside of the leading screw Provided with fin, sand ring is scraped in one end of the leading screw provided with first, and the sealing inner sleeve is located at the fin Scraped with first between sand ring.
- 4. sand control control neatly set according to claim 5, it is characterised in that also including rolling bearing, It is arranged between the sealing inner sleeve and the fin and the sealing inner sleeve and described first scrapes sand ring Between.
- 5. sand control control neatly set according to claim 3, it is characterised in that also strike-off including second Ring, it is arranged on the other end of the leading screw.
- 6. sand control control neatly set according to claim 1, it is characterised in that also including two groups of density Circle, it is separately positioned on the both ends of the sealing inner sleeve.
- 7. sand control control neatly set according to claim 6, it is characterised in that two groups of sealing rings Between spacing be more than the opening length.
- 8. sand control control neatly set according to claim 1, it is characterised in that the leading screw is in hollow Tubular.
- 9. sand control control neatly set according to claim 1, it is characterised in that also include：First connects Head, internal thread is which is provided with, for being connected with the first end of the outer tube；Second joint, thereon Provided with external screw thread, it is connected for the second end with the outer tube；Second joint with it is described outer The junction of sleeve pipe is provided with the second sealing ring, is set in the junction of first joint and the outer tube There is the first sealing ring.
- A kind of 10. switching device of sand control control neatly set, for opening as claim 1 to 9 is any The sand control control neatly set, it is characterised in that including：Fixture, for fixing the sand control control water The outer tube of sliding sleeve or the second joint；Revolving part, for fixing the leading screw and driving its rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312937.1A CN107366521A (en) | 2016-05-12 | 2016-05-12 | A kind of sand control control neatly set and its switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312937.1A CN107366521A (en) | 2016-05-12 | 2016-05-12 | A kind of sand control control neatly set and its switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366521A true CN107366521A (en) | 2017-11-21 |
Family
ID=60303471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312937.1A Pending CN107366521A (en) | 2016-05-12 | 2016-05-12 | A kind of sand control control neatly set and its switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366521A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723406A (en) * | 2019-03-06 | 2019-05-07 | 武汉市欧赛石油技术开发有限公司 | A kind of method of oilfield horizontal well ball-throwing type sliding sleeve block switch |
| CN109869120A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | The sand control back-up sand system of large cased well |
| CN115162984A (en) * | 2022-07-26 | 2022-10-11 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
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| US20090044944A1 (en) * | 2007-08-16 | 2009-02-19 | Murray Douglas J | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods |
| US20090065194A1 (en) * | 2007-09-07 | 2009-03-12 | Frazier W Lynn | Downhole Sliding Sleeve Combination Tool |
| WO2011057416A1 (en) * | 2009-11-13 | 2011-05-19 | Packers Plus Energy Services Inc. | Stage tool for wellbore cementing |
| US20130056206A1 (en) * | 2011-09-01 | 2013-03-07 | Team Oil Tools, Lp | Valve for hydraulic fracturing through cement outside casing |
| CN103291271A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Fracturing slide sleeve capable of being opened and closed for many times |
| EP2705287A1 (en) * | 2011-05-03 | 2014-03-12 | Packers Plus Energy Services Inc. | Sliding sleeve valve and method for fluid treating a subterranean formation |
| CN104343417A (en) * | 2014-11-06 | 2015-02-11 | 长江大学 | Six-opening switch sliding bush |
| CN204457619U (en) * | 2014-12-25 | 2015-07-08 | 中国石油化工股份有限公司 | Rotary full-bore fracturing switch |
| WO2015020733A3 (en) * | 2013-08-09 | 2015-07-09 | Team Oil Tools Lp | Methods of operating well bore stimulation valves |
| CN105298461A (en) * | 2015-11-03 | 2016-02-03 | 东北石油大学 | Full-bore infinite-time soluble-ball-type fracturing sliding sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090044944A1 (en) * | 2007-08-16 | 2009-02-19 | Murray Douglas J | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods |
| US20090065194A1 (en) * | 2007-09-07 | 2009-03-12 | Frazier W Lynn | Downhole Sliding Sleeve Combination Tool |
| WO2011057416A1 (en) * | 2009-11-13 | 2011-05-19 | Packers Plus Energy Services Inc. | Stage tool for wellbore cementing |
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| US20130056206A1 (en) * | 2011-09-01 | 2013-03-07 | Team Oil Tools, Lp | Valve for hydraulic fracturing through cement outside casing |
| CN103291271A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Fracturing slide sleeve capable of being opened and closed for many times |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723406A (en) * | 2019-03-06 | 2019-05-07 | 武汉市欧赛石油技术开发有限公司 | A kind of method of oilfield horizontal well ball-throwing type sliding sleeve block switch |
| CN109723406B (en) * | 2019-03-06 | 2020-12-15 | 武汉市欧赛石油技术开发有限公司 | Method for sectionally opening and closing ball-throwing type sliding sleeve of oil field horizontal well |
| CN109869120A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | The sand control back-up sand system of large cased well |
| CN115162984A (en) * | 2022-07-26 | 2022-10-11 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
| CN115162984B (en) * | 2022-07-26 | 2024-02-13 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171121 |
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| RJ01 | Rejection of invention patent application after publication |