CN105863580A - Prefabricated sand screening pipe with framework - Google Patents
Prefabricated sand screening pipe with framework Download PDFInfo
- Publication number
- CN105863580A CN105863580A CN201610477137.5A CN201610477137A CN105863580A CN 105863580 A CN105863580 A CN 105863580A CN 201610477137 A CN201610477137 A CN 201610477137A CN 105863580 A CN105863580 A CN 105863580A
- Authority
- CN
- China
- Prior art keywords
- wrapped screen
- wire
- ring
- wrapped
- suit ring
- 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
-
- 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
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Abstract
The invention relates to a prefabricated sand screening pipe with a framework. The prefabricated sand screening pipe is characterized in that an upper inner wire-wrapped screen pipe sleeving ring and a lower inner wire-wrapped screen pipe sleeving ring are fixed at two ends of an inner wire-wrapped screen pipe, an upper outer wire-wrapped screen pipe sleeving ring and a lower outer wire-wrapped screen pipe sleeving ring are fixed at two ends of an outer wire-wrapped screen pipe, an upper partition ring is arranged between upper inner wire-wrapped screen pipe sleeving ring and the upper outer wire-wrapped screen pipe sleeving ring, a lower partition ring is arranged between the lower inner wire-wrapped screen pipe sleeving ring and the lower outer wire-wrapped screen pipe sleeving ring, the upper partition ring and the lower partition ring are integrally welded, the upper partition ring, the upper outer wire-wrapped screen pipe sleeving ring, the upper inner wire-wrapped screen pipe sleeving ring, the inner wire-wrapped screen pipe, the outer wire-wrapped screen pipe, the lower outer wire-wrapped screen pipe sleeving ring, the lower partition ring and the lower inner wire-wrapped screen pipe sleeving ring are integrally assembled and placed into a filling die, and resin sand is used to fill the die so as to form the sand screening pipe using the inner wire-wrapped screen pipe and the outer wire-wrapped screen pipe as the framework. The prefabricated sand screening pipe has the advantages that a base pipe penetrates into the inner wire-wrapped screen pipe and is welded with the upper inner wire-wrapped screen pipe sleeving ring and the lower inner wire-wrapped screen pipe sleeving ring, the strength of the sand screening pipe is increased while the sand screening pipe is kept unobstructed, the sand screening pipe is less prone to damage and dispersion, the service life of the sand screening pipe is prolonged, the pressure resistance of the sand screening pipe is increased, valid period of a sand prevention well is prolonged greatly, and evident economic benefits are achieved.
Description
Technical field
The present invention is the instrument of oil field wellbore sand, is a kind of prefabrication type sand screen having skeleton.
Background technology
The sand screen of existing a kind of oil field wellbore sand is made up of the sand retention pipe of base tube with the resin sand consolidation being sleeved on outside base tube, its sand controlling result is fine, but the limited strength of resin sand consolidation, it is easily broken time during going into the well with wall collisions so that it is sand control measure is unsuccessful, be by its intact lower going-into-well, need to take some special measures, such as well to be scraped, drifting, well-flushing, making pit shaft unblocked, these operations can increase activity duration and operating cost.Enter under additionally also wanting slowly when going into the well, must not bore and bring to a halt, although this requirement is simple requirement, but it is difficulty with at operation field, because operating worker meets anxious emergency and just has the action bored and bring to a halt when operation, so the sand retention pipe of current resin sand consolidation is gone into the well, success rate is low.Owing to produce the biggest throttling when well liquid flow crosses the sand retention pipe of resin sand consolidation, the inside and outside formation pressure differential of the sand retention pipe of resin sand consolidation, again because the consolidation strength of the sand retention pipe of resin sand consolidation is limited, easily breakage under the effect of big pressure reduction, so, the service life of this sand screen is short, and the sand control life of oil well is short.
Summary of the invention
It is an object of the invention to provide a kind of prefabrication type sand screen having skeleton, the problem overcoming above-mentioned existence, increase bearing capacity, during preventing from going into the well and damaged during using, increase the term of validity of sand proof well, improve the economic benefit of sand well.
