CN201059175Y - Polymer flooding eccentric sealing check sealing section - Google Patents
Polymer flooding eccentric sealing check sealing section Download PDFInfo
- Publication number
- CN201059175Y CN201059175Y CNU2007201290011U CN200720129001U CN201059175Y CN 201059175 Y CN201059175 Y CN 201059175Y CN U2007201290011 U CNU2007201290011 U CN U2007201290011U CN 200720129001 U CN200720129001 U CN 200720129001U CN 201059175 Y CN201059175 Y CN 201059175Y
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- CN
- China
- Prior art keywords
- leather cup
- cup
- main body
- eccentric
- leather
- 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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- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
A polymer-flooding eccentric sealing check seal section mainly solves the problem of poor sealing effect of the prior eccentric sealing check seal section. The utility model is characterized in that a leather cup inner body (4) is sheathed with a leather cup connecting sleeve (6), two ends of a lower leather cup (2) are respectively fixed on a leather cup base (1) and the leather cup connecting sleeve (6) through pressure caps (7), and an upper leather cup (8) is fixed between the leather cup connecting sleeve (6) and the leather cup inner body (4) through the pressure cap (7). The polymer-flooding eccentric sealing check seal section has the characteristics of good sealing effect and convenient detachment.
Description
Technical field:
The utility model relates to the poly-drive injection well tubing string in a kind of oil field used in the oil recovery field, oil field and tests the envelope instrument, especially poly-ly drives off-centre and tests the envelope seal section.
Background technology:
The at present poly-branch that drives injects the well ratio and accounts for oil reservoir and divide more than 1/3rd of layered scheme more than three layers, and existing water injection through tubing and casing and two-tube dispensing have only realized two layers of dispensing, in addition, though annular relief groove dispensing realizes the multi-section multi-layer layering and injects, but the test main channel is by the shutoff of injection allocation core, above-mentioned several dispensing mode all can't adopt routine to test envelope technology and test envelope, therefore, take eccentric multistage water injection technology, the poly-drive injection well off-centre of application is tested the envelope seal section sealing state of injection string is tested, it is the single-skin drum bowl structure that the present off-centre of using is tested the envelope seal section, and sealing effectiveness is poor, the incompatible poly-eccentric injection allocation device that drives.
The utility model content:
Test the deficiency of envelope seal section sealing effectiveness difference in order to overcome existing off-centre, the utility model provides a kind of and poly-ly drives off-centre and test the envelope seal section, and this is poly-to drive off-centre and test the envelope seal section and have the characteristics of good sealing effect, easy accessibility.
The technical solution of the utility model is: this is poly-to drive off-centre and tests the envelope seal section and comprise main body in leather cup base, down cup, adjusting bolt, the leather cup, the adjusting bolt passes the leather cup base and is connected with main body in the leather cup, the upper end of main body connects upper joint sleeve in the leather cup, main body is with the leather cup adapter sleeve outward in the leather cup, the two ends of down cup are all fixing respectively on leather cup base and leather cup adapter sleeve by pressure cap, are fixed with leather cup by pressure cap between the interior main body of leather cup adapter sleeve and leather cup.
The utlity model has following beneficial effect: owing to take such scheme, the twin-stage cup packing of the last down cup by interlock, good sealing effect between the last down cup and the eccentric well borehole wall, can adapt to the poly-eccentric injection allocation device that drives in use, the twin-stage leather cup structure of last down cup has satisfied tests the envelope requirement, guaranteed the accuracy of the position of upper and lower part pressure gauge and last down cup, during operation at the ground easy accessibility.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-leather cup base among the figure, the 2-down cup, 3-regulates bolt, main body in the 4-leather cup, 5-upper joint sleeve, 6-leather cup adapter sleeve, 7-pressure cap, the last leather cup of 8-, 9-rack body, 10-cam, 11-lock dog, 12-back-up block, 13-spring.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, should poly-drive off-centre tests the envelope seal section and comprises leather cup base 1, down cup 2, regulates main body 4 in bolt 3, the leather cup, adjusting bolt 3 passes leather cup base 1 and is connected with main body 4 in the leather cup, the upper end of main body 4 connects upper joint sleeve 5 in the leather cup, the main body 4 outer leather cup adapter sleeves 6 that are with in the leather cup, the two ends of down cup 2 are all fixing respectively on leather cup base 1 and leather cup adapter sleeve 6 by pressure cap 7, are fixed with leather cup 8 by pressure cap 7 between the interior main body 4 of leather cup adapter sleeve 6 and leather cup.
During actual the use, leather cup base 1 is connected on the rack body 9, cam 10, lock dog 11 and 2 back-up blocks 12 are installed on the rack body 9, between 2 back-up blocks 12, be equipped with spring 13, adjust down cup (8 on ground with regulating bolt 3 before going into the well, the size of the magnitude of interference 2), the size of main body 4 stroke in leather cup base 1 in the leather cup just, rotating cam 10 certain angles are by lock dog 11 locking back-up blocks 12, make back-up block 12 be in retracted state, the last termination weighted lever of upper joint sleeve 5 is regulated weighted lever weight according to the hardness of last down cup (8,2).When going into the well, this instrument on behind the eccentric ф φ 46mm passage, carries, the cam 10 that protrudes in the main body external surface rotation that is hampered, lock dog 11 is moved downward break away from back-up block 12, back-up block 12 opens under the elastic force effect of spring 13, transfer instrument this moment, back-up block 12 is sitting on the borehole wall, the interior main body 4 of leather cup this moment moves downward leather cup 8 in the compression under the action of gravity of weighted lever, again by last leather cup 8, leather cup adapter sleeve 6 is given down cup 2 with the weight transfer of weighted lever, make down cup (8,2) and produce the magnitude of interference between the borehole wall, the eccentric φ 46mm of packing passage has adopted the twin-stage cup packing, good sealing effect, can adapt in use to gather and drive eccentric injection allocation device, at the ground easy accessibility.What the pressure gauge that the upper end of this device connects was tested is upper pressure, what the pressure gauge that the lower end of this device connects was tested is the strata pressure of target zone, by changing the injection pressure of well head, observe the variation of bottom pressure, thus the sealing condition of packer in the middle of judging.The twin-stage leather cup structure of last down cup (8,2) has satisfied tests the envelope requirement, has guaranteed the accuracy of the position of upper and lower part pressure gauge and last down cup (8,2).
Claims (1)
1. one kind poly-driven off-centre and tests the envelope seal section, comprise leather cup base (1), down cup (2), regulate bolt (3), main body (4) in the leather cup, adjusting bolt (3) passes leather cup base (1) and is connected with main body (4) in the leather cup, the upper end of main body (4) connects upper joint sleeve (5) in the leather cup, it is characterized in that: the outer leather cup adapter sleeve (6) that is with of main body (4) in the leather cup, the two ends of down cup (2) are all fixing respectively on leather cup base (1) and leather cup adapter sleeve (6) by pressure cap (7), are fixed with leather cup (8) by pressure cap (7) between the interior main body (4) of leather cup adapter sleeve (6) and leather cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201290011U CN201059175Y (en) | 2007-07-28 | 2007-07-28 | Polymer flooding eccentric sealing check sealing section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201290011U CN201059175Y (en) | 2007-07-28 | 2007-07-28 | Polymer flooding eccentric sealing check sealing section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059175Y true CN201059175Y (en) | 2008-05-14 |
Family
ID=39407644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201290011U Expired - Fee Related CN201059175Y (en) | 2007-07-28 | 2007-07-28 | Polymer flooding eccentric sealing check sealing section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059175Y (en) |
-
2007
- 2007-07-28 CN CNU2007201290011U patent/CN201059175Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20100728 |