CN105927182A - Novel packer based on ambient pressure - Google Patents
Novel packer based on ambient pressure Download PDFInfo
- Publication number
- CN105927182A CN105927182A CN201610495529.4A CN201610495529A CN105927182A CN 105927182 A CN105927182 A CN 105927182A CN 201610495529 A CN201610495529 A CN 201610495529A CN 105927182 A CN105927182 A CN 105927182A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- oil
- mandrel
- oil circuit
- rear hydraulic
- 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.)
- Granted
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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
-
- 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
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The invention discloses a novel packer based on the ambient pressure. A rear hydraulic cylinder, a front hydraulic cylinder and a vacuum oil tank are arranged on a spindle; a vacuum cavity is arranged in the vacuum oil tank; four oil circuits are arranged on the spindle; an oil return cavity of the front hydraulic cylinder is communicated with rodless cavities of the rear hydraulic cylinder through the oil circuits respectively; a rod cavity of the rear hydraulic cylinder is communicated with the vacuum oil tank; the oil return cavity of the front hydraulic cylinder is communicated with the rod cavity of the rear hydraulic cylinder; the rodless cavity of the rear hydraulic cylinder is communicated with the vacuum oil tank; solenoid valves are respectively arranged on the oil circuits; under the condition of starting setting, ambient pressure oil enters an oil inlet cavity of the front hydraulilc cylinder, pressure oil in the oil return cavity of the front hydraulic cylinder enters the rodless cavity of the rear hydraulic cylinder, oil liquid in the rod cavity of the rear hydraulic cylinder returns to the vacuum oil tank, a push rod compresses a rubber sleeve seat under the action of pressure so as to force a rubber sleeve to be stressed to deform, expand and compress a sleeve pipe, and the setting action is finished. The novel packer based on the ambient pressure provided by the invention adopts the ambient pressure under a petroleum well as a drive source, and no extra drive equipment is required, so that the cost is reduced, and the usage is more energy-saving.
Description
Technical field
The present invention relates to a kind of down-hole oil layer protection packer, concretely relate to ambient pressure under a kind of employing oil well and, as driving source, ambient pressure and hydraulic drive are combined the Novel packer realizing packing layering.
Background technology
Packer is by isolation payzone in petroleum production engineering, to control the downhole tool of production fluid protection sleeve pipe.Utilize the annular space between stress deformation packing central canal and the sleeve pipe of packing element, reach the purpose that laminated distributor under well seals.Shortage due to Current resource, oil exploitation starts to be turned to deep layer by shallow-layer, the bad environments of deep-well, and exploitation difficulty is the biggest, packer setting and unseals requirement very strict in oil recovery process, this just proposes the highest requirement to the structure design and performance of packer.And existing packer there is problems in that the attached tape drive of packer job demand mostly, set and unseal the power needed for action to provide it to complete so that cost uprises relatively.Packer has been only capable of in down-hole once setting and unsealing, it is impossible to reuse.Complicated in mechanical structure, and control inconvenient operation, if misoperation results in packer and lost efficacy or scrapped, cause huge economic loss and waste of time.
Summary of the invention
It is an object of the invention to, for solving the cost height that existing machinery formula packer exists when setting and unseal, need extra driving equipment and the problem can not being recycled for multiple times in down-hole, propose a kind of to use ambient pressure under oil well as the packer in the source of driving, ambient pressure and hydraulic drive are combined by this packer, its body uses double hydraulic cylinder to drive and the form of vacuum chamber oil return, control electromagnetic valve is only needed to set with regard to changeable and unseal action aboveground, and then control the direction of motion of hydraulic cylinder to complete setting and unsealing of packer, simplify the frame for movement of packer, achieve aboveground can be with less power drive heavy load and can reuse, make equipment the most energy-conservation, maintenance cost is lower.
nullFor achieving the above object，The technical solution adopted in the present invention is: a kind of Novel packer based on ambient pressure,Including: the mandrel being fixedly installed，Top connection and lower contact it is arranged with on mandrel，One end of top connection and one end of lower contact are in close contact and its outside screw is socketed with adapter sleeve，The inner side of top connection and lower contact is connected with mandrel thread by neck bush，Glue tube base it is additionally provided with on mandrel，Packing element it is provided with between lower contact and glue tube base，Rear hydraulic cylinder and front hydraulic cylinder it is additionally provided with on described mandrel，It is matched in clearance between mandrel and rear hydraulic cylinder and front hydraulic cylinder，One end of rear hydraulic cylinder is connected with one end of front hydraulic cylinder，The push rod being provided with in the cylinder barrel of rear hydraulic cylinder is connected through fixing with glue tube base after the rear hydraulic cylinder end cover of rear hydraulic cylinder，It is provided with floating piston in front hydraulic cylinder，Oil-in is offered on the casing wall of front hydraulic cylinder；
Being additionally provided with vaccum fuel tank, vaccum fuel tank and mandrel matched in clearance on described mandrel, one end of vaccum fuel tank is connected with the other end of front hydraulic cylinder by the contiguous block being set on mandrel, is provided with vacuum chamber in vaccum fuel tank；Being additionally provided with integrated valve block, mandrel and integrated valve block matched in clearance on mandrel, one end of integrated valve block is connected with the other end of vaccum fuel tank；
Oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4 is offered respectively on described mandrel, front hydraulic cylinder oil back chamber is connected with rear hydraulic cylinder rodless cavity by oil circuit 1-1, rear hydraulic cylinder rod chamber is connected with vaccum fuel tank by oil circuit 1-4, front hydraulic cylinder oil back chamber is communicated with rear hydraulic cylinder rod chamber by oil circuit 1-3, and described rear hydraulic cylinder rodless cavity is connected with vaccum fuel tank by oil circuit 1-2；The electromagnetic valve of oil circuit control break-make it is respectively provided with on oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4；It is provided with four electromagnetic valves in integrated valve block, is provided with between neck bush and mandrel for the electromagnetic valve plug of above-mentioned solenoid valve and power interface；
When the electromagnetic valve on unlatching oil circuit 1-1 and 1-3 and the electromagnetic valve on closedown oil circuit 1-2 and 1-4, ambient pressure oil enters front hydraulic cylinder oil suction chamber by oil-in, floating descent of piston under pressure oil effect, hydraulic cylinder rodless cavity after pressure oil entrance in front hydraulic cylinder oil back chamber, in rear hydraulic cylinder rod chamber, fluid is back to vaccum fuel tank, push rod compresses glue tube base under pressure, forces packing element stress deformation to expand clamp sleeve, and packer setting action completes.
As improving further, described oil-in is provided with filter.
As improving further, one end of described rear hydraulic cylinder is connected by double thread with one end of front hydraulic cylinder.
As improving further, described contiguous block is connected by the way of welding with vaccum fuel tank.
As improving further, described contiguous block is connected by double thread with the other end of front hydraulic cylinder.
As improving further, one end of described integrated valve block is connected by double thread with the other end of vaccum fuel tank.
Compared with prior art, the invention have the benefit that
1, under the present invention uses oil well, ambient pressure is as driving source, it is not necessary to subsidiary extra driving equipment, and cost reduces, uses the most energy-conservation.
2, the present invention sets and unseals action by what aboveground control electromagnetic valve can complete packer, and frame for movement is simple, easy to operate.
3, the present invention can reuse in down-hole, hydraulic cylinder oil back chamber volume before changing, and can change access times.
4, the present invention devises vaccum fuel tank, the oil return of hydraulic cylinder fluid after being conducive to.Forward and backward hydraulic cylinder uses double thread to couple with the connected mode of vaccum fuel tank and O seals, and improves the sealing property between oil cylinder.
5, the present invention is designed by above Design of Mechanical Structure and electrichydraulic control, it is possible to meet energy saving and accuracy that packer uses in down-hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the operation principle schematic diagram of the present invention.
Labelling in figure: 1, neck bush, 2, adapter sleeve, 3, lower contact, 4, glue tube base, 5, rear hydraulic cylinder end cover, 6, push rod, 7, rear hydraulic cylinder, 701, rear hydraulic cylinder rodless cavity, 702, rear hydraulic cylinder rod chamber, 8, front hydraulic cylinder, 9, floating piston, 10, vaccum fuel tank, 11, integrated valve block, 12, electromagnetic valve, 13, valve block joint, 14, top connection, 15, electromagnetism plug, 16, power interface, 17, vaccum fuel tank, 1701, vacuum chamber, 18, front hydraulic cylinder oil suction chamber, 19, front hydraulic cylinder oil back chamber, 20, packing element, 21, mandrel, 22, oil-in.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
As shown in the figure, a kind of Novel packer based on ambient pressure, including: the mandrel 21 being fixedly installed, top connection 14 and lower contact 3 it is arranged with on mandrel 21, one end of top connection 14 and one end of lower contact 3 are in close contact and its outside screw is socketed with adapter sleeve 2, being threadeded with mandrel 21 by neck bush 2 in the inner side of top connection 14 and lower contact 3, neck bush plays fastening effect, makes cylinder barrel keep axiality.Being additionally provided with glue tube base 4 on mandrel 21, be provided with packing element 20 between lower contact 3 and glue tube base 4, packing element 20 uses elastomeric material to make, and pressurized is easily deformed.
Rear hydraulic cylinder 7 and front hydraulic cylinder 8 it is additionally provided with on mandrel 21, it is matched in clearance between mandrel 21 and rear hydraulic cylinder 7 and front hydraulic cylinder 8, one end of rear hydraulic cylinder 7 is connected by double thread with one end of front hydraulic cylinder 8, the push rod 6 being provided with in the cylinder barrel of rear hydraulic cylinder 7 is connected through fixing with glue tube base 4 after the rear hydraulic cylinder end cover 5 of rear hydraulic cylinder 7, it is provided with floating piston 9 in front hydraulic cylinder 8, offering oil-in 22 on the casing wall of front hydraulic cylinder 8, oil-in 22 is provided with filter.
Vaccum fuel tank 17 it is additionally provided with on mandrel 21, vaccum fuel tank 17 and mandrel 21 matched in clearance, one end of vaccum fuel tank 17 is connected with the other end of front hydraulic cylinder 8 by the contiguous block 10 being set on mandrel 21, wherein, contiguous block 10 is connected by the way of welding with vaccum fuel tank 17, it is possible to be set to be connected by double thread by the other end of contiguous block 10 with front hydraulic cylinder 8.Vacuum chamber 1701 it is provided with in vaccum fuel tank 17；Being additionally provided with integrated valve block 11, mandrel 21 and integrated valve block 11 matched in clearance on mandrel 21, one end of integrated valve block 11 is connected by double thread with the other end of vaccum fuel tank 17.The valve block joint 13 of integrated valve block 11 is threaded connection with top connection 14 one end of other packers, and the other end of top connection 14 and lower contact 3 are to top contact.
Oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4 is offered respectively on mandrel 21, front hydraulic cylinder oil back chamber 19 is connected with rear hydraulic cylinder rodless cavity 701 by oil circuit 1-1, rear hydraulic cylinder rod chamber 702 is connected with vaccum fuel tank 17 by oil circuit 1-2, front hydraulic cylinder oil back chamber 19 is communicated with rear hydraulic cylinder rod chamber 702 by oil circuit 1-3, and described rear hydraulic cylinder rodless cavity 701 is connected with vaccum fuel tank 17 by oil circuit 1-4；Being respectively equipped with electromagnetic valve 12 on oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4, four electromagnetic valves 12 control the break-make of four oil circuits respectively；Being provided with four electromagnetic valves 12 in integrated valve block 11, the model of four electromagnetic valves is identical.Between neck bush 1 and mandrel 21, electromagnetic valve plug 15 and power interface 16 are placed in side, it is provided that electric current needed for above-mentioned electromagnetic valve.The power line of electromagnetic valve is by the pipe passage being opened on mandrel and power on.
Offer eight pipe passages in mandrel 21 vertically as in figure 2 it is shown, wherein four for oil circuit and four for circuit.Offering oil-in outside front hydraulic cylinder 8, subsurface environment pressure oil enters hydraulic cylinder epicoele by oil-in.Front hydraulic cylinder oil back chamber is connected with rear hydraulic cylinder rodless cavity by pipe passage, and described rear hydraulic cylinder rod chamber is connected with vaccum fuel tank 17 by pipe passage, completes a performance loop.Front hydraulic cylinder oil back chamber is communicated with rear hydraulic cylinder rod chamber by pipe passage simultaneously, and rear hydraulic cylinder rodless cavity is connected with vaccum fuel tank 17 by pipe passage, completes another performance loop.The model of four electromagnetic valves is identical.Four electromagnetic valves 12 control the break-make of above-mentioned four oil circuits respectively.Meanwhile, the power line of electromagnetic valve passes through passage and power on.
Whole hydraulic system is using the ambient pressure of residing oil reservoir as pressure source, and become the unlatching of valve block 11 internal solenoid valve 12, and then control by electric-control system domination set on ground after, hydraulic cylinder 7 moves forward and backward.After when, hydraulic cylinder piston rod 6 acts on glue tube base 4, forces packing element 20 to deform, and reaches the effect that sets of oil reservoir, and rear hydraulic cylinder piston rod 6 retreats, and packing element 20 replys original shape, reaches the purpose of deblocking.
In the work process of this packer, when the electromagnetic valve on oil circuit 1-1 and 1-3 is opened, closed electromagnetic valve on oil circuit 1-2 and 1-4, ambient pressure oil enters front hydraulic cylinder oil suction chamber 18 by oil-in 22, under pressure oil effect, floating piston 9 is descending, hydraulic cylinder rodless cavity 701 after pressure oil entrance in front hydraulic cylinder oil back chamber 19, in rear hydraulic cylinder rod chamber 702, fluid is back to vaccum fuel tank 17, push rod 6 compresses glue tube base 4 under pressure, forcing packing element 20 stress deformation to expand clamp sleeve, packer setting action completes.
In packer is in bore oil-reservior, ambient pressure acts on floating piston 9 always, so now packing element 20 is constantly in expansion and sets state.
When electromagnetic valve 1-2 and 1-4 opens, electromagnetic valve 1-3 and 1-1 closes, ambient pressure oil passes through the oil-in C of front hydraulic cylinder 8 through filter 22, enters hydraulic cylinder epicoele 18, and under pressure oil effect, floating piston 9 is descending, front hydraulic cylinder back oil cavity pressure oil connects hydraulic fluid port E through hydraulic fluid port B, hydraulic cylinder cavity of resorption after entrance, push rod 6 is rollback under cavity of resorption oil liquid pressure effect, and rear hydraulic cylinder epicoele fluid returns to vaccum fuel tank through hydraulic fluid port D, packing element 20 reinstatement, removing seal for packer action completes.
Claims (6)
1. a Novel packer based on ambient pressure, including: the mandrel (21) being fixedly installed, top connection (14) and lower contact (3) it is arranged with on mandrel (21), one end of top connection (14) and one end of lower contact (3) are in close contact and its outside screw is socketed with adapter sleeve (2), threadeded with mandrel (21) by neck bush (2) in the inner side of top connection (14) and lower contact (3), glue tube base (4) it is additionally provided with on mandrel (21), packing element (20) it is provided with between lower contact (3) and glue tube base (4), it is characterised in that:
Rear hydraulic cylinder (7) and front hydraulic cylinder (8) it is additionally provided with on described mandrel (21), it is matched in clearance between mandrel (21) and rear hydraulic cylinder (7) and front hydraulic cylinder (8), one end of rear hydraulic cylinder (7) is connected with one end of front hydraulic cylinder (8), the push rod (6) being provided with in the cylinder barrel of rear hydraulic cylinder (7) is connected through the rear hydraulic cylinder end cover (5) of rear hydraulic cylinder (7) is fixing with glue tube base (4) afterwards, it is provided with floating piston (9) in front hydraulic cylinder (8), the casing wall of front hydraulic cylinder (8) offers oil-in (22)；
Vaccum fuel tank (17) it is additionally provided with on described mandrel (21), vaccum fuel tank (17) and mandrel (21) matched in clearance, one end of vaccum fuel tank (17) is connected with the other end of front hydraulic cylinder (8) by the contiguous block (10) being set on mandrel (21), is provided with vacuum chamber (1701) in vaccum fuel tank (17)；Being additionally provided with integrated valve block (11), mandrel (21) and integrated valve block (11) matched in clearance on mandrel (21), one end of integrated valve block (11) is connected with the other end of vaccum fuel tank (17)；
Oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4 is offered respectively on described mandrel (21), front hydraulic cylinder oil back chamber (19) is connected with rear hydraulic cylinder rodless cavity (701) by oil circuit 1-1, rear hydraulic cylinder rod chamber (702) is connected with vaccum fuel tank (10) by oil circuit 1-4, front hydraulic cylinder oil back chamber (19) is communicated with rear hydraulic cylinder rod chamber (702) by oil circuit 1-3, and described rear hydraulic cylinder rodless cavity (701) is connected with vaccum fuel tank (10) by oil circuit 1-2；The electromagnetic valve of oil circuit control break-make it is respectively provided with on oil circuit 1-1, oil circuit 1-2, oil circuit 1-3 and oil circuit 1-4；It is provided with four electromagnetic valves (12) in integrated valve block (11), is provided with between neck bush (1) and mandrel (21) for the electromagnetic valve plug (15) of above-mentioned solenoid valve and power interface (16)；
When the electromagnetic valve on unlatching oil circuit 1-1 and 1-3 and the electromagnetic valve on closedown oil circuit 1-2 and 1-4, ambient pressure oil enters front hydraulic cylinder oil suction chamber (18) by oil-in (22), under pressure oil effect, floating piston (9) is descending, hydraulic cylinder rodless cavity (701) after pressure oil entrance in front hydraulic cylinder oil back chamber (19), in rear hydraulic cylinder rod chamber (702), fluid is back to vaccum fuel tank (10), push rod (6) compresses glue tube base (4) under pressure, forcing packing element (20) stress deformation to expand clamp sleeve, packer setting action completes.
A kind of Novel packer based on ambient pressure the most according to claim 1, it is characterised in that: described oil-in (22) is provided with filter.
A kind of Novel packer based on ambient pressure the most according to claim 1, it is characterised in that: one end of described rear hydraulic cylinder (7) is connected by double thread with one end of front hydraulic cylinder (8).
A kind of Novel packer based on ambient pressure the most according to claim 1, it is characterised in that: described contiguous block (10) is connected by the way of welding with vaccum fuel tank (17).
A kind of Novel packer based on ambient pressure the most according to claim 4, it is characterised in that: described contiguous block (10) is connected by double thread with the other end of front hydraulic cylinder (8).
A kind of Novel packer based on ambient pressure the most according to claim 1, it is characterised in that: one end of described integrated valve block (11) is connected by double thread with the other end of vaccum fuel tank (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610495529.4A CN105927182B (en) | 2016-06-30 | 2016-06-30 | A kind of novel packer based on environmental pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610495529.4A CN105927182B (en) | 2016-06-30 | 2016-06-30 | A kind of novel packer based on environmental pressure |
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| Publication Number | Publication Date |
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| CN105927182A true CN105927182A (en) | 2016-09-07 |
| CN105927182B CN105927182B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610495529.4A Active CN105927182B (en) | 2016-06-30 | 2016-06-30 | A kind of novel packer based on environmental pressure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306948A (en) * | 2019-06-11 | 2019-10-08 | 中国石油大学(北京) | Packer |
