CN107366528A - A kind of water injection well downhole oscillation allocation process tubing string and method - Google Patents
A kind of water injection well downhole oscillation allocation process tubing string and method Download PDFInfo
- Publication number
- CN107366528A CN107366528A CN201610322869.7A CN201610322869A CN107366528A CN 107366528 A CN107366528 A CN 107366528A CN 201610322869 A CN201610322869 A CN 201610322869A CN 107366528 A CN107366528 A CN 107366528A
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- China
- Prior art keywords
- injection well
- well downhole
- tubing string
- spring
- vibration
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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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 61
- 239000007924 injection Substances 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000010355 oscillation Effects 0.000 title claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000003190 augmentative effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of water injection well downhole oscillation allocation process tubing string and method, wherein tubing string includes oscillating buffer, injection well downhole flow regulator occurs for vibration, the oscillating buffer upper end is connected with upper tubing round thread, lower end is then connected with variable buckle joint screw thread, and fixed with locking nail, the vibration occurs injection well downhole flow regulator upper end and connects change buckle joint by pipe nipple, and lower end is then even stringed by box cupling.The present invention unifies water filling and block releasing technique, using injecting water energy, injection well downhole flow regulator occurs by vibrating in underground, form hydraulic oscillation pulse, it can effectively release and prevent the borehole wall nearby stratum and farther formation blockage, while survey tune, the purpose of augmented injection can be realized, and save individual well cost, the activity duration is effectively reduced, extends the well term of validity.
Description
Technical field
The present invention relates to oilfield exploitation process pipe string, specifically a kind of water injection well downhole oscillation injection allocation work
Skill tubing string and method.
Background technology
Current domestic conventional waterflooding well is all with long-term injecting water under hydrostatic pressure water flooding regime, is often occurred near
Well area formation blockage and contamination phenomenon, reduce stratum water absorbing capacity.For renwing stratum water injection rate,
The method that high pressure water injection need to be taken, such as the de-plugging process measure such as pressure break, acidifying, cause oil reservoir to injure,
Add crude oil cost, or the method using vibration：There is underground to have children outside the state plan vibratory drilling method, down-hole mechanical vibration
Method and underground shock wave method etc., certain effect is achieved, still, the method for oscillating used at present is equal
There is weak point, Chinese patent CN 91207925.8 provides a kind of energy storage type hydraulic pulse water ingection device,
The injector is underground vibrating generating means, though injection water can be made directly to evoke vibration on the stratum, its
Complicated, installation difficulty, device is under pressure in underground, temperature etc. influences, and reliability is low and the life-span
It is short.
The content of the invention
It is an object of the invention to provide a kind of water injection well downhole oscillation allocation process tubing string and method, underground
Simple and reliable for structure, field conduct method is easy, effectively improves injection rate.Water filling and block releasing technique are closed
One, using water energy is injected, injection well downhole flow regulator occurs by vibrating in underground, forms hydraulic oscillation pulse, can
Effectively to release and prevent stratum and farther formation blockage near the borehole wall, while survey tune, augmented injection can be realized
Purpose, and saved individual well cost, effectively reduced the activity duration, extend the well term of validity.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of water injection well downhole oscillation
Allocation process tubing string, including oscillating buffer, vibration occur injection well downhole flow regulator, the oscillating buffer upper end with
Upper tubing round thread connection, lower end are then connected with variable buckle joint screw thread, and are fixed with locking nail, the vibration
Generation injection well downhole flow regulator upper end is connected by pipe nipple becomes buckle joint, and lower end is then even stringed by box cupling.
The oscillating buffer includes outer barrel, internal frame pipe, upper spring, lower spring, including the outer sleeve
Annular space is formed on the outside of frame pipe and between the two, spring cut-off step is provided with the middle part of the internal frame pipe outer wall,
Above-mentioned annular space is divided into two chambers up and down and places upper spring and lower spring respectively.
The internal frame pipe bottom is also cased with holding top cover, and the end top cover upper end is threadedly coupled with outer barrel, is used in combination
Locking nail is fixed, and the upper spring upper end is withstood on the inner shoulder table that outer tube inner wall opens up, under the lower spring
End is withstood in the top cover of end.
The internal frame pipe outer wall is additionally provided with upper and lower positioning step, is respectively cooperating with outer barrel and end top cover carries out axle
To positioning.
