CN110469305A - A kind of multistage fracturing pitching machine - Google Patents
A kind of multistage fracturing pitching machine Download PDFInfo
- Publication number
- CN110469305A CN110469305A CN201910628571.2A CN201910628571A CN110469305A CN 110469305 A CN110469305 A CN 110469305A CN 201910628571 A CN201910628571 A CN 201910628571A CN 110469305 A CN110469305 A CN 110469305A
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- China
- Prior art keywords
- ball
- pressure break
- break ball
- fracturing
- pressure
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Classifications
-
- 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 multistage fracturing pitching machines, including fracturing fluid channel, goal track and pitching channel；Have in the fracturing fluid channel and takes ball component and pressure break ball chuck gripping member；The goal track is for containing several pressure break balls；The end of the pressure break ball chuck gripping member and the goal track is connected, for containing a pressure break ball；It is described take ball component and reciprocatingly slide with the fracturing fluid channel connect；In fracturing process, the fracturing fluid channel inner pressure continues to increase；The pressure is used to that the ball component of taking to be driven to enter the pressure break ball chuck gripping member and the pressure break ball is pushed into the pitching channel；When pressure break presses off stratum, the pressure reduction in the fracturing fluid channel is described to take ball component reset, and the pressure break ball in the pitching channel is driven to put into the stratum；The pressure break ball in the goal track sequentially enters in the pressure break ball chuck gripping member by gravity；Solves the problems such as continuous pitching of existing ball-throwing apparatus needs pressure release.
Description
Technical field
The present invention relates to oil field fracturing ball-throwing apparatus.
Background technique
Currently, in the prior art for the pressing crack construction of carbonate rock, the existing ball-throwing apparatus in China is had following defects that
1, it requires manually to carry out pressure release after each pitching finishes, not only increases the pressure break time, and also in pressure release
There are some potential safety problemss；
2, the pressure break of carbonate rock large size fracture cave reservoir, formation condition are complicated.Conventional pressure break is all to design in advance with ball injector
The amount of good pressure break scale, sand feeding amount plus fracturing fluid and acid solution then pitching pressure break step by step, and the above Fracturing Project is for carbonic acid
The pressure break of rock salt reservoir is all based on detection of the logging technique realization to seam hole structure and position, however current detection accuracy is also
That degree is not achieved, practical reservoir configuration is considerably complicated, and solution cavity and crack location can not accurately judge, therefore for this difficulty
Its pump note program cannot be reasonably designed with the oil reservoir of accurate judgement fracture hole position.Therefore, how to improve the structure of ball-throwing apparatus,
So as to improve carbonate reservoir horizontal well multistage fracturing construction effect, has become in fracturing work one and urgently to be resolved ask
Topic.
Summary of the invention
In view of this, the present invention provides one kind, the invention proposes a kind of multistage fracturing pitching machine, the automatic ball-throwings
Device is not required to pressure release in the gap of continuous pitching, reduces the pressure break time, increases the safety of pressure break；Meanwhile for carbonic acid
The pressure break of rock salt large size fracture cave reservoir, without the corresponding pump note program of design, it is only necessary to know the Position Approximate in solution cavity and crack
It can realize multistage fracturing.
For achieving the above object, the technical solution adopted by the present invention is that: a kind of multistage fracturing pitching machine, it is special
Sign is, comprising:
Fracturing fluid channel, goal track and pitching channel；
Have in the fracturing fluid channel and takes ball component and pressure break ball chuck gripping member；
The goal track, for containing several pressure break balls；
The pressure break ball chuck gripping member is connected with the end of the goal track, for containing a pressure break ball；
It is described take ball component and reciprocatingly slide with the fracturing fluid channel connect；
In fracturing process, the fracturing fluid channel inner pressure continues to increase；
The pressure described take ball component into the pressure break ball chuck gripping member and the pressure break ball is pushed into the throwing for driving
Ball channel；
The pressure break presses off stratum, and the pressure reduction in the fracturing fluid channel is described to take ball component reset, for driving
The pressure break ball stated in pitching channel puts into the stratum；
The pressure break ball in the goal track, sequentially enters by gravity in the pressure break ball chuck gripping member.
It is preferably, described to take ball component, comprising:
Piston body；
Have on the piston body across its radial pitching channel；
Elastic slide block is connected on the piston body；
The piston body reciprocatingly slides with the fracturing fluid channel with the assembly of the elastic slide block and connect；
The elastic slide block, for pushing the pressure break ball in the pressure break ball chuck gripping member to enter in the pressure break channel.
Preferably, the elastic slide block has guiding incline；
The guiding incline, for compressing the spring being attached thereto when elastic slide block rebound.
Preferably, the pressure break ball chuck gripping member, the upper end have the pressure break ball entrance, and lower end has the pressure break ball-joint
Holder structure, and there is access way；
The end of the pressure break ball entrance and the goal track is connected；
The access way releases the pressure break ball for the elastic slide block.
Preferably, the pressure break ball entrance is rectangular, and gripper jaw is respectively set in the rectangular quadrangle, the gripper jaw
Lower end curves inwardly to form the pressure break ball-joint holder structure；
Gap between the two neighboring gripper jaw constitutes the access way.
Preferably, the pressure break ball-joint holder structure has central concave；
The central concave, for avoiding the pressure break ball from rolling out automatically from the pressure break ball chuck gripping member.
Preferably, the fracturing fluid channel, matrix are tube body；
The tube body, one end connect fracturing string, and connection safety valve；
The safety valve is for opening and closing the fracturing fluid channel；
There is ball hole and ball-falling-in port on the tube body；
The ball hole is connected to the pressure break ball entrance；
The ball-falling-in port is connect with wellhead assembly；
The tube body radially has prominent space；
The prominent space, the interior fixed pressure break ball chuck gripping member, and it is used as the elastic slide block from diameter on the assembly
To the running track after pop-up；
The running track and the access way are point-blank；
The pitching channel is connected to the ball-falling-in port, and the pressure break ball puts into the stratum from the ball-falling-in port.
Preferably, the goal track is arranged in column body；
The cylinder is fixed on the tube body.
Preferably, the goal track is herringbone.
Preferably, the cylinder and the prominent outside are covered with upper cover；
The upper cover lower part connects pedestal；
Ball-loading hole is arranged in the upper cover, and the ball-loading hole is communicated with the goal track.
Preferably, the outlet end in the fracturing fluid channel connects reciprocating drive mechanism；
The reciprocating drive mechanism is used to provide the described and takes the driving force that ball component moves back and forth in the fracturing fluid channel.
The invention has the following beneficial effects:
1, the application ball injector without human intervention, is only placed in well head before construction, is mounted among fracturing string, access pressure
Split liquid.Work progress is continuously, not need pressure release and fill ball again, reduce the complexity of operation, reduce pressure release
Bring risk in operating process.
, the ball injector apply in carbonate reservoir, without the corresponding pump note program of design, only need to know solution cavity and
The Position Approximate in crack is then specifically if pump injection pressure power sharply declines explanation then by observing its variation for pumping injection pressure power
It is connected to solution cavity or fissured structure, device pitching at this time carries out the pressure break of next step, so realization multistage fracturing.
3, the reciprocating motion for taking ball component, controllability are controlled merely with the pressure of fracturing fluid itself and reset spring elastic force
It is good.
, the switching that automatically controls and manually control increase the alternative and reliability of device.By data early period
It arranges and judges, it is desirable to when carrying out pressing crack construction to specified net horizontal section, can continuously be thrown manually by remote control
Ball or dress ball when be packed into specified section match size pressure break ball to complete the pressure break to specified level well section.When taking ball component
When breaking down pitching can be carried out using remote control.
Detailed description of the invention
By the description below with reference to attached drawing to the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage is apparent, in the accompanying drawings:
Fig. 1 is the main view of the multistage fracturing pitching machine of the embodiment of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the top view for the elastic slide block 13 that piston body 3 is connect with it；
Fig. 4 is the B-B sectional view of Fig. 3；
Fig. 5 is the main view for the elastic slide block 13 that piston body 3 is connect with it；
Fig. 6 is the left view for the elastic slide block 13 that piston body 3 is connect with it；
Fig. 7 is the structural schematic diagram of pressure break ball chuck gripping member 14；
Fig. 8 is the top view of pressure break ball chuck gripping member 14；
Fig. 9 is the main view of pressure break ball chuck gripping member 14；
Figure 10 is the left view of pressure break ball chuck gripping member 14；
Figure 11 is the structural schematic diagram of tube body 16；
Figure 12 is the isometric oblique mapping of tube body 16；
Figure 13 is the main view of tube body 16；
Figure 14 is the left view of tube body 16；
Figure 15 is the top view of tube body 16；
Figure 16 is the isometric oblique mapping of pedestal 17；
Figure 17 is the isometric oblique mapping of upper cover.
Specific embodiment
Below based on embodiment, present invention is described, but it is worth noting that, the present invention is not limited to these realities
Apply example.It is detailed to describe some specific detail sections below in datail description of the invention.However, for not detailed
The present invention can also be understood completely in the part described to the greatest extent, those skilled in the art.
In addition, it should be understood by one skilled in the art that provided attached drawing simply to illustrate that the purpose of the present invention,
Feature and advantage, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
The multistage fracturing pitching machine of the application, total design concept are as follows:
Pitching machine has fracturing fluid channel 8, goal track and pitching channel 10.
Wherein, have in fracturing fluid channel 8 and take ball component and pressure break ball chuck gripping member 14, if goal track is for containing dry-pressing
Blastomere 7；The end of pressure break ball chuck gripping member 14 and goal track is connected, for containing a pressure break ball 7；Take ball component and fracturing fluid
Channel 8 reciprocatingly slides connection.
In fracturing process, 8 internal pressure power of fracturing fluid channel continues to increase, which is to take ball group for driving
Part enters pressure break ball chuck gripping member 14 and pressure break ball 7 is pushed into pitching channel 10.
When pressure break is opened that time on stratum, pressure is reduced rapidly in fracturing fluid channel 8, takes ball component reset, and reset is taken
Pressure break ball 7 in ball component driving pitching channel 10 is put into the stratum pressed off, completes to throw the closure fracturing stratum of pressure break ball 7
Task.
And after the pressure break ball 7 in pressure break ball chuck gripping member 14 is pushed into pitching channel 10, the pressure break ball 7 in goal track relies on
Gravity sequentially enters in 7 clamping piece 14 of pressure break ball.
Specifically, in conjunction with attached drawing to the components composition of multistage fracturing pitching machine of the invention, specific structural features
And assembly relation is illustrated:
Fig. 1 is the main view of the multistage fracturing pitching machine of the embodiment of the present invention.Fig. 2 is the A-A sectional view of Fig. 1.By Fig. 1 knot
It closes shown in Fig. 2: multistage fracturing pitching machine, including ball injector main body.
Ball injector body interior has fracturing fluid channel 8, and the matrix in fracturing fluid channel 8 is tube body 16；The left side of tube body 16
Safety valve 1 is installed.The spherical part of 1 lower part of safety valve is provided with the hole that front and back penetrates through.When the central axis and tube body of hole
When the central axis in 16 left sides inner cavity coincides, safety valve 1 is in the open state, and fracturing fluid can enter pressure by hole at this time
Split liquid channel 8.When the central axis of the central axis of hole and tube body 16 is perpendicular, safety valve 1 is in close state, pressure break
Liquid cannot be entered in fracturing fluid channel 8 by hole.
In Fig. 2, have in tube body 16 and take ball component, taking ball component can press in tube body 16 by driving force effect
It splits in liquid channel 8 and reciprocatingly slides.It includes piston body 3 and elastic slide block 13 that this, which takes ball component,.
Fig. 3 is the top view for the elastic slide block 13 that piston body 3 is connect with it.Fig. 4 is the B-B sectional view of Fig. 3.Fig. 5 is
The main view for the elastic slide block 13 that piston body 3 is connect with it.Fig. 6 is a left side for the elastic slide block 13 that piston body 3 is connect with it
View.
Piston body 3 is a cylindrical body it can be seen from Fig. 3-Fig. 6, opens about one perforated holes on the cylinder,
The hole is pitching channel 10.
The central axis in pitching channel 10 and the central axis of piston body 3 are perpendicular.Piston body 3 is divided in pitching channel 10
Left slider 9, right sliding block 4.Elastic slide block 13 is connected with spring on left slider 9, right 4 right end of sliding block and tube body 16 pass through reset spring
5 are connected.
In Fig. 2, also there is pressure break ball chuck gripping member 14 in tube body 16.
Fig. 7 is the structural schematic diagram of pressure break ball chuck gripping member.Fig. 8 is the top view of pressure break ball chuck gripping member.Fig. 9 is pressure break ball chuck
The main view of gripping member.Figure 10 is the left view of pressure break ball chuck gripping member.
