CN2903364Y - Sand proof screening tube - Google Patents
Sand proof screening tube Download PDFInfo
- Publication number
- CN2903364Y CN2903364Y CN 200520143342 CN200520143342U CN2903364Y CN 2903364 Y CN2903364 Y CN 2903364Y CN 200520143342 CN200520143342 CN 200520143342 CN 200520143342 U CN200520143342 U CN 200520143342U CN 2903364 Y CN2903364 Y CN 2903364Y
- Authority
- CN
- China
- Prior art keywords
- hole
- filtering
- filtering material
- pipe
- 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 - Lifetime
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Abstract
The utility model belongs to a grit preventing filtering pipe used in oil well grit preventing technical field and comprises a base pipe 4 provided with a plurality of step through holes 7 on the pipe wall. Wherein, a filtering material 5 is arranged on the steps of the base pipe through holes 7 and an air-tight gasket 6 tightly engaged with the pipe walls of the through holes 7 is fixed on the periphery of the filtering material 5. The grit preventing filtering pipe has the following advantages. Firstly, the structure is simple which reduces the producing cost and is convenient to process. Secondly, only one metal filtering material is required, which minimizes the limitation to the filtering pipe flow by filtering structure to the most extent and improves the filtering area of the filtering pipe, thereby increasing the oil output volume. Thirdly the grit preventing effect is great and the life is prolonged.
Description
Technical field
The utility model relates to a kind of sand control installation that is used for the sand control technical field, particularly a kind of sand control screen.
Background technology
The inserted sand control screen that the exploitation of prior art PetroChina Company Limited. is used normally is drilled with a plurality of through holes on seamless steel pipe, fill out filter block then in through hole.This inserted sand control screen has two kinds of ways usually: a kind of is to adopt the metallurgical powder compacting sintering to become piece to adopt gluing being bonded in the through hole, and another kind is the filtration members that filtering material is provided with metal shell and filter bores outward to be housed in adopting be welded in the through hole.The former is because the variations in temperature of the oil mining degree of depth and certain pressure and the chemical corrosivity of down-hole oil gas can make gluing glue melt, come off.And latter's filtration members processed complex, and in welding process, be easy to damage filtration members, and same because the chemical corrosivity of down-hole oil gas causes the corrosion due to welding fracture, filter block is damaged, sand control lost efficacy, and had shortened application life.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at last art technology: and provide design a kind of simple in structure, easy to process, and good seal performance, and can improve a kind of sand control screen that the filter area sand control of screen casing is used.
A kind of sand control screen of the present utility model, it comprises the parent tube 4 of many through holes 7 that distribute on the tube wall, through hole 7 is a stepped hole, it is characterized in that being equipped with on the step of parent tube through hole 7 filtering material 5, (both on the pairing position of the step of through hole 7) is fixed with one and the close-fitting seal washer 6 of through hole 7 tube walls on filtering material 5 peripheries.
The utility model compared with prior art has following advantage: (1) need not to process in addition filtration members, only need are established a filtering material 5 on the step of the through hole 7 of parent tube, and by filtering material 5 firmly being installed on the step of through hole 7 of parent tube with the close-fitting packing ring 6 of through hole tube wall, structure is very simple, therefore convenient processing and manufacture has reduced cost of production.(2) owing to only establish a filtering material, reduced the obstruction of filtration to greatest extent, improved the filter area of screen casing, thereby effectively increased the oil productivity of oil well the screen casing overcurrent.(3) it is good also to have a sand controlling result, advantages such as long service life.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further details.
Fig. 1 is the structural representation of sand control screen of the present utility model.
Fig. 2 is the filtering material generalized section of Figure 1A-first kind of embodiment of A direction.
Fig. 3 is the filtering material generalized section of Figure 1A-second kind of embodiment of A direction.
Fig. 4 is the filtering material generalized section of Figure 1A-the third embodiment of A direction.
Fig. 5 filtering material 5 is shaped as bow type structural representation.
Fig. 6 filtering material 5 is shaped as the concave structure schematic diagram.
