CN101270644A - Sieve tube with bulged internal support sleeve and its processing method - Google Patents
Sieve tube with bulged internal support sleeve and its processing method Download PDFInfo
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- CN101270644A CN101270644A CNA2008101057425A CN200810105742A CN101270644A CN 101270644 A CN101270644 A CN 101270644A CN A2008101057425 A CNA2008101057425 A CN A2008101057425A CN 200810105742 A CN200810105742 A CN 200810105742A CN 101270644 A CN101270644 A CN 101270644A
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Abstract
The invention discloses a sieve vessel with a convex inner supporting casing and a method of manufacturing the sieve vessel, which belongs to the field of petroleum extraction. The sieve vessel comprises a parent tube. The top of the parent tube is provided with a supporting ring. The inner supporting casing and an external supporting casing are installed via the supporting ring. A pipe seam between the parent tube and the inner supporting casing is a diversion layer gap. A sand-prevention net is arranged between the inner and the external supporting casings. The outer sleeve of the external supporting casing is provided with a punched chink sleeve. The inner supporting casing is evenly provided with bulging that bulges onto the diversion layer gap. The method is that an inner circular arc on the top circle of the inner supporting casing is punched by a pressing machine and the circular arc can not be broken through. The sieve vessel uses the bulging to enlarge the diversion layer gap between the inner supporting casing and the parent tube by the bulging that is evenly arranged on the inner supporting casing and bulges onto the diversion layer gap. So the sieve vessel has the effects of reducing the flowing friction of the diversion layer gap in the process of oil extraction and improving the oil production of a well.
Description
Technical field
The present invention relates to a kind of field of petroleum exploitation screen casing and processing method thereof, particularly a kind of field of petroleum exploitation screen casing and processing method thereof that has bulged internal support sleeve.
Background technology
In the oil exploitation operation, screen casing is used for oil well, gas well, horizontal well and deep well micropore sand control in early stage and filters, screen casing can be used for all kinds of oil, gas, the well of cased hole completion such as straight well, inclined shaft, horizontal well and barefoot completion, can use as sand control pipe separately, also can cooperate filling to use.
As shown in Figure 1, the existing screen casing that has the standard internal support sleeve includes a parent tube 1, on parent tube, be evenly distributed with through hole 1-1, the top of parent tube is provided with Supporting ring 2, by Supporting ring internal support sleeve 4 and outer supporting sleeve 6 are installed, in, have spaced apart through hole 4-1 on the outer supporting sleeve respectively, 6-1, through hole 1-1 on the parent tube and the through hole 4-1 on the internal support sleeve are provided with at interval, pipe seam between parent tube and the internal support sleeve is water conservancy diversion lamellar spacing 3, in, be provided with sand control screens 5 between the outer supporting sleeve, outer supporting sleeve is with calking cover 7 outward, and the water conservancy diversion lamellar spacing between standard internal support sleeve and the parent tube is very little, is generally the 0.01-1.5 millimeter, the water conservancy diversion lamellar spacing can become littler during pressurized, during oil recovery, oil is big in the flow resistance of water conservancy diversion layer, can not improve the oil production of oil well.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the existing defective that has the screen casing of standard internal support sleeve, a kind of screen casing and processing method thereof that has bulged internal support sleeve is provided, it has increased the water conservancy diversion lamellar spacing between internal support sleeve and the parent tube, reduce the flow resistance of oil in the water conservancy diversion lamellar spacing when recovering the oil, improved the oil production of oil well.Reduce the punching quantity on the water-control sieve tube simultaneously, increased the intensity of water-control sieve tube.
For solving the problems of the technologies described above, technical solution of the present invention is as follows:
A kind of screen casing that has bulged internal support sleeve of the present invention, comprise parent tube, be evenly distributed with through hole on the described parent tube, the top of parent tube is provided with Supporting ring, outside parent tube, be set with internal support sleeve and outer supporting sleeve by Supporting ring, in, have spaced apart through hole on the outer supporting sleeve respectively, through hole on the parent tube and the through hole on the internal support sleeve are provided with at interval, pipe seam between parent tube and the internal support sleeve is the water conservancy diversion lamellar spacing, in, be provided with sand control screens between the outer supporting sleeve, outer supporting sleeve is set with the calking cover outward, evenly is provided with the projection that protrude in guide fluid layer gap on the described internal support sleeve.
In order to make projection can bring into play the effect that increases the water conservancy diversion lamellar spacing between internal support sleeve and the parent tube better, the through hole on projection of the present invention and the internal support sleeve is spaced apart.
In order to make projection be convenient to design and processing, projection of the present invention is the circular arc projection.
In order to be applicable to the standard screen casing, the arc diameter of circular arc projection of the present invention is
The circular arc degree of depth is 1mm-3mm, and the distance at the center of the through hole on center of arc and the internal support sleeve is 4mm-5mm.