nullThe object of the present invention is achieved like this: includes base tube、Upper isolating ring、Upper outer wire-wrapped screen suit ring、Wire-wrapped screen suit ring in upper、Interior wire-wrapped screen、Outer wire-wrapped screen、Lower outer wire-wrapped screen suit ring、Lower isolating ring、Wire-wrapped screen suit ring in lower，Sieve aperture is had on base tube，Interior wire-wrapped screen、Gap is had between the wrapping wire of outer wire-wrapped screen，In upper, wire-wrapped screen suit ring is fixed on the upper end of interior wire-wrapped screen，In lower, wire-wrapped screen suit ring is fixed on the lower end of interior wire-wrapped screen，Upper outer wire-wrapped screen suit ring is fixed on the upper end of outer wire-wrapped screen，Lower outer wire-wrapped screen suit ring is fixed on the lower end of outer wire-wrapped screen，Upper outer wire-wrapped screen suit ring、The external diameter of lower outer wire-wrapped screen suit ring is identical and is more than the external diameter 2-6mm of outer wire-wrapped screen，Upper isolating ring is placed between outer wire-wrapped screen suit ring and upper interior wire-wrapped screen suit ring，Lower isolating ring is placed between lower outer wire-wrapped screen suit ring and lower interior wire-wrapped screen suit ring，The outer end of upper isolating ring is set with ring with upper outer wire-wrapped screen、In upper, the upper weld of wire-wrapped screen suit ring is integral，The outer end of lower isolating ring is set with ring with lower outer wire-wrapped screen、In lower, the lower weld of wire-wrapped screen suit ring is integral，Upper isolating ring、Upper outer wire-wrapped screen suit ring、Wire-wrapped screen suit ring in upper、Interior wire-wrapped screen、Outer wire-wrapped screen、Lower outer wire-wrapped screen suit ring、Lower isolating ring、In lower, wire-wrapped screen suit ring puts into filling mould after being assembled integrally，Filling mould is divided into Nei Mo and external mold，The internal diameter of external mold is set with ring with upper outer wire-wrapped screen、The external diameter of lower outer wire-wrapped screen suit ring is equal，The external diameter of interior mould is equal with the internal diameter of interior wire-wrapped screen，Casting resin sand in mould，The resin sand making filling consolidates after filling up the space between the inwall of external mold and the outer wall of interior mould，Wire-wrapped screen within formation、Outer wire-wrapped screen is the sand screen of skeleton，Base tube is penetrated in interior wire-wrapped screen，The sieve aperture on base tube is made to be between interior wire-wrapped screen suit ring and lower interior wire-wrapped screen suit ring，Sand-laden fluid stream can only be filled the gap of resin sand enter in base tube，Wire-wrapped screen suit ring in upper、In lower, wire-wrapped screen suit ring welds together with base tube.
The invention has the beneficial effects as follows: within the centre of the sand screen being prefabricated into has, wire-wrapped screen, outer wire-wrapped screen are skeleton, the intensity of sand screen is added in the case of not affecting patency, sand screen is not easy breakage and dispersion, service life and voltage endurance capability can be improved, it is greatly increased the term of validity of sand proof well, there is significant economic benefit.
Accompanying drawing explanation
Fig. 1 is the topology view of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1, embodiments of the invention are illustrated.
nullCan be known by Fig. 1，Embodiments of the invention include base tube 1、Upper isolating ring 2、Upper outer wire-wrapped screen suit ring 3、Wire-wrapped screen suit ring 4 in upper、Interior wire-wrapped screen 5、Outer wire-wrapped screen 6、Lower outer wire-wrapped screen suit ring 7、Lower isolating ring 8、Wire-wrapped screen suit ring 9 in lower，Sieve aperture is had on base tube 1，Interior wire-wrapped screen 5、Gap is had between the wrapping wire of outer wire-wrapped screen 6，In upper, wire-wrapped screen suit ring 4 is fixed on the upper end of interior wire-wrapped screen 5，In lower, wire-wrapped screen suit ring 9 is fixed on the lower end of interior wire-wrapped screen 5，Upper outer wire-wrapped screen suit ring 3 is fixed on the upper end of outer wire-wrapped screen 6，Lower outer wire-wrapped screen suit ring 7 is fixed on the lower end of outer wire-wrapped screen 6，Upper outer wire-wrapped screen suit ring 3、The external diameter of lower