CN2263710Y - Oil sand separating sieve tube - Google Patents
Oil sand separating sieve tube Download PDFInfo
- Publication number
- CN2263710Y CN2263710Y CN 96225933 CN96225933U CN2263710Y CN 2263710 Y CN2263710 Y CN 2263710Y CN 96225933 CN96225933 CN 96225933 CN 96225933 U CN96225933 U CN 96225933U CN 2263710 Y CN2263710 Y CN 2263710Y
- Authority
- CN
- China
- Prior art keywords
- separating sieve
- oil
- holes
- utility
- sand separating
- 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
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- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a novel oil sand separating sieve pipe, which comprises a seamless steel pipe with ladder-shaped holes and screw threads on both ends. The utility model is characterized in that a guard sheet with holes welded on the steel pipe is respectively arranged on a bottom ladder and a top part ladder. A stainless steel flattened wire is filled between two guard sheets with holes. The utility model has the advantages of simple structure, low cost, high temperature resistance, high voltage resistance, good filtering effect, etc. Filtering materials are not easy to fall off.
Description
The utility model belongs to oil field down-hole oil production equipment technical field, the oil-sand Separating sieve tube that specifically a kind of recover petroleum, natural gas are used.
We know that the sand control problem of oil well, gas well in order to prevent the wear problem of pumping equipment, just must be resolved in the oil field in the process of recover petroleum, natural gas.The professional and technical personnel is in order to address this problem also corresponding a large amount of effort of having done, successively mainly developed and adopted the repressed sintering of metallurgical powder and filter pipe of making and the oil-sand strainer that on seamless steel pipe, is evenly distributed with filter bores, this strainer is to adopt stainless steel wire as filtering material, will put to the seamless steel pipe filter bores behind the stainless steel wire briquet.The former above-mentioned intensity is lower, and application life is short; The latter is because of the pressure height of oil well down-hole, and the time one, long steel wire was easy to be extruded in the filter bores.Therefore two kinds of above-mentioned oil-sand eliminators are also very imperfect.
The purpose of this utility model provides the novel oil-sand Separating sieve tube of a kind of rational in infrastructure, high temperature high voltage resistant, filtering material difficult drop-off, long service life.
The purpose of this utility model is achieved in that it includes and is evenly distributed with the screwed seamless steel pipe of stepped bore and two ends, it is characterized in that being respectively arranged with a catch with holes that is welded on the steel pipe on bottom ladder in tapering type pair of stepped bore and the top ladder, between two catch with holes, be filled with by the stainless steel flat filament of random compacting.Above-mentioned stepped bore is a circular port, also can be slotted eye.
The utility model compared with prior art, have simple in structure, cost is low, high temperature high voltage resistant, filtration characteristics such as good, the filtering material difficult drop-off of fruit.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a kind of structural representation of the present utility model
Fig. 2 is an another kind of structural representation of the present utility model
Fig. 3 is the stairstepping filter bores amplification profile of Fig. 1 or Fig. 2
Shown in Fig. 1 and 3, concrete structure of the present utility model is to be evenly distributed with tapering type pair of stairstepping circular hole 3 and two ends are threaded 1 seamless steel pipe 2, be respectively arranged with a catch with holes 4 and 6 that is welded on the steel pipe 2 on bottom ladder in tapering type pair of stepped bore and the top ladder, the aperture of two catch is the 3-6 millimeter, is filled with between two catch with holes 4 and 6 by the stainless steel flat filament 5 of random compacting (or adopting metallic fiber).The structure of Fig. 2 is identical with Fig. 1, be tapering type pair of stepped bore be slotted eye 7.Mode of occupation is identical with existing oil-sand strainer.
Claims (3)
1, the novel oil-sand Separating sieve tube of down-hole, a kind of oil field use, it includes and is evenly distributed with the screwed seamless steel pipe of stepped bore and two ends, it is characterized in that being respectively arranged with a catch with holes that is welded on the steel pipe on bottom ladder in tapering type pair of stepped bore and the top ladder, between two catch with holes, be filled with by the stainless steel flat filament of random compacting.
2, oil-sand Separating sieve tube according to claim 1 is characterized in that stepped bore is a circular port, also can be slotted eye.
3, oil-sand Separating sieve tube according to claim 1, the aperture that it is characterized in that catch is the 3-6 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225933 CN2263710Y (en) | 1996-04-18 | 1996-04-18 | Oil sand separating sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225933 CN2263710Y (en) | 1996-04-18 | 1996-04-18 | Oil sand separating sieve tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2263710Y true CN2263710Y (en) | 1997-10-01 |
Family
ID=33904473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225933 Expired - Fee Related CN2263710Y (en) | 1996-04-18 | 1996-04-18 | Oil sand separating sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2263710Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932235B (en) * | 2006-09-30 | 2010-04-14 | 张希茂 | Oil collecting casing connecting device |
| CN109184784A (en) * | 2018-07-20 | 2019-01-11 | 中国地质调查局西安地质调查中心 | Based on the synchronous filling system of fully mechanized mining gangue for mitigating coal mining subsidence area degree and method |
-
1996
- 1996-04-18 CN CN 96225933 patent/CN2263710Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932235B (en) * | 2006-09-30 | 2010-04-14 | 张希茂 | Oil collecting casing connecting device |
| CN109184784A (en) * | 2018-07-20 | 2019-01-11 | 中国地质调查局西安地质调查中心 | Based on the synchronous filling system of fully mechanized mining gangue for mitigating coal mining subsidence area degree and method |
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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 |