CN2742131Y - Stainless steel irregular hole type composite filter mud sand-proof tube - Google Patents
Stainless steel irregular hole type composite filter mud sand-proof tube Download PDFInfo
- Publication number
- CN2742131Y CN2742131Y CN 200420108466 CN200420108466U CN2742131Y CN 2742131 Y CN2742131 Y CN 2742131Y CN 200420108466 CN200420108466 CN 200420108466 CN 200420108466 U CN200420108466 U CN 200420108466U CN 2742131 Y CN2742131 Y CN 2742131Y
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- stainless steel
- filter
- tube
- oil
- composite filter
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Abstract
The utility model provides a stainless steel irregular hole type composite filter mud sand-proof tube, comprising a protective tube, a clamp, intensity nets, a parent tube, a plug cap, a protective cap and a coupler, which is characterized in that a stainless steel composite filter tube is positioned between the protective tube and the intensity net. The stainless steel composite filter tube adopts the structure of 2-5 superimposed layers of stainless steel filter nets. The grid of the multilayer stainless steel filter nets in each layer can be square, round, oval, triangular or trapezoid. The adoption of stainless steel composite filter tube superimposed by the multilayer stainless steel filter nets raises rate of oil permeation, and substantially enhances intensity of filter nets. The variation of shape and superimposition of the filter screen grids can filter out fine sands based upon geological situation of oil field, and decrease cost of petroleum production, with wide application in thick oil well (for thermal production), thin oil well and oil and gas well, particularly adequate for inclination directional well and various horizontal wells.
Description
Technical field
The utility model belongs to oil field oil recovery equipment, and the different pass combined type of particularly a kind of stainless steel filter mud is prevented sandpipe.
Background technology
The oilfield exploitation oil will use anti-sandpipe, is used for the silt that the filtering oil is carried secretly.Common anti-sandpipe is made up of intensity net, cock cap, helmet and the box cupling of outer layer protection sleeve pipe, expanded metals formula sand screen, parent tube, parent tube; expanded metals formula sand screen is one deck expanded metals; its shortcoming is that filter space is little, intensity is low, compressive property is poor; low, the easy obstruction of oil penetrating rate; and it is bad to tiny sand filtration effect; application life is short, thereby has strengthened cost for oil production.Utility model patent ZL03240416.6 " stainless steel plate mesh bellows-type sand control chimney filter " discloses a kind of scheme that adopts bellows to replace dull and stereotyped net, promotes undesirable at present.
Summary of the invention
The purpose of this utility model provide a kind of adopt the compound chimney filter of stainless steel, filter area is big, intensity is high, oil penetrating rate is high, long service life, but the anti-sandpipe of the different pass combined type of the stainless steel filter mud of the tiny grains of sand of filtering simultaneously.
According to the anti-sandpipe of the different pass combined type of stainless steel of the present utility model filter mud, comprise pillar, clip, intensity net, parent tube, cock cap, helmet and box cupling, it is characterized in that between pillar and intensity net, being provided with the compound chimney filter of stainless steel.
According to the utility model, the compound chimney filter of described stainless steel is the structure of 2-5 layer stainless steel filtering net stack.
According to the utility model, each metafiltration net grid of the compound chimney filter of described stainless steel can be square, circular, oval, triangle or trapezoidal.
According to the utility model, the compound chimney filter optimum structure of described stainless steel is the structure of 2 or 3 layers of stainless steel filtering net stack.
The utility model has the advantages that: owing to adopt the compound chimney filter of stainless steel of multilayer stainless steel filtering net stack, enlarged filter area significantly, manifest thereby reduced to stop up, improved oil penetrating rate, and significantly improved the intensity of filter screen, thereby improved anti-pressure ability, changed the shape of screen pack grid and made up stack according to the oil field geologic situation simultaneously, very tiny sand filtration can have been fallen.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in the figure, the different pass combined type of stainless steel of the present utility model filter mud is prevented sandpipe, comprises pillar 1, clip 2, intensity net 4, parent tube 5, cock cap 6, helmet 7 and box cupling 8, is characterised in that to be provided with the compound chimney filter 3 of stainless steel between pillar 1 and intensity net 4; The compound chimney filter 3 of stainless steel is the structure of 2-5 layer stainless steel filtering net stack, and compound chimney filter 3 each the metafiltration net grid of stainless steel can be square, circular, oval, triangle or trapezoidal.
In concrete enforcement, can adopt the stainless steel filtering net stack of different grids, reach the purpose of the different big or small grains of sand of filtering, compound chimney filter 3 optimum structures of stainless steel are the structure of 2 or 3 layers of stainless steel filtering net stack.
According to the anti-sandpipe of the different pass combined type of stainless steel of the present utility model filter mud, owing to adopt the compound chimney filter of stainless steel of multilayer stainless steel filtering net stack, enlarged filter area significantly, manifest thereby reduced to stop up, improved oil penetrating rate, and significantly improved the intensity of filter screen, thereby improved anti-pressure ability, change the shape of screen pack grid and made up stack according to the oil field geologic situation simultaneously, very tiny sand filtration can be fallen, reduce the cost of winning of oil, be applicable to heavy oil wells (thermal recovery), the thin oil well, the oil gas well is specially adapted to marine gradient directional well and various horizontal well.
Claims (4)
1, the anti-sandpipe of the different pass combined type of a kind of stainless steel filter mud, comprise pillar (1), clip (2), intensity net (4), parent tube (5), cock cap (6), helmet (7) and box cupling (8), it is characterized in that between pillar (1) and intensity net (4), being provided with the compound chimney filter of stainless steel (3).
2, the anti-sandpipe of the different pass combined type of stainless steel according to claim 1 filter mud is characterized in that the structure of the compound chimney filter of described stainless steel (3) for the stack of 2-5 layer stainless steel filtering net.
3, the anti-sandpipe of the different pass combined type of stainless steel according to claim 2 filter mud is characterized in that each metafiltration net grid of the compound chimney filter of described stainless steel (3) can be square, circular, oval, triangle or trapezoidal.
4, the anti-sandpipe of the different pass combined type of stainless steel according to claim 2 filter mud is characterized in that the compound chimney filter of described stainless steel (3) optimum structure is the structure of 2 or 3 layers of stainless steel filtering net stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108466 CN2742131Y (en) | 2004-10-25 | 2004-10-25 | Stainless steel irregular hole type composite filter mud sand-proof tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108466 CN2742131Y (en) | 2004-10-25 | 2004-10-25 | Stainless steel irregular hole type composite filter mud sand-proof tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742131Y true CN2742131Y (en) | 2005-11-23 |
Family
ID=35477602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108466 Expired - Fee Related CN2742131Y (en) | 2004-10-25 | 2004-10-25 | Stainless steel irregular hole type composite filter mud sand-proof tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2742131Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291256A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Double-pipe petroleum screen |
| CN103328763A (en) * | 2010-12-17 | 2013-09-25 | 哈里伯顿能源服务公司 | Sand control screen assembly having a compliant drainage layer |
-
2004
- 2004-10-25 CN CN 200420108466 patent/CN2742131Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328763A (en) * | 2010-12-17 | 2013-09-25 | 哈里伯顿能源服务公司 | Sand control screen assembly having a compliant drainage layer |
| CN103328763B (en) * | 2010-12-17 | 2016-10-12 | 哈里伯顿能源服务公司 | There is the sand control screen assembly of compliance drainage blanket |
| CN103291256A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Double-pipe petroleum screen |
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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 |