The orientation spool that injection well downhole flow regulator includes being sequentially connected from top to bottom, top connection, spin-ended occurs for the vibration
Set, lower contact, and its it is arranged on the oscillating tube inside top connection and the rotary core being arranged on inside spin-ended set
Son, annular space is formed between the rotation fuse and spin-ended set, spring and regulation ring, spring are installed in annular space
Upper end spring base is threadedly coupled with oscillating tube lower end, and lower spring end is withstood in regulation ring, the rotary core
Sub- outer wall opens up protrusion land, and the land bottom surface, which opens up arc groove and is arranged on down by pattern rolling ball rotation, to be connect
Head upper surface.
Described orientation spool is threadedly coupled with top connection, and is fastened with the anti-turn screw for being provided with sealing ring.
Step is set in described top connection, the raised step set with vibration pipe outer wall coordinates, under top connection
Portion is provided with the fluid hole being uniformly distributed along the circumference, and described oscillating tube top is provided with the liquid-entering hole being uniformly distributed along the circumference,
Described rotation fuse lower end is provided with adjustment hole, and opens up and connect under the rotary core sub-portion insertion of adjustment hole
Head is internal.
Described spin-ended set upper side upper surface is provided with U-type groove and coordinated with top connection lower end, in spin-ended set inner chamber
Bottom is circumferentially arranged with two keyways, and described regulation ring is externally provided with circumferentially symmetrical rectangular preiection,
Described regulation ring is placed in the keyway of spin-ended set, passes through trapezoidal thread with rotation fuse on the inside of regulation ring
Gap coordinates.
In order to reach above-mentioned another object, present invention employs following technical scheme, a kind of water injection well underground
Vibrate allocation method, first by plug, set slips, lower packet, oscillating buffer, lower oil pipe,
Box cupling, vibration occur injection well downhole flow regulator, pipe nipple, become buckle joint, oscillating buffer, upper oil pipe, upper packer
It is sequentially connected with centralizer and in tripping in water filling casing, makes vibration that injection well downhole flow regulator occur and reach water filling interval；
Secondly, low pressure liquid is injected in oil pipe, makes to set slips and lower packet is set；
Then, oil pipe hydraulic pressure is discharged, transfers tubing string, oil pipe injects slightly higher hydraulic pressure, sets upper packer；
Finally, water of the injection with pressure in oil pipe, injection well downhole flow regulator, which occurs, for vibration makes one section of ground of injection water one section
Into water filling layer, waterpower pulse is produced.
Compared to prior art, the invention has the advantages that：
Injection well downhole flow regulator is occurred using vibration, injection water is turned into pulsed power stream from the circulation of continuous hydrostatic, effectively
Inhibit in oil pipe and the generation of injection well downhole flow regulator peripheral stratum fouling occurs for vibration, and to a certain extent to note
Water layer serves de-plugging effect.
Process pipe string is effectively improved because of tubing string vibration environment caused by water filling, protection using oscillating buffer
The stability of packer working condition, make water injection string in well life.
Tool construction on integrated artistic tubing string is simple and reliable, and site construction technology is simple.
Brief description of the drawings
Fig. 1 is a kind of structural representation of water injection well downhole oscillation allocation process tubing string of the present invention；
Fig. 2 is the structural representation of oscillating buffer；
Fig. 3 and Fig. 4 is the structural representation that injection well downhole flow regulator occurs for vibration；
Fig. 5 is regulation ring structural representation；
Fig. 6 is the one of which embodiment of water injection well downhole oscillation allocation process tubing string at the scene.
In figure：Upper oil pipe 1, oscillating buffer 2, become buckle joint 3, locking nail 4, pipe nipple 5, vibration hair
Raw injection well downhole flow regulator 6, box cupling 7, lower oil pipe 8, sleeve pipe 9；
Centralizer 101, upper packer 102, water filling layer 103, lower packet 104, set slips 105,
Plug 106；
It is outer barrel 201, internal frame pipe 202, sealing ring 203, upper spring 204, upper positioning step 205, lower fixed
Position step 208, spring cut-off step 206, lower spring 207, locking nail 209, end top cover 210, sealing
Circle 211；
It is orientation spool 601, top connection 603, anti-turn screw 604, sealing ring 605, oscillating tube 606, close
Seal 608, raised step 609, fluid hole 610, it is locking nail 611, sealing ring 622, it is spin-ended set 613,
Sealing ring 614, spring 615, spring base 616, sealing ring 617, rotation fuse 618, trapezoidal thread
619th, keyway 620, regulation ring 621, ball 622, sealing ring 623, sealing ring 624, it is locking nail 625,
Lower contact 626.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only carries
For reference with purposes of discussion, not it is used for being any limitation as the present invention.
