CN106246133A - A kind of double acting compression setting mechanism - Google Patents
A kind of double acting compression setting mechanism Download PDFInfo
- Publication number
- CN106246133A CN106246133A CN201610744592.7A CN201610744592A CN106246133A CN 106246133 A CN106246133 A CN 106246133A CN 201610744592 A CN201610744592 A CN 201610744592A CN 106246133 A CN106246133 A CN 106246133A
- Authority
- CN
- China
- Prior art keywords
- packer
- setting mechanism
- setting
- double acting
- fluid cylinder
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
- E21B33/1265—Packers; Plugs with fluid-pressure-operated elastic cup or skirt with mechanical slips
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
Abstract
The invention provides a kind of double acting compression setting mechanism, including packer, packer tail end is provided with anchor mechanism, described packer top is additionally provided with packing element, packing element upper end is provided with hydraulic pressure auxiliary setting mechanism, first this invention is provided packer setting power by one-way slip, if the situations such as tubing string generation play cause packer setting power deficiency, at this moment setting mechanism is assisted to provide setting force by the hydraulic pressure of packing element one end, packer is made to remain the state of setting, the present invention can not only meet the needs of reservoir reconstruction, and can packer the most setting in dual guarantee multi-section multi-layer work progress.
Description
Technical field
The present invention relates to oil gas field formation testing gas testing technical field of tools, be specifically related to a kind of double acting compression and set machine
Structure.
Background technology
Packer be low-permeability oil deposit reservoir reconstruction than indispensable downhole tool, be to improve further individual well to produce in recent years
Measure and shorten duty cycle, reservoir is carried out significantly more efficient transformation, having carried out straight well, horizontal well multilevel hierarchy fracturing tool
Research.Along with the complexity of construction layer hop count and old well construction operating mode is continuously increased, the stability of packer setting is had very
High requirement.Currently used compression packer includes machinery and sets and hydraulic setting, for mechanical-set compression
For formula packer, general employing one-way slip supports realization and sets, and when the downward sliding of one-way slip, packer sealing is imitated
Fruit then can decline even lost efficacy.
Horizontal well routine oil pipe drags double envelope single deck tape-recorder staged fracturing technique, and to be that hyposmosis oil well repeats to transform operation the most frequently used
Process means.Many employing K344 type isolating tools in modal double envelope single deck tape-recorder process pipe string.But, the double envelope of this K344 type
Single deck tape-recorder instrument the most often face and cannot solve such as to set discharge capacity high, " negative pressure bit freezing ", reliably test envelope etc.
Construction difficult problem.And apply double-Y shaped packer can solve above construction difficult problem, but when carrying out staged fracturing, needed for upper packer
Setting force cannot be effectively ensured.
Meanwhile, current water detection, look for Lou that technique is frequently with Y211 packer, owing to during pressure testing, the upper top power of tubing string is excessive,
Reliably setting of packer is often difficult to.
Summary of the invention
In order to overcome, the dependence of existing compression packer is single sets mode, it is impossible to reliably the setting of packer is effectively ensured
Problem, the present invention proposes a kind of double acting compression setting mechanism, and including packer, packer tail end is provided with grappling machine
Structure, it is characterised in that: described packer top is additionally provided with packing element, and packing element upper end is provided with hydraulic pressure auxiliary setting mechanism.
Described hydraulic pressure auxiliary setting mechanism includes that top connection, fluid cylinder and central canal, described fluid cylinder epimere are placed under top connection
Outside portion, described central canal top is connected to inside top connection and fluid cylinder hypomere, and central canal, lower outside are also cased with packing element.
It is provided with feed pathway on the sidewall on described central canal top.
Described top connection lower outside is provided with outer, and described fluid cylinder upper end withstands on this outer.
Described top connection lower end is placed in the interior edge of fluid cylinder epimere and hypomere sidewall.
It is provided with sealing ring between described top connection and fluid cylinder.
It is provided with sealing ring between described fluid cylinder and central canal.
Beneficial effects of the present invention:
(1) this double acting compression setting mechanism of the present invention, is first provided packer setting power by one-way slip, if tubing string
When occurring the situations such as play to cause packer setting power deficiency, at this moment assisted setting mechanism to provide by the hydraulic pressure of packing element one end and set
Power, makes packer remain the state of setting, and the present invention can not only meet the needs of reservoir reconstruction, and can dual ensure
In multi-section multi-layer work progress, packer is the most setting.
(2) this double acting compression setting mechanism of the present invention is by being provided with feed liquor on the sidewall on central canal top
Passage, and fluid cylinder coordinates with top connection, central canal and formed closed chamber, liquid is entered in described closed chamber by feed pathway, pushes away
Hydrodynamic cylinder is descending, compresses packing element, makes packer remain the state of setting.
