CN2422447Y - Ceramic sheet type sand-proof sieve tube - Google Patents
Ceramic sheet type sand-proof sieve tube Download PDFInfo
- Publication number
- CN2422447Y CN2422447Y CN 99249517 CN99249517U CN2422447Y CN 2422447 Y CN2422447 Y CN 2422447Y CN 99249517 CN99249517 CN 99249517 CN 99249517 U CN99249517 U CN 99249517U CN 2422447 Y CN2422447 Y CN 2422447Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- sand
- base tube
- sand control
- 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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- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
The utility model relates to a ceramic sheet type sand-proof sieve tube, which is composed of a base tube 1, a sand-proof unit 2, and a binding body 3, wherein, the sand-proof unit 2 is inlaid on a mesh of the base tube 1; the circumference is cast to form an integral body through the binding body 3. Because of using the mesh base tube and a ceramic filtering sand-proof structure, the utility model can effectively prevent fine silt from entering an oil tube. The utility model has the advantages of reasonable design, simple structure, low cost, and long service life, and the utility model is difficult to plug, and has a self-cleaning character; the form of pore space is narrow exterior and wide interior. With the special structure of the base tube, the base tube is contracted in a radial direction under the action of tension, and the utility model is convenient for salvage procedure.
Description
The utility model relates to a kind of oilfield down-hole sand preventing tool that is used for, particularly a kind of ceramic pad type sand control screen.
In the recovery process of sandstone oil reservoir, often run into the sand production problem, influence the oil well ordinary production to some extent, serious even cause sleeve pipe to damage, oil well is scrapped, therefore once various sand control screens appearred in development, wherein mainly comprised: multiclass screen casings such as cutting seam sieve tube, wire-wrapped screen, metal wool screen casing, TBS screen casing, powder metallurgy screen casing, but these screen casings are more expensive because of raw material, the processing technology complexity, cost of production is higher.Also have these screen casing ubiquities can not prevent fine silt or production later stage blocking problem.
The purpose of this utility model is to provide a kind of ceramic pad type sand control screen, and it makes simple, and is with low cost, can prevent that fine silt from invading simultaneously effectively and the obstruction that causes.
The purpose of this utility model is to realize like this, it is made up of parent tube (1) and sand control unit (2), convered structure (3), parent tube (1) is the tubular steelframe of porous mesh, sand control unit (2) is the high infiltration of a porous sintered ceramic, sand control unit (2) is embedded on parent tube (1) mesh, is that convered structure (3) is cast in one all around.
The utility model can stop fine silt to enter in the oil pipe owing to adopted mesh parent tube and ceramic filter sand control structure effectively, and it is reasonable in design, simple in structure, with low cost, the hole form is outer narrow inner width, be difficult for stopping up, have self-cleaning, improve application life greatly.The special construction of parent tube makes its radial contraction when being subjected to pulling force, is convenient to fishing.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
This ceramic pad type sand control screen is to be formed by convered structure 3 casting by parent tube 1 and several sand control unit 2, and parent tube 1 is a porous mesh-shape cast steelframe, is difficult for stopping up, and has self-cleaning, improves application life greatly.The special construction of parent tube, make its radial contraction when being subjected to pulling force, be convenient to fishing, sand control unit 2 is many little high osmosis sintered ceramics, the hole form is outer narrow inner width, is embedded on parent tube 1 mesh, is that convered structure 3 is cast in one all around, sand control unit 2 can play the sand control effect of oil excessively, at the two ends of parent tube the connection screw thread is arranged.
Claims (2)
1, a kind of ceramic pad type sand control screen, it is made up of parent tube (1) and sand control unit (2), convered structure (3), it is characterized in that: parent tube (1) is the tubular steelframe of porous mesh, sand control unit (2) is the high infiltration of a porous sintered ceramic, sand control unit (2) is embedded on parent tube (1) mesh, is that convered structure (3) is cast in one all around.
2, ceramic pad type sand control screen according to claim 1 is characterized in that: the hole form of described sand control unit (2) is outer narrow inner width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99249517 CN2422447Y (en) | 1999-10-15 | 1999-10-15 | Ceramic sheet type sand-proof sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99249517 CN2422447Y (en) | 1999-10-15 | 1999-10-15 | Ceramic sheet type sand-proof sieve tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422447Y true CN2422447Y (en) | 2001-03-07 |
Family
ID=34034467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99249517 Expired - Fee Related CN2422447Y (en) | 1999-10-15 | 1999-10-15 | Ceramic sheet type sand-proof sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422447Y (en) |
-
1999
- 1999-10-15 CN CN 99249517 patent/CN2422447Y/en not_active Expired - Fee Related
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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 |