CN106481302A - A kind of method setting oil-separating layer and special from boost controller - Google Patents
A kind of method setting oil-separating layer and special from boost controller Download PDFInfo
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- CN106481302A CN106481302A CN201510554892.4A CN201510554892A CN106481302A CN 106481302 A CN106481302 A CN 106481302A CN 201510554892 A CN201510554892 A CN 201510554892A CN 106481302 A CN106481302 A CN 106481302A
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- pressure
- packer
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- boost controller
- joint
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000001174 ascending effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000012856 packing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of method setting oil-separating layer and special from boost controller, first will set tubing string and be lowered into down-hole precalculated position, and then start and complete packer is set from boost controller；Set tubing string include tubular column main body and be connected in turn from top to bottom in tubular column main body from boost controller and packer, described from boost controller and packer also by controlling pipeline to connect；It is made up of the startup assembly being sequentially connected from top to bottom, supercharging assembly, pressure-transmitting joint from boost controller, wherein between supercharging assembly and pressure-transmitting joint, form higher-pressure region；Wherein supercharging assembly adjusts the ascending, descending of high nip pressures, and pressure-transmitting joint is connected with liquid controling pipe line by snap joint；After startup assembly will be pressurized assembly startup, by the pressure rise in higher-pressure region to required setting pressure, pressure-transmitting joint is connected with liquid controling pipe line supercharging assembly by snap joint, and high pressure is transferred to packer makes generation pressure reduction inside and outside packer realize setting.
Description
Technical field
The present invention relates to oil well packer oil-separating layer technology, specifically a kind of method setting oil-separating layer and specially
With from boost controller.
Background technology
At present using packer oil-separating layer be widely used in straight well, inclined shaft, carry out in horizontal well separate zone stimulation, formation testing,
The techniques such as oil recovery, test, water detection, water blockoff.The mode that sets of packer mainly has 6 kinds, and wherein hydraulic-driven sets envelope
Have that easy to operate, reliability is high every the mode of device, the advantage such as do not limited by well type, its application scale progressively expands.
Can retrieve at present both at home and abroad by the way of hydraulic-driven set packer oil-separating layer, needed for packer setting
The pressure reduction that sets wanted mainly is produced by two kinds of forms, and a kind of undergauge of kit relying in tubing string or throttling make tubing string
The inside and outside mode set packer producing chock pressure difference, another kind of setting ball seat supporting in tubing string or other similar means,
Make to form a closed chamber in tubing string, in tubing string, suppress set packer.The third mode is that packer is connected by capillary tube
Suppress to wellhead equipment and set, tubing string need to carry to enter under capillary tube this mode due to whole time, and long capillary tube even reaches several kms,
High cost, under enter difficulty, risk is big, and is only suitable in straight inclined shaft.
Content of the invention
It is an object of the invention to provide a kind of method setting oil-separating layer and special from boost controller, using supercharging system
The method that system controls packer setting oil-separating layer, the pressure charging system being essentially relying on downhole designs independence improves in packer
The pressure in portion, makes packer inside and outside generation pressure reduction set packer.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of method setting oil-separating layer, first will
Set tubing string and be lowered into down-hole precalculated position, then start and complete packer is set from boost controller；
Set tubing string include tubular column main body and be connected in turn from top to bottom in tubular column main body from boost controller and envelope
Every device, described from boost controller and packer also by controlling pipeline to connect；
It is made up of the startup assembly being sequentially connected from top to bottom, supercharging assembly, pressure-transmitting joint from boost controller, wherein increase
Form higher-pressure region between pressure assembly and pressure-transmitting joint；Wherein supercharging assembly adjusts the ascending, descending of high nip pressures, pressure-transmitting joint
It is connected with liquid controling pipe line by snap joint；Start assembly will be pressurized after assembly starts, be pressurized assembly by the pressure in higher-pressure region
Power is increased to required setting pressure, and pressure-transmitting joint is connected with liquid controling pipe line by snap joint, and high pressure is transferred to seal
Make to produce pressure reduction inside and outside packer every device and realize setting.
Described packer, at least provided with a set of, when carrying out operation to multistage, is sequentially connected many set packers, all of envelope
It is sequentially connected in series also by pressure transmission pipeline every device.
In order to reach above-mentioned another object, present invention employs following technical scheme, one kind sets the special increasing certainly of oil-separating layer
Pressure controller it is characterised in that being made up of the startup assembly being sequentially connected from top to bottom, supercharging assembly, pressure-transmitting joint,
Wherein form higher-pressure region between supercharging assembly and pressure-transmitting joint.
Described startup assembly starts supercharging assembly using hydraulic control or Mechanical course or Electromagnetic Control or electric control mode.
Controller is set using the supercharging of hydraulic control mode and includes central canal, cylinder sleeve, described cylinder sleeve is enclosed within outside central canal
And formed and central canal between in annular space, annular space and piston is installed, the upper end radial symmetric of described central canal is distributed two footpaths
To pressure transmission hole, for connecting center tube cavity and above-mentioned annular space, described cylinder sleeve lower end connects pressure-transmitting joint, on pressure-transmitting joint
Axially offer the axial pressure transmission hole connecting with above-mentioned annular space, pressure transmission hole is connected with pressure transmission pipeline by snap joint, described
Piston is passed through axially equally distributed four startup shear pins and is connected with central canal, and is located at radial direction pressure transmission hole and axial pressure transmission hole
Between passage, described piston axially up and down the surface area of both ends of the surface different, upper surface area is more than lower surface area.
The upper end of described cylinder sleeve connects top connection, and top connection is internal to be sealed by O-ring seal with central canal, and described pressure transmission connects
Head lower end connects lower contact.
Compared to prior art, the invention has the advantages that：
The present invention using pressure charging system control packer setting oil-separating layer method be by down-hole according to design attitude
Require to dispose and realize from pressurization control packer setting tubing string, tubing string is from top to bottom by from boost controller, liquid controling pipe line, envelope
Every device composition, other instruments such as anchor, safety joint can be connected from boost controller top in this tubing string, in tubing string
At least configure a set of packer, when operation is carried out to multistage, many set packers, every two sets of packings need to be configured in tubing string
Other kits can be connected according to technological requirement between device.From between boost controller and packer and packer and envelope
Connected by liquid controling pipe line between device.
The supercharging of packer, liquid drive system are independent, and packer setting is not affected by other kits in tubing string, tubing string
Need not be using the structure producing throttling or form closed chamber, lower end can be taken and be entered under the mode opened wide completely, supercharging packing
Device sets, blood pressure lowering removing seal for packer, makes construction technology simpler, reliable, is conducive to the enforcement of hierarchical process.
Brief description
Fig. 1 is the structural representation from pressurization control packer setting tubing string；
Fig. 2 is the theory structure schematic diagram setting controller from supercharging；
Fig. 3 is that hydraulic control sets the structural representation of controller from supercharging.
In figure：From boost controller 1, liquid controling pipe line 2, packer 3；Start assembly 1-1, supercharging assembly 1-2, height
Nip 1-3, pressure-transmitting joint 1-4；Top connection 1-5, central canal 1-21, startup shear pin 1-22, piston 1-23, cylinder sleeve
1-24, lower contact 1-6.
Specific embodiment
Detailed description for the present invention and technology contents, cooperation brief description is as follows, but accompanying drawing only provides with reference to and says
Bright be used, be not used for the present invention is any limitation as.
According to Fig. 1-3, a kind of method setting oil-separating layer, first will set tubing string and be lowered into down-hole precalculated position, then
Start and complete packer is set from boost controller；Employing pressure charging system of the present invention controls packer setting envelope
The method of oil removal layer is by requiring to dispose from the realization of pressurization control packer setting tubing string, pipe according to design attitude in down-hole
Post is formed by from boost controller 1, liquid controling pipe line 2, packer 3 from top to bottom, from boost controller 1 in this tubing string
Top can connect other instruments such as anchor, safety joint, at least configures a set of packer 3 in tubing string, when carrying out to multistage
During operation, many set packers 3 need to be configured in tubing string, other can be connected according to technological requirement between every two sets of packers 3 and join
Set instrument.Pass through liquid controling pipe line 2 between boost controller 1 and packer 3 and between packer 3 and packer 3
Series connection.
Start assembly 1-1, supercharging assembly 1-2, a few part group such as higher-pressure region 1-3, pressure-transmitting joint 1-4 from boost controller
Become；Wherein supercharging assembly adjusts the ascending, descending of high nip pressures, and pressure-transmitting joint is connected with liquid controling pipe line by snap joint；
After startup assembly will be pressurized assembly startup, the pressure rise in higher-pressure region to required setting pressure, is passed by supercharging assembly
Crimp head is connected with liquid controling pipe line by snap joint, and high pressure is transferred to packer makes to produce pressure reduction and reality inside and outside packer
Now set.
So that hydraulic control is from boost controller as a example.Hydraulic control mainly includes central canal 1-21, cylinder sleeve 1-24 from boost controller,
Described cylinder sleeve is enclosed within central canal outside and forms in annular space, annular space piston 1-23, the described center of installing and central canal between
The upper end radial symmetric of pipe is distributed two radial direction pressure transmission holes, for connecting center tube cavity and above-mentioned annular space, under described cylinder sleeve
End connects pressure-transmitting joint 1-4, pressure-transmitting joint axially offers the axial pressure transmission hole connecting with above-mentioned annular space, pressure transmission hole passes through
Snap joint is connected with pressure transmission pipeline, and described piston passes through axially equally distributed four startup shear pin 1-22 and central canal and connects
Connect, and be located at the passage between radial direction pressure transmission hole and axial pressure transmission hole.The surface area of the axial both ends of the surface up and down of described piston is not
With upper surface area is more than lower surface area.The upper end of described cylinder sleeve connects top connection 1-5, top connection inside and central canal
Sealed by O-ring seal, described pressure-transmitting joint lower end connects lower contact 1-6.
First tubing string is lowered into precalculated position during construction, suppresses and certainly cut off the startup shear pin 1-22 that supercharging sets in controller 1,
Start pressure charging system, now piston 1-23 is descending along central canal 1-21 outer wall in the presence of hydraulic coupling, due to piston
The upper and lower area of 1-23 is different, when piston 1-23 stress reaches balance, the independent higher-pressure region that is connected with liquid controling pipe line 2
Pressure ratio oil overpressure is high, and is reached high pressure inside packer 3 packing element by liquid controling pipe line 2, produces and sets packing element institute
The pressure reduction needing, makes packers 3 at different levels set, carries out corresponding construction operation, after the completion of operation, pressure release, and oil pipe
Interior reduced pressure, then piston 1-23 is up in the presence of hydraulic coupling, in liquid controling pipe line 2 and packer at different levels 3 packing element
Portion's reduced pressure, packing element unseals automatically, above lifts tubing string, completes whole technical process.
The foregoing is only presently preferred embodiments of the present invention, be not used to limit the scope of the claims of the present invention, other use this
The equivalence changes of bright patent spirit, all should all belong to the scope of the claims of the present invention.
Claims (6)
1. a kind of method setting oil-separating layer is lowered into down-hole precalculated position it is characterised in that tubing string first will be set, and then starts and completes packer is set from boost controller；
Set tubing string include tubular column main body and be connected in turn from top to bottom in tubular column main body from boost controller and packer, described from boost controller and packer also by controlling pipeline to connect；
It is made up of the startup assembly being sequentially connected from top to bottom, supercharging assembly, pressure-transmitting joint from boost controller, wherein between supercharging assembly and pressure-transmitting joint, form higher-pressure region；Wherein supercharging assembly adjusts the ascending, descending of high nip pressures, and pressure-transmitting joint is connected with liquid controling pipe line by snap joint；After startup assembly will be pressurized assembly startup, by the pressure rise in higher-pressure region to required setting pressure, pressure-transmitting joint is connected with liquid controling pipe line supercharging assembly by snap joint, and high pressure is transferred to packer makes generation pressure reduction inside and outside packer realize setting.
2. a kind of method setting oil-separating layer according to claim 1, it is characterised in that described packer is at least provided with a set of, when carrying out operation to multistage, is sequentially connected many set packers, all of packer is sequentially connected in series also by pressure transmission pipeline.
3. a kind of set oil-separating layer special from boost controller it is characterised in that being made up of the startup assembly being sequentially connected from top to bottom, supercharging assembly, pressure-transmitting joint, wherein form higher-pressure region between supercharging assembly and pressure-transmitting joint.
4. one kind according to claim 3 set oil-separating layer special from boost controller it is characterised in that described startup assembly starts supercharging assembly using hydraulic control or Mechanical course or Electromagnetic Control or electric control mode.
5. one kind according to claim 4 set oil-separating layer special from boost controller，It is characterized in that，Controller is set using the supercharging of hydraulic control mode and includes central canal、Cylinder sleeve，Described cylinder sleeve is enclosed within central canal outside and forms annular space and central canal between，Piston is installed in annular space，The upper end radial symmetric of described central canal is distributed two radial direction pressure transmission holes，For connecting center tube cavity and above-mentioned annular space，Described cylinder sleeve lower end connects pressure-transmitting joint，Axially the axial pressure transmission hole connecting with above-mentioned annular space is offered on pressure-transmitting joint，Pressure transmission hole is connected with pressure transmission pipeline by snap joint，Described piston is passed through axially equally distributed four startup shear pins and is connected with central canal，And it is located at the passage between radial direction pressure transmission hole and axial pressure transmission hole，The surface area of the axial both ends of the surface up and down of described piston is different，Upper surface area is more than lower surface area.
6. according to claim 5 a kind of set that oil-separating layer is special to be sealed by O-ring seal with central canal inside top connection from boost controller it is characterised in that the upper end of described cylinder sleeve connects top connection, the connection lower contact of described pressure-transmitting joint lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554892.4A CN106481302A (en) | 2015-09-02 | 2015-09-02 | A kind of method setting oil-separating layer and special from boost controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554892.4A CN106481302A (en) | 2015-09-02 | 2015-09-02 | A kind of method setting oil-separating layer and special from boost controller |
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| Publication Number | Publication Date |
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| CN106481302A true CN106481302A (en) | 2017-03-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234503Y (en) * | 1995-06-27 | 1996-09-04 | 宝鸡石油机械厂 | Sliding sleeve balance circular pressure controlled ball test valve |
| US5826652A (en) * | 1997-04-08 | 1998-10-27 | Baker Hughes Incorporated | Hydraulic setting tool |
| CN2563296Y (en) * | 2002-07-18 | 2003-07-30 | 阜新市石油工具厂 | Pressure reducing seat seal packer |
| US20080011471A1 (en) * | 2006-06-02 | 2008-01-17 | Innicor Subsurface Technologies Inc. | Low pressure-set packer |
| CN103732850A (en) * | 2011-08-31 | 2014-04-16 | 韦尔泰克有限公司 | Annular barrier with pressure amplification |
| CN204984339U (en) * | 2015-09-02 | 2016-01-20 | 中国石油化工股份有限公司 | Sit and seal special use of oil removal layer from pressurization control ware |
-
2015
- 2015-09-02 CN CN201510554892.4A patent/CN106481302A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234503Y (en) * | 1995-06-27 | 1996-09-04 | 宝鸡石油机械厂 | Sliding sleeve balance circular pressure controlled ball test valve |
| US5826652A (en) * | 1997-04-08 | 1998-10-27 | Baker Hughes Incorporated | Hydraulic setting tool |
| CN2563296Y (en) * | 2002-07-18 | 2003-07-30 | 阜新市石油工具厂 | Pressure reducing seat seal packer |
| US20080011471A1 (en) * | 2006-06-02 | 2008-01-17 | Innicor Subsurface Technologies Inc. | Low pressure-set packer |
| CN103732850A (en) * | 2011-08-31 | 2014-04-16 | 韦尔泰克有限公司 | Annular barrier with pressure amplification |
| CN204984339U (en) * | 2015-09-02 | 2016-01-20 | 中国石油化工股份有限公司 | Sit and seal special use of oil removal layer from pressurization control ware |
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Application publication date: 20170308 |