CN204532323U - A kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof - Google Patents
A kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof Download PDFInfo
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- CN204532323U CN204532323U CN201520104071.6U CN201520104071U CN204532323U CN 204532323 U CN204532323 U CN 204532323U CN 201520104071 U CN201520104071 U CN 201520104071U CN 204532323 U CN204532323 U CN 204532323U
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Abstract
The utility model discloses a kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof, belong to oil gas drilling pressing crack construction equipment and construction method technical field; The ball storehouse of described pressing crack construction pitching comprises ball storehouse main pipeline, at least two warehouses are communicated with described ball storehouse main pipeline, ball storehouse main pipeline is provided with the reciprocally mobile handoff block arranged, handoff block is provided with spheroid passing hole, side is provided with derivation skew wall, the outlet conduit of each described warehouse is provided with spheroid limited diameter and passes through mechanism; Ball storehouse for pressing crack construction pitching of the present utility model is connected with ball storehouse main pipeline by two and above warehouse, the multiple warehouses achieving spheroid distribute or combination, improve the flexibility of spheroid filling, the spheroid limited diameter of the handoff block and warehouse outlet that are aided with ball storehouse main pipeline passes through mechanism, can effectively select single spheroid, substantially increase the handling and alternative of pitching process, be conducive to the automation and the serialization that realize the goal of pitching process.
Description
Technical field
The utility model relates to a kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof, belongs to oil gas drilling pressing crack construction equipment and construction method technical field.
Background technology
When different well section is constructed in large-scale segmentation fracturing, by the ball seat specification of sliding sleeve preset in well section, need successively drop into the sealed spheroid of dimension, under sealed spheroid effect, open the sliding sleeve of corresponding well section, then fracturing work construction is carried out to this well section.
For ensureing job safety during conventional pitching operation, first must stop infusion operation, closing production tree main switch, the pressure in pressure break main pipeline be let out to the greatest extent, plug valve can be opened and sealed spheroid is dropped in pressure break main pipeline, then cut-out tap valve.When opening production tree main switch, the pressure reduction existed in well and between pressure break main pipeline can enter well to steel ball and impact, and for eliminating this impact, before unlatching production tree main switch, also will suppress operation to pressure break main pipeline.And whole operating process needs staff to enter in high-voltage construction region carries out manual operation, there is larger potential safety hazard.
The conservative estimation of conventional single pitching process needs more than 10 minutes consuming time, and during Large Construction, main pressure number of devices is more, and for ensureing construction operation continuity to greatest extent, during usual pitching, all masters are installed with standby all maintenances idle running armed state.Enable by the construction of large-scale well staged fracturing that 12 () is main is installed with standby calculating: if pitching 6 times, 10 minutes consuming time of single pitching operation, the operation of whole work progress single-throw ball adds up 1 hours consuming time, 12 () main is installed with the thousands of unit of fuel cost needed for standby equal idle running 1 hour, too increases exhaust emissions amount aggravation atmosphere pollution.
In addition in existing pressing crack construction, need to inject enough displacement fluids the proppant (or acid solution) in well is pressed into target payzone completely before target payzone pressing crack construction terminates, the pitching operation of next target payzone just can be carried out: spheroid enters in well by conventional pitching operating type after proppant (or acid solution) is pressed into target payzone completely, release liquid carries spheroid, and by infusion, spheroid is delivered to target payzone.This operator scheme adds construction liquid consumption, also virtually adds construction running cost and later stage cost of sewage disposal.
Due to the artificial pitching of traditional employing, pitching operation is generally manually carry out selecting and confirming of sphere diameter, carries out pitching again, if indivedual spheroid is undesirable in pitching process after spheroid being put into successively ball storehouse, the screening of spheroid cannot be realized, greatly reduce the flexibility of pitching.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned Problems existing, a kind of ball storehouse can carrying out spheroid screening in pressing crack construction pitching process is provided, improve the flexibility of pitching, the utility model also provides a kind of ball-throwing apparatus of pressing crack construction in addition, effectively can overcome the shortcoming of existing pitching process, improve pitching efficiency and reduce pitching cost, after particularly ball storehouse and ball-throwing apparatus combine, being conducive to the automation realizing pitching process.
The technical solution adopted in the utility model is as follows:
A kind of ball storehouse for pressing crack construction pitching, comprise ball storehouse main pipeline, at least two warehouses are communicated with described ball storehouse main pipeline, described ball storehouse main pipeline is provided with the reciprocally mobile handoff block arranged, described handoff block is provided with spheroid passing hole, the side of handoff block is provided with derivation skew wall, the outlet conduit of each described warehouse is provided with spheroid limited diameter and passes through mechanism.
Further, described spheroid limited diameter comprises pin and pin hoisting mechanism by mechanism, and described pin is arranged in the outlet conduit of warehouse, and described pin hoisting mechanism is connected with the outer end of pin.
A kind of pressing crack construction ball-throwing apparatus of the present utility model, comprises described ball storehouse.
Further, described pressing crack construction ball-throwing apparatus comprises Master cylinder body and piston push rod, described piston push rod is arranged in Master cylinder body, and can move along Master cylinder body inner chamber bidirectional reciprocating, be sealed and matched between described Master cylinder body and piston push rod and Master cylinder body inner chamber be divided into independently pitching chamber and pressure compensated cavity; Master cylinder body end, place, described pitching chamber is provided with valve I, and pitching chamber is also provided with goal pipeline, and described goal pipeline is provided with valve II; Described pitching chamber is communicated with by connecting pipe with between pressure compensated cavity, described connecting pipe is provided with valve III; Described pressure compensated cavity is provided with relief pipeline I, and described relief pipeline I is provided with valve IV; The elastic mechanism resetted for piston push rod is provided with in described Master cylinder body; Described ball storehouse main pipeline is connected with goal pipeline.
Further, described pitching chamber is provided with the pressure guiding pipe for being connected with pressure break main pipeline, described pressure guiding pipe is provided with valve V.
Further, described elastic mechanism is Compress Spring, and described Compress Spring is arranged in pressure compensated cavity.
Further, be provided with the guide rod along Master cylinder body axis in described pressure compensated cavity, piston push rod offers the guide groove with guide rod adaptation vertically, and piston push rod is assemblied in by its guide groove on the guide rod in Master cylinder body.
Further, described pitching chamber is provided with relief pipeline II, and described relief pipeline II is provided with valve VI.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, the described ball storehouse for pressing crack construction pitching, be connected with ball storehouse main pipeline by two and above warehouse, achieve distributing or combination at multiple warehouse of spheroid, improve the flexibility of spheroid filling, the spheroid limited diameter of the handoff block and warehouse outlet that are aided with ball storehouse main pipeline passes through mechanism, effectively can select single spheroid, substantially increase the handling and alternative of pitching process, be conducive to the automation and the serialization that realize the goal of pitching process;
2, described pressing crack construction ball-throwing apparatus realizes pitching by the process pressure of pressing crack construction being introduced Master cylinder body, cylinder interior pressure balances, pitching cost is effectively reduced compared to traditional ball-throwing apparatus, shorten the pitching cycle, and there is the basis realizing pitching process automation, operating personnel can away from high-pressure area operated from a distance, ensure that the safety of pitching process, this device also has miniaturization and the advantage of running cost degradation in addition, greatly reduces transport and the installation cost of construction;
3, based on this pressing crack construction ball-throwing apparatus and pitching method design, achieve pipe pressurized, pitching under the condition of sequential production, this will make traditional pitching operation be changed: by calculating the piping volume between target payzone and next target payzone, the displacement fluid calculating volume can be injected before target payzone pressing crack construction terminates, pressing crack construction ball-throwing apparatus of the present invention and pitching method can be adopted to drop in well by spheroid after the displacement fluid calculating volume has injected, with release liquid, spheroid is delivered to next target payzone again, and then start the pressing crack construction of next target payzone.This greatly saves the consumption cubical content of pipeline (between next target payzone and the ground) of displacement fluid compared to traditional pitching operation, and saves pitching operating time and equipment operation cost;
4, after described ball storehouse and ball-throwing apparatus combinationally use, reduce cycle and the cost of the operation of whole pitching, and the automation of pitching overall process can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation A of the utility model for the ball storehouse of pressing crack construction pitching;
Fig. 2 is the structural representation B of the utility model for the ball storehouse of pressing crack construction pitching;
Fig. 3 is ball storehouse of the present utility model and pressing crack construction ball-throwing apparatus combining structure schematic diagram;
Fig. 4 is pressing crack construction ball-throwing apparatus operating process figure A of the present utility model;
Fig. 5 is pressing crack construction ball-throwing apparatus operating process figure B of the present utility model;
Fig. 6 is pressing crack construction ball-throwing apparatus operating process figure C of the present utility model;
Fig. 7 is pressing crack construction ball-throwing apparatus operating process figure D of the present utility model;
Fig. 8 is pressing crack construction ball-throwing apparatus operating process figure E of the present utility model.
Mark in figure: 1-ball storehouse main pipeline, 2-handoff block, 201-spheroid passing hole, 202-derives skew wall, 203-handoff block operating mechanism, 3-warehouse, 401-pin, 402-pin hoisting mechanism, 5-Master cylinder body, 501-valve I, 502-guide groove, 503-guide rod, 504-Compress Spring, 505-valve III, 506-valve V, 507-valve IV, 6-piston push rod, 7-pitching chamber, 8-pressure compensated cavity, 9-goal pipeline, 901-valve II, 902-valve VI, 10-spheroid, 11-pressure break main pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
Ball storehouse for pressing crack construction pitching of the present utility model, its structure as shown in Figure 1, comprise ball storehouse main pipeline 1, at least two warehouses 3 are communicated with described ball storehouse main pipeline 1, described ball storehouse main pipeline 1 is provided with the reciprocally mobile handoff block 2 arranged, described handoff block 2 is provided with spheroid passing hole 201, and the side of handoff block 2 is provided with derives skew wall 202, the outlet conduit of each described warehouse 3 is provided with spheroid limited diameter and passes through mechanism.
In the present embodiment, the aperture of described spheroid passing hole 201 is consistent with ball storehouse main pipeline 1 internal diameter, passing through for spheroid, the derivation skew wall 202 of handoff block 2 is derived outside ball storehouse main pipeline 1 for the spheroid required falling short of specifications, described handoff block 2 reciprocally movement is arranged at the screening for spheroid on ball storehouse main pipeline 1, handoff block 2 realizes moving back and forth by connected handoff block operating mechanism 203, the state that its spheroid passes through as shown in Figure 1, state outside spheroid screening derivation ball storehouse main pipeline 1 as shown in Figure 2, described handoff block operating mechanism 203 can be hydraulic actuating mechanism, the one of pneumatic actuator or electric operator.
In the utility model, spheroid limited diameter refers to the mechanism of the spheroid being defined through certain diameter by mechanism, as fracturing operation needs the steel ball of 40mm, then spheroid limited diameter is 40mm by the permission of mechanism by diameter, making sequentially to be arranged in warehouse 3 interior diameter is by size that 40mm spheroid can pass through mechanism by limited diameter, the spheroid being greater than 40mm then cannot pass through, in the present embodiment, described spheroid limited diameter comprises pin 401 by mechanism and pin hoisting mechanism 402 forms, described pin 401 is arranged in the outlet conduit of warehouse 3, pin 401 is through tube wall, described pin hoisting mechanism 402 is connected with the outer end of pin 401, pin hoisting mechanism 402 can be hydraulic actuating mechanism, the one of pneumatic actuator or electric operator, realize the lifting to pin 401 or decline, to regulate the distance between pin 401 lower end and tube wall.
In the present embodiment, described ball storehouse main pipeline 1 and warehouse 3 are vertically arranged, and the outlet conduit of warehouse 3 is in tilted layout, and is beneficial to selection and the whereabouts of spheroid.
Pressing crack construction ball-throwing apparatus of the present utility model, its structure as shown in Figure 3, comprise Master cylinder body 5 and piston push rod 6, described piston push rod 6 is arranged in Master cylinder body 5, and can move along Master cylinder body 5 inner chamber bidirectional reciprocating, be sealed and matched between described Master cylinder body 5 and piston push rod 6 and Master cylinder body 5 inner chamber be divided into independently pitching chamber 7 and pressure compensated cavity 8; Master cylinder body 5 end, place, described pitching chamber 7 is provided with valve I 501, and pitching chamber 7 is also provided with goal pipeline 9, and described goal pipeline 9 is provided with valve II 901; Described pitching chamber 7 is communicated with by connecting pipe with between pressure compensated cavity 8, described connecting pipe is provided with valve III 505; Described pressure compensated cavity 8 is provided with relief pipeline I, and described relief pipeline I is provided with valve IV 507; The elastic mechanism resetted for piston push rod 6 is provided with in described Master cylinder body 5; Described ball storehouse main pipeline 1 is connected with goal pipeline 9.
Described elastic mechanism can be installed in pitching chamber 7 or pressure compensated cavity 8, elastic mechanism can be existing form or the structure design such as elasticity of compression mechanism or tensile elasticity mechanism, its object is to store pressure break main pipeline 11 fluid pressure, and realize pitching by earth pressure release.
The end, pitching chamber 7 of described Master cylinder body 5 is that pipe joint is for being connected with pressure break main pipeline 11, described pressure compensated cavity 8 end face is closed, its main operational principle of pressing crack construction ball-throwing apparatus is as follows: fluid pressure in pressure break main pipeline is introduced (by valve I 501 or separately establish impulse pipeline) pitching chamber 7, piston push rod 6 advances to pressure compensated cavity 8 and makes elastic mechanism generation elastic deformation under pressure, valve III 505 is for the pressure balance of pitching chamber 7 and pressure compensated cavity 8, two chamber pressure equilibrium process Elastic mechanism release resilient force spheroids enter pressure break main pipeline.
In the present embodiment, described Master cylinder body 5 and goal pipeline 9 are arranged with axial at right angle setting, the vertical distance of valve II 901 distance piston push rod 6 outer wall of goal pipeline 9 with the maximum gauge of pitching for Reference Design, the interim spatial accommodation after being entered by valve II 901 to provide spheroid.The external diameter of piston push rod 6 is less than the internal diameter in Master cylinder body 5 pitching chamber 7 in the present embodiment in addition, and pressure can be discharged smoothly by the pipe joint of connecting pipe.
In the present embodiment, described pitching chamber 7 is provided with the pressure guiding pipe for being connected with pressure break main pipeline, described pressure guiding pipe is provided with valve V 506, pressure for being constructed by pressure in main pipeline introduces pitching chamber 7, compared to valve I 501 impulse, have safe and handling strong advantage, can also effectively avoid in addition in valve I 501 opening process may to the damage of piston push rod 6 end face and valve I 501 spool.
In the present embodiment, described elastic mechanism is Compress Spring 504, described Compress Spring 504 is arranged in pressure compensated cavity 8, the navigation designing for piston push rod 6 motion guide is also comprised: in described pressure compensated cavity 8, be provided with the guide rod 503 along Master cylinder body 5 axis in pressure compensated cavity 8, piston push rod 6 offers the guide groove 502 with guide rod 503 adaptation vertically, and piston push rod 6 is assemblied in by its guide groove 502 on the guide rod 503 in Master cylinder body 5.Fig. 3 is the apparatus structure schematic diagram after Compress Spring 504 compresses by piston push rod 6.
The pressing crack construction ball-throwing apparatus of the present embodiment, described pitching chamber 7 is provided with relief pipeline II, and described relief pipeline II is provided with valve VI 902, and described relief pipeline II is arranged on goal pipeline 9.
In the present embodiment, described valve I 501 and valve II 901 are stopcock structure, and driven by pneumatic drive unit or electric drive unit, other valve types can be selected according to operating mode.
The using method in the utility model ball storehouse: be positioned in ball storehouse 3 according to order of bowling by steel ball spheroid, the spheroid between each ball storehouse 3 is arranged by combination or alternative mode.The different pressure break stages provides different spheroids for ball-throwing apparatus, when certain spheroid is not suitable for the specification required by the construction section section of place, then send ball storehouse main pipeline 1 by handoff block 2, select suitable spheroid to send into pressing crack construction ball-throwing apparatus by the spheroid limited diameter on different warehouse 3 by mechanism.
The pitching method of the utility model pressing crack construction ball-throwing apparatus, comprises the steps:
A, by-pass valve control I 501, valve II 901 and valve III 505 is closed condition, and valve IV 507 is opening, and spheroid 10 is put into goal pipeline 9;
B, Open valve II 901, make spheroid 10 enter the goal pipeline 9 place section in pitching chamber 7, and valve-off II 901, as shown in Figure 4;
C, by pressure break main pipeline fluid introduce pitching chamber 7, piston push rod 6 enters to pressure compensated cavity 8 thruster and makes elastic mechanism generation elastic deformation under the effect of fluid pressure, spheroid 10 enters the Master cylinder body 5 place section in pitching chamber 7, and complete Open valve I 501, as shown in Figure 5;
D, valve-off IV 507, Open valve III 505, fluid enters pressure compensated cavity 8 by connecting pipe and makes pressure balance between pitching chamber 7 and pressure compensated cavity 8, makes piston push rod 6 enter to pitching chamber 7 thruster under the effect of elastic mechanism, and spheroid 10 is pushed in pressure break main pipeline, as shown in Figure 6;
E, valve-off III 505, the pressure in pressure compensated cavity 8 gushes by Open valve IV 507, and piston push rod 6 enters to the thruster of pressure compensated cavity 8 and makes elastic mechanism generation elastic deformation under the effect of pitching chamber 7 fluid pressure, as shown in Figure 7;
After f, piston push rod 6 are advancing to the position, pitching chamber 7 and pressure break main pipeline cut off by valve-off I 501;
G, gushed by the pressure in pitching chamber 7, piston push rod 6 makes piston push rod 6 enter to pitching chamber 7 thruster, reset under the effect of elastic mechanism, as shown in Figure 8, completes a pitching process.
