CN105422072B - A kind of multi-ball ball injector - Google Patents
A kind of multi-ball ball injector Download PDFInfo
- Publication number
- CN105422072B CN105422072B CN201510910461.7A CN201510910461A CN105422072B CN 105422072 B CN105422072 B CN 105422072B CN 201510910461 A CN201510910461 A CN 201510910461A CN 105422072 B CN105422072 B CN 105422072B
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- China
- Prior art keywords
- ball
- runner
- driving wheel
- stepper motor
- drive shaft
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
Abstract
The invention discloses a kind of multi-ball ball injector, is mainly made up of body, runner, upper lid, dress spherical cap plate, top connection, drive shaft, driving wheel, balancing weight, control line, remote console, stepper motor and lower contact, wherein：The body is provided with an annular housing and a circular cavity, places runner and driving wheel respectively；The upper lid is arranged on body, and one is provided with upper lid with storing up the isodiametric through hole of ball on runner；The runner and driving wheel are involute gear, and two modules and pressure angle are equal, and N number of cylindrical hole is provided with runner（It is preferable for control ball injector volume and weight, N≤12）, for storing setting ball, 1 setting ball of N can be stored, another cylindrical hole is used for and pitching passage UNICOM；The setting ball is by order from big to small according in the storage ball being positioned over clockwise on runner；Solve complicated in the presence of prior art, once put into setting ball number defect more rambunctious.
Description
Technical field
The present invention relates to oilfield prospecting developing equipment technical field, and in particular to a kind of multi-ball ball injector, for even
Continuous multistage separate stratum fracfturing construction.
Background technology
Ball injector is indispensable equipment in continuous multi-stage separate stratum fracfturing construction, by sequentially being thrown from small to large in well head
Enter the setting ball of different-diameter to open the sliding sleeves or downhole tool at different levels on working string successively, open fracturing work and lead to
Road.
At present, sliding sleeve is opened during live well fracturing operation and mainly fills ball pitching side respectively using multiple plug valves
Formula, pitching quantity is few, equipment bulky complex, pipeline connection trouble, cumbersome, difficult in maintenance；In work progress, in order to throw
Ball, operating personnel need, in higher-pressure region operation, security risk be present.With the continuous development of multistage classification fracturing tool, segmentation
Hop count by it is initial risen to less than 10 grades it is 20 multistage even 30 grades, using in general pitching method will it is more cumbersome,
Complexity, security risk are also higher.Therefore, the stuff for installing multiple plug valves has been difficult that the pitching completed in work progress is made
Industry, have impact on pressing crack construction efficiency, security risk also more and more higher.
Publication No. 103628854A, publication date disclose a kind of complete close for the Chinese patent literature on March 12nd, 2014
Close high-voltage resistant magnetomotive multi-ball injector, it include housing, union plug, set stepper motor, strong magnetic power rotor, leading screw, from
Turn son, choose shuttles rod and two dress ball cylinders, the housing lower end by lower contact be arranged on fracture well head on, the housing cavity
The positive stop key of two protrusions is arranged with wall, has been vertically formed respectively on the rod outer wall of choosing shuttles spacing corresponding to two permissions
The elongated groove of key insertion, the upper end open of two dress ball cylinders are encapsulated by a dress ball cylinder end cap respectively, and lower ending opening is equal
Blocked by the rod of choosing shuttles.Rank that the equipment is pressure-resistant is high, and sealing reliability is strong, not termination of pumping during operation, can be achieved with pressure continuous
Pitching, online pitching quantity is more and simple to operate, and pitching reliability is high；The precision chosen shuttles can also be improved, in addition equipment body
Product is small, carries, be easy for installation, it is possible to achieve far distance controlled, away from higher-pressure region, safe operation.
But the multi-ball ball injector using above-mentioned patent document as representative, its structure are complex.And both sides are in tilted layout and fill ball
The structure type of cylinder, chosen shuttles by rod of choosing shuttles during work, it is easy to the feelings that the setting ball in the dress ball cylinder of both sides is put into simultaneously occur
Condition.
The content of the invention
It is contemplated that the defects of present in above-mentioned prior art and deficiency, there is provided a kind of multi-ball ball injector, use
The present invention, it can realize and sequentially automatically engage the setting ball of different-diameter from small to large in well head to open successively on working string
Sliding sleeves or downhole tool at different levels, fracturing work passage is opened, and once only puts into a ball, in the presence of solving prior art
It is complicated, once put into setting ball number defect more rambunctious.
The present invention is realized by using following technical proposals：
A kind of multi-ball ball injector, it is characterised in that：Mainly by body, runner, upper lid, dress spherical cap plate, top connection, driving
Axle, driving wheel, balancing weight, control line, remote console, stepper motor and lower contact composition, wherein：
The body is provided with an annular housing and a circular cavity, places runner and driving wheel respectively；On described
Lid is arranged on body, and one is provided with upper lid with storing up the isodiametric through hole of ball on runner；
The runner and driving wheel are involute gear, and two modules and pressure angle are equal, and N number of circle is provided with runner
Cylindricality through hole（It is preferable for control ball injector volume and weight, N≤12）, for storing setting ball, N-1 setting ball can be stored,
Another cylindrical hole is used for and pitching passage UNICOM；The setting ball is by order from big to small according to putting clockwise
It is placed in the storage ball on runner；
The top connection and lower contact are connected on lid and body, for connecting liquid inlet and outlet oil pipe；
The drive shaft lower end is connected with stepper motor, and drive shaft upper end is connected through body with driving wheel；The stepping
Rotation setting number of turns during motor each pitching, passes through drive shaft and driving wheel drives runner to rotate set angle (360 °/N)；
The balancing weight is arranged on the right side of body, for balancing top connection, lower contact left and right sides weight, keeps center of gravity
On upper and lower joint axis；
The control line is used to connect stepper motor and remote console, passes through operating of the remote console to stepper motor
It is controlled.
The runner and driving wheel are involute gear, and two modules and pressure angle are equal, and N number of circle is provided with runner
Cylindricality through hole, for storing setting ball, N-1 setting ball can be stored, another cylindrical hole is used to join with pitching passage
It is logical.
The setting ball is by order from big to small according in the storage ball being positioned over clockwise on runner.
The remote console includes PLC control circuits, power supply and guidance panel；The guidance panel is provided with aobvious
Display screen, pitching button, power switch and indicator lamp.
The upper lid is arranged on body, has ring structure to realize sealing between body；
Between top connection and upper lid, there is sealing group sealing between lower contact and body.
There is sealing ring sealing between drive shaft and body.
The dress spherical cap plate is arranged on lid, for sealing the dress ball through hole on upper lid.
The rotate counterclockwise during stepper motor each pitching（The direction of Fig. 2 driving wheels 7）Set the number of turns, by drive shaft and
Driving wheel drives runner to be rotated clockwise 360 °/N.
Compared with prior art, what the present invention was reached has the beneficial effect that：
1st, the present invention is by controlling the rotation driving runner of stepper motor to rotate set angle (360 °/N) every time, so that will
Ball input operation path in runner storage ball, whole process are automatically performed in closing space.With Publication No.
103628854A patent documents are compared, from being the structure type with runner and driving wheel, therefore can be each by stepper motor
Some setting ball input in storage ball on accurate control runner, and can realize that order is put into from small to large.Also just can be real
Present well head sequentially automatically engage the setting ball of different-diameter from small to large open successively sliding sleeves at different levels on working string or
Person's downhole tool, fracturing work passage is opened, and once only puts into a ball, solved the structure in the presence of prior art and answer
It is miscellaneous, once put into setting ball number defect more rambunctious.
2nd, the present invention can realize not termination of pumping automatic ball-throwing successively, pitching efficiency high, and pass through tele-control system control
Pitching process processed, operating personnel are without in higher-pressure region operation, safe operation.
3rd, need to carry out when devoting oneself to work of a greater number ball when live, more series connection of ball injector of the present invention can be made
With, you can reach pitching requirement during more multi-staging.
Brief description of the drawings
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is Fig. 1 sectional view.
In figure mark for：1st, body, 2, runner, 3, upper lid, 4, dress spherical cap plate, 5, top connection, 6, drive shaft, 7, driving
Wheel, 8, balancing weight, 9, control line, 10, remote console, 11, stepper motor, 12, lower contact, 13, setting ball, 14, correspond to
The storage ball of pitching passage, 15, corresponding to dress spherical cap plate storage ball.
Embodiment
Embodiment 1
As the preferred forms of the present invention, it discloses a kind of multi-ball ball injector, its mainly by body 1, runner 2,
Upper lid 3, dress spherical cap plate 4, top connection 5, drive shaft 6, driving wheel 7, balancing weight 8, control line 9, remote console 10, stepper motor
11 and lower contact 12 form.
In the present embodiment, the body 1 is provided with an annular housing and a circular cavity, places the He of runner 2 respectively
Driving wheel 7；The upper lid 3 is arranged on body 1, has ring structure to realize sealing between body 1, one is provided with upper lid 3
The isodiametric through hole of ball is stored up on individual and runner 2；The dress spherical cap plate 4 is arranged on lid 3, for sealing the dress on upper lid 3
Ball through hole.
In the present embodiment, the runner 2 is involute gear with driving wheel 7, and two modules and pressure angle difference are equal,
Correct engagement and can continuously it be driven；12 diameter 100mm cylindrical hole is provided with runner 2, is set for storing
Ball 13, can store the setting ball 13 that 11 diameters are less than 98mm, and another through hole is used for and pitching passage UNICOM.The seat
Blocking 13 is by order from big to small according in the storage ball being positioned over clockwise on runner 2.
In the present embodiment, the top connection 5 and lower contact 12 are connected on lid 3 and body 1, for connect into,
Go out liquid oil pipe.There is sealing group sealing between top connection 5 and upper lid 3, between lower contact 12 and body 1.
In the present embodiment, the lower end of drive shaft 6 is connected with stepper motor 11, and the upper end of drive shaft 6 is through body 1 with driving
The connection of wheel 7.There is sealing ring sealing between drive shaft 6 and body 1.Rotate counterclockwise during 11 each pitching of stepper motor（Fig. 2
The direction of driving wheel 7）The number of turns is set, drives runner 2 to be rotated clockwise 30 ° by drive shaft 6 and driving wheel 7.
In the present embodiment, the balancing weight 8 is arranged at the right side of body 1, for balancing top connection 5, lower contact 12 or so two
The amount of stressing, center of gravity is set to be maintained on upper and lower joint axis.
In the present embodiment, the control line 9 is used to connect stepper motor 11 and remote console 10, passes through remote console
The operating of 10 pairs of stepper motors 11 is controlled.
In the present embodiment, the remote console 10 includes PLC control circuits, power supply and guidance panel；The behaviour
Make panel and be provided with display screen, pitching button, power switch and indicator lamp.
Embodiment 2
At the scene in continuous multi-stage separate stratum fracfturing construction, the present invention is placed on the pressure break pipeline near well head, upper end
Liquid pipe line is tapped into, lower end picks out liquid pipe line.Power supply is connected, opens dress spherical cap plate 4, stepping is controlled by remote console 10
Motor 11 turns clockwise（The direction of Fig. 2 driving wheels 7）, the counterclockwise rotates of runner 2 are driven by drive shaft 6 and driving wheel 7
360°/N；Setting ball 13 is loaded into one every time by descending order to arrive in the storage ball of runner 2, installs setting ball 13 every time
Runner 2 is controlled to be rotated by 360 °/N to next storage ball position, such as required setting ball 13 used by remote console 10
Less than N-1 ball, i.e., continue rotating wheel 2 in unnecessary empty ball position.
Pressure testing can be carried out to pressure break pipeline and rotary-type ball injector, can start after reaching pressure testing requirement after the completion of dress ball
Stratified operation, fracturing work is carried out by normal infusion program, throwing is pressed in remote console 10 when needing to put into setting ball 13
Ball button, runner 2 turn clockwise 360 °/N put into first setting ball, then proceed to infusion fracturing fluid carry out stratified operation,
So circulation can complete multistage separate stratum fracfturing construction.
Can be by way of increasing multi-ball ball injector quantity used at the same time when required pitching quantity is more than N-1 ball
Increase dress ball quantity, or can be repeated midway termination of pumping Suspend Job by way of setting ball fills ball operation and meet to use
Need.
