CN205638338U - Hourglass packer is looked for to sleeve pipe - Google Patents
Hourglass packer is looked for to sleeve pipe Download PDFInfo
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- CN205638338U CN205638338U CN201620456072.1U CN201620456072U CN205638338U CN 205638338 U CN205638338 U CN 205638338U CN 201620456072 U CN201620456072 U CN 201620456072U CN 205638338 U CN205638338 U CN 205638338U
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- packer
- sleeve pipe
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- packing element
- base
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Abstract
The utility model provides a hourglass packer is looked for to sleeve pipe, includes: top connection (1) presses on, cap (2) on, in. Lower seal circle (3.4.9), middle cover (5), packing element (6), center tube (7), base (8), lower clutch (10). Hourglass packer is looked for to sleeve pipe be the cylinder, lower clutch (10) internal thread and center tube (7) thread connection, base (8) and lower clutch (10) thread connection, establish between center tube (7) and base (8) packing element (6), middle cover (5) is located the upper portion of packing element (6), top connection (1) internal thread and center tube (7) thread connection, on press the upper portion of cap (2) to entangle top connection (1), lower part and middle cover (5) and threaded connection. The utility model is suitable for an oil field oil, water well casing bad break, perforate, break and restore the construction and look for hourglass, sit and seal and deblocking convenient operation, high -pressure expanding packing element increased longevity more than 5 times, the packing element receive and releases easily, avoids a card phenomenon effectively.
Description
Technical field
This utility model relates to oil field oil, well casing repairing down-hole aid, and leakage packer looked for by specifically a kind of sleeve pipe.
Background technology
Along with deepening continuously of oil field development degree, by factors such as external force, chemical attack due to for a long time, there is bad break, bore a hole, the situation such as rupture in oil, well sleeve pipe.Therefore the stable volume increase to oil field causes large effect.The water and the polymer that make injection can not arrive target zone effectively, thus affect whole oil displacement efficiency.This is accomplished by sleeve pipe and looks for Lou construction, finds out the leak position of sleeve pipe, and carrying out closure for next step provides reliable foundation.Look for Lou in technique traditional
K344
There is following defect in packer: one is to be difficult to deblocking, and upper lifting pipe post difficulty, the packing element life-span is short, it is impossible to repeated multiple times suppressing makes its premature failure；Two is that inlet opening easily blocks, packing element folding and unfolding difficulty.
Summary of the invention
The purpose of this utility model is aiming at the drawbacks described above that prior art exists, and leakage packer looked for by a kind of sleeve pipe of design.Solving existing packer and be difficult to deblocking, upper lifting pipe post difficulty, the packing element life-span is short, and inlet opening easily blocks, the problem of packing element folding and unfolding difficulty.
The purpose of this utility model is realized by following technical proposals:
This utility model includes: top connection, upper pressing cap, sealing ring, intermediate sleeve, rubber tube, central canal, base, lower contact.Described sleeve pipe looks for Lou packer to be cylindrical shape, lower contact female thread is connected with central canal external screw thread, base is connected with lower contact external screw thread, rubber tube is located between central canal and base, intermediate sleeve is positioned at the top of rubber tube, top connection female thread is connected with central canal external screw thread, and top connection is entangled on the top of upper pressing cap, bottom and intermediate sleeve with threaded.
Above-mentioned sleeve pipe is looked for and is provided with sealing ring between top connection and the upper pressing cap in Lou packer.
Above-mentioned sleeve pipe is looked for and is provided with middle sealing ring between upper pressing cap and the intermediate sleeve in Lou packer.
Above-mentioned sleeve pipe is looked for and is provided with lower seal between base and the lower contact in Lou packer.
Operation principle: sleeve pipe look for Lou packer go into the well application time with injection well downhole flow regulator (reducer) with the use of, can singly overlap use also can two set with the use of.During water filling, under the effect of injection well downhole flow regulator pressure reduction, tubing pressure enters packing element and central canal inner chamber, makes packing element dilate Seal Oil, set annular space through flowing hole, it is achieved layering, reaches segmentation and look for purpose leakage, and after oil pipe stops watery diarrhea pressure, packing element withdrawal realizes deblocking.
The beneficial effects of the utility model are: be applicable to oil field oil, well casing-broken, bore a hole, rupture repairing construction and look for leakage, other end slip is fixed in fixing for original for the packing element two ends one end that changes into, so that it preferably sets and unseals, packing element is high pressure expanding, and the life-span of packing element improves
5
More than Bei, packer is difficult to be blocked by silt, and packing element folding and unfolding is easy, effectively avoids card envelope phenomenon.
Accompanying drawing explanation
Figure
1-
This utility model master is depending on partly cuing open structural representation.
In figure,
1.
Top connection,
2.
Upper pressing cap,
3.
Upper sealing ring,
4.
Middle sealing ring,
5.
Intermediate sleeve,
6.
Rubber tube,
7.
Central canal,
8.
Base,
9.
Lower seal,
10.
Lower contact；
G.