The pitching method of described pressing crack construction ball-throwing apparatus, further, described pitching chamber 7 is provided with the pressure guiding pipe for being connected with pressure break main pipeline, described pressure guiding pipe is provided with valve V 506, in described step c, the fluid in pressure break main pipeline is introduced pitching chamber 7 and be operating as: the fluid in pressure break main pipeline is introduced pitching chamber 7 by Open valve V 506.
The pitching method of described pressing crack construction ball-throwing apparatus, further, described pitching chamber 7 is provided with relief pipeline II, and described relief pipeline II is provided with valve VI 902, and in described step g, pitching chamber 7 is carried out pressure by Open valve VI 902 and gushed.
Pressing crack construction ball-throwing apparatus of the present utility model, the power using the pressure in pressure break main pipeline as ball-throwing apparatus work, make use of the low characteristic of fracturing liquid compressibility to complete the whole course of work simultaneously.Adopt piston push rod ball to be advanced the schematic design of pressure break main pipeline, effectively solve and cause spheroid naturally to fall into the problem of difficulty because of pressurised fluid stream body flowing in pressure break main pipeline.
Ball storehouse for pressing crack construction pitching of the present utility model and pressing crack construction ball-throwing apparatus, have following significant advantage:
1, the described ball storehouse for pressing crack construction pitching, be connected with ball storehouse main pipeline by two and above warehouse, the multiple warehouses achieving spheroid distribute or combination, improve the flexibility of spheroid filling, the spheroid limited diameter of the handoff block and warehouse outlet that are aided with ball storehouse main pipeline passes through mechanism, effectively can select single spheroid, substantially increase the handling and alternative of pitching process, be conducive to the automation and the serialization that realize the goal of pitching process;
2, described pressing crack construction ball-throwing apparatus realizes pitching by the process pressure of pressing crack construction being introduced Master cylinder body, cylinder interior pressure balances, pitching cost is effectively reduced compared to traditional ball-throwing apparatus, shorten the pitching cycle, and there is the basis realizing pitching process automation, operating personnel can away from high-pressure area operated from a distance, ensure that the safety of pitching process, this device also has miniaturization and the advantage of running cost degradation in addition, greatly reduces transport and the installation cost of construction;
3, based on this pressing crack construction ball-throwing apparatus and pitching method design, achieve pipe pressurized, pitching under the condition of sequential production, this will make traditional pitching operation be changed: by calculating the piping volume between target payzone and next target payzone, the displacement fluid calculating volume can be injected before target payzone pressing crack construction terminates, pressing crack construction ball-throwing apparatus of the present invention and pitching method can be adopted to drop in well by spheroid after the displacement fluid calculating volume has injected, with release liquid, spheroid is delivered to next target payzone again, and then start the pressing crack construction of next target payzone.This greatly saves the consumption cubical content of pipeline (between next target payzone and the ground) of displacement fluid compared to traditional pitching operation, and saves pitching operating time and equipment operation cost;
4, after described ball storehouse and ball-throwing apparatus combinationally use, reduce cycle and the cost of the operation of whole pitching, and the automation of pitching overall process can be realized.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. the ball storehouse for pressing crack construction pitching, it is characterized in that: comprise ball storehouse main pipeline (1), at least two warehouses (3) are communicated with described ball storehouse main pipeline (1), described ball storehouse main pipeline (1) is provided with the reciprocally mobile handoff block (2) arranged, described handoff block (2) is provided with spheroid passing hole (201), the side of handoff block (2) is provided with derives skew wall (202), the outlet conduit of each described warehouse (3) is provided with spheroid limited diameter and passes through mechanism.
2. as claimed in claim 1 for the ball storehouse of pressing crack construction pitching, it is characterized in that: described spheroid limited diameter comprises pin (401) and pin hoisting mechanism (402) by mechanism, described pin (401) is arranged in the outlet conduit of warehouse (3), and described pin hoisting mechanism (402) is connected with the outer end of pin (401).
3. a pressing crack construction ball-throwing apparatus, is characterized in that: comprise ball storehouse as claimed in claim 1 or 2.
4. pressing crack construction ball-throwing apparatus as claimed in claim 3, it is characterized in that: described pressing crack construction ball-throwing apparatus comprises Master cylinder body (5) and piston push rod (6), described piston push rod (6) is arranged in Master cylinder body (5), and can move along Master cylinder body (5) inner chamber bidirectional reciprocating, be sealed and matched between described Master cylinder body (5) and piston push rod (6) and Master cylinder body (5) inner chamber be divided into independently pitching chamber (7) and pressure compensated cavity (8); Master cylinder body (5) end, described pitching chamber (7) place is provided with valve I (501), and pitching chamber (7) are also provided with goal pipeline (9), and described goal pipeline (9) is provided with valve II (901); Described pitching chamber (7) is communicated with by connecting pipe with between pressure compensated cavity (8), described connecting pipe is provided with valve III (505); Described pressure compensated cavity (8) is provided with relief pipeline I, described relief pipeline I is provided with valve IV (507); The elastic mechanism resetted for piston push rod (6) is provided with in described Master cylinder body (5); Described ball storehouse main pipeline (1) is connected with goal pipeline (9).
5. pressing crack construction ball-throwing apparatus as claimed in claim 4, is characterized in that: described pitching chamber (7) is provided with the pressure guiding pipe for being connected with pressure break main pipeline, described pressure guiding pipe is provided with valve V (506).
6. pressing crack construction ball-throwing apparatus as claimed in claim 4, is characterized in that: described elastic mechanism is Compress Spring (504), and described Compress Spring (504) is arranged in pressure compensated cavity (8).
7. pressing crack construction ball-throwing apparatus as claimed in claim 4, it is characterized in that: be provided with along the axial guide rod (503) of Master cylinder body (5) in described pressure compensated cavity (8), piston push rod (6) offers the guide groove (502) adaptive with guide rod (503) vertically, and piston push rod (6) is assemblied in by its guide groove (502) on the guide rod (503) in Master cylinder body (5).
8. pressing crack construction ball-throwing apparatus as claimed in claim 4, is characterized in that: described pitching chamber (7) is provided with relief pipeline II, described relief pipeline II is provided with valve VI (902).
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| CN201520104071.6U CN204532323U (en) | 2015-02-13 | 2015-02-13 | A kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof |
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| CN201520104071.6U CN204532323U (en) | 2015-02-13 | 2015-02-13 | A kind of ball storehouse for pressing crack construction pitching and ball-throwing apparatus thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194051A (en) * | 2018-03-22 | 2018-06-22 | 中国海洋石油集团有限公司 | A kind of intelligent control ball injector and hydraulic control valve |
| CN114961634A (en) * | 2022-06-12 | 2022-08-30 | 魏领研 | Oil well leaking stoppage ball injector |
-
2015
- 2015-02-13 CN CN201520104071.6U patent/CN204532323U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194051A (en) * | 2018-03-22 | 2018-06-22 | 中国海洋石油集团有限公司 | A kind of intelligent control ball injector and hydraulic control valve |
| CN108194051B (en) * | 2018-03-22 | 2024-02-09 | 中国海洋石油集团有限公司 | Intelligent control ball injector and hydraulic control valve |
| CN114961634A (en) * | 2022-06-12 | 2022-08-30 | 魏领研 | Oil well leaking stoppage ball injector |
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Effective date of registration: 20160126 Address after: 100101 Beijing City, Chaoyang District Hui Street No. six twelfth floor Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: SINOPEC XINAN OILFIELD SERVICE CORPORATION Address before: 618000, No. 216, Yong Cheng North Road, Ting Ting Road, Deyang, Sichuan 2, building 3, No. 5, building 2, No. 10, Shifang Patentee before: Li Chaorong Patentee before: Deng Huaguo |
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Effective date of registration: 20210610 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Southwest Petroleum Engineering Co.,Ltd. Address before: 100101 twelfth floor, No. 16, Huixin East Street, Chaoyang District, Beijing Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: Sinopec Southwest Petroleum Engineering Co.,Ltd. |