Claims (7)
- A kind of 1. multi-ball ball injector, it is characterised in that：Mainly by body（1）, runner（2）, upper lid（3）, dress spherical cap plate（4）, on Joint（5）, drive shaft（6）, driving wheel（7）, balancing weight（8）, control line（9）, remote console（10）, stepper motor（11）With Lower contact（12）Composition, wherein：The body（1）An annular housing and a circular cavity are provided with, places runner respectively（2）And driving wheel（7）；Institute State lid（3）It is arranged on body（1）On, upper lid（3）On be provided with one and runner（2）The upper storage isodiametric through hole of ball；The runner（2）With driving wheel（7）For involute gear, two modules and pressure angle are equal, runner（2）On be provided with N number of cylindrical hole, wherein N≤12, for storing setting ball（13）, N-1 setting ball can be stored（13）, another cylinder Shape through hole is used for and pitching passage UNICOM；The setting ball（13）By order from big to small according to being positioned over runner clockwise （2）On storage ball in；The top connection（5）And lower contact（12）It is connected to lid（3）And body（1）On, for connecting liquid inlet and outlet oil Pipe；The drive shaft（6）Lower end and stepper motor（11）Connection, drive shaft（6）Upper end passes through body（1）With driving wheel（7）Even Connect；The stepper motor（11）The rotation setting number of turns, passes through drive shaft during each pitching（6）And driving wheel（7）Drive runner（2） Rotate set angle；The balancing weight（8）It is arranged at body（1）Right side, for balancing top connection（5）, lower contact（12）Left and right sides weight, Center of gravity is set to be maintained at upper and lower joint（12）On axis；The control line（9）For connecting stepper motor（11）And remote console（10）, pass through remote console（10）To step Stepper motor（11）Operating be controlled.
- A kind of 2. multi-ball ball injector according to claim 1, it is characterised in that：The remote console（10）Including PLC Control circuit, power supply and guidance panel；The guidance panel is provided with display screen, pitching button, power switch and instruction Lamp.
- A kind of 3. multi-ball ball injector according to claim 1, it is characterised in that：The upper lid（3）It is arranged on body（1） On, with body（1）Between have ring structure realize sealing.
- A kind of 4. multi-ball ball injector according to claim 1, it is characterised in that：Top connection（5）With upper lid（3）Between, under Joint（12）With body（1）Between have sealing group sealing.
- A kind of 5. multi-ball ball injector according to claim 1, it is characterised in that：Drive shaft（6）With body（1）Between have it is close Seal seals.
- A kind of 6. multi-ball ball injector according to claim 1, it is characterised in that：The dress spherical cap plate（4）It is arranged at lid （3）On, for sealing upper lid（3）On dress ball through hole.
- A kind of 7. multi-ball ball injector according to claim 1, it is characterised in that：The stepper motor（11）During each pitching Rotate counterclockwise sets the number of turns, passes through drive shaft（6）And driving wheel（7）Drive runner（2）It is rotated clockwise 360 °/N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910461.7A CN105422072B (en) | 2015-12-10 | 2015-12-10 | A kind of multi-ball ball injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910461.7A CN105422072B (en) | 2015-12-10 | 2015-12-10 | A kind of multi-ball ball injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422072A CN105422072A (en) | 2016-03-23 |
| CN105422072B true CN105422072B (en) | 2017-12-26 |
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| CN201510910461.7A Active CN105422072B (en) | 2015-12-10 | 2015-12-10 | A kind of multi-ball ball injector |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567684A (en) * | 2016-10-12 | 2017-04-19 | 中国石油天然气股份有限公司 | Profile-adjusting/water-plugging ball delivery apparatus |
| CN106437660A (en) * | 2016-10-13 | 2017-02-22 | 中国石油大学(华东) | Eccentric hole rotary block type automatic ball injector system |
| CN108775237A (en) * | 2018-05-28 | 2018-11-09 | 中石化石油工程技术服务有限公司 | The continuous ball-throwing apparatus of separate stratum fracfturing |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7571773B1 (en) * | 2008-04-17 | 2009-08-11 | Baker Hughes Incorporated | Multiple ball launch assemblies and methods of launching multiple balls into a wellbore |
| CN203515539U (en) * | 2013-10-25 | 2014-04-02 | 兰州长青石油机械厂 | Remote-control double-ball ball throwing device |
| CN204002745U (en) * | 2014-08-18 | 2014-12-10 | 姬丙兰 | A kind of separate stratum fracfturing ball-throwing apparatus |
| CN204163704U (en) * | 2014-10-21 | 2015-02-18 | 四川康克石油科技有限公司 | A kind of rotating disc type automatic ball-throwing apparatus for acidifying separate stratum fracfturing operation |
| CN104790932B (en) * | 2015-04-21 | 2017-07-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of continuous stratification pressure break ball injector and its control method |
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| CN105422072A (en) | 2016-03-23 |
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Effective date of registration: 20200922 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |