CN108775237A - The continuous ball-throwing apparatus of separate stratum fracfturing - Google Patents
The continuous ball-throwing apparatus of separate stratum fracfturing Download PDFInfo
- Publication number
- CN108775237A CN108775237A CN201810524670.1A CN201810524670A CN108775237A CN 108775237 A CN108775237 A CN 108775237A CN 201810524670 A CN201810524670 A CN 201810524670A CN 108775237 A CN108775237 A CN 108775237A
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- ball
- pitching
- rack
- gear
- throwing apparatus
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- 238000003860 storage Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000000007 visual effect 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
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)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of continuous ball-throwing apparatus of separate stratum fracfturing.The continuous ball-throwing apparatus of separate stratum fracfturing, including ontology, pitching gear and for drive pitching gear rotate driving device, pitching gear is equipped with storage ball, ontology is equipped with ball-dropping hole, the driving device includes the rack being adapted to the pitching gear, the pitching gear is that ratchet and/or the rack are connect with the pitching gear single-direction transmission, and the single stroke of the rack is corresponding with the pitching corner of pitching gear.The above-mentioned continuous ball-throwing apparatus of separate stratum fracfturing in the prior art using stepper motor compared with, advantageously reduce cost, convenient for control, debugging maintenance is convenient.
Description
Technical field
The present invention relates to a kind of continuous ball-throwing apparatus of separate stratum fracfturing.
Background technology
Low permeability oil and gas field, shale gas field production development in, since stratum is there are multiple oil reservoirs, each reservoir needs
Carry out one or more snippets exploitation, it is therefore desirable to which staged fracturing is constructed, and is beaten using multistage ball-throwing type staged fracturing construction technology
Open sliding sleeve.With the increase of pressure break series, need the number for the ball launched also more and more.Existing ball-throwing apparatus is mostly that single ball is thrown
Device is put, needs construction personnel to enter construction higher-pressure region and carries out switch valve and pitching operation to complete pressure break segmentation, therefore grasp
The personal safety for making personnel receives threat.In addition to this, pitching process is complicated, discontinuous and time-consuming and laborious, and due to this
A little ball-throwing apparatus cannot keep borehole pressure without sealing performance in launch process, can only be launched in no pressure.
Notification number is CN 105422072B, and the day for announcing is that the Chinese patent of 2017.12.26 discloses a kind of more ball pitchings
Device.The multi-ball ball injector includes ontology and is rotatably arranged on intrinsic pitching gear（Runner in i.e. above-mentioned patent document）,
Pitching gear is equipped with the storage ball along pitching gear circumferential array, and ontology is equipped with ball-dropping hole corresponding with storage ball, falling sphere
The pitching channel for being connected to fracture well head or pressure break high pressure line mouth is connected with below hole.Pitching gear is suitable with driving wheel
Match, driving wheel is connected with driving device, and driving device includes stepper motor and remote console, by remote console to stepping
The operating of motor is controlled, and then drives the rotation of pitching gear, and pitching gear is made to rotate a pitching corner successively（It is i.e. adjacent
The angle interval between ball is stored up, when a certain storage ball is overlapped with ball-dropping hole, one pitching corner of rotation will make and the storage ball
Another adjacent storage ball of hole is overlapped with ball-dropping hole）, complete the process of primary input pressure break ball.
But above-mentioned multi-ball ball injector needs stepper motor to be driven, cost is higher, and needs to stepper motor
Corner, starting point etc. are accurately controlled, and are debugged, are safeguarded inconvenience.
Invention content
The purpose of the present invention is to provide a kind of continuous ball-throwing apparatus of separate stratum fracfturing, to solve ball injector in the prior art
Existing problem of high cost, debugging maintenance is inconvenient.
To achieve the above object, the technical solution adopted by the present invention is：
The continuous ball-throwing apparatus of separate stratum fracfturing, including ontology, pitching gear and the driving device for driving pitching gear to rotate, throw
Spherical gear is equipped with storage ball, and ontology is equipped with ball-dropping hole, and the driving device includes the rack being adapted to the pitching gear,
The pitching gear is that ratchet and/or the rack are connect with the pitching gear single-direction transmission, the rack
Single stroke is corresponding with the pitching corner of pitching gear.
Using the technical solution, the single stroke of rack is corresponding with the pitching corner of pitching gear, and pitching gear is unidirectional
Gear and/or the rack are connect with the pitching gear single-direction transmission, can unidirectional drive pitching by drive rack
Gear rotation, realization storage ball and ball-dropping hole are corresponding in turn to, also, pitching gear rotational angle is the single stroke by rack
Ensure, and rack is rectilinear path, the rotational angle convenient for controlling pitching gear is consistent with pitching corner, and adopts in the prior art
It is compared with stepper motor, advantageously reduces cost, convenient for control, debugging maintenance is convenient.
As preferred technical solution：
In order to solve protection question, the driving device is fluid pressure drive device, is not required to electrical equipment, is more suitable for field work
Environment, while cost is relatively low.
In order to simplify structure, the fluid pressure drive device includes hydraulic drive cylinder, and hydraulic drive cylinder has positioned at rack
The hydraulic cavities of one end, hydraulic cavities are equipped with liquid in-out mouth, and the other end of the rack is equipped with the resetting spring for tooth bar resets.Liquid
Pressure chamber feed liquor the promotion to rack can be realized, after hydraulic cavities pressure release, resetting spring can drive rack return to initial position, no
It need to be respectively set oil inlet and oil outlet at hydraulic drive cylinder both ends, liquid in-out mouth may be either that feed liquor and can go out the single of liquid and open
Mouthful, or feed liquor goes out two openings that liquid is separated from each other, simple in structure, at low cost.
In order to ensure rack single stroke accuracy, the driving device further includes for the progress of the stroke of rack
The stroke only Stop structure of the Stop structure of limitation, rack is assured that, is designed, is debugged conveniently.
In order to advanced optimize structure, the resetting spring is equipped with spring base, the spring base backwards to one end of rack
With the newel being arranged for resetting spring, the newel has the block end face for coordinating with rack block, the gear
Only structure is made of the newel.Newel can play spring guiding role, while can play the limit to rack
Block acts on, compact-sized, advantageously reduces amount of parts.
In order to advanced optimize structure, the rack is arranged in the form of piston in hydraulic drive cylinder.The structure is into one
Step improves the integrated level of driving device, and space hold is few.
In order to improve reliability, pitching gear is ratchet, the rack with pitching gear is two-way engages, the pitching
Gear includes the gear ring and turntable of coaxial arrangement, and gear ring is connected with turntable single-direction transmission, and the storage ball is arranged on turntable.It should
Single-direction transmission structure technology is ripe, at low cost, good reliability.
It is equipped with pitching channel below the ball-dropping hole, two-stage or more is equipped in the lower section of Stop structure on the pitching channel
Shut-off valve, the accommodation space for accommodating pressure break ball is equipped between two-stage shut-off valve.Advantage is：In pitching pressure break
In the process, remain that one of shut-off valve is closed, can the operation under environment with pressure, prevent blowout, improve construction safety
Property.
In order to avoid oil gas is revealed, relief valve, Neng Gouti are equipped on the pitching channel between lower ball mouth and shut-off valve
High security.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment 1 of the continuous ball-throwing apparatus of separate stratum fracfturing of the present invention；
The schematic diagram overlooked under visual angle that Fig. 2 is Fig. 1.
Reference sign：1- ontologies, 2- pitching gears, 3- store up ball, 4- pressure break balls, 5- hydraulic drive cylinders, 6- hydraulic pressure
Chamber, 7- liquid in-out mouths, 8- racks, 9- ball-dropping holes, 10- resetting springs, 11- spring bases, 12- newels, 13- pitchings channel, 14-
Relief valve, 15- the first hydraulic brake plate valves, 16- the second hydraulic brake plate valves, 17- turntables, 18- gear rings.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment one of the continuous ball-throwing apparatus of separate stratum fracfturing is as shown in Figure 1 to Figure 2 in the present invention, which connects
Continuous ball-throwing apparatus includes pressure break ball tray assembly, pallet drive assembly and the pitching channel being arranged below pressure break ball tray assembly
13。
Pressure break ball tray assembly includes ontology 1, and pitching gear 2 is rotatably equipped in ontology 1, and pitching gear 2 is equipped with edge
The storage ball 3 of circumference uniform distribution, each diameter for storing up ball 3 are identical.Shell is equipped with ball-dropping hole 9 identical with storage 3 diameter of ball, throws
Ball channel 13 is connected to 9 lower section of ball-dropping hole.In the present embodiment, pitching gear 2 includes turntable 17 of the rolling assembling on ontology 1,
17 outer, coaxial of turntable assembles rack gear 18, and gear ring 18 is connected with 17 single-direction transmission of turntable, such as unidirectional by one-way clutch
It is sequentially connected, which is the prior art, is no longer described in detail herein.In other embodiments, other modes can also be used
The single-direction transmission for realizing gear ring 18 and turntable 17, for example, by using single direction ratchet.