| CN110374537A (en) * | 2019-07-16 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of electric-controlling valve type top package device |
| CN110630209A (en) * | 2019-10-20 | 2019-12-31 | 中国石油化工股份有限公司 | Long-acting self-locking packer and using method thereof |
| CN112324382A (en) * | 2020-11-03 | 2021-02-05 | 中国石油化工股份有限公司 | Plugging device and method for full-current-collection type gas production profile testing instrument |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2208127C1 (en) * | 2001-11-05 | 2003-07-10 | Общество с ограниченной ответственностью "Биттехника" | Double-acting hydraulic packer |
| CN1858399A (en) * | 2006-05-27 | 2006-11-08 | 东营市创世石油测试新技术开发有限责任公司 | Electric hydraulic packer for oil pipe |
| RU2347062C1 (en) * | 2007-10-16 | 2009-02-20 | Общество с ограниченной ответственностью "Лифт Ойл" | Packer |
| RU2379468C1 (en) * | 2008-09-09 | 2010-01-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Drilled parker |
| CN201513153U (en) * | 2009-09-09 | 2010-06-23 | 大连职业技术学院 | Supporting expansion-sealing electric packer |
| CN202338264U (en) * | 2011-10-21 | 2012-07-18 | 中国石油天然气股份有限公司 | Microcomputer-control packer |
| CN202402003U (en) * | 2011-12-13 | 2012-08-29 | 中国石油天然气集团公司 | Lead sealing sand control packer for 4-inch small holes |
| CN102979477A (en) * | 2012-11-28 | 2013-03-20 | 中国石油天然气股份有限公司 | Downhole electric control compression type packer |
| CN203050608U (en) * | 2012-11-28 | 2013-07-10 | 中国石油天然气股份有限公司 | Underground electric control compression packer |
| CN203362105U (en) * | 2013-07-28 | 2013-12-25 | 王帅伟 | Packer capable of opening step by step |
| CN104653146A (en) * | 2015-02-08 | 2015-05-27 | 孔涛 | Electric control packer |
| CN205918393U (en) * | 2016-06-30 | 2017-02-01 | 河南科技大学 | Novel packer based on ambient pressure |
-
2016
- 2016-06-30 CN CN201610495529.4A patent/CN105927182B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2208127C1 (en) * | 2001-11-05 | 2003-07-10 | Общество с ограниченной ответственностью "Биттехника" | Double-acting hydraulic packer |
| CN1858399A (en) * | 2006-05-27 | 2006-11-08 | 东营市创世石油测试新技术开发有限责任公司 | Electric hydraulic packer for oil pipe |
| RU2347062C1 (en) * | 2007-10-16 | 2009-02-20 | Общество с ограниченной ответственностью "Лифт Ойл" | Packer |
| RU2379468C1 (en) * | 2008-09-09 | 2010-01-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Drilled parker |
| CN201513153U (en) * | 2009-09-09 | 2010-06-23 | 大连职业技术学院 | Supporting expansion-sealing electric packer |
| CN202338264U (en) * | 2011-10-21 | 2012-07-18 | 中国石油天然气股份有限公司 | Microcomputer-control packer |
| CN202402003U (en) * | 2011-12-13 | 2012-08-29 | 中国石油天然气集团公司 | Lead sealing sand control packer for 4-inch small holes |
| CN102979477A (en) * | 2012-11-28 | 2013-03-20 | 中国石油天然气股份有限公司 | Downhole electric control compression type packer |
| CN203050608U (en) * | 2012-11-28 | 2013-07-10 | 中国石油天然气股份有限公司 | Underground electric control compression packer |
| CN203362105U (en) * | 2013-07-28 | 2013-12-25 | 王帅伟 | Packer capable of opening step by step |
| CN104653146A (en) * | 2015-02-08 | 2015-05-27 | 孔涛 | Electric control packer |
| CN205918393U (en) * | 2016-06-30 | 2017-02-01 | 河南科技大学 | Novel packer based on ambient pressure |
Non-Patent Citations (1)
| Title |
|---|
| 肖国华 等: "JDY441可取式卡瓦封隔器的研制与应用", 《石油机械》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306948A (en) * | 2019-06-11 | 2019-10-08 | 中国石油大学(北京) | Packer |
| CN110306948B (en) * | 2019-06-11 | 2020-08-28 | 中国石油大学(北京) | Packer (CN) |
| CN110374537A (en) * | 2019-07-16 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of electric-controlling valve type top package device |
| CN110630209A (en) * | 2019-10-20 | 2019-12-31 | 中国石油化工股份有限公司 | Long-acting self-locking packer and using method thereof |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
| CN112324382A (en) * | 2020-11-03 | 2021-02-05 | 中国石油化工股份有限公司 | Plugging device and method for full-current-collection type gas production profile testing instrument |
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| Publication number | Publication date |
|---|---|
| CN105927182B (en) | 2018-09-25 |
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