(3) this double acting compression setting mechanism of the present invention is big by arranging fluid cylinder epimere internal diameter, and hypomere internal diameter is little,
Fluid cylinder forms closed chamber with top connection and central canal, when liquid enters the closed chamber outside central canal, and fluid pressure promotes fluid cylinder
Move down, it is achieved set.
(4) this double acting compression setting mechanism of the present invention is little by arranging top connection lower outside diameter, is formed
One outer, described fluid cylinder upper end withstands on this outer, and described top connection lower end is placed in the interior edge of fluid cylinder hypomere top, when need not
When setting, fluid cylinder is stuck between top connection and packing element, is not fall off.
(5) this double acting compression setting mechanism of the present invention is by close by being provided with between top connection and fluid cylinder
Seal, is provided with sealing ring between fluid cylinder and central canal, when liquid is entered in described closed chamber by feed pathway, and sealing ring energy
Enough avoid fluid loss, it is ensured that hydraulic pressure, promote fluid cylinder descending, compress packing element, make packer remain the state of setting.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of double acting compression setting mechanism of the present invention.
Accompanying drawing illustrates: 1, top connection；2, fluid cylinder；3, feed pathway；4, central canal；5, packing element.
Detailed description of the invention
Embodiment 1:
Single set mode to overcome existing compression packer to rely on, it is impossible to be effectively ensured packer reliably set ask
Topic, present embodiments provides a kind of double acting compression setting mechanism as shown in Figure 1, and including packer, packer tail end sets
It is equipped with anchor mechanism, it is characterised in that: described packer top is additionally provided with packing element 5, and packing element 5 upper end is provided with hydraulic pressure auxiliary and sits
Sealing mechanism.
Anchor mechanism is positioned at packer tail end, supports for one-way slip, by put put, the mode such as rotation realizes sitting
Card, hydraulic pressure auxiliary setting mechanism is positioned at packing element upper end, and first passing through anchor mechanism provides one-way slip to support and apply certain brill
Pressure, it is achieved packing element compression i.e. packer setting, infusion in oil pipe, hydraulic pressure auxiliary setting mechanism starts, it is provided that to packing element one level pressure
Contracting power, when anchor mechanism provided the pressure of the drill deficiency, still ensures that packer has enough setting forces.
This double acting compression setting mechanism of the present invention, is first provided packer setting power by one-way slip, if pipe
When the situations such as post generation play cause packer setting power deficiency, at this moment assisted setting mechanism to provide by the hydraulic pressure of packing element one end and sit
Feng Li, makes packer remain the state of setting, and the present invention can not only meet the needs of reservoir reconstruction, and can dual protect
In card multi-section multi-layer work progress, packer is the most setting.
Embodiment 2:
Described hydraulic pressure auxiliary setting mechanism includes that top connection 1, fluid cylinder 2 and central canal 4, described fluid cylinder 2 epimere are placed on top connection 1 time
Outside portion, described central canal 4 top is connected to inside top connection 1 and fluid cylinder 2 hypomere, and central canal 4 lower outside is also cased with packing element 5.
Owing to fluid cylinder 2 hypomere internal diameter enters the closed chamber outside central canal, liquid pressure less than fluid cylinder 2 epimere internal diameter, liquid
Try hard to recommend hydrodynamic cylinder 2 to move down, it is achieved set.
Described top connection 1 is threaded connection with central canal 4, and fluid cylinder 2 coordinates with top connection 1, central canal 4 and formed close
Closing chamber, the sidewall on described central canal 4 top is provided with feed pathway 3, in oil pipe during infusion, liquid is entered by feed pathway 3
In described closed chamber, promote fluid cylinder 2 descending, compress packing element 5, make packer remain the state of setting.
Embodiment 3:
Further, when need not set, described top connection 1 lower outside is provided with outer, and it is outer that described fluid cylinder 2 upper end withstands on this
Edge, described top connection 1 lower end is placed in the interior edge of fluid cylinder 2 epimere and hypomere sidewall, and fluid cylinder 2 is stuck between top connection 1 and packing element 5,
It is not fall off.
Further, it is provided with sealing ring between described top connection 1 and fluid cylinder 2, sets between described fluid cylinder 2 and central canal 4
It is equipped with sealing ring.When liquid is entered in described closed chamber by feed pathway 3, sealing ring is it can be avoided that fluid loss, it is ensured that hydraulic pressure,
Promote fluid cylinder 2 descending, compress packing element 5, make packer remain the state of setting.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, all
It is within design same or analogous with the present invention belongs to protection scope of the present invention.
Claims (7)
1. a double acting compression setting mechanism, including packer, packer tail end is provided with anchor mechanism, and its feature exists
In: described packer top is additionally provided with packing element (5), and packing element (5) upper end is provided with hydraulic pressure auxiliary setting mechanism.