The present invention provides a kind of described processing method that has the screen casing of bulged internal support sleeve simultaneously, with forcing press at internal support sleeve cylindrical upper punch circular arc, circular arc can not dash saturating, arc diameter φ 1mm-φ 4mm, the dark 1mm-3mm of circular arc, the distance at through hole center is 4mm-5mm on center of arc and the internal support sleeve.Again with internal support sleeve and parent tube assembling.
The beneficial effect of technical scheme provided by the invention is: by the projection that protrude in guide fluid layer gap evenly is set on internal support sleeve, utilize the protruding water conservancy diversion lamellar spacing that has increased between internal support sleeve and the parent tube, reduce the flow resistance of oil in the water conservancy diversion lamellar spacing when recovering the oil, improved the oil production of oil well.
And the present invention stamps out the circular arc projection on internal support sleeve, has improved the circularity of internal support sleeve, has improved the rigidity of internal support sleeve, thereby the more existing screen casing intensity height that has the standard internal support sleeve of the present invention, and uses the longevity long, is difficult for stopping up.
Characteristics such as in addition, the present invention also has simple and reasonable, and cost is low, and range of application is wide.
Description of drawings
Fig. 1 is the existing structural representation that has the screen casing of standard internal support sleeve;
Fig. 2 is the structural representation that has the screen casing of bulged internal support sleeve of the present invention.
Among the figure: 1, parent tube; Through hole on 1-1, the parent tube; 2, Supporting ring; 3, water conservancy diversion lamellar spacing; 4, internal support sleeve; Through hole on the 4-1 internal support sleeve; 5, sand control screens; 6, outer supporting sleeve; Through hole on 6-1, the outer supporting sleeve; 7, calking cover; 8, projection.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 2, a kind of screen casing that has bulged internal support sleeve of the present invention, comprise parent tube 1, be evenly distributed with through hole 1-1 on the described parent tube, the top of parent tube is provided with Supporting ring 2, outside parent tube, be set with internal support sleeve 4 and outer supporting sleeve 6 by Supporting ring, in, have spaced apart through hole 4-1 on the outer supporting sleeve respectively, 6-1, through hole on the parent tube and the through hole on the internal support sleeve are provided with at interval, pipe seam between parent tube and the internal support sleeve is water conservancy diversion lamellar spacing 3, in, be provided with sand control screens 5 between the outer supporting sleeve, outer supporting sleeve is set with calking cover 7 outward, evenly is provided with the projection 8 that protrude in guide fluid layer gap on the described internal support sleeve.
In order to make projection can bring into play the effect that increases the water conservancy diversion lamellar spacing between internal support sleeve and the parent tube better, the through hole on projection of the present invention and the internal support sleeve is spaced apart.
In order to make projection be convenient to design and processing, projection of the present invention is the circular arc projection.
In order to be applicable to the standard screen casing, the arc diameter of circular arc projection of the present invention is
The circular arc degree of depth is 1mm-3mm, and the distance at the center of the through hole on center of arc and the internal support sleeve is 4mm-5mm.
The present invention provides a kind of described processing method that has the screen casing of bulged internal support sleeve simultaneously, with forcing press at internal support sleeve cylindrical upper punch circular arc, circular arc can not dash saturating, arc diameter φ 1mm-φ 4mm, the dark 1mm-3mm of circular arc, the distance at through hole center is 4mm-5mm on center of arc and the internal support sleeve.Again with internal support sleeve and parent tube assembling.
The present invention utilizes the protruding water conservancy diversion lamellar spacing that has increased between internal support sleeve and the parent tube by the projection that protrude in guide fluid layer gap evenly is set on internal support sleeve, reduced the flow resistance of oil in the water conservancy diversion lamellar spacing when recovering the oil, and has improved the oil production of oil well.
And the present invention stamps out the circular arc projection on internal support sleeve, has improved the circularity of internal support sleeve, has improved the rigidity of internal support sleeve, thereby the more existing screen casing intensity height that has the standard internal support sleeve of the present invention, and uses the longevity long, is difficult for stopping up.
Characteristics such as in addition, the present invention also has simple and reasonable, and cost is low, and range of application is wide.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1, a kind of screen casing that has bulged internal support sleeve, comprise parent tube, be evenly distributed with through hole on the described parent tube, the top of parent tube is provided with Supporting ring, outside parent tube, be set with internal support sleeve and outer supporting sleeve by Supporting ring, in, have spaced apart through hole on the outer supporting sleeve respectively, through hole on the parent tube and the through hole on the internal support sleeve are provided with at interval, pipe seam between parent tube and the internal support sleeve is the water conservancy diversion lamellar spacing, in, be provided with sand control screens between the outer supporting sleeve, outer supporting sleeve is set with the calking cover outward, it is characterized in that: evenly be provided with the projection that protrude in guide fluid layer gap on the described internal support sleeve.
2, the screen casing that has bulged internal support sleeve as claimed in claim 1, it is characterized in that: the through hole on described projection and the internal support sleeve is spaced apart.
3, the screen casing that has bulged internal support sleeve as claimed in claim 2 is characterized in that: described projection is the circular arc projection.
4, the screen casing that has bulged internal support sleeve as claimed in claim 3, it is characterized in that: the arc diameter of described circular arc projection is
The circular arc degree of depth is 1mm-3mm, and the distance at the center of the through hole on center of arc and the internal support sleeve is 4mm-5mm.
5, a kind of processing method that has the screen casing of bulged internal support sleeve as claimed in claim 4, it is characterized in that: with forcing press on the internal support sleeve cylindrical inwardly towards circular arc, circular arc can not dash saturating, arc diameter φ 1mm-φ 4mm, the dark 1mm-3mm of circular arc, the distance at through hole center is 4mm-5mm on center of arc and the internal support sleeve, again with internal support sleeve and parent tube assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101057425A CN101270644A (en) | 2008-04-30 | 2008-04-30 | Sieve tube with bulged internal support sleeve and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101057425A CN101270644A (en) | 2008-04-30 | 2008-04-30 | Sieve tube with bulged internal support sleeve and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101270644A true CN101270644A (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101057425A Pending CN101270644A (en) | 2008-04-30 | 2008-04-30 | Sieve tube with bulged internal support sleeve and its processing method |
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| CN (1) | CN101270644A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071914A (en) * | 2011-01-10 | 2011-05-25 | 中国石油大学(华东) | Novel sand control screen pipe with adjustable on-site sand stop precision |
| CN102108850A (en) * | 2009-12-28 | 2011-06-29 | 思达斯易能源技术(集团)有限公司 | Radial-inserting and radial-throttling type throttler and balance sieve tube employing same |
| CN102108848A (en) * | 2009-12-28 | 2011-06-29 | 思达斯易能源技术(集团)有限公司 | Composite filter sieve tube |
| CN103352677A (en) * | 2013-07-18 | 2013-10-16 | 太仓优尼泰克精密机械有限公司 | Under-pit petroleum sand-preventing filter tube |
| WO2018049560A1 (en) * | 2016-09-13 | 2018-03-22 | 思达斯易能源技术(集团)有限公司 | Sand control screen for heavy oil thermal recovery |
| CN110608017A (en) * | 2019-10-23 | 2019-12-24 | 河北恒英金属制品有限公司 | Improved oil sand control pipe |
| CN112324400A (en) * | 2020-12-04 | 2021-02-05 | 中国石油大学(北京) | Pre-filled sand control screen pipe nipple and processing method thereof |
-
2008
- 2008-04-30 CN CNA2008101057425A patent/CN101270644A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108850A (en) * | 2009-12-28 | 2011-06-29 | 思达斯易能源技术(集团)有限公司 | Radial-inserting and radial-throttling type throttler and balance sieve tube employing same |
| CN102108848A (en) * | 2009-12-28 | 2011-06-29 | 思达斯易能源技术(集团)有限公司 | Composite filter sieve tube |
| CN102071914A (en) * | 2011-01-10 | 2011-05-25 | 中国石油大学(华东) | Novel sand control screen pipe with adjustable on-site sand stop precision |
| CN102071914B (en) * | 2011-01-10 | 2016-05-18 | 中国石油大学(华东) | The sand control screen of on-the-spot adjustable accuracy |
| CN103352677A (en) * | 2013-07-18 | 2013-10-16 | 太仓优尼泰克精密机械有限公司 | Under-pit petroleum sand-preventing filter tube |
| CN103352677B (en) * | 2013-07-18 | 2016-01-20 | 太仓优尼泰克精密机械有限公司 | A kind of downhole petroleum sand control filter pipe |
| WO2018049560A1 (en) * | 2016-09-13 | 2018-03-22 | 思达斯易能源技术(集团)有限公司 | Sand control screen for heavy oil thermal recovery |
| US10767450B2 (en) | 2016-09-13 | 2020-09-08 | Starse Energy And Technology (Group) Co., Ltd | Sand control screen for heavy oil thermal recovery |
| CN110608017A (en) * | 2019-10-23 | 2019-12-24 | 河北恒英金属制品有限公司 | Improved oil sand control pipe |
| CN112324400A (en) * | 2020-12-04 | 2021-02-05 | 中国石油大学(北京) | Pre-filled sand control screen pipe nipple and processing method thereof |
| CN112324400B (en) * | 2020-12-04 | 2023-02-03 | 中国石油大学(北京) | Pre-filled sand control screen pipe nipple and processing method thereof |
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Application publication date: 20080924 |