outer wire-wrapped screen suit ring 7 is identical and is more than the external diameter 2-6mm of outer wire-wrapped screen 6，Make it can form the thick resin sand sand block layer of 2-6mm by the outside of wire-wrapped screen 6 outside，Upper isolating ring 2 is placed between outer wire-wrapped screen suit ring 3 and upper interior wire-wrapped screen suit ring 4，Lower isolating ring 8 is placed between lower outer wire-wrapped screen suit ring 7 and lower interior wire-wrapped screen suit ring 9，The outer end of upper isolating ring 2 is set with ring 3 with upper outer wire-wrapped screen、In upper, the upper weld of wire-wrapped screen suit ring 4 is integral，The outer end of lower isolating ring 8 is set with ring 7 with lower outer wire-wrapped screen、In lower, the lower weld of wire-wrapped screen suit ring 9 is integral，Upper isolating ring 2、The effect of lower isolating ring 8 is the toroidal cavity making to be formed between interior wire-wrapped screen 5 and outer wire-wrapped screen 6 5-30mm，To consolidate out the thick sand stop ring of 5-30mm，Upper isolating ring 2、Upper outer wire-wrapped screen suit ring 3、Wire-wrapped screen suit ring 4 in upper、Interior wire-wrapped screen 5、Outer wire-wrapped screen 6、Lower outer wire-wrapped screen suit ring 7、Lower isolating ring 8、In lower, wire-wrapped screen suit ring 9 puts into filling mould after being assembled integrally，Filling mould is divided into Nei Mo and external mold，The internal diameter of external mold is set with ring 3 with upper outer wire-wrapped screen、The external diameter of lower outer wire-wrapped screen suit ring 7 is equal，The external diameter of interior mould is equal with the internal diameter of interior wire-wrapped screen 5，Casting resin sand in mould，The resin sand making filling consolidates after filling up the space between the inwall of external mold and the outer wall of interior mould，Wire-wrapped screen 5 within formation、Outer wire-wrapped screen 6 is the sand screen of skeleton，Base tube 1 is penetrated in interior wire-wrapped screen 5，The sieve aperture on base tube 1 is made to be between interior wire-wrapped screen suit ring 4 and lower interior wire-wrapped screen suit ring 9，Sand-laden fluid stream can only be filled the gap of resin sand enter in base tube 1，Wire-wrapped screen suit ring 4 in upper、In lower, wire-wrapped screen suit ring 9 welds together with base tube 1.
With in flow string lower going-into-well cylinder during use, the bottom of base tube 1 connects plug, and sand-laden fluid stream can only enter in base tube 1 from the gap of resin sand, and sand-laden fluid stream sand grains when the gap of resin sand is blocked, and sand grains will not be pumped down in pump, plays the effect of sand control.
Sand block effect, more than the gap of interior wire-wrapped screen 5, can be improved in gap between the wrapping wire of outer wire-wrapped screen 6.
The function of sand block by resin sand load, therefore, outer wire-wrapped screen 6, interior wire-wrapped screen 5 wire spacing bigger than the gap of common Wire wound tube.
Claims (1)
- null1. the prefabrication type sand screen having skeleton，Including base tube (1)、Upper isolating ring (2)、Upper outer wire-wrapped screen suit ring (3)、Wire-wrapped screen suit ring (4) in upper、Interior wire-wrapped screen (5)、Outer wire-wrapped screen (6)、Lower outer wire-wrapped screen suit ring (7)、Lower isolating ring (8)、Wire-wrapped screen suit ring (9) in lower，Base tube has sieve aperture on (1)，Interior wire-wrapped screen (5)、Gap is had between the wrapping wire of outer wire-wrapped screen (6)，It is characterized in that: in upper, wire-wrapped screen suit ring (4) is fixed on the upper end of interior wire-wrapped screen (5)，In lower, wire-wrapped screen suit ring (9) is fixed on the lower end of interior wire-wrapped screen (5)，Upper outer wire-wrapped screen suit ring (3) is fixed on the upper end of outer wire-wrapped screen (6)，Lower outer wire-wrapped screen suit ring (7) is fixed on the lower end of outer wire-wrapped screen (6)，Upper outer wire-wrapped screen suit ring (3)、The external diameter of lower outer wire-wrapped screen suit ring (7) is identical and is more than the external diameter 2-6mm of outer wire-wrapped screen (6)，Upper isolating ring (2) is placed between outer wire-wrapped screen suit ring (3) and upper interior wire-wrapped screen suit ring (4)，Lower isolating ring (8) is placed between lower outer wire-wrapped screen suit ring (7) and lower interior wire-wrapped