Pallet drive assembly is the driving device for driving pitching gear 2 to rotate, including is adapted to the pitching gear 2
Rack 8, further include hydraulic drive cylinder 5, the rack 8 is arranged in the form of piston in hydraulic drive cylinder 5, tooth form thereon
Structure with pitching gear 2 is two-way engages, hydraulic drive cylinder 5 has a hydraulic cavities 6 positioned at one end of rack 8, hydraulic cavities 6 be equipped with into
Liquid outlet 7, the other end of the rack 8 are equipped with the resetting spring 10 resetted for rack 8.The driving device further includes being used for
To the Stop structure that the stroke of rack 8 is limited, in the present embodiment, the resetting spring 10 is set backwards to one end of rack 8
Have a spring base 11, the spring base 11 has a newel 12 being arranged for resetting spring 10, the newel 12 have for
The block end face of 8 block of rack cooperation, the Stop structure are made of the newel 12.Newel 12 could be provided as along axis
To the adjustable form in position, to adjust the rotational angle of pitching gear 2.In other embodiments, other forms can also be passed through
Realize the block of rack 8, such as setting and one end block cooperation of the rack 8 far from resetting spring 10 on hydraulic drive cylinder 5
Stop structure.
By above structure, the rack 8 in pallet drive assembly according to state shown in Fig. 2 slide from the top down when
It waits, by being intermeshed with the pitching gear 2 in 17 drive assembly of turntable, turntable 17 can be realized and be rotated counterclockwise, and be rotated every time
Angle be it is adjacent two store up ball 3 axle center between angle.That is, when a certain storage ball 3 is overlapped with ball-dropping hole 9, rotation one
A pitching corner will be such that another storage ball 3 adjacent with the storage ball 3 is overlapped with ball-dropping hole 9.When in 17 drive assembly of turntable
Rack 8 when slide from bottom to top, passing power, turntable 17 do not rotate between turntable 17 and gear ring 18.
Be equipped with two-stage shut-off valve in the lower section of Stop structure on the pitching channel 13 of the lower section of ball-dropping hole 9, two-stage shut-off valve it
Between be equipped with accommodation space for accommodating pressure break ball 4.In the present embodiment, the shut-off valve is hydraulic brake plate valve.The pitching is logical
Relief valve 14 is equipped on road 13 between lower ball mouth and shut-off valve.
When operation, the continuous ball-throwing apparatus of separate stratum fracfturing is connected directly between on fracture well head or pressure break high pressure line.Dividing
When continuous ball-throwing apparatus progress pitching operation is split in lamination, the first hydraulic brake plate valve 15 is opened, it is surplus between two hydraulic brake plate valves
Overbottom pressure power is discharged by relief valve 14.Then, hydraulic oil enters hydraulic cavities 6 from liquid in-out mouth 7, pushes rack 8 from the top down
Sliding, to drive 4 turntable 17 of pressure break ball to rotate counterclockwise to the upper of next storage 3 lower end of ball and ball-dropping hole 9 by gear ring 18
End overlaps, and pressure break ball 4 will be fallen under gravity on the second hydraulic brake plate valve 16.Later, the first hydraulic brake plate valve is closed
15, the second hydraulic brake plate valve 16 is opened, pressure break ball 4 enters in well head or pipeline, turns off the second hydraulic brake plate valve 16.Cast one
It is a（That is upper level sliding sleeve）When pressure break ball 4, only above-mentioned job step need to be repeated.Pass through the continuous ball-throwing apparatus of the separate stratum fracfturing
It can realize continuous pitching pressing crack construction, it is ensured that construction continuity advantageously ensures that pressing crack construction quality and effect, and can keep away
Exempt from worker and enter higher-pressure region, utmostly reduces security risk.
The embodiment two of the continuous ball-throwing apparatus of separate stratum fracfturing：The difference is that, driven in the present embodiment with embodiment one
Dynamic device includes the hydraulic cylinder being arranged in the one end of rack 8 far from resetting spring 10, and hydraulic cylinder includes cylinder body, piston and and piston
The telescopic rod of connection, telescopic rod are sequentially connected with rack 8.
The embodiment three of the continuous ball-throwing apparatus of separate stratum fracfturing：The difference is that, thrown in the present embodiment with embodiment one
The gear that spherical gear 2 is integrally formed is equivalent to and fixes a kind of gear ring 18 of embodiment and 17 one of turntable, but pitching tooth
It is single-direction transmission between the gear teeth and the gear teeth of rack 8 of wheel 2, which is real by the profile geometry of the rationally setting gear teeth
Existing, concrete structure is the prior art, is no longer described in detail herein, such as the flank profil side of the gear teeth is arranged to inclined side.
The example IV of the continuous ball-throwing apparatus of separate stratum fracfturing：With embodiment one the difference is that, tooth in the present embodiment
Item 8 is connect with 2 single-direction transmission of pitching gear, while pitching gear 2 is the ratchet in embodiment one.
The embodiment five of the continuous ball-throwing apparatus of separate stratum fracfturing：With embodiment one the difference is that, tooth in the present embodiment
Resetting spring 10 is not arranged for the one end of item 8 far from hydraulic cylinder, and rack 8 is free reciprocal rack, hydraulic cylinder extension band carry-over bar 8
It moves back and forth, the actuating length of rack 8 is determined by hydraulic cylinder completely.
The embodiment six of the continuous ball-throwing apparatus of separate stratum fracfturing：With any of the above-described embodiment the difference is that, this implementation
Example separate stratum fracfturing continuous ball-throwing apparatus does not include pitching channel 13, only includes the part in 13 or more pitching channel, can be with when use
In addition setting pitching channel 13.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not limited to this hair
It is bright, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still
The modification for being not required to make the creative labor can be carried out to the technical solution recorded in foregoing embodiments, or to which part
Technical characteristic carries out equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement
Deng should all be included in the protection scope of the present invention.
Claims (10)
1. the continuous ball-throwing apparatus of separate stratum fracfturing, including ontology, pitching gear and the driving device for driving pitching gear to rotate,
Pitching gear is equipped with storage ball, and ontology is equipped with ball-dropping hole, it is characterised in that：The driving device includes and the pitching tooth
The rack of adaptation is taken turns, the pitching gear is that ratchet and/or the rack connect with the pitching gear single-direction transmission
It connects, the single stroke of the rack is corresponding with the pitching corner of pitching gear.
2. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 1, it is characterised in that：The driving device is driven for hydraulic pressure
Dynamic device.
3. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 2, it is characterised in that：The fluid pressure drive device includes
There are the hydraulic cavities positioned at one end of rack, hydraulic cavities to be equipped with liquid in-out mouth for hydraulic drive cylinder, hydraulic drive cylinder, the rack
The other end is equipped with the resetting spring for tooth bar resets.
4. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 3, it is characterised in that：The driving device further includes using
In the Stop structure that the stroke to rack is limited.
5. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 4, it is characterised in that：The tooth backwards of the resetting spring
One end of item is equipped with spring base, and the spring base has the newel that is arranged for resetting spring, the newel have for
The block end face of rack block cooperation, the Stop structure are made of the newel.
6. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 3 or 4, it is characterised in that：The rack is with piston
Form is arranged in hydraulic drive cylinder.
7. the continuous ball-throwing apparatus of separate stratum fracfturing described in any one according to claims 1 to 4, it is characterised in that：Pitching tooth
Wheel is ratchet, the rack with pitching gear is two-way engages, the pitching gear includes the gear ring and turntable being coaxially disposed,
Gear ring is connected with turntable single-direction transmission, and the storage ball is arranged on turntable.
8. the continuous ball-throwing apparatus of separate stratum fracfturing described in any one according to claims 1 to 4, it is characterised in that：It is described to fall
It is equipped with pitching channel below ball, the shut-off valve of two-stage or more, two-stage is equipped in the lower section of Stop structure on the pitching channel
The accommodation space for accommodating pressure break ball is equipped between shut-off valve.
9. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 8, it is characterised in that：In lower ball on the pitching channel
Relief valve is equipped between mouth and shut-off valve.
10. the continuous ball-throwing apparatus of separate stratum fracfturing according to claim 8, it is characterised in that：The shut-off valve is hydraulic brake
Plate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524670.1A CN108775237A (en) | 2018-05-28 | 2018-05-28 | The continuous ball-throwing apparatus of separate stratum fracfturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524670.1A CN108775237A (en) | 2018-05-28 | 2018-05-28 | The continuous ball-throwing apparatus of separate stratum fracfturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775237A true CN108775237A (en) | 2018-11-09 |
Family
ID=64027849
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810524670.1A Pending CN108775237A (en) | 2018-05-28 | 2018-05-28 | The continuous ball-throwing apparatus of separate stratum fracfturing |
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| CN (1) | CN108775237A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538183A (en) * | 2018-12-12 | 2019-03-29 | 中国矿业大学 | A kind of solid rock drilling joint-cutting pressure break integrated device |
| CN109707361A (en) * | 2019-01-07 | 2019-05-03 | 中国石油大学(华东) | A kind of densification oil-gas reservoir rotating disc type well head automatic ball-throwing equipment |
| CN111852396A (en) * | 2020-08-31 | 2020-10-30 | 承德市开发区富泉石油机械有限公司 | Automatic ball-throwing device for perforation and fracturing continuous operation |
| CN112808041A (en) * | 2020-12-31 | 2021-05-18 | 王艳民 | Cosmetic preparation emulsification processing method |
| CN113074922A (en) * | 2020-01-03 | 2021-07-06 | 中国石油化工股份有限公司 | Temporary plugging agent performance evaluation test device for plugging perforation cluster |
| CN114198062A (en) * | 2021-12-15 | 2022-03-18 | 西南石油大学 | Multilayer combination formula bubble volleyball intelligence filling device |
| CN114562246A (en) * | 2022-03-21 | 2022-05-31 | 西南石油大学 | Continuous ball-throwing device with intelligent monitoring function for fracturing temporary plugging and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538183A (en) * | 2018-12-12 | 2019-03-29 | 中国矿业大学 | A kind of solid rock drilling joint-cutting pressure break integrated device |
| CN109538183B (en) * | 2018-12-12 | 2023-10-27 | 中国矿业大学 | Drilling, slitting and fracturing integrated device for hard rock |
| CN109707361A (en) * | 2019-01-07 | 2019-05-03 | 中国石油大学(华东) | A kind of densification oil-gas reservoir rotating disc type well head automatic ball-throwing equipment |
| CN113074922A (en) * | 2020-01-03 | 2021-07-06 | 中国石油化工股份有限公司 | Temporary plugging agent performance evaluation test device for plugging perforation cluster |
| CN111852396A (en) * | 2020-08-31 | 2020-10-30 | 承德市开发区富泉石油机械有限公司 | Automatic ball-throwing device for perforation and fracturing continuous operation |
| CN111852396B (en) * | 2020-08-31 | 2024-05-28 | 承德市开发区富泉石油机械有限公司 | Automatic ball throwing device for perforation fracturing continuous operation |
| CN112808041A (en) * | 2020-12-31 | 2021-05-18 | 王艳民 | Cosmetic preparation emulsification processing method |
| CN114198062A (en) * | 2021-12-15 | 2022-03-18 | 西南石油大学 | Multilayer combination formula bubble volleyball intelligence filling device |
| CN114198062B (en) * | 2021-12-15 | 2023-06-23 | 西南石油大学 | Multi-layer combined type intelligent filling device for foam volleyball |
| CN114562246A (en) * | 2022-03-21 | 2022-05-31 | 西南石油大学 | Continuous ball-throwing device with intelligent monitoring function for fracturing temporary plugging and method thereof |
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Application publication date: 20181109 |