According to Fig. 1, a kind of water injection well downhole oscillation allocation process tubing string, including upper oil pipe 1, oscillation buffer
Device 2, become buckle joint 3, locking nail 4, pipe nipple 5, vibration generation injection well downhole flow regulator 6, box cupling 7 and lower oil pipe 8,
It is threadedly coupled on the oscillating buffer 2 with upper oil pipe 1, lower end is threadedly coupled with becoming buckle joint 3, and
Fixed with locking nail 4, change buckle joint 3 lower end order is threadedly coupled pipe nipple 5, injection well downhole flow regulator 6 occurs for vibration,
Box cupling 7 and lower oil pipe 8.
According to Fig. 2, the oscillating buffer 2 include outer barrel 201, internal frame pipe 202, upper spring 204,
Lower spring 207 and end top cover 210, the middle part of internal frame pipe 202 are provided with spring cut-off step 206, will pacified
Upper spring 204 and lower spring 207 in outer barrel are separated, and internal frame pipe is additionally provided with both sides about 202
Lower positioning step 205,208, the top of internal frame pipe 202 are sealed with outer barrel 201 by sealing ring 203, under
Portion is sealed with end top cover 210 by sealing ring 211, and described end top cover 210 is enclosed under internal frame pipe 202
Portion, lower spring 207 is withstood, be threadedly coupled with outer barrel 201, and fixed with locking nail 209.
According to Fig. 3, Fig. 4, Fig. 5, injection well downhole flow regulator, which occurs, for the vibration includes orientation spool 601, top connection
603rd, oscillating tube 606, spin-ended set 613, spring 615, spring base 616, rotation fuse 618, regulation
Ring 621, ball 622 and lower contact 626, described orientation spool 601 are threadedly coupled with top connection 603,
And fastened with the anti-turn screw 604 for being provided with sealing ring 605, described oscillating tube 606 is arranged on and above connect
In first 603, sealed with top connection 603 and spin-ended set 613 by sealing ring 608,612, its middle part is convex
Step 609 is played to be located in top connection 603 between step and spin-ended set 613, on described spin-ended set 613
Portion is threadedly coupled with top connection 603, and is connected with the locking fastening of nail 611, bottom and the screw thread of lower contact 626
Connect, by the locking fastening of nail 625, sealed using sealing ring 623, described spring base 616 is placed in only
In rotation set 613, sealed with sealing ring 614, upper end is threadedly coupled with oscillating tube 606, lower end inside with
Rotation fuse 618 is sealed by sealing ring 617, and lower end outside entangles spring 615, described regulation ring
621 are placed in the keyway 620 of spin-ended set 613, and spring 615, inner side and rotation fuse are withstood in upper surface
618 are coordinated by the gap of trapezoidal thread 619, and described rotation fuse 618 is arranged on down by ball 622
In joint 626, sealed with sealing ring 624.
The described top of orientation spool 601 is provided with positioning hole 602.
Step is set in described top connection 603, is coordinated with the raised step 609 of oscillating tube 606, bottom
Provided with the fluid hole 610 being uniformly distributed along the circumference.
The described top of oscillating tube 606 is provided with the liquid-entering hole 607 being uniformly distributed along the circumference, and raised platform is set on the outside of middle part
Rank 609.
The described upper end upper surface of spin-ended set 613 is provided with U-type groove and internal thread, with the lower end of top connection 603
Coordinate, inner chamber middle and lower part is circumferentially arranged with two keyways 620.
Described regulation ring 621 is externally provided with circumferentially symmetrical rectangular preiection 6211, and inner side sets trapezoidal thread
6212。
The described outside of rotation fuse 618 is processed as trapezoidal thread 619, and outside lower end sets raised step, convex
Play step lower surface and be provided with arc groove, lower end is provided with adjustment hole 627.
The wherein exemplary embodiments of field conduct of the present invention are as follows, the vibration water filling of a bite low-permeability oil deposit individual layer
Construction technology operation：As shown in Figure 6.
First by plug 106, set slips 105, lower packet 104, oscillating buffer 2, lower oil pipe 8,
Box cupling 7, vibration occur injection well downhole flow regulator 6, pipe nipple 5, become buckle joint 3, oscillating buffer 2, upper oil pipe 1,
Upper packer 102 and centralizer 101 are sequentially connected with and in tripping in water filling casing 9, match somebody with somebody vibration
Hydrophone 6 reaches 103 sections of water filling layer；
Secondly, low pressure liquid is injected in oil pipe 1, makes to set slips 105 and lower packet 104 is set；
Then, the hydraulic pressure of oil pipe 1 is discharged, decentralization tubing string certain distance is (according to the inner spring of oscillating buffer 2
204th, 207 operating distances are set), oil pipe 1 injects slightly higher hydraulic pressure, sets upper packer 102；
Finally, the water of certain pressure is injected in oil pipe 1, injection well downhole flow regulator 6, which occurs, for vibration makes one section one of injection water
Section ground enters water filling layer 103, and produces waterpower pulse and wash away oil reservoir.