1. box cuplings, 2. gas thread 3. are reserved slips position 4. parent tubes, 5. screen packs, 6. packing rings, 7. through holes, 8. rivetings and are put 9. flange, 10. grooves among the figure
The specific embodiment
As shown in the figure, the utility model sand screen adopts the API sleeve pipe to make parent tube 4, many step through-holes 7 distribute on parent tube 4 tube walls, the two ends of parent tube 4 are provided with gas thread 2 and are reserved with slips position 3, it is characterized in that being equipped with on the step of parent tube through hole 7 filtering material 5, (both on the pairing position of the step of through hole 7) is fixed with one and the close-fitting seal washer 6 of through hole 7 tube walls on filtering material 5 peripheries.
Described as shown in Figure 2 sand control screen, several (common three to four) riveting point 8 is characterized in that riveting over uniformly at packing ring 6 and through hole 7 step tube wall places.Be used for reinforcing filtering material 5 and packing ring 6 and be installed in through hole 7 firmness.
Described as shown in Figure 3 sand control screen is characterized in that the tube wall on described packing ring 6 peripheries and through hole 7 steps closely cooperates, and makes packing ring 6 fixing stepped hole flange 9, fixedly secures on the step of through hole 7 equally and with filtering material 5.
Described as shown in Figure 4 sand control screen is characterized in that being provided with a groove 10 at through hole on one week of 7 step tube walls, and the packing ring 6 that buckles into stepped hole tube wall groove interior 10 is spring washer.
As shown in Figure 5 and Figure 6, described sand control screen is characterized in that the shape of filtering material 5 can be plane, bow type or matrix shape.
Claims (5)
1, a kind of sand control screen, it comprises the parent tube (4) of the many through holes (7) that distribute on the tube wall, through hole (7) is a stepped hole, it is characterized in that on the step of parent tube through hole (7), being equipped with a filtering material (5), be fixed with one and the close-fitting seal washer of through hole (7) tube wall (6) above the periphery at filtering material (5).
2, sand control screen according to claim 1, several riveting points (8) is characterized in that riveting over uniformly at packing ring (6) and through hole (7) step tube wall place.
3, sand control screen according to claim 1 is characterized in that the tube wall on described packing ring (6) periphery and through hole (7) step closely cooperates, and makes packing ring (6) fixing stepped hole flange (9).
4, sand control screen according to claim 1 is characterized in that being provided with a groove (10) on one week at through hole (7) step tube wall, and the packing ring (6) that buckles in the stepped hole tube wall groove is a spring washer.
5,, it is characterized in that described filtering material (5) can be plane, bow type or matrix shape according to claim 1,2,3 or 4 described sand control screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143342 CN2903364Y (en) | 2005-11-28 | 2005-11-28 | Sand proof screening tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143342 CN2903364Y (en) | 2005-11-28 | 2005-11-28 | Sand proof screening tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903364Y true CN2903364Y (en) | 2007-05-23 |
Family
ID=38078773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143342 Expired - Lifetime CN2903364Y (en) | 2005-11-28 | 2005-11-28 | Sand proof screening tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903364Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687265B (en) * | 2007-07-06 | 2013-05-29 | 普拉德研究及开发股份有限公司 | Manufacturing of sand screens |
| US11927082B2 (en) | 2019-02-20 | 2024-03-12 | Schlumberger Technology Corporation | Non-metallic compliant sand control screen |
-
2005
- 2005-11-28 CN CN 200520143342 patent/CN2903364Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687265B (en) * | 2007-07-06 | 2013-05-29 | 普拉德研究及开发股份有限公司 | Manufacturing of sand screens |
| US11927082B2 (en) | 2019-02-20 | 2024-03-12 | Schlumberger Technology Corporation | Non-metallic compliant sand control screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SIDASIYI ENERGY TECHNOLOGY(GROUP)CO., LTD. Free format text: FORMER OWNER: YI HUIAN Effective date: 20100528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325800 ZHEJIANG PROVINCE CANGNAN COUNTY LINGXI TOWN QIUZHI EAST ROAD NO.206CANGNAN ZHONGXING INDUSTRY CO., LTD. TO: 201611 NO.509, XIANGMIN ROAD, CHEDUN INDUSTRY DISTRICT, SONGJIANG DISTRICT, SHANGHAI CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100528 Address after: 201611 Shanghai Songjiang District Chedun Town Industrial Zone, Xiang min Road No. 509 Patentee after: STARSE Energy and Technology (Group) Co., Ltd. Address before: 325800 Zhejiang Lingxi town Cangnan County for Road No. 206 Cangnan Star Industrial Co. Ltd. Patentee before: Yi Huian |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |