CN203584361U - Multifunctional well packer - Google Patents

Multifunctional well packer Download PDF

Info

Publication number
CN203584361U
CN203584361U CN201320317547.5U CN201320317547U CN203584361U CN 203584361 U CN203584361 U CN 203584361U CN 201320317547 U CN201320317547 U CN 201320317547U CN 203584361 U CN203584361 U CN 203584361U
Authority
CN
China
Prior art keywords
well
flushing
packer
piston
cover
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
Application number
CN201320317547.5U
Other languages
Chinese (zh)
Inventor
咸国旗
赵天浩
刘晋伟
马艳洁
崔玉海
丁晓芳
李世文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN201320317547.5U priority Critical patent/CN203584361U/en
Application granted granted Critical
Publication of CN203584361U publication Critical patent/CN203584361U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a multifunctional well packer, comprising an external work cylinder, and a central pipe disposed in an inner cavity of the external work cylinder. The external part of the middle segment of the external work cylinder is provided with a sealing piece in a sleeving manner. The external work cylinder disposed at the upper part of the sealing piece is provided with at least one well cleaning hole which is communicated from the outer side of the external work cylinder to a space between the work cylinder and the central pipe. The space between the external work cylinder and the central pipe is provided with an upper pressing control type well cleaning mechanism. The external work cylinder disposed at the upper part of the upper pressing control type well cleaning mechanism is provided with an inner anchoring mechanism. A setting mechanism is disposed at the lower part of the sealing piece, and a slips anchoring mechanism is disposed at the lower part of the setting mechanism.

Description

Multi-functional well packer
Technical field
The utility model relates to well layering instrument, especially a kind of multi-functional well packer.
Background technology
On put that to put deblocking hydraulic compression formula packer be the conventional packer of current separated-zone water infection oil field tubing string, but the fluctuation due to water injection pressure in the injecting process can make packer produce wriggling up and down, and also can produce a deblocking hydraulic coupling to packer during anti-circulation well cleanup, can affect the sealing effectiveness of packer like this, when serious, cause shear pin to cut off and deblocking, a whole set of separate layer water injection string was lost efficacy.Therefore designed the water injection packer of multi-functionals such as thering is balance and grappling.
Summary of the invention
The purpose of this utility model is to provide a kind of multi-functional well packer, can effectively carry out well seperated layer water injection, and can realize anti-circulation well cleanup, has the multi-functionals such as balance and grappling.
The purpose of this utility model can be achieved by the following technical measures:
This multi-functional well packer comprises the central tube of operate outside cylinder and seating nipple inner chamber mounted externally, described operate outside cylinder stage casing outer cover has packer accessory, on the operate outside cylinder of described packer accessory top position, offer at least one and from operate outside cylinder outside, be communicated to the well washing hole of annular space between seating nipple and central tube, in the central tube at described well washing hole place and the annular space between operate outside cylinder, be provided with pressure controlling well-flushing mechanism, on the operate outside cylinder of described upper pressure controlling well-flushing mechanism top, be provided with interior anchor mechanism; Described packer accessory below is provided with setting mechanism, and setting mechanism below arranges slips anchoring mechanism.
The purpose of this utility model also can be achieved by the following technical measures:
Described operate outside cylinder comprises top connection, well-flushing cover, well-flushing seat, the packing pipe connecting successively from top to bottom, between described central tube and packing pipe, is provided with lock dog, and described packing pipe outside cover has overcoat, and bottom cover has lower baffle ring and lower block cap.
Described upper pressure controlling well-flushing mechanism is arranged in the annular space between well-flushing cover and intervalve, and this mechanism comprises the valve piston on well-flushing piston and well-flushing piston, and well-flushing piston below arranges potted component.
Described interior anchor mechanism is arranged between well-flushing cover and top connection, and this mechanism is mainly anchor fluke, and anchor fluke is fixed by press strip and the screw in outside, and described well-flushing cover is connected by shear pin with top connection.
Described setting mechanism is arranged between overcoat and packing pipe, and this mechanism comprises upper piston, the lower piston connecting up and down.
Described slips anchoring mechanism comprises cone, the slips being connected up and down, cone top connects pressure ring by shear pin, between pressure ring and the overcoat of top, jump ring is set, described slips is arranged in the slips support of below, on the packing pipe of described lower baffle ring inside, is provided with deblocking lock dog.
Described packer accessory is provided with at least 2, and is provided with each other spacer ring.
Compared to prior art, the utlity model has following beneficial effect:
The interior anchor mechanism of invention can prevent that flushing fluid pressure from causing removing seal for packer; Slips anchoring mechanism can prevent that the fluctuation due to water injection pressure from causing the wriggling of packer; Upper pressure controlling well-flushing mechanism can realize anti-circulation well cleanup.Improved and above put forward the layered effect of deblocking fluid power packer under the different well ' s conditions of oil field, the period of validity that has extended separate layer water injection string.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 and Fig. 3 are the part enlarged drawing of Fig. 1.
In figure: 1-top connection; 2-well-flushing cover; 3-shear pin; 4-screw; 5-sealing ring; 6-press strip; 7-anchor fluke; 8-sealing ring; 9-central tube; 10-valve piston; 11-sealing ring; 12-sealing ring; 13-well-flushing piston; 14-potted component; 15-sealing ring; 16-well-flushing seat; 17-packing pipe; 18-packer accessory; 19-spacer ring; 20-upper piston; 21-sealing ring; 22-sealing ring; 23-lock dog; 24-lower piston; 25-overcoat; 26-jump ring; 27-pressure ring; 28-shear pin; 29-cone; 30-slips; 31-sealing ring; 32-slips support; 33-deblocking lock dog; 34-lower baffle ring; 35-lower block cap.
The specific embodiment:
Top connection 1 lower end of this multi-functional well packer is connected with central tube 9, be connected by shear pin 3 with well-flushing cover 2 outward, anchor fluke 7 is arranged in the groove of top connection 1, by press strip 6, be fixed, valve piston 10 and well-flushing piston 13 are arranged in the ring cavity between central tube 9 and well-flushing cover 2, well-flushing seat 16 upper ends are connected with well-flushing cover 2, lower end is connected with packing pipe 17, packing pipe 17 is enclosed within the outside of central tube 9, by lock dog 23, be connected, packer accessory 18 and spacer ring 19 are enclosed within the outside of packing pipe 17, upper piston 20 lower ends are connected with overcoat 25, lower piston 24 is arranged in the ring cavity between packing pipe 17 and overcoat 25, lower end is connected with cone, overcoat 25 lower ends are connected with pressure ring 27, jump ring 26 is arranged between pressure ring 27 and lower piston 24, pressure ring 27 lower ends are connected by shear pin 28 with cone 29, slips 30 is arranged in slips support 32, slips support 32 lower ends are connected with lower baffle ring 34, gear cap 35 is arranged on the lower end of packing pipe 17.
The course of work:
Go into the well: the upper and lower joint of this packer and oil pipe are connected in to safety lock piece mutually and set under the effect of shear pin, packer is gone into the well in process and can not set.
Set: to oil pipe, suppress, well-flushing piston and valve piston move down closes well-flushing passage, tubing pressure acts on two-stage piston simultaneously, when tubing pressure reaches certain value, set shear pin and cut off, on upper piston starts, move compression packing element and be expanded on casing wall, after having set, the sawtooth padlock of jump ring and lower piston is tight, and packing element, all the time in Expansion sealing state, can not regained.
Water filling: oil pipe comes water pressure to promote well-flushing piston and valve piston moves down, and closes well-flushing passage, realizes layering;
Anti-flushing well: water enters oil jacket annular space, pressure-acting is on well-flushing piston and valve piston, and well-flushing passage is opened;
Deblocking: during lift pipe string, above carry oil pipe and drive on central tube and move, when packer compression packing element and sleeve pipe are close to when motionless, upper lifting force is cut off deblocking shear pin, deblocking lock dog moves down in the groove that enters central tube, and slips moves down withdrawal, and upper piston moves down packing element recovery and realizes deblocking.

Claims (7)

1. multi-functional well packer, it is characterized in that comprising the central tube of operate outside cylinder and seating nipple inner chamber mounted externally, described operate outside cylinder stage casing outer cover has packer accessory, on the operate outside cylinder of described packer accessory top position, offer at least one and from operate outside cylinder outside, be communicated to the well washing hole of annular space between seating nipple and central tube, in the central tube at described well washing hole place and the annular space between operate outside cylinder, be provided with pressure controlling well-flushing mechanism, on the operate outside cylinder of described upper pressure controlling well-flushing mechanism top, be provided with interior anchor mechanism; Described packer accessory below is provided with setting mechanism, and setting mechanism below arranges slips anchoring mechanism.
2. multi-functional well packer according to claim 1, it is characterized in that described operate outside cylinder comprises top connection, well-flushing cover, well-flushing seat, the packing pipe connecting successively from top to bottom, between described central tube and packing pipe, be provided with lock dog, described packing pipe outside cover has overcoat, and bottom cover has lower baffle ring and lower block cap.
3. multi-functional well packer according to claim 2, it is characterized in that described upper pressure controlling well-flushing mechanism is arranged in the annular space between well-flushing cover and intervalve, this mechanism comprises the valve piston on well-flushing piston and well-flushing piston, and well-flushing piston below arranges potted component.
4. multi-functional well packer according to claim 2, it is characterized in that described interior anchor mechanism is arranged between well-flushing cover and top connection, this mechanism is mainly anchor fluke, and anchor fluke is fixed by press strip and the screw in outside, and described well-flushing cover is connected by shear pin with top connection.
5. multi-functional well packer according to claim 2, is characterized in that described setting mechanism is arranged between overcoat and packing pipe, and this mechanism comprises upper piston, the lower piston connecting up and down.
6. multi-functional well packer according to claim 6, it is characterized in that described slips anchoring mechanism comprises cone, the slips being connected up and down, cone top connects pressure ring by shear pin, between pressure ring and the overcoat of top, jump ring is set, described slips is arranged in the slips support of below, on the packing pipe of described lower baffle ring inside, is provided with deblocking lock dog.
7. multi-functional well packer according to claim 2, is characterized in that described packer accessory is provided with at least 2, and is provided with each other spacer ring.
CN201320317547.5U 2013-06-04 2013-06-04 Multifunctional well packer Expired - Fee Related CN203584361U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320317547.5U CN203584361U (en) 2013-06-04 2013-06-04 Multifunctional well packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320317547.5U CN203584361U (en) 2013-06-04 2013-06-04 Multifunctional well packer

Publications (1)

Publication Number Publication Date
CN203584361U true CN203584361U (en) 2014-05-07

Family

ID=50582297

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320317547.5U Expired - Fee Related CN203584361U (en) 2013-06-04 2013-06-04 Multifunctional well packer

Country Status (1)

Country Link
CN (1) CN203584361U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213867A (en) * 2013-06-04 2014-12-17 中国石油化工股份有限公司 Multifunctional water well packer
CN105672934A (en) * 2014-11-20 2016-06-15 中国石油化工股份有限公司 Hydraulic-cylinder type enclosed anti-creep packer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213867A (en) * 2013-06-04 2014-12-17 中国石油化工股份有限公司 Multifunctional water well packer
CN104213867B (en) * 2013-06-04 2018-02-27 中国石油化工股份有限公司 A kind of multi-functional Water well packer
CN105672934A (en) * 2014-11-20 2016-06-15 中国石油化工股份有限公司 Hydraulic-cylinder type enclosed anti-creep packer
CN105672934B (en) * 2014-11-20 2018-04-03 中国石油化工股份有限公司 The closed Anticreep packer of hydraulic cylinder-type

Similar Documents

Publication Publication Date Title
CN204457524U (en) A kind of screw drilling tool by-pass valve with interior blowout prevention function
CN101737019A (en) Release packer capable of well-flushing
CN203584361U (en) Multifunctional well packer
CN201439701U (en) Stage cementing distributor
CN104213867A (en) Multifunctional water well packer
CN203285385U (en) Hydraulic control packer
CN102900395A (en) Hydraulic packer
CN204782852U (en) Anti - well washing device is pressed in crowded water injection mud area
CN203188968U (en) Cable-passing well-washable packer
CN201068781Y (en) Down-hole fixed pressure opening valve for injection, extraction and washing
CN201982057U (en) Gradually-deblocking well-flushing type packer
CN203584365U (en) Retrievable integral ash squeezing bridge plug
CN202810773U (en) Balanced stage-by-stage unpacking washable well packer
CN201025006Y (en) Once extrusion and cycling filling tool for high pressure sealing
CN205225172U (en) Water injection packer capable of being used for washing well
CN103388469A (en) Filling tool
CN202850934U (en) Water injection separated layer packer
CN109798085B (en) Normally closed type one-way injection downhole blowout preventer
CN201314218Y (en) Hydraulic-pressure bridge plug
CN2729300Y (en) Integral eccentric water distributor and packer controlled by integral valve
CN202165046U (en) Hydraulic packer
CN205025417U (en) Hydraulic cylinder water injection packer
CN2789406Y (en) High pressure resisting packer
CN203756112U (en) Well washing balance packer
CN201486539U (en) Chemical sand control tool remained and plugged underground

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140507

Termination date: 20150604

EXPY Termination of patent right or utility model