Flowing hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings enforcement of the present utility model is further elaborated:
Sleeve pipe look for Lou packer by top connection
1
, upper pressing cap
2
, upper sealing ring
3
, middle sealing ring
4
, intermediate sleeve
5
, rubber tube
6
, central canal
7
, base
8
, lower seal
9
, lower contact
10
Composition.Described sleeve pipe looks for Lou packer to be cylindrical shape, lower contact
10
Female thread and central canal
7
External screw thread connects, base
8
With lower contact
10
External screw thread connect, between be provided with lower seal
9
, rubber tube
6
It is located at central canal
7
With base
8
Between, intermediate sleeve
5
It is positioned at rubber tube
6
Top, top connection
1
Female thread and central canal
7
External screw thread connects, upper pressing cap
2
Top entangle top connection
1
, bottom and intermediate sleeve
5
With threaded, upper pressing cap
2
With intermediate sleeve
5
Between be provided with middle sealing ring
4
, top connection
1
With upper pressing cap
2
Between be provided with sealing ring
3
。
Operational approach
1.
Select packer and kit according to design and technological requirement and prepare tubing string on request；
2.
Set: by tubing string down to design attitude, connected pipes water filling, setting of packer can be realized；
3.
Anti-flushing well: well-flushing flow process of turning one's coat, from oil, set annular space feed liquor, can make removing seal for packer, it is achieved anti-flushing well technique；
4.
Deblocking: after oil pipe stops note, packer unseals automatically, can trip out packer and tubing string smoothly.
Points for attention
1.
Instrument should gently be removed when carrying and put down gently, with antisitic defect instrument；
2.
Before instrument enters well, close inspection failure can not apply；
3.
Packer is necessary first drifting, pipe cleaning, well-flushing before going into the well, and confirming that pit shaft situation is intact can go into the well；
4.
During lower tubular column, operation is wanted steadily, to forbid suddenly to carry, suddenly put, in order to avoid damage packer；
5.
Must hang up at afterbody during looking for leakage
1
~
2
Root tail pipe, prevents because tool interior is blocked by sand setting；
6.
Upper lifting pipe is oil jacket pressure balance to be kept when living, so as not to packing element can not efficient recovery and reduce service life.
Claims (4)
1.Leakage packer looked for by a kind of sleeve pipe, including: top connection ( 1 ), upper pressing cap ( 2 ), upper sealing ring ( 3 ), middle sealing ring ( 4 ), intermediate sleeve ( 5 ), rubber tube ( 6 ), central canal ( 7 ), base ( 8 ), lower seal ( 9 ), lower contact ( 10 )；It is characterized in that: described sleeve pipe looks for Lou packer to be cylindrical shape, lower contact ( 10 ) female thread and central canal ( 7 ) external screw thread connection, base ( 8 ) and lower contact ( 10 ) external screw thread connection, rubber tube ( 6 ) be located at central canal ( 7 ) and base ( 8 Between), intermediate sleeve ( 5 ) be positioned at rubber tube ( 6 ) top, top connection ( 1 ) female thread and central canal ( 7 ) external screw thread connection, upper pressing cap ( 2 ) top entangle top connection ( 1 ), bottom and intermediate sleeve ( 5 ) with threaded.
2.According to claim 1 Leakage packer looked for by described sleeve pipe, it is characterized in that: described top connection ( 1 ) and upper pressing cap ( 2 Be provided with between) sealing ring ( 3 ).
3.According to claim 1 Leakage packer looked for by described sleeve pipe, it is characterized in that: described upper pressing cap ( 2 ) and intermediate sleeve ( 5 Be provided with between) middle sealing ring ( 4 ).
4.According to claim 1 Leakage packer looked for by described sleeve pipe, it is characterized in that: described base ( 8 ) and lower contact ( 10 Be provided with between) lower seal ( 9 ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456072.1U CN205638338U (en) | 2016-05-19 | 2016-05-19 | Hourglass packer is looked for to sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456072.1U CN205638338U (en) | 2016-05-19 | 2016-05-19 | Hourglass packer is looked for to sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638338U true CN205638338U (en) | 2016-10-12 |
Family
ID=57057556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620456072.1U Active CN205638338U (en) | 2016-05-19 | 2016-05-19 | Hourglass packer is looked for to sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178363A (en) * | 2017-05-26 | 2017-09-19 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area and its look for leakage technique |
| CN107313767A (en) * | 2017-05-26 | 2017-11-03 | 中国石油天然气股份有限公司 | Tube-colume for seanching leakage area and its look for leakage 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 |
| CN113236172A (en) * | 2021-06-09 | 2021-08-10 | 中国石油大学(华东) | Down-hole screen pipe hydraulic forming patching tool and method |
-
2016
- 2016-05-19 CN CN201620456072.1U patent/CN205638338U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178363A (en) * | 2017-05-26 | 2017-09-19 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area and its look for leakage technique |
| CN107313767A (en) * | 2017-05-26 | 2017-11-03 | 中国石油天然气股份有限公司 | Tube-colume for seanching leakage area and its look for leakage process |
| CN107313767B (en) * | 2017-05-26 | 2021-07-02 | 中国石油天然气股份有限公司 | Leakage finding pipe column and leakage finding process method thereof |
| 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 |
| CN113236172A (en) * | 2021-06-09 | 2021-08-10 | 中国石油大学(华东) | Down-hole screen pipe hydraulic forming patching tool and method |
| CN113236172B (en) * | 2021-06-09 | 2022-05-17 | 中国石油大学(华东) | Down-hole screen pipe hydraulic forming patching tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |