CN204436351U - Aluminium alloys cutting seam sieve tube - Google Patents
Aluminium alloys cutting seam sieve tube Download PDFInfo
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- CN204436351U CN204436351U CN201520085091.3U CN201520085091U CN204436351U CN 204436351 U CN204436351 U CN 204436351U CN 201520085091 U CN201520085091 U CN 201520085091U CN 204436351 U CN204436351 U CN 204436351U
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Abstract
The utility model relates to a kind of aluminium alloys cutting seam sieve tube.Its technical scheme is: comprise lower contact, screen body, compound slot, top connection, described screen body adopts aluminium alloys to make, its one end is provided with lower contact, the other end is provided with top connection, screen body is distributed with many group compound slots, and described compound slot is made up of rectangular slits and trapezoidal seam, is rectangular slits at the slot that the tube wall of screen body is outer, inner slot is trapezoidal seam, and this trapezoidal seam is the shape of outer narrow inner width.Beneficial effect is: screen body used is high-strength aluminum alloy material on the one hand, in sidetracked hole, uses common brill milling tool to bore out easily, meets the resistance Compressive Strength requirement of well screen; The cross section, gap adopted on the other hand is compound shape, be rectangle in the shape of one section of wall thickness inseam of outer tube layer, its lower end connects the trapezoidal seam of an outer narrow inner width, when there being grit to enter in gap, easily carried by crude oil and pass through, outer rectangle can improve resistance to wearing of gap.
Description
Technical field
The utility model relates to a kind of sand-preventing petroleum cutting seam sieve tube, particularly a kind of aluminium alloys cutting seam sieve tube.
Background technology
Sand-preventing petroleum cutting seam sieve tube due to structure simple, sand controlling result is good, is applied to widely in well recovery at present, comprises horizontal well, sidetracked hole, the completion of Multilateral Wells and the oil extraction sand prevention of layer of sand oil reservoir.
Current cutting seam sieve tube material adopts the sleeve pipe in API standard substantially, comprises H40, J55, K55, N80, M65, L80, C90, T95, P110, Q125 etc., these materials are all be base material with alloy steel, through certain Technology for Heating Processing, reach required combination property requirement.
After in the cutting seam sieve tube lower going-into-well that API normal sleeve is processed into, when needing to beat sidetracked hole, on screen casing, sidetracking is very difficult, and some later stage well-repairing works are also difficult to launch.
Chinese patent literature publication number is 2698969, and patent name is " slotted sand control liner ", and be distributed in the radial cross-section of the slot on screen casing wall from inside to outside in " Y " font, namely inwall gap is large, and outer wall gap is little.Outer wall gap width is between 0.15-1 millimeter, and outer wall gap depth is between 0.1-5 millimeter.Its Problems existing is: adopt common alloy steel to make, and in sidetracked hole, use common brill milling tool to be difficult to operation, and the shape of slot is Y shape, easily occurs blocking, wear problem.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and provide a kind of aluminium alloys cutting seam sieve tube, screen body is high-strength aluminum alloy, in sidetracked hole, uses common brill milling tool to bore out easily; Cross section, gap is compound shape in addition, improves resistance to wearing of gap.
Its technical scheme is: comprise lower contact, screen body, compound slot, top connection, described screen body adopts aluminium alloys to make, its one end is provided with lower contact, the other end is provided with top connection, screen body is distributed with many group compound slots, and described compound slot is made up of rectangular slits and trapezoidal seam, is rectangular slits at the slot that the tube wall of screen body is outer, inner slot is trapezoidal seam, and this trapezoidal seam is the shape of outer narrow inner width.
Above-mentioned compound slot is by the first matrix slot and the second matrix slot staggered.
The beneficial effects of the utility model are: screen body used is high-strength aluminum alloy material on the one hand, the common cutting seam sieve tube of mass ratio is light 2 times, workability is strong, in sidetracked hole, common brill milling tool is used to bore out easily, the crush resistance strength of this material, at more than 50Mpa, meets the resistance Compressive Strength requirement of well screen;
The cross section, gap adopted on the other hand is compound shape, be rectangle in the shape of one section of wall thickness inseam of outer tube layer, its lower end connects the trapezoidal seam of an outer narrow inner width, when there being grit to enter in gap, easily carried by becoming trapezoidal seam by crude oil, outer rectangle can improve resistance to wearing of gap.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is sectional drawings of the present utility model;
Accompanying drawing 3 is A portion enlarged drawings of Fig. 2;
In upper figure: lower contact 1, screen body 2, compound slot 3, top connection 4, rectangular slits 3.1, trapezoidal seam 3.2, first matrix slot 3a and the second matrix slot 3b.
Detailed description of the invention
1-3 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises lower contact 1, screen body 2, compound slot 3, top connection 4, and described screen body 2 adopts aluminium alloys to make, and crush resistance strength is not less than 50Mpa, and workability is better than existing API material cutting seam sieve tube greatly; One end of screen body 2 is provided with lower contact 1, the other end is provided with top connection 4, screen body 2 is distributed with many group compound slots 3, described compound slot 3 is made up of rectangular slits 3.1 and trapezoidal seam 3.2, be rectangular slits 3.1 at the slot that the tube wall of screen body 2 is outer, inner slot is trapezoidal seam 3.2, and this trapezoidal seam 3.2 is the shape of outer narrow inner width.
Wherein, compound slot 3 is by the first matrix slot 3a and the second matrix slot 3b staggered, first matrix slot 3a and the second matrix slot 3b is spaced, and the first adjacent matrix slot 3a and the second matrix slot 3b is also staggered, form equally distributed slot, this arrangement architecture avoids the blockage problem of slot, when there being grit to enter in gap, easily carried by becoming trapezoidal seam by crude oil, outer rectangle can improve resistance to wearing of gap.
In addition, screen body is that high-strength aluminum alloy material is made, and the common cutting seam sieve tube of mass ratio is light 2 times, workability is strong, in sidetracked hole, uses common brill milling tool to bore out easily, the crush resistance strength of this material, at more than 50Mpa, meets the resistance Compressive Strength requirement of well screen.
Claims (2)
1. an aluminium alloys cutting seam sieve tube, it is characterized in that: comprise lower contact (1), screen body (2), compound slot (3), top connection (4), described screen body (2) adopts aluminium alloys to make, its one end is provided with lower contact (1), the other end is provided with top connection (4), screen body (2) is distributed with many groups compound slot (3), described compound slot (3) is made up of rectangular slits (3.1) and trapezoidal seam (3.2), be rectangular slits (3.1) at the slot that the tube wall of screen body (2) is outer, inner slot is trapezoidal seam (3.2), and the shape that this trapezoidal seam (3.2) is outer narrow inner width.
2. aluminium alloys cutting seam sieve tube according to claim 1, is characterized in that: described compound slot (3) is by the first matrix slot (3a) and the second matrix slot (3b) staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085091.3U CN204436351U (en) | 2015-02-06 | 2015-02-06 | Aluminium alloys cutting seam sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085091.3U CN204436351U (en) | 2015-02-06 | 2015-02-06 | Aluminium alloys cutting seam sieve tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436351U true CN204436351U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520085091.3U Active CN204436351U (en) | 2015-02-06 | 2015-02-06 | Aluminium alloys cutting seam sieve tube |
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| CN (1) | CN204436351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285573A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand control screen |
| CN106639991A (en) * | 2016-11-28 | 2017-05-10 | 中国石油天然气股份有限公司 | Sand control screen and manufacturing method thereof |
-
2015
- 2015-02-06 CN CN201520085091.3U patent/CN204436351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285573A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand control screen |
| CN106639991A (en) * | 2016-11-28 | 2017-05-10 | 中国石油天然气股份有限公司 | Sand control screen and manufacturing method thereof |
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