Pressure break ball chuck gripping member 14 has a pressure break ball entrance 2 it can be seen from Fig. 7-Figure 10, which is
Rectangular, along rectangular 2 surrounding of the pressure break ball entrance tool there are four gripper jaw 15, the lower end of this four gripper jaws 15 curves inwardly,
A recessed portion is collectively formed, pressure break ball 7 is stored in the depressed area, prevents pressure break ball 7 from sending out in pressure break ball chuck gripping member 14
It is raw to roll.Gap between two neighboring gripper jaw 15 meets the requirement that elastic slide block 13 passes through, which constitutes elastic slide block
13 access way Jing Guo pressure break ball chuck gripping member 14.
Figure 11 is the structural schematic diagram of tube body 16.Figure 12 is the isometric oblique mapping of tube body 16.Figure 13 is the main view of tube body 16
Figure.Figure 14 is the left view of tube body 16.Figure 15 is the top view of tube body 16.
As shown in Figure 11-Figure 15: tube body 16 radially has a prominent space, which is the connected on tube body 16
One chamber 20 and second chamber 21.First chamber 20, second chamber 21 and tube body 16 collectively form fracturing fluid channel 8.
Pressure break ball chuck gripping member 14 is integrally attached in second chamber 21, connects cylinder 19, column in the outside of second chamber 21
Goal track, the pressure break ball entrance 2 of the straight-through pressure break ball chuck gripping member 14 in the outlet of goal track are processed in body 19.
Goal track is preferably shaped to down herringbone, and such structure designs, and the quantity of pressure break ball 7 is put into goal track
It can reach 20, large-scale staged fracturing can be carried out.
First chamber 20 moves when marquis so far, bullet from 16 left side of tube body together with piston body 3 for elastic slide block 13 to the right
Property sliding block 13 its connecting spring elastic force effect under, pop up to first chamber 20, to continue the process moved to right in piston body 3
In, elastic slide block 13 can enter in the pressure break ball chuck gripping member 14 being fixed in second chamber 21, and by pressure break ball 7 therein
It is released from pressure break ball chuck gripping member 14.
In Fig. 2, Fig. 4 and Fig. 5, the left side of elastic slide block 13 has guiding incline, and the design of the guiding incline is when reset bullet
When spring 5 is sprung back, the assembly of piston body 3 and elastic slide block 13 during continuing mobile to the left by first chamber 20,
Elastic slide block 13 can be guided to compress the spring that is attached thereto and can smoothly enter into first chamber 20 tube body 16 in.To realize
It takes ball component and fracturing fluid channel 8 reciprocatingly slides the purpose of connection.
Figure 16 is the isometric oblique mapping of pedestal 17.Figure 17 is the isometric oblique mapping of upper cover 18.
As shown in Fig. 2 combination Figure 16, Figure 17: having upper cover 18 and pedestal 17 in the outside on 16 right side of tube body.In upper cover 18
It is provided with ball-loading hole 11, ball-falling-in port 12 is provided on tube body 16.The entrance of goal track in cylinder 19 is communicated with ball-loading hole 11.
The inner space that upper cover 18 is constituted after connecting with pedestal 17, for protecting first chamber 20, second chamber 21 and column
Body 19.
For the multifunction of realization device, so that the ball injector of the application can both make the automatic ball-throwing of Carbonate Karst Cave
Pressure break can also do conventional pressure break, and reciprocating drive mechanism 6 is connected on the right side of ball injector main body, which can
Ball component is taken with control to reciprocatingly slide along fracturing fluid channel 8.
In the automatic ball-throwing for doing Carbonate Karst Cave, the long-range reciprocating drive mechanism 6 on right side is in close state.
When doing conventional pressure break, reciprocating drive mechanism 6 is connected directly between to the right end of right sliding block 4, the active of whole device
Power is provided by reciprocating drive mechanism 6, is responsible for taking the reciprocating motion of ball component.
It is particularly used in conventional pressure break when with the device, when pressurization, reciprocating drive mechanism 6 can move right, and drive
It takes ball component to move right, allows pressure break ball 7 to enter pitching channel 10 and wait pitching, when reaching scheduled pitching position, back and forth
Driving mechanism 6 is moved to the left, and promotion is taken ball component and is moved to the left, and so that pressure break ball 7 is entered stratum from ball-falling-in port 12, to purpose well section
It is blocked.
The reciprocating drive mechanism 6 can be using Remote Hydraulic control pump.Reciprocating drive mechanism 6 both can be grasped manually
Make, also can use computer remote control, the switching of mode can be thus carried out when wherein a kind of operation is broken down, with
Guarantee being normally carried out for pressure break.The switching for automatically controlling and manually controlling increases the alternative and reliability of device.When taking
Ball component can carry out pitching using remote control when breaking down.
Specifically, the course of work of multistage fracturing pitching machine of the present invention is specifically described below:
Before starting pressing crack construction, pitching quantity is calculated according to formation data, later by the ball-falling-in port of pitching machine 12 and well
Mouth device carries out screw thread and is connected, and fracturing string is accessed using threaded connection in the left side of tube body 16.
It is packed into pressure break ball 7 from ball-loading hole 11, closes ball-loading hole 11 after the completion of dress ball.First pressure break ball 7 can be by weight
Power falls into pressure break ball chuck gripping member 14 and is stored, other pressure break balls 7 can be then stored in goal track.
When original state, the assembly that compressed spring forms elastic slide block 13 and piston body 3 is packed into tube body 16, and position
In the left side of first chamber 20.
When starting pressing crack construction, the fracturing fluid mixed is pumped into fracturing string by pump truck, opens the safety-valve 1, it can
There is fracturing fluid by entering in fracturing fluid channel 8.
During injecting fracturing fluid constantly into stratum, fracturing fluid can build the pressure in the earth formation, the operation pressure of well head
It rises with it, during pressure constantly rises, the fracturing fluid of piston body 3 and 13 assembly of elastic slide block in lasting increase
It constantly moves right under liquid thrust.
When at the first chamber 20 that piston body 3 and 13 assembly of elastic slide block move right to tube body 16, pass through originally
Spring, which is fixed on the elastic slide block 13 in compressive state on piston body 3 and will pop up, enters first chamber 20.
Elastic slide block 13 moves right jointly with piston body 3, when elastic slide block 13 is moved at pressure break ball chuck gripping member 14, bullet
Property sliding block 13 can be from entering in the gap of adjacent two gripper jaw 15 of pressure break ball chuck gripping member 14 and will be stored up in pressure break ball chuck gripping member 14
The pressure break ball 7 deposited is pushed into the pitching channel 10 on piston body 3, and then pressure break ball 7 will move right with piston body 3
It is dynamic.As pressure continues to increase, piston body 3 can be moved to right persistently until reaching the extreme position of most right 16 right end of tube body.
When man-made fracture is connected to intrinsic fracture or cavern, well head pressure can decline rapidly, and fracturing fluid acts on work
The thrust in 3 left side of cock body can also decline rapidly, and the elastic force of 3 right side reset spring 5 of piston body plays leading role at this time, pushes and lives
Cock body 3 is moved to the left, and when pitching channel 10 is moved to 12 position of ball-falling-in port, pressure break ball 7 can fall into stratum from ball-falling-in port 12, is come
Block pressed off interval.
It has blocked after pressing off interval, has continued to inject with fracturing fluid, next pressure break ball 7 can rely on gravity from goal rail
Road is fallen in pressure break ball chuck gripping member 14, repeats aforesaid operations, the i.e. automatic ball-throwing of the multistage pressure break of realization carbonate formation.
After the completion of pressure break, prepare to stop when being pumped into fracturing fluid, when first safety valve being placed in off, the pressure newly injected
Splitting liquid cannot enter back into fracturing fluid channel 8, to prevent following fracturing fluid recovery (backflow) from going back to ground.
Embodiment described above is only to express embodiments of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that those skilled in the art, In
Under the premise of not departing from present inventive concept, several deformations, same replacement can also be made, improved etc., these belong to the present invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of multistage fracturing pitching machine characterized by comprising
Fracturing fluid channel (8), goal track and pitching channel (10)；
Have in the fracturing fluid channel (8) and takes ball component and pressure break ball chuck gripping member (14)；
The goal track, for containing several pressure break balls (7)；
The pressure break ball chuck gripping member (14) is connected with the end of the goal track, for containing a pressure break ball (7)；
It is described take ball component and reciprocatingly slide with the fracturing fluid channel (8) connect；
In fracturing process, fracturing fluid channel (8) the internal pressure power continues to increase；
The pressure described take ball component into the pressure break ball chuck gripping member (14) and pushes away the pressure break ball (7) for driving
Enter the pitching channel (10)；
The pressure break presses off stratum, and the pressure reduction in the fracturing fluid channel (8) is described to take ball component reset, for driving
The pressure break ball (7) moved in the pitching channel (10) puts into the stratum；
The pressure break ball (7) in the goal track, sequentially enters by gravity in pressure break ball (7) clamping piece (14).
2. a kind of multistage fracturing pitching machine according to claim 1, which is characterized in that described to take ball component, comprising:
Piston body (3)；
Have on the piston body (3) across its radial pitching channel (10)；
Elastic slide block (13) are connected on the piston body (3)；
The piston body (3) reciprocatingly slides with the fracturing fluid channel (8) with the assembly of the elastic slide block (13) and connect；
The elastic slide block (13), for pushing the pressure break ball (7) in the pressure break ball chuck gripping member (14) to enter the throwing
In ball channel (10).
3. a kind of multistage fracturing pitching machine according to claim 2, it is characterised in that:
The pressure break ball chuck gripping member (14), the upper end have the pressure break ball entrance (2), and lower end has the pressure break ball-joint support knot
Structure, and there is access way；
The end of the pressure break ball entrance (2) and the goal track is connected；
The access way releases the pressure break ball (7) for the elastic slide block (13).
4. a kind of multistage fracturing pitching machine according to claim 3, it is characterised in that:
The pressure break ball entrance (2) be it is rectangular, the rectangular quadrangle is respectively set gripper jaw (15), the gripper jaw (15)
Lower end curves inwardly to form the pressure break ball-joint holder structure；
Gap between the two neighboring gripper jaw (15) constitutes the access way.
5. a kind of multistage fracturing pitching machine according to claim 3, it is characterised in that:
The pressure break ball-joint holder structure has central concave；
The central concave, for avoiding the pressure break ball (7) from rolling out automatically from the pressure break ball chuck gripping member (14).
6. a kind of multistage fracturing pitching machine according to claim 3, it is characterised in that:
The fracturing fluid channel (8), matrix are tube body (16)；
The tube body (16), one end connect fracturing string, and connection safety valve (1)；
The safety valve (1) is for opening and closing the fracturing fluid channel (8)；
There is ball hole and ball-falling-in port (12) on the tube body (16)；
The ball hole is connected to pressure break ball (7) entrance；
The ball-falling-in port (12) connect with wellhead assembly；
The tube body (16) radially has prominent space；
The prominent space, in fixed pressure break ball (7) clamping piece (14), and be used as the elastic slide block (13) from described
Running track after radially being popped up on assembly；
The running track and the access way are point-blank；
The pitching channel (10) is connected to the ball-falling-in port (12), and the pressure break ball (7) puts into institute from the ball-falling-in port (12)
State stratum.
7. a kind of multistage fracturing pitching machine according to claim 6, it is characterised in that:
The goal track, setting are internal in cylinder (19)；
The cylinder (19), is fixed on the tube body (16).
8. a kind of multistage fracturing pitching machine according to claim 6, it is characterised in that:
The goal track is herringbone.
9. a kind of multistage fracturing pitching machine according to claim 8, it is characterised in that:
The cylinder (19) and the prominent outside are covered with upper cover (18)；
Upper cover (18) lower part connects pedestal (17)；
Ball-loading hole (11) are arranged in the upper cover (18), and the ball-loading hole (11) communicates with the goal track.
10. any a kind of multistage fracturing pitching machine in -9 according to claim 1, it is characterised in that:
The outlet end in the fracturing fluid channel connects reciprocating drive mechanism (6)；
The reciprocating drive mechanism (8) is used to provide the described and takes the drive that ball component moves back and forth in the fracturing fluid channel (8)
Power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628571.2A CN110469305A (en) | 2019-07-12 | 2019-07-12 | A kind of multistage fracturing pitching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628571.2A CN110469305A (en) | 2019-07-12 | 2019-07-12 | A kind of multistage fracturing pitching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469305A true CN110469305A (en) | 2019-11-19 |
Family
ID=68508114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910628571.2A Withdrawn CN110469305A (en) | 2019-07-12 | 2019-07-12 | A kind of multistage fracturing pitching machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
-
2019
- 2019-07-12 CN CN201910628571.2A patent/CN110469305A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
| CN111577233B (en) * | 2020-05-28 | 2022-03-29 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
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Application publication date: 20191119 |