CN106089147B - It is adjustable to set force value fracturing packer - Google Patents
It is adjustable to set force value fracturing packer Download PDFInfo
- Publication number
- CN106089147B CN106089147B CN201610749579.0A CN201610749579A CN106089147B CN 106089147 B CN106089147 B CN 106089147B CN 201610749579 A CN201610749579 A CN 201610749579A CN 106089147 B CN106089147 B CN 106089147B
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- Prior art keywords
- spring
- packing element
- center pipe
- sliding block
- central tube
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- 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
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- 238000012856 packing Methods 0.000 claims abstract description 85
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 11
- 238000005381 potential energy Methods 0.000 claims description 7
- 239000007937 lozenge Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Adjusted the invention discloses one kind and set force value fracturing packer, including sequentially connected top connection, packing element central tube, the packing element central tube is externally provided with least two packing elements, packing element is set up in parallel with the coaxial of packing element central tube, it is separated by between adjacent packing element with spacer ring, the packing element central tube lower end is connected with spring center pipe, the spring center pipe is externally provided with spring, spring overcoat is equipped with spring sliding sleeve, and the lower end of the spring center pipe is connected with the first its center pipe, the second its center pipe in turn；Its center pipe is externally provided with sliding block, hydraulic cavities；The spacer ring is 45 ° of two-sided wedge shape.The present invention is combined by double-power hydraulic chamber, spring, wedge surface, control packer is set when oil pipe internal pressure reaches 3Mpa or so, reaches the optimal requirement of construction, by modulating initial tension of spring, to setting, unsealing Pressure behaviour modulation, meet the construction requirement under different situations.
Description
Technical field
The present invention relates to oil drilling and r eoovery machine apparatus field, more particularly to it is that a kind of adjustable force value pressure break that sets insulates
Device.
Background technology
Since reform and opening-up, national economy obtains rapid growth, and " scientific and technical innovation, autonomous innovation " has become domestic work at present
The mainstream of industry development, China's industry just progressively develop to the direction of intensive style, energy-saving and emission-reduction, low-carbon.Oil is China's modern times work
" blood " and the economic lifeline of industry development, are a kind of important strategic resources, influence the stability and security of national energy.Oil is opened
In adopting, oil well passes through long-term production, the organic matter precipitation of reservoir fluid and shakes out, and necessarily causes reservoir pore space near shaft bottom
Block, cause porosity and permeability to decline, influence oil well yield.Therefore the later stage is exploited in oil well, frequently with pressure break
Acidifying is handled, to change low yield state.Need to carry out related stratum up and down with packer in fracture acidizing operating tool string
Packing, carrys out the corresponding oil reservoir of fracture acidizing.
Present domestic market common are K344 expandings packer and Y344 compression-type packers, the packing of K344 expandings
It is 1Mpa that device, which sets pressure, and it is small to set pressure, but sets that pressure is too small, and inside is pressurized and easily sets, and causes pressure break due to starting
Early period, low pressure well-flushing was difficult, or even the premature setting during instrument is gone into the well, and was contacted and friction damage with oil well casing wall, and
Due to it is structural the drawbacks of, the plastic deformation of packing element and under down hole problem, rebound deblocking is difficult, often produces sand plug
Phenomenon, is the recycling of oil/gas well later stage instrument, there are more risk and trouble.Another Y344 compression-types packer, it is justified
Cylindricality packing element overcomes rebound difficulty, easy to the progress of well-flushing program, but the pressure that sets needed is 8-10Mpa, significantly super
That crosses optimal 3Mpa or so sets pressure requirements.
Applicant applied for that a key name is on May 16th, 2015《It is un-throttled to set Y344 type fracturing packers》Invention
Patent, disclose it is a kind of it is un-throttled set Y344 type fracturing packers, contain top connection, packing element, its center pipe, power are slided
Block, spring center pipe, spring, spring cover of driver, hydraulic cavities, air chamber, sealing ring, top connection are equipped with three groups of packing elements successively outside
With spacer ring, its end is connected to its center pipe, its center pipe outside power sliding block, under connect spring center pipe, by its center
The annular seal space that pipe, power sliding block are formed is known as air chamber, the cavity being made of power sliding block, its center pipe, spring center pipe
For hydraulic cavities, spring driving head is connect under power sliding block, spring, its center are equipped between spring driving head and spring center pipe
Pipe, be equipped with three groups of sealing rings between spring center pipe, power sliding block.
On the basis of the invention, the compression-type packer that applicant sets throttling is improved, and is solved existing
Packer there are the shortcomings that, set pressure initial value it is excessive or too small, deblocking it is difficult or incomplete the problems such as.
The content of the invention
It is an object of the invention to packer setting pressure is controlled optimum state 3Mpa used at the scene or so；Pressure break
After construction, pressure release can unseal completely, avoid existing instrument not exclusively sand caused by deblocking from burying instrument phenomenon, there is provided a kind of adjustable
Section sets force value fracturing packer.
For achieving the above object, the technical scheme is that：One kind is adjustable to set force value fracturing packer, wraps
Sequentially connected top connection, packing element central tube are included, the packing element central tube is externally provided with least two packing elements, packing element and packing element center
The coaxial of pipe is set up in parallel, and is separated by between adjacent packing element with spacer ring, the packing element central tube lower end is connected with spring center pipe, institute
State spring center pipe and be externally provided with spring, spring overcoat is equipped with spring sliding sleeve, and the lower end of the spring center pipe is connected with turn
One its center pipe, the second its center pipe；
The first its center pipe is externally provided with the first sliding block, and the first sliding block is matched somebody with somebody with the first its center pipe coaxially slide
Close, mating surface is equipped with the first hydraulic cavities, and the corresponding first its center pipe of first hydraulic cavities is equipped with the slot that pressurizes, described
Pressurization slot is strip, is set along the first its center pipe generatrix direction, and circular channel is equipped with the middle part of pressurization slot, described to add
Press Ge Feng≤0.2mm；
The second its center pipe is identical with the first its center pipe structure, including the second sliding block, the second hydraulic cavities；
Second sliding block, the first sliding block, spring sliding sleeve, packing element contact successively；
The spacer ring is 45 ° of two-sided wedge shape, and the end face that the packing element is contacted with spacer ring, is consistent with lozenges shape；
Injection fluid in pipe, fluid enter the first hydraulic cavities, the second hydraulic cavities by slot, and fluid pressurizes, the first sliding block,
Second sliding block, which is pressurized, to be slided, and push the spring sliding sleeve, spring sliding sleeve is moved by thrust, and spring-compressed, thrust sector is converted into spring
Elastic potential energy, is partly delivered to packing element, and packing element is contacted one end with spacer ring and climbed deformation along lozenges by axial force, outside diameter increase,
Realization is set；Tube fluid depressurizes, and the first sliding block, the second sliding block thrust disappear, and spring, the release of packing element elastic potential energy, spring are slided
Set, the first sliding block, the second sliding block return, packing element restore to the original state, and outside diameter reduces, and realize deblocking.
Preferably, the spring is disc spring to one kind as the present invention.
As a modification of the present invention, first sliding block is connected with spring sliding sleeve by power distribution ring, power point
Also it is connected with ring with spring, modulates the pretightning force of spring.
The beneficial effects of the invention are as follows：
1st, the packer is combined on the basis of the invention of this series by double-power hydraulic chamber, spring, wedge surface, control envelope
Set every device when oil pipe internal pressure reaches 3Mpa, reach the optimum state of actual use.
2nd, by modulating initial tension of spring, reach packing element and most preferably set force value, at the same coordinate initial tension of spring with it is anti-
To frictional force,（Frictional force refers to that the power block of power cavity and reverse friction power existing for central tube, and power block outside sand are made
Into resistance）Give packing element one entirely free on his space, under the effect of packing element molecular force, the construction for reaching rebound deblocking completely will
Ask.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the partial enlarged view at I in figure.
Embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below in conjunction with attached drawing.
As shown in Figure 1, a kind of adjust sets force value fracturing packer, sequentially connected top connection 1, packing element center are included
Pipe 2, spring center pipe 3, the first its center pipe 4, the packing element central tube 2 are externally provided with least two packing elements 6, multiple packing elements 6
Along 2 axial alignment of packing element central tube, it is separated by between adjacent packing element 6 with spacer ring 7, the spacer ring 7 is 45 ° of two-sided wedge shapes, the glue
The end face that cylinder 6 is contacted with spacer ring 7, is consistent with lozenges shape, is also 45 ° of inclined-planes.Set pressure promote under, packing element 6 along every
Ring lozenges climbs, and is more also easy to produce and is radially expanded, and completes to set, and pressure is set so as to reduce.
The spring center pipe 3 is externally provided with spring sliding sleeve 11, and the first its center pipe 4 is externally provided with the first sliding block 14, described
It is set with packing element drive ring 8 outside packing element central tube 2, packing element drive ring 8 is tight against on the end face of the packing element 6, packing element drive ring 8
Extrude packing element 6,6 stress deformation of packing element.
Packing element drive ring 8 is connected with the spring sliding sleeve 11 slided along packing element central tube 3.
Ring packing intracavitary between the spring center pipe 3 and spring sliding sleeve 11 is equipped with spring 10, and spring 10 is disc spring,
10 one end of spring and 2 end contact of packing element central tube, the other end are equipped with spring drive ring 12, outside the spring center pipe 3
Power distribution ring 13 is additionally provided with, the power distribution ring 13 is threadedly coupled with the spring sliding sleeve 11, spring drive ring 12 respectively,
Spring sliding sleeve 11 is fixed with spring drive ring 12 by power distribution ring 13, by adjusting spring sliding sleeve 11, spring drive ring 12
With the reach of the cooperation of power distribution ring 13,10 pretension length of spring can be adjusted, so as to provide different spring-returns
Power.
As shown in Figure 1, 2, described first sliding block, 14 one end is connected with the power distribution ring 13, first sliding block 14 with
First its center pipe, 4 mating surface is equipped with the first hydraulic cavities 18, and first hydraulic cavities 18 are annular.
The corresponding first its center pipe 4 of first hydraulic cavities 18 is equipped with pressurization slot 9, and the pressurization slot 9 is
Strip, is set along 4 generatrix direction of the first its center pipe, and 9 middle part of pressurization slot is equipped with circular channel（Do not marked in figure）, institute
9 sizes of pressurization slot >=0.2mm is stated, first sliding block 14 is slided along the first its center pipe 4, first hydraulic cavities 18
Volume change.
The second its center pipe 5,4 knot of the second its center pipe 5 and the first its center pipe are connect under first its center pipe 4
Structure is identical, and 5 the second sliding block of peripheral hardware 15 of the second its center pipe, the second sliding block 15 is identical with 14 structure of the first sliding block, the second sliding block
5 and second sliding block of central tube, 15 mating surface is equipped with the second hydraulic cavities 20, and second sliding block 15 is slided along the second its center pipe 5
It is dynamic.
Second sliding block 15 is connected with the first sliding block 14.
First hydraulic cavities 18, the increase of 20 internal pressure of the second hydraulic cavities, first hydraulic cavities 18, the second hydraulic cavities
20 stress move in the same direction, and the first sliding block 14, the second sliding block 15 are by superposed force.
First sliding block 14,15 propulsion power distribution ring 13 of the second sliding block, 13 push the spring sliding sleeve 11 of power distribution ring
It is mobile, while make 10 forced compression of spring, spring sliding sleeve 11 promotes packing element drive ring 8, and packing element drive ring 8 compresses axially packing element 6,
Packing element 6 is radially expanded by responsive to axial force, generation, and realization is set.
Injection fluid in pipe, fluid enter the first hydraulic cavities 18, the second hydraulic cavities 20 by slot 9, and fluid pressurizes, and first
Sliding block 14, the second sliding block 15, which are pressurized, to be slided, and push the spring sliding sleeve 11, spring sliding sleeve 11 is moved by thrust, and spring 10 compresses, thrust
10 elastic potential energy of spring is partially converted into, is partly delivered to packing element 6, packing element 6 is contacted one end along wedge shape by axial force with spacer ring 7
Face is climbed deformation, and outside diameter increase, realization is set；Tube fluid depressurizes, and the first sliding block 14,15 thrust of the second sliding block disappear, spring
10th, 6 elastic potential energy of packing element discharges, and spring sliding sleeve 11, the first sliding block 14,15 return of the second sliding block, packing element 6 restore to the original state, outside diameter
Reduce, realize deblocking.
First sliding block 14 is combined with the second sliding block 15 forms double dynamical chamber group, and the disc spring can be multigroup, form disc spring
Group, multigroup packing element form packing element group.
In sliding block and packing element, important a disc spring or disc spring group are superimposed, has generated following critical function：
A：Disc spring group assembles conjunction with packing element（Two inner chamfer packing elements, centre are a double wedge spacing bodies）Reach any adjustment
The function of initial setting force；
B：Disc spring group assembles conjunction with double dynamical chamber（Two power cavity overlapped in series, actually add the inner section of power cavity
Product, under identical pressure, pressure multiplier.）In installation process, disc spring group have accumulated certain energy by precompressed, be sufficiently more than dynamic
There are sand plug and other resistances frictional force between power sliding block and power cavity central tube and underground to merge power, can slide power
Block return by force, reaches complete decapsulation functions.
Shown according to experiment, cylindrical packing element produces being radially expanded for 3-4mm and could realize and set, and packing element generation is this
Deformation needs the axial force that the external world gives 6-8 tons, and according to existing structure, oily overpressure needs to reach 20Mpa, can be just sliding block production
Raw enough axial forces.Packer use environment is limited to, hydraulic cavities effective pressure area is up to 30cm2.Double dynamical chamber
Using in the case where not changing the size of hydraulic cavities effective pressure area can be increased, under identical environment, it is only necessary to 10Mpa
Internal pressure, with regard to that can set.
But the requirement of live 3Mpa is remained above in such cases, has in the prior art and packing element, spacer ring is processed into slope
Face, when the packing element is set early period, rises along slope surface, expands outwardly.Reach and set effect, its physical arrangement determines setting force very
It is small to can be achieved with, to overcome intermolecular larger Van der Waals force compared with cylindrical packing element, can more realize and be sat under low-pressure state
Envelope.It is demonstrated experimentally that using such a structure, under the promotion of double dynamical chamber, initially set pressure and land vertically to 1Mpa, while bring again
New problem, the deblocking of inner chamfer packing element is there are certain imperfection, screen resilience are smaller than pure circle cylindricality packing element, in external force and space
Limitation under cannot completely spring back and unseal.
The present invention is combined by double-power hydraulic chamber, spring, wedge surface packing element spacer ring, it is possible to achieve packer setting pressure
Adjust preset.Increase spring assembly among double-power hydraulic chamber, the combination of wedge surface packing element spacer ring, on the one hand can be inhaled when setting
The kinetic energy that double-power hydraulic chamber produces is received, the axial force for setting equivalent to 3Mpa and being produced under pressure, the opposing party are only provided to packing element
Face is in deblocking, by elastic potential energy push the spring sliding sleeve, the sliding block returning quickly of compression storage when setting, for the recovery of packing element
Original state provides space, realizes smoothly deblocking.
Packing element central tube and power the distribution interannular is equipped with sealing ring, is equipped between the first sliding block and the first its center pipe
The groove of embedded seal ring；Sealing ring, the second sliding block and the second its center pipe are equipped between second sliding block and the first sliding block
Between be equipped with embedded seal ring groove.
Described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to the scope of protection of the invention.
Claims (3)
1. one kind, which adjusts, sets force value fracturing packer, including sequentially connected top connection, packing element central tube, in the packing element
Heart pipe is externally provided with least two packing elements, and packing element is set up in parallel with the coaxial of packing element central tube, is separated by between adjacent packing element with spacer ring,
It is characterized in that, the packing element central tube lower end is connected with spring center pipe, the spring center pipe is externally provided with spring, outside spring
Spring sliding sleeve is set with, the lower end of the spring center pipe is connected with the first its center pipe, the second its center pipe in turn；
The first its center pipe is externally provided with the first sliding block, and the first sliding block and the first its center pipe coaxially slide coordinate, match somebody with somebody
Conjunction face is equipped with the first hydraulic cavities, and the corresponding first its center pipe of first hydraulic cavities is equipped with pressurization slot, the pressurization
Slot is strip, is set along the first its center pipe generatrix direction, and circular channel is equipped with the middle part of pressurization slot；
The second its center pipe is identical with the first its center pipe structure, including the second sliding block, the second hydraulic cavities；
Second sliding block, the first sliding block, spring sliding sleeve, packing element contact successively；
The spacer ring is 45 ° of two-sided wedge shape, and the end face that the packing element is contacted with spacer ring, is consistent with lozenges shape；
Injection fluid in pipe, fluid enter the first hydraulic cavities, the second hydraulic cavities, fluid pressurization, the first sliding block, second by slot
Sliding block, which is pressurized, to be slided, and push the spring sliding sleeve, spring sliding sleeve is moved by thrust, and spring-compressed, thrust sector is converted into spring
Potential energy, is partly delivered to packing element, and packing element is contacted one end with spacer ring and climbed deformation along lozenges, outside diameter increase, is realized by axial force
Set；Tube fluid depressurizes, and the first sliding block, the second sliding block thrust disappear, spring, the release of packing element elastic potential energy, spring sliding sleeve, the
One sliding block, the second sliding block return, packing element restore to the original state, and outside diameter reduces, and realize deblocking.
2. adjust set force value fracturing packer according to claim 1, it is characterised in that the spring is disc spring.
3. force value fracturing packer is set according to any described adjust of claim 1 or 2, it is characterised in that described first slides
Block is connected with spring sliding sleeve by power distribution ring, and power distribution ring is also connected with spring, modulates the pretightning force of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749579.0A CN106089147B (en) | 2016-08-29 | 2016-08-29 | It is adjustable to set force value fracturing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749579.0A CN106089147B (en) | 2016-08-29 | 2016-08-29 | It is adjustable to set force value fracturing packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106089147A CN106089147A (en) | 2016-11-09 |
| CN106089147B true CN106089147B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610749579.0A Expired - Fee Related CN106089147B (en) | 2016-08-29 | 2016-08-29 | It is adjustable to set force value fracturing packer |
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| Country | Link |
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| CN (1) | CN106089147B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060906B (en) * | 2017-11-22 | 2020-04-28 | 盐城他山石液压机械有限公司 | Non-throttling fracturing packer for high-pressure oil-gas well |
| CN110905438A (en) * | 2020-01-14 | 2020-03-24 | 铁岭曲氏石油技术开发服务有限公司 | Forced unsetting packer and control method thereof |
| CN113847018A (en) * | 2021-09-30 | 2021-12-28 | 于婷婷 | General pilot production tool for packing off earth formation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057016Y (en) * | 2007-06-26 | 2008-05-07 | 大港油田集团有限责任公司 | Hydraulic self-sealing slip packer |
| CN201650206U (en) * | 2010-01-11 | 2010-11-24 | 中国石油化工股份有限公司 | Permanent type midway seating-preventing packer |
| CN202000959U (en) * | 2011-04-28 | 2011-10-05 | 张立显 | Sliding sleeve type fracturing packer |
| CN203362106U (en) * | 2013-07-25 | 2013-12-25 | 中国石油天然气股份有限公司 | Mechanical repeated releasing oil production packer |
| CN203626712U (en) * | 2013-11-04 | 2014-06-04 | 中国石油天然气股份有限公司 | Cold and hot double-acting packer |
| CN205955690U (en) * | 2016-08-29 | 2017-02-15 | 盐城市畅海精密机械有限公司 | Adjustable setting force value fracturing packer |
-
2016
- 2016-08-29 CN CN201610749579.0A patent/CN106089147B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057016Y (en) * | 2007-06-26 | 2008-05-07 | 大港油田集团有限责任公司 | Hydraulic self-sealing slip packer |
| CN201650206U (en) * | 2010-01-11 | 2010-11-24 | 中国石油化工股份有限公司 | Permanent type midway seating-preventing packer |
| CN202000959U (en) * | 2011-04-28 | 2011-10-05 | 张立显 | Sliding sleeve type fracturing packer |
| CN203362106U (en) * | 2013-07-25 | 2013-12-25 | 中国石油天然气股份有限公司 | Mechanical repeated releasing oil production packer |
| CN203626712U (en) * | 2013-11-04 | 2014-06-04 | 中国石油天然气股份有限公司 | Cold and hot double-acting packer |
| CN205955690U (en) * | 2016-08-29 | 2017-02-15 | 盐城市畅海精密机械有限公司 | Adjustable setting force value fracturing packer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106089147A (en) | 2016-11-09 |
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Inventor after: Wang Yuanyuan Inventor after: Wang Shuhai Inventor before: Wang Shuhai |
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