When need carry out water injection rate allotment when, can tripping in patent 200910018261.5 describe integrated test
Adjust instrument to carry out flow rate test, by rotating fuse adjustment regulation ring position, initial tension of spring is changed,
Change injection pressure difference, so as to adjust the vibration frequency of oscillating tube, realize injection flow allocating.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, its
He all should all belong to the scope of the claims of the invention with the equivalence changes of the patent spirit of the present invention.
Claims (9)
- A kind of 1. water injection well downhole oscillation allocation process tubing string, it is characterized in that, injection well downhole flow regulator occurs including oscillating buffer, vibration, the oscillating buffer upper end is connected with upper tubing round thread, lower end is then connected with variable buckle joint screw thread, and fixed with locking nail, the vibration occurs injection well downhole flow regulator upper end and becomes buckle joint by pipe nipple connection, and lower end is then even stringed by box cupling.
- A kind of 2. water injection well downhole oscillation allocation process tubing string according to claim 1, it is characterized in that, the oscillating buffer includes outer barrel, internal frame pipe, upper spring, lower spring, the outer sleeve is on the outside of internal frame pipe and forms annular space between the two, spring cut-off step is provided with the middle part of the internal frame pipe outer wall, above-mentioned annular space is divided into two chambers up and down places upper spring and lower spring respectively.
- A kind of 3. water injection well downhole oscillation allocation process tubing string according to claim 2, it is characterized in that, the internal frame pipe bottom is also cased with holding top cover, the end top cover upper end is threadedly coupled with outer barrel, and fixed with locking nail, the upper spring upper end is withstood on the inner shoulder table that outer tube inner wall opens up, and the lower spring lower end is withstood in the top cover of end.
- 4. a kind of water injection well downhole oscillation allocation process tubing string according to claim 3, it is characterised in that the internal frame pipe outer wall is additionally provided with upper and lower positioning step, is respectively cooperating with outer barrel and end top cover carries out axially position.
- A kind of 5. water injection well downhole oscillation allocation process tubing string according to claim 1, it is characterized in that, the orientation spool that injection well downhole flow regulator includes being sequentially connected from top to bottom occurs for the vibration, top connection, spin-ended set, lower contact, and its it is arranged on the oscillating tube inside top connection and the rotation fuse being arranged on inside spin-ended set, annular space is formed between the rotation fuse and spin-ended set, installation spring and regulation ring in annular space, spring upper end spring base is threadedly coupled with oscillating tube lower end, lower spring end is withstood in regulation ring, the rotation fuse outer wall opens up protrusion land, the land bottom surface opens up arc groove and is arranged on lower contact upper surface by pattern rolling ball rotation.
- 6. a kind of water injection well downhole oscillation allocation process tubing string according to claim 5, it is characterised in that described orientation spool is threadedly coupled with top connection, and is fastened with the anti-turn screw for being provided with sealing ring.
- A kind of 7. water injection well downhole oscillation allocation process tubing string according to claim 5, it is characterized in that, step is set in described top connection, the raised step set with vibration pipe outer wall coordinates, top connection bottom is provided with the fluid hole being uniformly distributed along the circumference, described oscillating tube top is provided with the liquid-entering hole being uniformly distributed along the circumference, and described rotation fuse lower end is provided with adjustment hole, and the rotary core sub-portion for opening up adjustment hole is inserted inside lower contact.
- A kind of 8. water injection well downhole oscillation allocation process tubing string according to claim 5, it is characterized in that, described spin-ended set upper side upper surface is provided with U-type groove and coordinated with top connection lower end, spin-ended set inner chamber middle and lower part is circumferentially arranged with two keyways, described regulation ring is externally provided with circumferentially symmetrical rectangular preiection, described regulation ring is placed in the keyway of spin-ended set, is coordinated on the inside of regulation ring with rotation fuse by trapezoidal thread gap.
- A kind of 9. water injection well downhole oscillation allocation method, it is characterized in that, first by plug, set slips, injection well downhole flow regulator, pipe nipple occur for lower packet, oscillating buffer, lower oil pipe, box cupling, vibration, become buckle joint, oscillating buffer, upper oil pipe, upper packer and centralizer are sequentially connected with and in tripping in water filling casing, make vibration that injection well downhole flow regulator occur and reach water filling interval；Secondly, low pressure liquid is injected in oil pipe, makes to set slips and lower packet is set；Then, oil pipe hydraulic pressure is discharged, transfers tubing string, oil pipe injects slightly higher hydraulic pressure, sets upper packer；Finally, water of the injection with pressure in oil pipe, injection well downhole flow regulator, which occurs, for vibration makes one section of ground of injection water one section enter water filling layer, produces waterpower pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322869.7A CN107366528B (en) | 2016-05-13 | 2016-05-13 | A kind of water injection well downhole oscillation allocation process tubing string and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322869.7A CN107366528B (en) | 2016-05-13 | 2016-05-13 | A kind of water injection well downhole oscillation allocation process tubing string and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366528A true CN107366528A (en) | 2017-11-21 |
| CN107366528B CN107366528B (en) | 2019-07-02 |
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ID=60303767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610322869.7A Active CN107366528B (en) | 2016-05-13 | 2016-05-13 | A kind of water injection well downhole oscillation allocation process tubing string and method |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458150A (en) * | 2018-11-16 | 2019-03-12 | 中国海洋石油集团有限公司 | A kind of downhole ultrasonic oscillation release device and method |
| CN113250658A (en) * | 2021-06-01 | 2021-08-13 | 哈尔滨艾拓普科技有限公司 | Intelligent oil well production allocator |
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|---|---|---|---|---|
| CN2083628U (en) * | 1991-03-27 | 1991-08-28 | 玉门石油管理局石油沟油矿 | Energy-storage hydraulic pulse vibrator |
| CN2450377Y (en) * | 2000-10-09 | 2001-09-26 | 中国石油天然气股份有限公司 | Slide valve type hydraulic vibrator for oil well |
| CN2890322Y (en) * | 2006-03-10 | 2007-04-18 | 张琳 | Downhole low-frequency vibration generator |
| CN201090199Y (en) * | 2007-06-20 | 2008-07-23 | 中国石油天然气股份有限公司 | Two-stage three-section separate injection string capable of preventing water injection layer section from reverse-discharging and channeling |
| CN202090834U (en) * | 2011-06-22 | 2011-12-28 | 周福刚 | Hydrodynamic vibrator |
| US20130048274A1 (en) * | 2011-08-23 | 2013-02-28 | Halliburton Energy Services, Inc. | Variable frequency fluid oscillators for use with a subterranean well |
| CN204060541U (en) * | 2014-08-14 | 2014-12-31 | 伊伟 | The anti-tripping fastening devices of hydraulic sucker rod |
| CN205036361U (en) * | 2015-09-07 | 2016-02-17 | 中国石油化工股份有限公司 | Perforation seperated layer water injection integration tubular column |
-
2016
- 2016-05-13 CN CN201610322869.7A patent/CN107366528B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083628U (en) * | 1991-03-27 | 1991-08-28 | 玉门石油管理局石油沟油矿 | Energy-storage hydraulic pulse vibrator |
| CN2450377Y (en) * | 2000-10-09 | 2001-09-26 | 中国石油天然气股份有限公司 | Slide valve type hydraulic vibrator for oil well |
| CN2890322Y (en) * | 2006-03-10 | 2007-04-18 | 张琳 | Downhole low-frequency vibration generator |
| CN201090199Y (en) * | 2007-06-20 | 2008-07-23 | 中国石油天然气股份有限公司 | Two-stage three-section separate injection string capable of preventing water injection layer section from reverse-discharging and channeling |
| CN202090834U (en) * | 2011-06-22 | 2011-12-28 | 周福刚 | Hydrodynamic vibrator |
| US20130048274A1 (en) * | 2011-08-23 | 2013-02-28 | Halliburton Energy Services, Inc. | Variable frequency fluid oscillators for use with a subterranean well |
| CN204060541U (en) * | 2014-08-14 | 2014-12-31 | 伊伟 | The anti-tripping fastening devices of hydraulic sucker rod |
| CN205036361U (en) * | 2015-09-07 | 2016-02-17 | 中国石油化工股份有限公司 | Perforation seperated layer water injection integration tubular column |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458150A (en) * | 2018-11-16 | 2019-03-12 | 中国海洋石油集团有限公司 | A kind of downhole ultrasonic oscillation release device and method |
| CN113250658A (en) * | 2021-06-01 | 2021-08-13 | 哈尔滨艾拓普科技有限公司 | Intelligent oil well production allocator |
| CN113250658B (en) * | 2021-06-01 | 2022-11-04 | 哈尔滨艾拓普科技有限公司 | Intelligent oil well production allocator |
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| Publication number | Publication date |
|---|---|
| CN107366528B (en) | 2019-07-02 |
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