screen suit ring (9)，The outer end of upper isolating ring (2) and upper outer wire-wrapped screen suit ring (3)、In upper, the upper weld of wire-wrapped screen suit ring (4) is integral，The outer end of lower isolating ring (8) and lower outer wire-wrapped screen suit ring (7)、In lower, the lower weld of wire-wrapped screen suit ring (9) is integral，Upper isolating ring (2)、Upper outer wire-wrapped screen suit ring (3)、Wire-wrapped screen suit ring (4) in upper、Interior wire-wrapped screen (5)、Outer wire-wrapped screen (6)、Lower outer wire-wrapped screen suit ring (7)、Lower isolating ring (8)、In lower, wire-wrapped screen suit ring (9) puts into filling mould after being assembled integrally，Filling mould is divided into Nei Mo and external mold，The internal diameter of external mold and upper outer wire-wrapped screen suit ring (3)、The external diameter of lower outer wire-wrapped screen suit ring (7) is equal，The external diameter of interior mould is equal with the internal diameter of interior wire-wrapped screen (5)，Casting resin sand in mould，The resin sand making filling consolidates after filling up the space between the inwall of external mold and the outer wall of interior mould，Wire-wrapped screen (5) within formation、Outer wire-wrapped screen (6) is the sand screen of skeleton，Base tube (1) is penetrated in interior wire-wrapped screen (5)，The sieve aperture on base tube (1) is made to be between interior wire-wrapped screen suit ring (4) and lower interior wire-wrapped screen suit ring (9)，Sand-laden fluid stream can only be filled the gap of resin sand enter in base tube (1)，Wire-wrapped screen suit ring (4) in upper、In lower, wire-wrapped screen suit ring (9) welds together with base tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477137.5A CN105863580B (en) | 2016-06-27 | 2016-06-27 | A kind of prefabrication type sand screen for having skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477137.5A CN105863580B (en) | 2016-06-27 | 2016-06-27 | A kind of prefabrication type sand screen for having skeleton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105863580A true CN105863580A (en) | 2016-08-17 |
| CN105863580B CN105863580B (en) | 2018-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610477137.5A Active CN105863580B (en) | 2016-06-27 | 2016-06-27 | A kind of prefabrication type sand screen for having skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863580B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171484A (en) * | 1997-05-23 | 1998-01-28 | 冶金工业部钢铁研究总院 | Sand filter of metallic fibres |
| CN2632314Y (en) * | 2003-07-01 | 2004-08-11 | 中国石油天然气股份有限公司 | Ladder kerf sieve tube |
| US20070227726A1 (en) * | 2004-11-10 | 2007-10-04 | Bill Rouse | Slip on screen with expanded base pipe |
| CN201363128Y (en) * | 2009-01-08 | 2009-12-16 | 菲时特科技(天津)有限公司 | High intensity compound sand control screen |
| CN201588606U (en) * | 2009-12-01 | 2010-09-22 | 中国石油集团长城钻探工程有限公司 | Sand control screen pipe |
| CN202152672U (en) * | 2011-07-06 | 2012-02-29 | 东营明德石油科技有限公司 | Fine filtering slotted screen pipe |
| CN205677589U (en) * | 2016-06-27 | 2016-11-09 | 东营市三和石油装备有限公司 | A kind of prefabrication type sand screen having skeleton |
-
2016
- 2016-06-27 CN CN201610477137.5A patent/CN105863580B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171484A (en) * | 1997-05-23 | 1998-01-28 | 冶金工业部钢铁研究总院 | Sand filter of metallic fibres |
| CN2632314Y (en) * | 2003-07-01 | 2004-08-11 | 中国石油天然气股份有限公司 | Ladder kerf sieve tube |
| US20070227726A1 (en) * | 2004-11-10 | 2007-10-04 | Bill Rouse | Slip on screen with expanded base pipe |
| CN201363128Y (en) * | 2009-01-08 | 2009-12-16 | 菲时特科技(天津)有限公司 | High intensity compound sand control screen |
| CN201588606U (en) * | 2009-12-01 | 2010-09-22 | 中国石油集团长城钻探工程有限公司 | Sand control screen pipe |
| CN202152672U (en) * | 2011-07-06 | 2012-02-29 | 东营明德石油科技有限公司 | Fine filtering slotted screen pipe |
| CN205677589U (en) * | 2016-06-27 | 2016-11-09 | 东营市三和石油装备有限公司 | A kind of prefabrication type sand screen having skeleton |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105863580B (en) | 2018-04-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Shujie Inventor after: Kang Haoran Inventor after: Guo Wenfeng Inventor after: Zhang Yang Inventor after: Geng Dongna Inventor after: Shi Feng Inventor after: Huo Hong Inventor after: Ding Mingmei Inventor before: Wang Shujie Inventor before: Kang Haoran Inventor before: Guo Wenfeng Inventor before: Zhang Yang |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |