CN2164895Y - Corrosion-resistant wire tube filtering element for sand - Google Patents
Corrosion-resistant wire tube filtering element for sand Download PDFInfo
- Publication number
- CN2164895Y CN2164895Y CN 93227904 CN93227904U CN2164895Y CN 2164895 Y CN2164895 Y CN 2164895Y CN 93227904 CN93227904 CN 93227904 CN 93227904 U CN93227904 U CN 93227904U CN 2164895 Y CN2164895 Y CN 2164895Y
- Authority
- CN
- China
- Prior art keywords
- sand
- stainless steel
- hole
- steel tube
- corrosion
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a corrosion-resistant wire tube with filtering element for sand, comprising a stainless steel tube whose peripheral pipe wall is all provided with through holes. The through holes are filled with filter materials formed through the extrusion of wires and short threads. The utility model has good toughness, counter bending performance, and high permeation rate which is about 20 times of powder filtration, is suitable for the characteristics of the early sand prevention in early stage, middle stage and later stage of various wells, and has the advantages of low cost, long service life, stable performance, etc.
Description
The utility model belongs to the filter plant technical field, and is specifically a kind of in the oil exploitation operation, is used for the micropore antiseptic sand-proof filter of oil, gas well and deep well.
The oil-sand isolated by filtration be in the petroleum industry oil producing operation the technical problem that must solve.The filter that is used for well sand control and pump sand control at present mainly contains two kinds: a kind of is to adopt outer wall to twine the screen pipe of stainless steel wire, crude oil filters by the slit, its shortcoming is that cost height (by import), slit are easily stopped up, the distortion of steel wire rapid wear, and can only disposablely use; Another kind is to adopt the stainless steel tube of band through hole and the micro porous filtration oil-sand separator tube that powder metallurgy is manufactured, advantages such as cost is low although this filter has, renewable use, but dusty material easily comes off when certain deformation is crooked, permeability is lower in addition, influence crude output, therefore also only be applicable to the sand control in early stage of oil gas well.
The purpose of this utility model provides a kind of permeability height, be applicable to oil gas well early stage, the anticorrosion sand screen of wire of mid-term and final sand-proofing.
The purpose of this utility model is achieved in that it includes a stainless steel tube, uniform through hole on the peripheral tube wall of stainless steel tube, the filtering material that it is characterized in that being filled with wire in through hole or lack the silk extrusion modling.Can have external screw thread at the two ends of stainless steel tube as required, through hole can be circle, square.
The utility model is because the employing seamless steel pipe is a fertile material, have through hole on tube wall, the through hole of filtration is regulated at will as required, and the wire of filling or short silk need add binder, curing agent in through hole, repressed being molded in the through hole is after the high temperature sintering moulding.Therefore this structure has good toughness, counter-bending, permeability is higher than the about 20 times advantage of powder filter, and it is applicable to early stage, mid-term and the final sand-proofing of various wells, is specially adapted to the sand control of heavy oil wells.The utility model has also that cost is low, long service life, stable performance, characteristics such as applied widely.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation that partly cuts open of the present utility model.
By shown in Figure 1,1 is stainless steel tube, has external screw thread 2 at the two ends of stainless steel tube, is evenly equipped with ellipse hole 3 on the peripheral tube wall of stainless steel tube, is filled with the filtering material 4 of wire or the compression moulding of short silk in through hole.This filtering material is after being mixed by the wire of 5-500 millimeters long and forming agent, curing agent and anticorrisive agent, in forcing press is compressed on ellipse hole, to make through the disposable sintering of high temperature sintering electric furnace again.During use, select the sand screen of different size as required, can be with several or tens of anti-sand screens down to oil, gas well oil layer section down, by be connected in one structure and be fixed on the section of recovering the oil and get final product of nipple, also can be following to underground, deep well sand control filtration usefulness.
Claims (3)
1, a kind of anticorrosion sand screen of wire that is applicable to downhole oil interval and well sand control, it includes a stainless steel tube, is evenly equipped with through hole on the peripheral tube wall of stainless steel tube, it is characterized in that being filled with in through hole the filtering material of wire or the extrusion modling of short silk.
2, the anticorrosion sandpipe of wire according to claim 1 is characterized in that having external screw thread at the two ends of stainless steel tube.
3, the anticorrosion sandpipe of wire according to claim 1 is characterized in that through hole is circular, square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227904 CN2164895Y (en) | 1993-04-16 | 1993-04-16 | Corrosion-resistant wire tube filtering element for sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227904 CN2164895Y (en) | 1993-04-16 | 1993-04-16 | Corrosion-resistant wire tube filtering element for sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2164895Y true CN2164895Y (en) | 1994-05-18 |
Family
ID=33805068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93227904 Expired - Fee Related CN2164895Y (en) | 1993-04-16 | 1993-04-16 | Corrosion-resistant wire tube filtering element for sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2164895Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260797B (en) * | 2008-04-18 | 2011-05-18 | 史玉钊 | Filtering material for oil well sand preventing screen pipe and method for making same |
| CN112664167A (en) * | 2019-10-15 | 2021-04-16 | 中国石油天然气股份有限公司 | Pore filter valve, quantitative gas injection pipe, device and stable gas injection method for horizontal well |
-
1993
- 1993-04-16 CN CN 93227904 patent/CN2164895Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260797B (en) * | 2008-04-18 | 2011-05-18 | 史玉钊 | Filtering material for oil well sand preventing screen pipe and method for making same |
| CN112664167A (en) * | 2019-10-15 | 2021-04-16 | 中国石油天然气股份有限公司 | Pore filter valve, quantitative gas injection pipe, device and stable gas injection method for horizontal well |
| CN112664167B (en) * | 2019-10-15 | 2022-12-02 | 中国石油天然气股份有限公司 | Pore filter valve, quantitative gas injection pipe, device and stable gas injection method for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |