CN2276073Y - Screen pipe for separating oil and sand - Google Patents
Screen pipe for separating oil and sand Download PDFInfo
- Publication number
- CN2276073Y CN2276073Y CN 96238147 CN96238147U CN2276073Y CN 2276073 Y CN2276073 Y CN 2276073Y CN 96238147 CN96238147 CN 96238147 CN 96238147 U CN96238147 U CN 96238147U CN 2276073 Y CN2276073 Y CN 2276073Y
- Authority
- CN
- China
- Prior art keywords
- hole
- steel pipe
- seamless steel
- oil
- cylinder
- 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
Landscapes
- Filtering Materials (AREA)
Abstract
The utility model relates to a screen pipe for separating oil and sand under oilfield wells, which comprises a seamless steel pipe, wherein through holes are uniformly distributed on the pipe wall of the seamless steel pipe, internal screw threads are arranged on one end of the seamless steel pipe and external screw threads are arranged on the other end of the seamless steel pipe. The utility model is characterized in that the through holes are through holes with screw threads. A cylinder filtering block is connected with the internal screw threads of the through holes, and inclined snap ring grooves are symmetrically arranged on both sides of the seamless steel pipe. Compared with the prior art, the utility model has the characteristics of simple structure, low cost, high temperature resistance, high pressure resistance, good filtering effect, little possibility of falling off of filtering materials, etc., and the cylinder filtering block can be replaced at any time. Because the inclined snap ring grooves are added, the screen pipe can enter and exit the well favorably and the operation is also convenient.
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.
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, successively 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 be contained in the seamless steel pipe filter bores behind the stainless steel wire briquet.The former 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.In order to solve the problem of above-mentioned existence, the applicant and on April 18th, 96 have been applied for one (novel oil-sand Separating sieve tube) to the tame Patent Office of figure, application number is 96225933.0, the two ends of filter bores are welded with two catch with holes, be filled with by the stainless steel flat filament of random compacting between two catch with holes, but very imperfect, technology is complicated, processing cost is high.Original in addition annular slot is that straight trough does not have lead angle, and its structure is also unreasonable, and is easily stuck by sand bridge, makes and puies forward difficulty on the sandpipe, screen casing can be broken when serious.
The purpose of this utility model provides that a kind of rational in infrastructure, high temperature high voltage resistant, filtering material do not come off, the novel oil-sand eliminator of long service life.
The purpose of this utility model is achieved in that it comprises that it is internal thread and the other end is externally threaded seamless steel pipe that even tube wall is distributed with through hole and an end, it is characterized in that through hole is threaded through hole, be connected with a cylinder filter block at the through hole internal thread, a symmetrical oblique annular groove respectively is set in the both sides of seamless steel pipe.Its concrete structure of above-mentioned filter block is: in through hole, be provided with a band external screw thread, in be filled with the staving that stainless steel flat filament and bottom have filter bores, be set with a band filter bores end cap in the outer end of staving; It also can be the also screwed independent cylindrical structure that adopts metallic flat wires or wire lath compacting.
The utility model compared with prior art, have simple in structure, cost is low, high temperature high voltage resistant, filtration good, the filtering material difficult drop-off of fruit, and this cylinder filter block such as can change at any time at characteristics.Owing to increased oblique annular groove, make that screen casing discrepancy well is smooth, operation is also convenient.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is that structural representation cuts open in office of the present utility model
Fig. 2 is that the seamless steel pipe of Fig. 1 filters the through hole amplification profile
Shown in Fig. 1 and 2, concrete structure of the present utility model is: being distributed with through hole 4 and an end in an even tube wall is the external screw thread 2 and other end is the seamless steel pipe 1 of internal thread 5, this through hole 4 is threaded through hole, be connected with the staving 6 (cylinder filter block) that the stainless steel flat filament 8 that is filled with random compacting in one and bottom have filter bores at through hole 4 internal threads, be fixedly welded with the end cap 7 of a band filter bores in the outer end of staving 6.One symmetrical oblique annular groove 3 respectively is set in the both sides of seamless steel pipe.Mode of occupation is identical with existing oil-sand filter sieve tube.Above-mentioned cylinder filter block can adopt the metallic flat wires of press forming or wire lath to make, and also can adopt thermal sintering and screwed powder metallurgy to make.
Claims (4)
1, the oil-sand Separating sieve tube of down-hole, a kind of oil field use, it comprises that it is internal thread and the other end is externally threaded seamless steel pipe that even tube wall is distributed with through hole and an end, it is characterized in that through hole is threaded through hole, be connected with a cylinder filter block at the through hole internal thread, a symmetrical oblique annular groove respectively is set in the both sides of seamless steel pipe.
2, oil-sand Separating sieve tube according to claim 1, it is characterized in that this cylinder filter block be in through hole, be provided with a band external screw thread, in be filled with the staving that stainless steel flat filament and bottom have filter bores, be set with a band filter bores end cap in the outer end of staving.
3, oil-sand Separating sieve tube according to claim 1 is characterized in that this cylinder filter block is the also screwed independent cylinder that adopts metallic flat wires or wire lath compacting.
4, oil-sand Separating sieve tube according to claim 1 is characterized in that this cylinder filter block is the screwed independent cylinder that adopts powder metallurgy shaping sintering to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238147 CN2276073Y (en) | 1996-08-16 | 1996-08-16 | Screen pipe for separating oil and sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238147 CN2276073Y (en) | 1996-08-16 | 1996-08-16 | Screen pipe for separating oil and sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2276073Y true CN2276073Y (en) | 1998-03-11 |
Family
ID=33913533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96238147 Expired - Fee Related CN2276073Y (en) | 1996-08-16 | 1996-08-16 | Screen pipe for separating oil and sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2276073Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574494A (en) * | 2014-07-30 | 2017-04-19 | 3M创新有限公司 | Separating device for removing solid particles from liquid and gas flows for high differential pressures |
-
1996
- 1996-08-16 CN CN 96238147 patent/CN2276073Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574494A (en) * | 2014-07-30 | 2017-04-19 | 3M创新有限公司 | Separating device for removing solid particles from liquid and gas flows for high differential pressures |
| US10415351B2 (en) | 2014-07-30 | 2019-09-17 | 3M Innovative Properties Company | Separating device for removing solid particles from liquid and gas flows for high differential pressures |
| CN106574494B (en) * | 2014-07-30 | 2019-10-11 | 3M创新有限公司 | For from liquids and gases stream removing solid particles with the separator for High Pressure Difference |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2276073Y (en) | Screen pipe for separating oil and sand | |
| CN108662221A (en) | A kind of metallurgical furnace automatic exhaust device being conveniently replaceable pipeline | |
| CN103055625A (en) | Ceramic membrane tube sealing structure | |
| CN2263710Y (en) | Oil sand separating sieve tube | |
| CN2269462Y (en) | Sperator for oil and sand | |
| CN2164895Y (en) | Corrosion-resistant wire tube filtering element for sand | |
| CN2139989Y (en) | Sand filter for oil, gas, water well | |
| CN209444316U (en) | A kind of pipe column type sand control screen | |
| CN202277792U (en) | Ceramic membrane tube sealing structure | |
| CN214439351U (en) | Vibration screening device for graphite product production | |
| CN2215018Y (en) | High-temp. sintered metal-ceramic composite filter | |
| CN2226144Y (en) | High-temp-and high-pressure-resistant integrated sieve tube | |
| CN217092352U (en) | Spice extracting solution filtering device | |
| CN2464934Y (en) | Filter for underground extracting liquid | |
| CN206366563U (en) | A kind of multicore wire drawing die | |
| CN101544495A (en) | Light weight alloy ceramic body for die | |
| CN2816350Y (en) | Integrated sand-proof screening tube | |
| CN2103637U (en) | Microporous corrosion-proof pipe for separating sand from oil | |
| CN217531819U (en) | Screen changer assembly | |
| CN215549651U (en) | Building concrete pipe pile grouting device | |
| CN217698397U (en) | Oil-gas collecting and separating device | |
| CN214441926U (en) | Copper aluminium extruder is used in processing of paper package copper stranded conductor convenient to installation | |
| CN2428568Y (en) | Sand-prevention screening tube | |
| CN2484374Y (en) | Prestress extruded fixed-end ground tackle | |
| CN208554985U (en) | A kind of rare earth screening plant |
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 |