CN206246088U - It is a kind of can deblocking with pressure inflatable packer - Google Patents
It is a kind of can deblocking with pressure inflatable packer Download PDFInfo
- Publication number
- CN206246088U CN206246088U CN201621312117.4U CN201621312117U CN206246088U CN 206246088 U CN206246088 U CN 206246088U CN 201621312117 U CN201621312117 U CN 201621312117U CN 206246088 U CN206246088 U CN 206246088U
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- pressure
- joint
- hole
- unicom
- packing element
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Abstract
It is a kind of can deblocking with pressure inflatable packer,There is upper pressure transmission hole on pressure-transmitting joint,There is relief hole on UNICOM's joint,The bottom of pressure-transmitting joint is connected with the top of inner tube,UNICOM's fitting sleeve is outside pressure-transmitting joint,There is sealing ring between UNICOM's joint and pressure-transmitting joint,Sealing ring on hole,Hole lower seal,For sealing the gap between UNICOM's joint and pressure-transmitting joint,UNICOM's joint forms cavity with the diameter difference of pressure-transmitting joint,The bottom of top connection is connected with the top of pressure-transmitting joint,There is lower pressure transmission hole in inner tube,The top of packing element assembly is connected with the bottom of UNICOM's joint,The bottom connection lower contact of inner tube,In the bottom of the external wall of upper portion insertion packing element assembly of lower contact,When needing deblocking to change setting position,Upper lifting pipe post,The inner chamber of packing element assembly and external communication pressure release,Realize the deblocking of packer,Relief hole is suppressed again to be returned on hole between sealing ring and hole lower seal,Make inner chamber and the outer closures of packing element assembly,Packing element assembly expands packing sleeve pipe again under pressure.
Description
Technical field
The utility model is the packer of separated-zone water infection oil field, be it is a kind of can deblocking with pressure inflatable packer.
Background technology
The sleeve pipe in current oil field looks for the construction operation such as Lou to need to use the expanding water injecting packer of oil-field flooding.Oil field
The expanding water injecting packer of water filling is that packing element is expanded outwardly when glue cylinder pressure is higher than packing element external pressure, realizes sealing
The purpose of oil casing annular space.When expanding water injecting packer is gone out from well, it is necessary to glue cylinder pressure be equal to or
Less than packing element external pressure, packing element is shunk, complete deblocking.But because ball-and-seat is arranged at water injection string bottom, the pressure in water injection string
Power can not decline, and the pressure in water injection string can be higher than all the time casing pressure, if not to fluid is injected in sleeve pipe, cannot be real
Existing glue cylinder pressure is equal to or less than packing element external pressure.Therefore, existing expanding water injecting packer deblocking is difficult, during operation only
There is pressure above to carry water injection string, this operating method can cause packing element to damage, it is impossible to reuse, and the sleeve pipe in oil field is looked for Lou etc.
Need of work is applied to detect the leakage situation of multistage sleeve pipe, it is necessary to expanding water injecting packer repeatedly sets, unseals,
Because existing expanding water injecting packer has above mentioned problem, sleeve in oil field is set to look for the construction operation such as to be Lou greatly affected.
The content of the invention
The purpose of this utility model is to overcome above-mentioned problem, design it is a kind of can deblocking with pressure expanding packing
Device, and can restting, deblocking after once entering down, meet sleeve in oil field and look for the construction operation needs packer such as Lou to repeat seat
Envelope, the requirement of deblocking.
What the purpose of this utility model was realized in：Including top connection, UNICOM's joint, sealing ring, pressure-transmitting joint, Kong Shang
Sealing ring, hole lower seal, packing element assembly, inner tube, lower contact, there is upper pressure transmission hole on pressure-transmitting joint, have pressure release on UNICOM's joint
Hole, the bottom of pressure-transmitting joint is connected with the top of inner tube, UNICOM's fitting sleeve outside the pressure-transmitting joint, UNICOM's joint and pressure-transmitting joint
Between have sealing ring, sealing ring, hole lower seal on hole, for sealing the gap between UNICOM's joint and pressure-transmitting joint, sealing
On upper pressure transmission hole, sealing ring is under upper pressure transmission hole on relief hole circle on hole, and hole lower seal is in relief hole
Under, UNICOM's joint forms cavity with the diameter difference of pressure-transmitting joint, and described cavity is on hole on sealing ring, described sky
By upper pressure transmission hole and the inside UNICOM of pressure-transmitting joint, the bottom of top connection is connected with the top of pressure-transmitting joint, has in inner tube in chamber
Lower pressure transmission hole, packing element assembly is sleeved on outside inner tube, and the top of packing element assembly is connected with the bottom of UNICOM's joint, and junction keeps close
Envelope, the bottom connection lower contact of inner tube, in the bottom of the external wall of upper portion insertion packing element assembly of lower contact, lower contact and packing element assembly
Between keep sealing, make inner chamber and the outer closures of packing element assembly, the lower pressure transmission hole in inner tube is communicated with the inner chamber of packing element assembly.
The beneficial effects of the utility model are：Under enter in Casing Failure, inner tube pressure raise after, the glue on packing element assembly
Cylinder expansion sets sealing oil casing annular space, and pressure testing can be carried out to the closed section of sleeve pipe, and it is high that pressure testing terminates rear inner tube pressure
In casing pressure, packing element assembly is in the state that sets, and packing element is tightly attached on internal surface of sleeve pipe, it is necessary to unseal replacing setting position
When, upper lifting pipe post, packing element assembly will not be moved, and relief hole is motionless, and top connection, pressure-transmitting joint, inner tube rise, and hole lower seal rises
To on relief hole, inner chamber and the external communication pressure release of packing element assembly make packing element assembly internal and external pressure balance, realize packer
Deblocking.Need during to another well section leakage detection, above to carry or transfer tubing string, the utility model is moved to design attitude, in oil pipe
Suppress, pressure is passed in cavity through upper pressure transmission hole, it is up in action of hydraulic force second line of a couplet pass joint, relief hole is returned to Kong Shangmi
Between seal and hole lower seal, make inner chamber and the outer closures of packing element assembly, packing element assembly expands envelope again under pressure
Spacer pipe, so that again to sleeve pipe leakage detection.Therefore, the utility model can reach goal of the invention, can after once entering down restting,
Deblocking, can meet sleeve in oil field and look for construction operation needs packer restting, the requirement for unsealing such as Lou.
Brief description of the drawings
Accompanying drawing 1 is Standard figure of the present utility model.
Specific embodiment
1 pair of embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, embodiment of the present utility model include top connection 1, UNICOM's joint 2, sealing ring 3, pressure-transmitting joint 4,
Sealing ring 7, hole lower seal 9, packing element assembly 10, inner tube 11, lower contact 13 on hole, there is upper pressure transmission hole 6 on pressure-transmitting joint 4, connection
The bottom for having relief hole 8, pressure-transmitting joint 4 on pass joint 2 is connected with the top of inner tube 11, and UNICOM's joint 2 is sleeved on pressure-transmitting joint 4
Outward, there are sealing ring 7 on sealing ring 3, hole, hole lower seal 9 between UNICOM's joint 2 and pressure-transmitting joint 4, for sealing UNICOM's joint
With the gap between pressure-transmitting joint 4, on upper pressure transmission hole 6, sealing ring 7 is under upper pressure transmission hole 6 and lets out sealing ring 3 on hole
On pressure hole 8, hole lower seal 9 is under relief hole 8, and UNICOM's joint 2 forms cavity 5, institute with the diameter difference of pressure-transmitting joint 4
The cavity 5 stated is on hole on sealing ring 7, described cavity 5 by upper pressure transmission hole 6 and the inside UNICOM of pressure-transmitting joint 4, on
The bottom of joint 1 is connected with the top of pressure-transmitting joint 4, there is lower pressure transmission hole 6 in inner tube 11, and packing element assembly 10 is sleeved on inner tube 11
Outward, the top of packing element assembly 10 is connected with the bottom of UNICOM joint 2, and junction keeps sealing（Sealing ring can be installed, it is also possible to
Using end face seal）, the bottom connection lower contact 13 of inner tube 11, the bottom of the external wall of upper portion insertion packing element assembly 10 of lower contact 13
It is interior, between lower contact 13 and packing element assembly 10 keep sealing, make inner chamber and the outer closures of packing element assembly 10, in inner tube 11 under
Pressure transmission hole 6 is communicated with the inner chamber of packing element assembly 10.
The shoulder that the top of UNICOM's joint 2 is formed in top connection 1 is spacing, makes UNICOM's joint 2 can only be within the specific limits
Walk up and down.Shoulder by the top of lower contact 13 and the interstage sleeve installed in the bottom of packing element assembly 10 limit packing element assembly 10 under
Stroke is moved up and down on joint 13.The stroke that UNICOM's joint 2, packing element assembly 10 are moved up and down meets the inner chamber of packing element assembly 10
With the UNICOM of relief hole 8 and relief hole 8 is returned to the requirement on hole between sealing ring 7, hole lower seal 9.
Enter in Casing Failure under the utility model, after the pressure rise of inner tube 11, the packing element expansion on packing element assembly 10 is sat
Envelope packing oil casing annular space, pressure testing can be carried out to the closed section of sleeve pipe, leak source is looked for, and it is high that pressure testing terminates the pressure of rear inner tube 11
In casing pressure, packing element assembly 10 is in the state that sets, and packing element is tightly attached on internal surface of sleeve pipe, it is necessary to unseal replacing setting position
When, upper lifting pipe post, packing element assembly 10 will not be moved, and relief hole 8 is motionless, and top connection 1, pressure-transmitting joint 2, inner tube 11 rise, Kong Xiami
Seal 9 is risen on relief hole 8, inner chamber and the external communication pressure release of packing element assembly 10, puts down the external and internal pressure of packing element assembly 10
Weighing apparatus, realizes the deblocking of packer.Need during to another well section leakage detection, above to carry or transfer tubing string, move to the utility model and set
Meter position, to being suppressed in oil pipe, pressure is passed in cavity 5 through upper pressure transmission hole 6, up in action of hydraulic force second line of a couplet pass joint 2, is made
Relief hole 8 is returned on hole between sealing ring 7 and hole lower seal 9, makes inner chamber and the outer closures of packing element assembly 10, in pressure
Expansion insulates sleeve pipe to effect lower rubber cylinder assembly 10 again, such that it is able to again to sleeve pipe leakage detection.
Claims (1)
1. it is a kind of can deblocking with pressure inflatable packer, including top connection（1）, UNICOM's joint（2）, sealing ring（3）, pressure transmission connects
Head（4）, sealing ring on hole（7）, hole lower seal（9）, packing element assembly（10）, inner tube（11）, lower contact（13）, it is characterized in that：
Pressure-transmitting joint（4）On have upper pressure transmission hole（6）, UNICOM's joint（2）On have relief hole（8）, pressure-transmitting joint（4）Bottom and inner tube
（11）Top connection, UNICOM's joint（2）It is sleeved on pressure-transmitting joint（4）Outward, UNICOM's joint（2）With pressure-transmitting joint（4）Between have
Sealing ring（3）, sealing ring on hole（7）, hole lower seal（9）, for sealing UNICOM's joint and pressure-transmitting joint（4）Between between
Gap, sealing ring（3）In upper pressure transmission hole（6）On, sealing ring on hole（7）In upper pressure transmission hole（6）Under relief hole（8）It
On, hole lower seal（9）In relief hole（8）Under, UNICOM's joint（2）With pressure-transmitting joint（4）Diameter difference formed cavity
（5）, described cavity（5）The sealing ring on hole（7）On, described cavity（5）By upper pressure transmission hole（6）With pressure-transmitting joint
（4）Inside UNICOM, top connection（1）Bottom and pressure-transmitting joint（4）Top connection, inner tube（11）On have lower pressure transmission hole（6）,
Packing element assembly（10）It is sleeved on inner tube（11）Outward, packing element assembly（10）Top and UNICOM's joint（2）Bottom connection, junction
Keep sealing, inner tube（11）Bottom connection lower contact（13）, lower contact（13）External wall of upper portion insertion packing element assembly（10）'s
In bottom, lower contact（13）With packing element assembly（10）Between keep sealing, make packing element assembly（10）Inner chamber and outer closures, it is interior
Pipe（11）On lower pressure transmission hole（6）With packing element assembly（10）Inner chamber communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312117.4U CN206246088U (en) | 2016-12-02 | 2016-12-02 | It is a kind of can deblocking with pressure inflatable packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312117.4U CN206246088U (en) | 2016-12-02 | 2016-12-02 | It is a kind of can deblocking with pressure inflatable packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246088U true CN206246088U (en) | 2017-06-13 |
Family
ID=59004391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621312117.4U Active CN206246088U (en) | 2016-12-02 | 2016-12-02 | It is a kind of can deblocking with pressure inflatable packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209286A (en) * | 2018-10-20 | 2019-01-15 | 东营百华石油技术开发有限公司 | A kind of packer of oil well filling sand control |
| CN114135247A (en) * | 2021-12-10 | 2022-03-04 | 中国石油化工股份有限公司 | Auxiliary device and method for developing well mouth heightening |
-
2016
- 2016-12-02 CN CN201621312117.4U patent/CN206246088U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209286A (en) * | 2018-10-20 | 2019-01-15 | 东营百华石油技术开发有限公司 | A kind of packer of oil well filling sand control |
| CN114135247A (en) * | 2021-12-10 | 2022-03-04 | 中国石油化工股份有限公司 | Auxiliary device and method for developing well mouth heightening |
| CN114135247B (en) * | 2021-12-10 | 2024-02-02 | 中国石油化工股份有限公司 | Auxiliary device and method for developing well head heightening |
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