2. a kind of double acting compression setting mechanism as claimed in claim 1, it is characterised in that: described hydraulic pressure auxiliary sets machine
Structure includes top connection (1), fluid cylinder (2) and central canal (4), and described fluid cylinder (2) epimere is placed on top connection (1) lower outside, described
Central canal (4) top is connected to inside top connection (1) and fluid cylinder (2) hypomere, and central canal (4) lower outside is also cased with packing element (5).
3. a kind of double acting compression setting mechanism as claimed in claim 2, it is characterised in that: described central canal (4) top
Sidewall on be provided with feed pathway (3).
4. a kind of double acting compression setting mechanism as claimed in claim 2, it is characterised in that: described top connection (1) bottom
Outside is provided with outer, and described fluid cylinder (2) upper end withstands on this outer.
5. a kind of double acting compression setting mechanism as claimed in claim 2, it is characterised in that: described top connection (1) lower end
It is placed in the interior edge of fluid cylinder (2) epimere and hypomere sidewall.
6. a kind of double acting compression setting mechanism as claimed in claim 2, it is characterised in that: described top connection (1) and liquid
Cylinder is provided with sealing ring between (2).
7. a kind of double acting compression setting mechanism as claimed in claim 2, it is characterised in that: described fluid cylinder (2) and center
It is provided with sealing ring between pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744592.7A CN106246133A (en) | 2016-08-29 | 2016-08-29 | A kind of double acting compression setting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744592.7A CN106246133A (en) | 2016-08-29 | 2016-08-29 | A kind of double acting compression setting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106246133A true CN106246133A (en) | 2016-12-21 |
Family
ID=57598417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744592.7A Pending CN106246133A (en) | 2016-08-29 | 2016-08-29 | A kind of double acting compression setting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246133A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016550A1 (en) * | 2002-07-25 | 2004-01-29 | Dearing David G. | Retrievable packer having a positively operated support ring |
| CN201851069U (en) * | 2010-09-13 | 2011-06-01 | 禹栽星 | Multi-purpose anchor packer |
| US20120160523A1 (en) * | 2010-12-28 | 2012-06-28 | Texproil S.R.L. | Downhole packer tool with safety systems for preventing undue set and release operations |
| CN103397863A (en) * | 2013-08-02 | 2013-11-20 | 中国石油化工股份有限公司 | Double-acting compression type packer and use method thereof |
| CN204186346U (en) * | 2014-10-10 | 2015-03-04 | 中国石油天然气集团公司 | Slips anchoring formula high-temperature packer |
| CN204436320U (en) * | 2014-12-23 | 2015-07-01 | 中国石油化工股份有限公司 | A kind of hydraulic releasing big orifice packer |
| CN104863540A (en) * | 2015-05-28 | 2015-08-26 | 荆州市赛瑞能源技术有限公司 | Anchor packer with hydraulic setting function and rotation unsetting function |
| CN204754864U (en) * | 2015-05-13 | 2015-11-11 | 胜利油田康贝石油工程装备有限公司 | Releasing packer is hung to intraductal filling of horizontal well |
| CN206111128U (en) * | 2016-08-29 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Structure is sealed to two seat of compression |
-
2016
- 2016-08-29 CN CN201610744592.7A patent/CN106246133A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016550A1 (en) * | 2002-07-25 | 2004-01-29 | Dearing David G. | Retrievable packer having a positively operated support ring |
| CN201851069U (en) * | 2010-09-13 | 2011-06-01 | 禹栽星 | Multi-purpose anchor packer |
| US20120160523A1 (en) * | 2010-12-28 | 2012-06-28 | Texproil S.R.L. | Downhole packer tool with safety systems for preventing undue set and release operations |
| CN103397863A (en) * | 2013-08-02 | 2013-11-20 | 中国石油化工股份有限公司 | Double-acting compression type packer and use method thereof |
| CN204186346U (en) * | 2014-10-10 | 2015-03-04 | 中国石油天然气集团公司 | Slips anchoring formula high-temperature packer |
| CN204436320U (en) * | 2014-12-23 | 2015-07-01 | 中国石油化工股份有限公司 | A kind of hydraulic releasing big orifice packer |
| CN204754864U (en) * | 2015-05-13 | 2015-11-11 | 胜利油田康贝石油工程装备有限公司 | Releasing packer is hung to intraductal filling of horizontal well |
| CN104863540A (en) * | 2015-05-28 | 2015-08-26 | 荆州市赛瑞能源技术有限公司 | Anchor packer with hydraulic setting function and rotation unsetting function |
| CN206111128U (en) * | 2016-08-29 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Structure is sealed to two seat of compression |
Non-Patent Citations (1)
| Title |
|---|
| 江汉石油管理局采油工艺研究所和江汉石油学院采油教研室 编: "《封隔器理论基础与应用》", 30 November 1983 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |