CN107100595A - A kind of expandable sand control screen pipe - Google Patents
A kind of expandable sand control screen pipe Download PDFInfo
- Publication number
- CN107100595A CN107100595A CN201710412434.6A CN201710412434A CN107100595A CN 107100595 A CN107100595 A CN 107100595A CN 201710412434 A CN201710412434 A CN 201710412434A CN 107100595 A CN107100595 A CN 107100595A
- Authority
- CN
- China
- Prior art keywords
- inflatable
- expandable
- thread
- screen
- box
- 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.)
- Granted
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/108—Expandable screens or perforated liners
Abstract
The invention discloses a kind of expandable sand control screen pipe, including expandable seal box, expandable screen main body and expandable seal pin thread, expandable seal box is connected to expandable screen main body upper and lower ends with expandable seal pin thread by inserting welding；Wherein expandable seal box is divided into " Z " type expansion box thread component and inflatable female threaded seat；Expandable screen pipe main body is made up of inflatable base tube, wound form precision sand preventing screen cloth, inflatable outer containment vessel；Expandable seal pin thread is divided into " Z " type expansion male thread component and inflatable male thread seat.High-performance expandable screen pipe is set to occur radial dilatation deformation using mechanical force by expanding swollen cone during work, latus rectum increases in screen body while radial deformation, metal-clad sealing is set up after area of passage increase, inflatable threaded expander, it is ensured that sand control capability and bonding strength.
Description
Technical field
The present invention relates to a kind of sand control screen, especially a kind of expandable sand control screen pipe is mainly used in straight well, orientation
The sand control completion operation of the various well type such as well, horizontal well.
Background technology
Domestic common sand control screen has wire-wrapped screen, cutting seam sieve tube and composite screen pipe at present, and they respectively have feature, wrapping wire
Screen casing is made up of perforated base pipe with excessively stream dielectric layer, cross flow medium for controllable width wedge wire be wrapped on reinforcement and
Into, the screen casing excessively stream medium thickness of this structure influences latus rectum in screen casing, is unfavorable for subsequent job, and in tripping in and production
During easily there is sleave situation, influence sand block precision；Cutting seam sieve tube is the individual layer knot that controllable width seam is cut out on sleeve pipe
Latus rectum is big in structure screen casing, screen casing, but the wide bad control of slot width causes this kind of screen sand control precision low and close by slot
Degree influence, the conveyance capacity of this kind of screen casing is low；Composite screen pipe is made up of perforated base pipe, accurate excessively stream dielectric layer and outer guarantor's shell
Three-decker screen casing, this kind of screen casing is due to the accurate excessively stream dielectric layer being made up of screen cloth or sieve cotton, and its sand control precision is normal at present
With highest in screen casing, but this excessively stream medium thickness is equally equally existed with wire-wrapped screen, in influence the problem of latus rectum.Separately
Outside, at present there is a common problem in all types of conventional screen casings：As the production time elapses, the annular space between screen casing and the borehole wall
Occur that layer of sand is accumulated, bottom water coning can be also accelerated while increasing producing pressure differential, influence yield.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of expandable sand control screen pipe, pass through expanding swollen cone during work
Expandable screen pipe is set to occur radial dilatation deformation using mechanical force, latus rectum increases in screen body while radial deformation, excessively stream
Area increase, it is ensured that sand control capability and bonding strength.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of expandable sand control screen pipe, including can
Expansion sealing box, expandable screen main body and expandable seal pin thread, expandable seal box pass through with expandable seal pin thread
Insertion welding is connected to expandable screen main body upper and lower ends；
The annular that expandable seal box includes being made up of multiple " Z " type components may expand box thread and inflatable box thread
Seat, " Z " type component section is in " Z " font, and complete inflatable box thread by multigroup " Z " type component, arrange in the same direction clockwise by splicing
Composition, inflatable box thread is connected by embedded welding with inflatable female threaded seat, may expand female threaded seat with staggered
Cutting seam, it is ensured that allow while axial strength occur radial expanding deformation oil, occur radial deformation when, may expand box thread
" Z " type component mutually deploy, the splicing gap between each component is extruded and is brought into close contact, and is realized while dilatating and deformable
Sealing；
The annular that expandable seal pin thread includes being made up of multiple " Z " type components may expand male thread and inflatable male thread
Seat, " Z " type component section is in " Z " font, and complete inflatable male thread by multigroup " Z " type component, arrange in the same direction clockwise by splicing
Composition, inflatable male thread is connected by embedded welding with inflatable male thread seat, may expand male thread seat with staggered
Cutting seam, it is ensured that allow while axial strength occur radial expanding deformation oil, occur radial deformation when, may expand male thread
" Z " type component mutually deploy, the splicing gap between each component is extruded and is brought into close contact, and is realized while dilatating and deformable
Sealing；
Expandable screen main body includes wound form precision sand preventing screen cloth, inflatable base tube, may expand outer containment vessel, may expand base
Pipe is provided with staggered cutting seam with may expand on outer containment vessel, allow to occur radially to expand while axial strength is ensured
Deformation is opened, wound form precision sand preventing screen wound is on inflatable base tube, then is inserted in the inflatable outer containment vessel of protection screen cloth, twines
Wound precision sand preventing screen cloth plays sand block, screen casing occur wound form precision sand preventing screen cloth during radial deformation extend out it is easypro
Exhibition, it is ensured that the sand control capability of the screen casing after expansion.
The screw thread of expandable seal box and expandable seal pin thread employs non-contour saw-tooth thread, is ensureing pitch
On the premise of consistent, the tooth height of pin thread screw thread leading portion is relatively low, and the tooth of thread root is higher；The tooth bottom depth of box is higher than public spiral shell
Line tooth is high.
The beneficial effects of the invention are as follows：
(1) compact conformation, using inflatable design, latus rectum is big after screen casing expansion, can meet construction in later period requirement；
(2) after expanding, the excessively stream seam expansion on screen casing is added significantly to the area of passage of screen casing；
(3) flow medium is crossed as the sand control of screen casing using precision sand preventing screen cloth, sand block precision is high；
(4) after expanding, the annular clearance between the borehole wall is small, and producing pressure differential is low, is favorably improved production capacity, prevents bottom water cone
Enter.
(5) it is widely used, high-performance expandable sand control screen pipe can be used in the sleeve pipe of all types of wells and open hole sand control completion.
Brief description of the drawings
Fig. 1 is the structure chart of the expandable sand control screen pipe of the present invention.
Fig. 2 is Fig. 1 A-A profiles.
Fig. 3 is Fig. 1 B-B profiles.
Fig. 4 is Fig. 1 D-D profiles.
Fig. 5 is that (section D-D is inflatable screw thread for the inflatable thread variations state diagram of the expandable sand control screen pipe of the present invention
Original state after connection, section D '-D ' are the state after inflatable screw thread is radially expanded)
For the inflatable form of thread figure of expandable sand control screen pipe of the present invention, (a is that to may expand box thread, b be inflatable to Fig. 6
Male thread).
Fig. 7 is that (c is shape before the expansion of precision sand preventing screen cloth to expandable sand control screen pipe precision sand preventing mesh structure figure of the present invention
State, c ' are state after the expansion of precision sand preventing screen cloth).
Fig. 8 be expandable sand control screen pipe of the present invention inflatable base tube structure chart (d be state before inflatable base tube expansion,
D ' is state after inflatable base tube expansion).
Fig. 9 is that (e is that state, e ' are before the expansion of outer containment vessel for the outer containment vessel structure chart of expandable sand control screen pipe of the present invention
State after outer containment vessel expansion).
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figs 1-9, expandable sand control screen pipe of the invention, including expandable seal box 1, expandable screen main body 2
With expandable seal pin thread 3, expandable seal box 1 is connected respectively with expandable seal pin thread 3 by way of inserting welding
In the upper and lower ends of expandable screen main body 2；
The annular that expandable seal box 1 includes being made up of multiple " Z " type components may expand box thread 1-1 and inflatable mother
Threaded block 1-2, " Z " type component section is in " Z " font, and complete inflatable box thread 1-1 is same clockwise by multigroup " Z " type component
To splicing arrangement composition, inflatable box thread 1-1 is connected by embedded welding with inflatable female threaded seat 1-2, may expand mother's spiral shell
Line seat 1-2 is stitched with staggered cutting, it is ensured that allow occur radial expanding deformation oil while axial strength, is being occurred radially
During deformation, inflatable box thread 1-1 " Z " type component mutually deploys, and the splicing gap between each component is extruded and close
Laminating, realizes sealing while dilatating and deformable；
The annular that expandable seal pin thread 3 includes being made up of multiple " Z " type components may expand male thread 3-2 and inflatable public affairs
Threaded block 3-1, " Z " type component section is in " Z " font, and complete inflatable male thread 3-2 is same clockwise by multigroup " Z " type component
To splicing arrangement composition, inflatable male thread 3-2 is connected by embedded welding with inflatable male thread seat 3-1, may expand public affairs spiral shell
Line seat 3-1 is stitched with staggered cutting, it is ensured that allow occur radial expanding deformation oil while axial strength, is being occurred radially
During deformation, inflatable male thread 3-2 " Z " type component mutually deploys, and the splicing gap between each component is extruded and close
Laminating, realizes sealing while dilatating and deformable；
Expandable screen main body 2 includes wound form precision sand preventing screen cloth 2-1, inflatable base tube 2-2, may expand outer containment vessel 2-
3, inflatable base tube 2-2 are provided with staggered cutting seam with may expand on outer containment vessel 2-3, ensureing the same of axial strength
When allow occur radial expanding deformation oil, wound form precision sand preventing screen cloth 2-1 is wrapped on inflatable base tube 2-2, then is inserted in protection
The inflatable outer containment vessel 2-3 of screen cloth, wound form precision sand preventing screen cloth 2-1 play sand block, and the mistake of radial deformation occurs for screen casing
Wound form precision sand preventing screen cloth 2-1, which is extended out, in journey unfolds, it is ensured that the sand control capability of the screen casing after expansion.
The screw thread of expandable seal box 1 and expandable seal pin thread 3 employs non-contour saw-tooth thread, is ensureing spiral shell
On the premise of consistent, the tooth height of pin thread screw thread leading portion is relatively low, and the tooth of thread root is higher；The tooth bottom depth of box is higher than public affairs
Height of thread.
The expandable sand control screen pipe of the present invention belongs under contraction state, screen casing during tripping in place afterwards using expanding swollen
Cone makes screen casing radial dilatation by mechanical force, after expandable screen expansion, and interior latus rectum increase meets later stage job requirements, the mistake of screen casing
Flow medium uses high-precision sand control screen cloth, it is ensured that screen casing has enough sand block precision, while the flowing hole of screen casing expands in radial direction
Further increase area of passage can be increased during simultaneously.Expandable sand control screen pipe expands the ring between ethmoid canal,posterior and the borehole wall
Empty gap is compressed to minimum, effectively reduces producing pressure differential, increases oil well output, and producing pressure differential reduction also effectively prevents bottom water cone
Enter.
In summary, present disclosure is not limited in the above embodiments, and the knowledgeable people in same area can
Can propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (2)
1. a kind of expandable sand control screen pipe, it is characterised in that including expandable seal box (1), expandable screen main body (2) and can
Expansion sealing pin thread (3), expandable seal box (1) and expandable seal pin thread (3) by insert welding be connected to it is swollen
Swollen screen body (2) upper and lower ends；
The annular that expandable seal box (1) includes being made up of multiple " Z " type components may expand box thread (1-1) and inflatable mother
Threaded block (1-2), " Z " type component section is in " Z " font, and complete inflatable box thread (1-1) is by multigroup " Z " type component up time
Pin splices arrangement composition in the same direction, and inflatable box thread (1-1) is connected by embedded welding with inflatable female threaded seat (1-2), can
Expand female threaded seat (1-2) to stitch with staggered cutting, it is ensured that allow occur radial expanding deformation oil while axial strength,
When occurring radial deformation, " Z " type component of inflatable box thread (1-1) mutually deploys, the splicing gap between each component
It is extruded and is brought into close contact, sealing is realized while dilatating and deformable；
The annular that expandable seal pin thread (3) includes being made up of multiple " Z " type components may expand male thread (3-2) and inflatable public affairs
Threaded block (3-1), " Z " type component section is in " Z " font, and complete inflatable male thread (3-2) is by multigroup " Z " type component up time
Pin splices arrangement composition in the same direction, and inflatable male thread (3-2) is connected by embedded welding with inflatable male thread seat (3-1), can
Expand male thread seat (3-1) to stitch with staggered cutting, it is ensured that allow occur radial expanding deformation oil while axial strength,
When occurring radial deformation, " Z " type component of inflatable male thread (3-2) mutually deploys, the splicing gap between each component
It is extruded and is brought into close contact, sealing is realized while dilatating and deformable；
Expandable screen main body (2) includes wound form precision sand preventing screen cloth (2-1), inflatable base tube (2-2), may expand outer containment vessel
(2-3), inflatable base tube (2-2) is provided with staggered cutting seam with may expand on outer containment vessel (2-3), ensureing axially
Allow occur radial expanding deformation oil while intensity, wound form precision sand preventing screen cloth (2-1) is wrapped in inflatable base tube (2-2)
On, then the inflatable outer containment vessel (2-3) of protection screen cloth is inserted in, wound form precision sand preventing screen cloth (2-1) plays sand block, screen casing
Wound form precision sand preventing screen cloth (2-1), which is extended out, during generation radial deformation unfolds, it is ensured that the anti-grittiness of the screen casing after expansion
Energy.
2. expandable sand control screen pipe according to claim 1, it is characterised in that expandable seal box (1) with it is inflatable close
The screw thread of envelope pin thread (3) employs non-contour saw-tooth thread, on the premise of ensureing that pitch is consistent, the tooth of pin thread screw thread leading portion
High relatively low, the tooth of thread root is higher；The tooth bottom depth of box is high higher than male thread tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412434.6A CN107100595B (en) | 2017-06-01 | 2017-06-01 | A kind of expandable sand control screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412434.6A CN107100595B (en) | 2017-06-01 | 2017-06-01 | A kind of expandable sand control screen pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100595A true CN107100595A (en) | 2017-08-29 |
| CN107100595B CN107100595B (en) | 2018-12-25 |
Family
ID=59660077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412434.6A Active CN107100595B (en) | 2017-06-01 | 2017-06-01 | A kind of expandable sand control screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100595B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259409A (en) * | 2019-07-17 | 2019-09-20 | 中石化石油工程技术服务有限公司 | Packer slip sand control installation |
| CN110295868A (en) * | 2019-07-16 | 2019-10-01 | 邓福成 | Combined expanded screen casing |
| CN112177572A (en) * | 2019-07-03 | 2021-01-05 | 中国石油化工股份有限公司 | Annular self-filling sand control screen pipe |
| CN115318637A (en) * | 2022-09-14 | 2022-11-11 | 宁波艾克姆新材料股份有限公司 | Horizontal air flow sieve |
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| GB2410268A (en) * | 2002-10-15 | 2005-07-27 | Schlumberger Holdings | Expandable sand screen with expandable base pipe and a liner between overlapping filter sheets |
| CN201162500Y (en) * | 2008-03-13 | 2008-12-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Screw connection structure of non-node hoop expansion screen casing |
| CN201162499Y (en) * | 2008-03-13 | 2008-12-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Thread connector of expansion sand-prevention screening tube |
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| CN202731860U (en) * | 2012-06-12 | 2013-02-13 | 天津市金甲石油工程技术服务有限公司 | Sand control screen |
| CN103967456A (en) * | 2014-05-23 | 2014-08-06 | 天津前云东方能源科技有限公司 | Expansion screen pipe |
| EP2947260A1 (en) * | 2014-05-23 | 2015-11-25 | Tianjin Top Cloud East Energy Technology Co., Ltd. | Expandable sand screen |
| CN205189844U (en) * | 2015-11-11 | 2016-04-27 | 刘欣 | Expansion sieve tube |
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2017
- 2017-06-01 CN CN201710412434.6A patent/CN107100595B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2410268A (en) * | 2002-10-15 | 2005-07-27 | Schlumberger Holdings | Expandable sand screen with expandable base pipe and a liner between overlapping filter sheets |
| CN201162500Y (en) * | 2008-03-13 | 2008-12-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Screw connection structure of non-node hoop expansion screen casing |
| CN201162499Y (en) * | 2008-03-13 | 2008-12-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Thread connector of expansion sand-prevention screening tube |
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| CN202731860U (en) * | 2012-06-12 | 2013-02-13 | 天津市金甲石油工程技术服务有限公司 | Sand control screen |
| CN103967456A (en) * | 2014-05-23 | 2014-08-06 | 天津前云东方能源科技有限公司 | Expansion screen pipe |
| EP2947260A1 (en) * | 2014-05-23 | 2015-11-25 | Tianjin Top Cloud East Energy Technology Co., Ltd. | Expandable sand screen |
| CN205189844U (en) * | 2015-11-11 | 2016-04-27 | 刘欣 | Expansion sieve tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177572A (en) * | 2019-07-03 | 2021-01-05 | 中国石油化工股份有限公司 | Annular self-filling sand control screen pipe |
| CN110295868A (en) * | 2019-07-16 | 2019-10-01 | 邓福成 | Combined expanded screen casing |
| CN110295868B (en) * | 2019-07-16 | 2021-12-14 | 邓福成 | Combined expansion sieve tube |
| CN110259409A (en) * | 2019-07-17 | 2019-09-20 | 中石化石油工程技术服务有限公司 | Packer slip sand control installation |
| CN115318637A (en) * | 2022-09-14 | 2022-11-11 | 宁波艾克姆新材料股份有限公司 | Horizontal air flow sieve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100595B (en) | 2018-12-25 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210219 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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