CN2454540Y - Leakage finding pipe column - Google Patents
Leakage finding pipe column Download PDFInfo
- Publication number
- CN2454540Y CN2454540Y CN00260400U CN00260400U CN2454540Y CN 2454540 Y CN2454540 Y CN 2454540Y CN 00260400 U CN00260400 U CN 00260400U CN 00260400 U CN00260400 U CN 00260400U CN 2454540 Y CN2454540 Y CN 2454540Y
- Authority
- CN
- China
- Prior art keywords
- packer
- packing element
- joint
- tube
- cover
- 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
- 238000012856 packing Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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- Pipe Accessories (AREA)
Abstract
The utility model discloses a look for tubular column that leaks. The flow controller comprises a joint, a central pipe, a valve core and a valve seat, wherein rubber is vulcanized on the surface of the valve core, the packer comprises an upper joint, an inner core pipe and a lower joint which are in threaded connection to form a main body of the flow controller, a rubber cylinder and a seat sealing piston are sleeved outside the inner core pipe between the upper joint and the lower joint, and protective sleeves are arranged at two ends of the rubber cylinder. The utility model discloses can satisfy the cover and become the oil-water well that is greater than 110mm and test the needs that the cover was looked for hourglass, the resistance to destruction of packing element is strong, and the success rate of operation improves greatly earlier.
Description
The utility model relates to a kind of Tube-colume for seanching leakage area, belongs to the oil-water well downhole tool.
The Tube-colume for seanching leakage area that generally adopt present Zhongyuan Oil Field is that river 453 packers and restriction choke share.The shortcoming that this tubing string exists is: the technology one-time success rate is lower, packing element damages easily in the process of seat envelope repeatedly, restriction choke is poorly sealed, work operations amount and operating cost have been increased, and the maximum outside diameter of instrument is big, on some slight casing deformation wells, can not use this technology test the cover look for leakage.
The purpose of this utility model just provides a kind of Tube-colume for seanching leakage area, and it can satisfy cover and becomes and to test cover greater than the oil-water well of 110mm and look for leakage needs, improves the technology one-time success rate.
The purpose of this utility model is achieved in that Tube-colume for seanching leakage area is made up of restriction choke and packer two parts; restriction choke comprises joint, central tube, spool and valve seat; sulfuration has rubber on the surface of spool; packer is threaded by top connection, innermost tube, lower contact and constitutes its main body; between upper and lower joint; the outside of innermost tube is with packing element and seat envelope piston, and protective sleeve is equipped with at the two ends of packing element.
The utlity model has following advantage: 1, it can satisfy cover and becomes and to test cover greater than the oil-water well of 110mm and look for leakage needs, has solved the technology difficult problem that the part casing deformation well can not be looked for omission of examination cover; 2, by hydraulic base sealed, put the pressure deblocking, improved the anti-destructive of packing element, the seat envelope still can keep the intact of packing element repeatedly, and the seat seal pressure that improves packer guarantees that packer is in the deblocking state when playing lower tubular column; 3, the sealing of restriction choke is become steel-soft seal, sealing performance is improved greatly by steel-steel sealing.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1: Tube-colume for seanching leakage area structural representation;
Among the figure: 1-joint, 2-central tube, 3-spool, 4-valve seat, 5-top connection, 6-protective sleeve,
7-packing element, 8-innermost tube, 9-seat envelope piston, 10-lower contact;
As shown in Figure 1, Tube-colume for seanching leakage area is made up of restriction choke and packer two parts, restriction choke comprises joint 1, central tube 2, spool 3 and valve seat 4, sulfuration has rubber on the surface of spool 3, make the spool 3 and the sealing of valve seat 4 become steel-soft seal, improve the stability of sealing reliability and opening pressure by original steel-steel sealing.Packer is made up of top connection 1, packing element 7, innermost tube 8, seat envelope piston 9, lower contact 10; top connection can directly be connected with valve seat when installing at the scene; also can between restriction choke and packer, add tubing string; top connection 1, innermost tube 8, lower contact 9 are threaded and constitute the main body of packer; between top connection 1, lower contact 9; the outside of innermost tube 8 is with packing element 7 and seat envelope piston 9, and protective sleeve 6 is equipped with at the two ends of packing element 7.
During use restriction choke and packer are connected the back G.I.H, close sleeve gate, suppress from oil pipe, under the effect of fluid pressure, seat envelope piston 9 is up, compression packer packing element 7, make packing element 7 expanded radiallys, when pressure rose to 4MPa, packing element 7 was close to the bobbin seal oil sets annular space, finish envelope just, when tubing pressure continued to rise above 5MPa, the spool 3 on the restriction choke was opened, and liquid enters the above oil sets annular space of packer, make casing pressure rise to design pressure, pressure measurement is fallen with water absorption and is judged the casing leakage situation.As long as oil jacket pressure reduction is greater than 4MPa, the Y344-110 packer is Seal Oil cover annular space effectively, the opening pressure of Φ 100 restriction chokes is 5MPa, so packer is in sealing state all the time when looking for Lou, so can judge whether sleeve pipe misses by the pressure drop and the water absorption of sleeve pipe.Because the seat seal pressure of Y344-110 packer is higher, therefore easier deblocking, packing element is difficult for pulling when playing lower tubular column, and compression type packer tubling is anti-destroys byer force, thereby the seat envelope still can guarantee good sealing property repeatedly.
Claims (1)
1, a kind of Tube-colume for seanching leakage area is made up of restriction choke and packer two parts; restriction choke comprises joint (1), central tube (2), spool (3) and valve seat (4); it is characterized in that: sulfuration has rubber on the surface of spool (3); packer is threaded by top connection (1), innermost tube (8), lower contact (9) and constitutes its main body; between top connection (1), lower contact (9); the outside of innermost tube (8) is with packing element (7) and seat envelope piston (9), and protective sleeve (6) is equipped with at the two ends of packing element (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00260400U CN2454540Y (en) | 2000-11-21 | 2000-11-21 | Leakage finding pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00260400U CN2454540Y (en) | 2000-11-21 | 2000-11-21 | Leakage finding pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454540Y true CN2454540Y (en) | 2001-10-17 |
Family
ID=33616208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00260400U Expired - Fee Related CN2454540Y (en) | 2000-11-21 | 2000-11-21 | Leakage finding pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454540Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109280B (en) * | 2007-08-17 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Test device for down-hole drop ply position |
| CN106522930A (en) * | 2015-09-09 | 2017-03-22 | 中国石油天然气股份有限公司 | Leakage finding device for oil well pipe wall |
| CN109538194A (en) * | 2017-09-18 | 2019-03-29 | 中国石油化工股份有限公司 | Leakage process pipe string and application method are quickly looked in a kind of coiled tubing underground |
| CN111894560A (en) * | 2020-08-14 | 2020-11-06 | 中国石油化工股份有限公司 | Leakage detection and plugging method while drilling in drilling process |
| CN112746827A (en) * | 2021-02-07 | 2021-05-04 | 中国石油化工股份有限公司 | Packer, pipe column and method for quickly finding leakage of whole shaft |
| CN113494288A (en) * | 2020-04-08 | 2021-10-12 | 中国石油天然气股份有限公司 | Oil pipe leakage finding method and well repairing method |
-
2000
- 2000-11-21 CN CN00260400U patent/CN2454540Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109280B (en) * | 2007-08-17 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Test device for down-hole drop ply position |
| CN106522930A (en) * | 2015-09-09 | 2017-03-22 | 中国石油天然气股份有限公司 | Leakage finding device for oil well pipe wall |
| CN106522930B (en) * | 2015-09-09 | 2019-07-05 | 中国石油天然气股份有限公司 | Leakage finding device for oil well pipe wall |
| CN109538194A (en) * | 2017-09-18 | 2019-03-29 | 中国石油化工股份有限公司 | Leakage process pipe string and application method are quickly looked in a kind of coiled tubing underground |
| CN109538194B (en) * | 2017-09-18 | 2023-04-18 | 中国石油化工股份有限公司 | Coiled tubing underground quick leakage finding process pipe column and using method |
| CN113494288A (en) * | 2020-04-08 | 2021-10-12 | 中国石油天然气股份有限公司 | Oil pipe leakage finding method and well repairing method |
| CN113494288B (en) * | 2020-04-08 | 2023-08-22 | 中国石油天然气股份有限公司 | Oil pipe leakage finding method and well repairing method |
| CN111894560A (en) * | 2020-08-14 | 2020-11-06 | 中国石油化工股份有限公司 | Leakage detection and plugging method while drilling in drilling process |
| CN111894560B (en) * | 2020-08-14 | 2023-11-14 | 中国石油化工股份有限公司 | Leakage-detection-while-drilling plugging method in drilling process |
| CN112746827A (en) * | 2021-02-07 | 2021-05-04 | 中国石油化工股份有限公司 | Packer, pipe column and method for quickly finding leakage of whole shaft |
| CN112746827B (en) * | 2021-02-07 | 2022-08-09 | 中国石油化工股份有限公司 | Packer, pipe column and method for quickly finding leakage of whole shaft |
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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 |