CN106837244B - Ball throwing device - Google Patents
Ball throwing device Download PDFInfo
- Publication number
- CN106837244B CN106837244B CN201710070805.7A CN201710070805A CN106837244B CN 106837244 B CN106837244 B CN 106837244B CN 201710070805 A CN201710070805 A CN 201710070805A CN 106837244 B CN106837244 B CN 106837244B
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- closing piece
- ball
- pressure
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- valve
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 55
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- 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)
- Check Valves (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a ball-throwing device, which comprises an outer sleeve, wherein the upper end of the outer sleeve is communicated with a pressure-bearing pipe, the lower end of the outer sleeve is fixed with a hoop head, and a first clamping groove and a second clamping groove are sequentially arranged in the outer sleeve; a liquid inlet hole is formed in the clamp head; the pressure-bearing pipe can be communicated with the upper end of the outer sleeve and the liquid inlet hole, a liquid outlet hole is formed in the pressure-bearing pipe, a first valve is arranged on the liquid outlet hole, a second valve is arranged between the liquid outlet hole and the liquid inlet hole, and the surface area of the upper end surface of the piston and the surface area of the lower end surface of the piston which are arranged in the outer sleeve are larger than the surface area of the lower end surface of the; the secondary reset mechanism is connected with the piston; the secondary reset mechanism comprises a spring reset mechanism and a locking block reset mechanism; the upper end of the central cylinder body is fixed with the spring return mechanism; the outer side wall of the central cylinder body is provided with a locking block groove matched with the locking block resetting mechanism; the lower end of the central cylinder body is provided with a baffle plate, and sieve pores with the size smaller than that of the plugging adjusting ball are arranged on the baffle plate; pen caps and pen tips. The ball throwing device provided by the invention can realize the under-pressure ball throwing and blocking regulation.
Description
Technical field
The present invention relates to the water filling field in oil-gas field development, in particular to a kind of ball-throwing apparatus.
Background technique
As oil exploitation enters the later period, oil reservoir energy itself is gradually consumed, by water injection technology to oil layer energy into
Row supplement, it appears particularly important.And all there is the problems such as intake profile is uneven, interlayer contradiction is big substantially in water injection well, need into
Row profile control.Currently, common profile control technology includes：Chemical profile control, ball injection profile control etc., wherein exist relative to chemical profile control and adjust
Cut open the problems such as dosage is big, heavy workload, operating cost are high, profile control agent pollution stratum, ball injection profile control is because of its simple process, at low cost
The advantages that and be used widely.
Currently, pitching technique in the prior art, it is contemplated that bottom pressure is higher after water filling, is not filling the water typically
Under the premise of by adjusting stifled ball from well head test valve investment, wait deliver after just filled the water again.In contrast, waterflooding extraction
Process flow it is relatively complicated.
Therefore, it is necessary to propose a kind of ball-throwing apparatus with pressure, realizes while water filling, pitching operation is carried out, thus greatly
The big process flow for simplifying waterflooding extraction.
Summary of the invention
The object of the present invention is to provide a kind of ball-throwing apparatus, can be realized delivery with pressure and adjust stifled ball, that is, are not needing to stop
Achievable pitching operation, enormously simplifies the process flow of waterflooding extraction under the premise of water filling.
Following technical proposal can be used to realize in above-mentioned purpose of the invention：
A kind of ball-throwing apparatus, including：
Housing, the upper end are communicated with pressure-bearing pipe, and lower end is fixed with hoop, and the internal position close to lower end is along axis
To being disposed with the first card slot and the second card slot；Inlet opening is provided on the hoop；The pressure-bearing pipe can be connected to described
The upper end of housing and the inlet opening are provided with fluid hole in the pressure-bearing pipe, the first valve are provided on the fluid hole, described
The second valve is provided on fluid hole to the pressure-bearing pipe between the inlet opening,
The upper surface surface area of the piston, the piston that are arranged in the housing is greater than its lower end surface surface area；
The second level resetting-mechanism being connect with the piston；The second level resetting-mechanism includes that spring return mechanism and closing piece are multiple
Position mechanism；
The central cylinder that upper end and the spring return mechanism are fixed；It is provided on the lateral wall of the central cylinder and institute
State the closing piece slot that closing piece resetting-mechanism matches；The lower end of the central cylinder is provided with baffle, is provided with ruler on the baffle
It is very little to be less than the sieve pore for adjusting stifled ball；
The pen cap and pen tip, the pen cap and pen tip and the baffle fit are formed for placing the cavity for adjusting stifled ball；
When pitching, second valve is opened, closes first valve, under bottom pressure effect, the piston is to moving down
It is dynamic, drive the second level resetting-mechanism to move down, the spring return mechanism stops moving down after being fastened on first card slot,
The closing piece resetting-mechanism is unlocked after being fastened on second card slot；The central cylinder is mobile relative to the pen cap, from
And open the pen tip；
After pitching, second valve is closed, opens first valve, the second level resetting-mechanism is made in bottom pressure
It automatically resets under.
It in a preferred embodiment, further include connecting cylinder, the connecting cylinder is integrally in hollow tube body, and the upper end is fixed
On closing piece resetting-mechanism, the other end is connected with the upper end of the pen cap.
In a preferred embodiment, the spring return mechanism includes：Upper pressing cap, spring, lower pressing cap, wherein
The inside of the upper pressing cap upper end is fixedly connected with the piston, and the inside of lower end is fixed with the central cylinder
Connection,
The lower pressing cap is resisted against on the closing piece resetting-mechanism；
The spring is resisted against between the upper pressing cap and lower pressing cap.
In a preferred embodiment, the central cylinder includes upper fluid cylinder and lower fluid cylinder, wherein
The outside of the upper end of the upper fluid cylinder is fixedly connected with the upper pressing cap of the spring return mechanism, and the piston,
It is matched between upper fluid cylinder and the upper pressing cap by the upper end closed of the upper fluid cylinder；
The inside of the upper end of the lower fluid cylinder is fixedly connected with the upper fluid cylinder, and lower end is connected with the baffle.
In a preferred embodiment, the closing piece resetting-mechanism includes：Closing piece, closing piece seat, wherein
The aperture for accommodating the closing piece is provided on the closing piece seat；
The back of the closing piece is provided with garter spring on excentric outside；Closing piece slot and the closing piece on the central cylinder
It fastens, the closing piece resetting-mechanism is in the lock state, and when the closing piece is skidded off from the closing piece slot, the closing piece is multiple
Position mechanism is in the unlocked state.
In a preferred embodiment, the upper end of the connecting cylinder is fixedly connected by screw thread with the closing piece seat, under
End is fixedly connected by screw thread with the pen cap, is formed between the connecting cylinder and the hoop and is connected to the inlet opening
Annular space.
In a preferred embodiment, the upper end of the pressure-bearing pipe and the housing is additionally provided with hose coupling, accordingly
The interconnecting piece for cooperating with the hose coupling is provided on the inside of the outer set upper side.
In a preferred embodiment, the pen tip is rubber pen tip, and entirety is by multiple fanning strips with certain gap
The cone surrounded, one end are fixedly connected with the pen cap, and the other end is formed for the opening for adjusting stifled ball that circulates, when the gear
It is described to adjust stifled ball that be forced out by the opening when plate moves down.
In a preferred embodiment, the pressure-bearing pipe is hose, is provided with threeway mechanism in the pressure-bearing pipe, described three
Logical mechanism, which has, to be connected to the pressure-bearing pipe and the first interface of the relatively close inlet opening, is relatively distant from the inlet opening
Second interface and the third interface bypassed with the pressure-bearing pipe, correspondingly, first valve is arranged on the third interface.
In a preferred embodiment, the ball-throwing apparatus further includes multiple sealing rings.
The features and advantages of the invention are：By the way that pressure-bearing pipe and corresponding first valve, the second valve is arranged in the external of housing,
Corresponding resetting-mechanism is set in the inside of the housing, in use, being by the opening and closing for controlling first valve and the second valve
Corresponding pitching work can be achieved, without stopping water filling, after pitching, the corresponding opening and closing for switching the first valve, the second valve
State can be realized under the hydraulic action of shaft bottom and automatically reset.Generally speaking, present apparatus clever structure, it is complete by bottom pressure
It at the process adjusted stifled ball and return to original state is launched, repeated multiple times can utilize, save pitching cost, while can be by not
Stop water filling and complete pitching process, simplifies process flow.
Detailed description of the invention
Fig. 1 is a kind of ball-throwing apparatus original state structural schematic diagram in the application embodiment；
Fig. 2 is a kind of ball-throwing apparatus unlocked state structural schematic diagram in the application embodiment；
Fig. 3 is a kind of nib structure main view of ball-throwing apparatus in the application embodiment；
Fig. 4 is a kind of nib structure left view of ball-throwing apparatus in the application embodiment.
Description of symbols：
1, pressure-bearing pipe；3, hose coupling；5, piston；51, upper surface；52, lower end surface；6, upper pressing cap；7, spring；8, it pushes
Cap；9, upper fluid cylinder；10, closing piece seat；11, closing piece；12, closing piece slot；13, garter spring；15, housing；16, lower fluid cylinder；17, connecting cylinder；
18, fluid hole；19, the first valve；20, threeway mechanism；21, the first card slot；22, the second valve, the 23, second card slot；24, sealing ring；
25, inlet opening；26, baffle；27, sieve pore；28, the pen cap；29, hoop；30, stifled ball is adjusted；31, pen tip.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, elaborate to technical solution of the present invention, it should be understood that these
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, this field skill
Art personnel each fall in the application range as defined in the appended claims the modification of various equivalent forms of the invention.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
The present invention provides a kind of ball-throwing apparatus, can be realized delivery with pressure and adjusts stifled ball, i.e., before not needing to stop water filling
Achievable pitching operation is put, the process flow of waterflooding extraction is enormously simplified.
Fig. 1 and Fig. 2 are please referred to, a kind of ball-throwing apparatus is provided in the application embodiment, may include：Housing 15,
Upper end is communicated with pressure-bearing pipe 1, and lower end is fixed with hoop 29, and the internal position close to lower end is axially disposed with
First card slot 21 and the second card slot 23；Inlet opening 25 is provided on the hoop 29；The pressure-bearing pipe 1 can be connected to the housing
15 upper end and the inlet opening 25 are provided with fluid hole 18 in the pressure-bearing pipe 1, are provided with the first valve on the fluid hole 18
19, it is provided with the second valve 22 on the fluid hole 18 to the pressure-bearing pipe 1 between the inlet opening 25, is arranged in the housing 15
Piston 5, the piston 5 51 surface area of upper surface be greater than its 52 surface area of lower end surface；The second level connecting with the piston 5 is multiple
Position mechanism；The second level resetting-mechanism includes spring return mechanism and closing piece resetting-mechanism；Upper end and the spring return mechanism
Fixed central cylinder；The closing piece slot matched with the closing piece resetting-mechanism is provided on the lateral wall of the central cylinder
12；The lower end of the central cylinder is provided with baffle 26, and size is provided on the baffle 26 and is less than the sieve pore 27 for adjusting stifled ball 30；
The pen cap 28 and pen tip 31, the pen cap 28 and pen tip 31 and the baffle 26 are cooperatively formed for placing the cavity for adjusting stifled ball 30；
When pitching, second valve 22 is opened, closes first valve 19, under bottom pressure effect, the piston 5 is moved down,
The second level resetting-mechanism is driven to move down, the spring return mechanism stops moving down after being fastened on first card slot 21,
The closing piece resetting-mechanism is unlocked after being fastened on second card slot 23；The relatively described pen cap 28 of the central cylinder moves
It is dynamic, to open the pen tip 31；After pitching, second valve 22 is closed, opens first valve 19, the second level is multiple
Position mechanism automatically resets under bottom pressure effect.
Ball-throwing apparatus described herein passes through in the external setting pressure-bearing pipe 1 of housing 15 and corresponding first valve 19, the
Corresponding resetting-mechanism is arranged in the inside of the housing 15, in use, by controlling first valve 19 and second in two valves 22
Corresponding pitching work can be realized in the opening and closing of valve 22, corresponding to switch the first valve after pitching without stopping water filling
19, the open and-shut mode of the second valve 22 can be realized under bottom pressure effect and automatically reset.Generally speaking, present apparatus structure is skilful
It is wonderful, it completes to launch the process adjusted stifled ball 30 and return to original state by bottom pressure, repeated multiple times can utilize, save throwing
Ball cost, while pitching process can be completed by not stopping water filling, simplify process flow.
In the present embodiment, housing 15 are in hollow tubulose, and the upper end can be connected by connector with pressure-bearing pipe 1
It connects, lower end is fixedly connected with hoop 29, and the housing 15 is axially disposed with the in the inside close to its lower end
One card slot 21 and the second card slot 23；First card slot 21 can be the first limiting stand formed on the inner wall of the housing 15
Rank, second card slot 23 can be the second limited step formed on the inner wall of the housing 15, second limiting stand
Aperture at rank is less than the aperture at first limited step.
The upper end of the hoop 29 is fixedly connected with the housing 15, and lower end is for connecting well head test valve；?
Inlet opening 25 is provided on the hoop 29；Shaft bottom band press liquid can flow through the pressure-bearing pipe 1 by the inlet opening 25
And then the upper end of the housing 15 is imported, act on it on 5 upper surface 51 of piston.
The pressure-bearing pipe 1, for being connected to 15 upper end of the inlet opening 25 and the housing.The pressure-bearing pipe 1 is hose, tool
Body, can be pressure-resistant rubber hose etc..Further, the upper end of the pressure-bearing pipe 1 and the housing 15 is also provided with soft
Pipe fitting 3 is provided with the interconnecting piece for cooperating with the hose coupling 3 on the inside of 15 upper end of housing accordingly.Tool
Body, the interconnecting piece can be the form of internal screw thread, and certainly, the interconnecting piece can also be other forms, and the application is herein
Specific limit is not made.
In addition, threeway mechanism 20 can be set in the pressure-bearing pipe 1, which has and the pressure-bearing pipe 1
It connection and the first interface of the relatively close inlet opening 25, is relatively distant from the second interface of the inlet opening 25 and is held with described
The third interface that pressure pipe 1 bypasses, is provided with the first valve 19 on the third interface, the first interface to the inlet opening 25 it
Between be provided with the second valve 22.
In the present embodiment, the piston 5 is arranged in the housing 15, and entirety is in the cylinder type of variable diameters,
Its sectional area close to upper end can be greater than the sectional area close to lower end, so that 51 surface area of upper surface of the piston 5
Greater than its 52 surface area of lower end surface, when borehole pressure acts on the both ends of the piston 5 simultaneously, due to the surface area of upper surface 51
Greater than lower end surface 52, active force that upper surface 51 is subject to is greater than the active force that lower end surface 52 is subject to so that the piston 5 to
Lower movement, and then second level resetting-mechanism connected to it is driven integrally to move down.
In the present embodiment, the second level resetting-mechanism may include spring return mechanism and closing piece resetting-mechanism.
Wherein, the spring return mechanism may include：Upper pressing cap 6, spring 7, lower pressing cap 8.6 upper end of upper pressing cap
Inside is fixedly connected with the piston 5, and the inside of lower end is fixedly connected with the central cylinder, and the lower pressing cap 8 is resisted against
On the closing piece resetting-mechanism；The spring 7 is resisted against between the upper pressing cap 6 and lower pressing cap 8.
The closing piece resetting-mechanism may include：Closing piece 11, closing piece seat 10, wherein be arranged on the closing piece seat 10 useful
In the aperture for accommodating the closing piece 11；Garter spring 13 is provided on the excentric outside of back of the closing piece 11；The central cylinder
On closing piece slot 12 fasten with the closing piece 11, the closing piece resetting-mechanism is in the lock state, when the closing piece 11 is from institute
It states when being skidded off in closing piece slot 12, the closing piece resetting-mechanism is in the unlocked state.
The central cylinder may include upper fluid cylinder 9 and lower fluid cylinder 16.Wherein, the outside of the upper end of the upper fluid cylinder 9 with
The upper pressing cap 6 of the spring return mechanism is fixedly connected.Matched between the piston 5, upper fluid cylinder 9 and the upper pressing cap 6 by
The upper end closed of the upper fluid cylinder 9；The inside of the upper end of the lower fluid cylinder 16 is fixedly connected with the upper fluid cylinder 9, and lower end connects
It is connected to the baffle 26.
Specifically, the upper fluid cylinder 9 can be hollow tube body, external screw thread can be set on the outside of the upper end, wherein
The closing piece slot 12 can be set on the outer wall in portion, external screw thread can be set on the outside of lower end.
The internal screw thread to match with the external screw thread of the upper fluid cylinder 9 is provided on the inside of the upper end of the lower fluid cylinder 16；Its
Lower end is fixedly connected with baffle 26.
It is provided with size on the baffle 26 and is less than the sieve pore 27 for adjusting stifled ball 30.Specifically, when adjusting the straight of stifled ball 30
When diameter is 10 millimeters to 14 millimeters, the aperture of the sieve pore 27 can be 1 millimeter to 4 millimeters.
In addition, the ball-throwing apparatus can also include connecting cylinder 17, the whole connecting cylinder 17 is in hollow tube body, thereon
End is fixed on closing piece resetting-mechanism, and the other end is connected with the upper end of the pen cap 28.
Specifically, the upper end of the connecting cylinder 17 is fixedly connected by screw thread with the closing piece seat 10, lower end passes through spiral shell
Line is fixedly connected with the pen cap 28, is formed between the connecting cylinder 17 and the hoop 29 and is connected to the inlet opening 25
Annular space.Shaft bottom is hydraulic can be by the annular space after the inlet opening 25, into pressure-bearing pipe 1.
In the present embodiment, the pen cap 28 can be in hollow tube body, and the upper end is fixedly connected with the connecting cylinder 17,
Lower end is provided with pen tip 31.The baffle 26, the pen cap 28 and pen tip 31, which enclose, to be set in for accommodating the space for adjusting stifled ball 30.The pen
Point 31, baffle 26 can be connected with the central cylinder, and shaft bottom hydraulic energy is by the pen tip 31, into the pen cap 28 and lead to
The sieve pore 27 crossed on baffle 26 enters the central cylinder, to act on the lower end surface 52 of the piston 5.
In one embodiment, the pen tip 31 is rubber pen tip 31, and entirety is by multiple fanning strips between certain
The cone that gap surrounds, one end are fixedly connected with the pen cap 28, and the other end, which is formed, adjusts the opening for blocking up ball 30 for circulating, when
It is described to adjust stifled ball 30 that be forced out by the opening when baffle 26 moves down.Fig. 3 to Fig. 4 is please referred to, specifically,
The rubber pen tip 31 includes eight valve rubber, and figure section line part is rubber part.
In the present embodiment, the ball-throwing apparatus is additionally provided with multiple sealing rings 24, to meet the sealing performance of device.
Specifically, please referring to Fig. 1 and Fig. 2, sealing ring 24 can be set between the housing 15 and hose coupling 3, to prevent height
Press liquid is oozed out between the gap of the two.Sealing ring 24 can be set between the piston 5 and upper pressing cap 6, on described
Sealing ring 24 can be set between fluid cylinder 9 and the upper pressing cap 6, can have been set between the housing 15 and the upper pressing cap 6
It is equipped with sealing ring 24, sealing ring 24 can be set between the upper fluid cylinder 9 and the connecting cylinder 17；The housing 15 with
Sealing ring 24 can be set between the connecting cylinder 17, can be set between the housing 15 and the hoop 29 close
Seal 24.
In a specific embodiment, the ball-throwing apparatus includes external agency and internal mechanism, wherein described outer
Portion mechanism includes pressure-bearing pipe 1, threeway mechanism 20, the first valve 19, the second valve 22.The internal mechanism includes outer layer mechanism and internal layer
Mechanism, wherein outer layer mechanism includes hoop 29 and housing 15, is provided with inlet opening 25 on hoop 29, housing 15 then with pressure-bearing
The hose coupling 3 being arranged on pipe 1 is threadedly coupled, and material is thus formed the channels that formation fluid passes through.
Internal layer mechanism be provided with piston 5, upper pressing cap 6, spring 7, lower pressing cap 8, closing piece 11, closing piece seat 10, upper fluid cylinder 9, under
Fluid cylinder 16, connecting cylinder 17, baffle 26, the pen cap 28 and pen tip 31.Upper pressing cap 6 connects with piston 5 and 9 screw thread of upper fluid cylinder respectively
It connects, its inserting spring 7 between lower pressing cap 8.Connecting cylinder 17 is threadedly coupled with closing piece seat 10 and the pen cap 28.Lower fluid cylinder 16 with it is upper
Fluid cylinder 9 is threadedly coupled, and is provided with baffle 26 on lower fluid cylinder 16, multiple sieve pores 27 are provided on baffle 26.Usually adjust stifled ball 30
Diameter is 10-14mm, and in order to make to adjust stifled ball 30 to cannot be introduced into fluid cylinder, the aperture of sieve pore 27 can be 1mm-5mm.Adjust stifled ball 30
Placement space be made of pen container, pen tip 31 and baffle 26.Device is equipped with multiple sealing rings 24, meets the sealing performance of device.
When pitching, first stifled ball 30 will be adjusted to be placed in ball-throwing apparatus with pressure, hoop 29 is connect with well head test valve, it should
Device original state is as shown in Fig. 1.It closes the first valve 19 while opening the second valve 22, under bottom pressure effect, liquid stream one
Part enters pressure-bearing pipe 1 by inlet opening 25, then flows into, acts on the upper surface 51 of piston 5, another portion to 15 upper end of housing
Liquid separation stream enters fluid cylinder by sieve pore 27, acts on the lower end surface 52 of piston 5, under being greater than due to the forced area of upper surface 51
End face 52, under differential pressure action, piston 5 drives upper pressing cap 6 and upper fluid cylinder 9 to move down together, and upper pressing cap 6 is acted on by spring 7
Lower pressing cap 8 drives closing piece seat 10 to move down together；On the one hand upper fluid cylinder 9 drives lower fluid cylinder 16 to move down, on the other hand pass through closing piece 11
It drives closing piece seat 10 to move down, connecting cylinder 17, the pen cap 28 and pen tip 31 is driven to move down together.Lower pressing cap 8 is until encounter the first card
Slot 21 stops movement, and closing piece seat 10 continues to move down, until encountering the second card slot 23 stops movement.
Upper fluid cylinder 9 continues to move down, and squeezes 11 left end of closing piece, so that closing piece 11 is entered unlocked state, at this time the shape of ball-throwing apparatus
State is as shown in Fig. 2.Upper fluid cylinder 9 continues to move down with lower fluid cylinder 16, pushes baffle 26 to squeeze and adjusts stifled ball 30, stifled ball 30 is adjusted to strut pen
Point 31 and launch in well.
After launch process, the second valve 22 to be closed, opens the first valve 19, bottom pressure acts only on lower end surface 52,
It, by the head of liquid in pressure-bearing pipe 1, then pushes 5 uplink of piston much larger than upper surface 51, drives upper pressing cap 6, upper fluid cylinder
9, uplink, upper fluid cylinder 9 drive closing piece seat 10, connecting cylinder 17, the pen cap 28 and pen tip 31 uplink together, work as lock lower fluid cylinder 16 together
Block slot 12 is gradually drawn close to closing piece 11, and the pressure of spring 7 pushes lower pressing cap 88, to squeeze 11 right end of closing piece, while garter spring 13
There is the power of a left-hand to closing piece 11, so that closing piece 11 returns to closing piece slot 12, then, whole device slowly returns to initial position.
Ball-throwing apparatus described herein passes through in the external setting pressure-bearing pipe 1 of housing 15 and corresponding first valve 19, the
Corresponding resetting-mechanism is arranged in the inside of the housing 15, in use, by controlling first valve 19 and second in two valves 22
Corresponding pitching work can be realized in the opening and closing of valve 22, corresponding to switch the first valve after pitching without stopping water filling
19, the open and-shut mode of the second valve 22 can be realized under bottom pressure effect and automatically reset.Generally speaking, present apparatus structure is skilful
It is wonderful, it completes to launch the process adjusted stifled ball 30 and return to original state by bottom pressure, repeated multiple times can utilize, save throwing
Ball cost, while pitching process can be completed by not stopping water filling, simplify process flow.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.
The foregoing is merely several embodiments of the invention, although disclosed herein embodiment it is as above, institute
Content is stated only to facilitate the embodiment for understanding the present invention and using, is not intended to limit the present invention.Any institute of the present invention
Belong to those skilled in the art, do not depart from disclosed herein spirit and scope under the premise of, can be in embodiment
Formal and details on make any modification and variation, but scope of patent protection of the invention, still must be with appended claims
Subject to the range that book is defined.
Claims (10)
1. a kind of ball-throwing apparatus, which is characterized in that including：
Housing, the upper end of the housing are communicated with pressure-bearing pipe, and the lower end of the housing is fixed with hoop, the inside of the housing
Position close to lower end is axially disposed with the first card slot and the second card slot；Inlet opening is provided on the hoop；
The pressure-bearing pipe can be connected to the housing upper end and the inlet opening, be provided with fluid hole in the pressure-bearing pipe, it is described go out liquid
It is provided with the first valve on hole, the second valve is provided on the fluid hole to the pressure-bearing pipe between the inlet opening,
Piston in the housing is set, and the upper surface surface area of the piston is greater than its lower end surface surface area；
The second level resetting-mechanism being connect with the piston；The second level resetting-mechanism includes that spring return mechanism and closing piece reset machine
Structure；
The central cylinder that upper end and the spring return mechanism are fixed；It is provided on the lateral wall of the central cylinder and the lock
The closing piece slot that module resetting mechanism matches；The lower end of the central cylinder is provided with baffle, and it is small to be provided with size on the baffle
In the sieve pore for adjusting stifled ball；
The pen cap and pen tip, the pen cap and pen tip and the baffle fit are formed for placing the cavity for adjusting stifled ball；
When pitching, second valve is opened, closes first valve, under bottom pressure effect, the piston is moved down, band
It moves the second level resetting-mechanism to move down, the spring return mechanism stops moving down after being fastened on first card slot, described
Closing piece resetting-mechanism is unlocked after being fastened on second card slot；The central cylinder is mobile relative to the pen cap, to beat
Open the pen tip；
After pitching, second valve is closed, opens first valve, the second level resetting-mechanism is under bottom pressure effect
It automatically resets.
2. ball-throwing apparatus as described in claim 1, which is characterized in that further include connecting cylinder, the connecting cylinder is integrally in hollow
Tube body, the upper end is fixed on closing piece resetting-mechanism, and the other end is connected with the upper end of the pen cap.
3. ball-throwing apparatus as described in claim 1, which is characterized in that the spring return mechanism includes：Upper pressing cap, spring,
Lower pressing cap, wherein
The inside of the upper pressing cap upper end is fixedly connected with the piston, the inside of the upper pressing cap lower end and the central cylinder
It is fixedly connected,
The lower pressing cap is resisted against on the closing piece resetting-mechanism；
The spring is resisted against between the upper pressing cap and lower pressing cap.
4. ball-throwing apparatus as claimed in claim 3, which is characterized in that the central cylinder includes upper fluid cylinder and lower fluid cylinder,
In,
The outside of the upper end of the upper fluid cylinder is fixedly connected with the upper pressing cap of the spring return mechanism, and the piston, upper liquid
It is matched between cylinder and the upper pressing cap by the upper end closed of the upper fluid cylinder；
The inside of the upper end of the lower fluid cylinder is fixedly connected with the upper fluid cylinder, and the lower end of the lower fluid cylinder is connected with the gear
Plate.
5. ball-throwing apparatus as claimed in claim 2, which is characterized in that the closing piece resetting-mechanism includes：Closing piece, closing piece seat,
Wherein,
The aperture for accommodating the closing piece is provided on the closing piece seat；
The back of the closing piece is provided with garter spring on excentric outside；Closing piece slot on the central cylinder mutually blocks with the closing piece
It closes, the closing piece resetting-mechanism is in the lock state, and when the closing piece is skidded off from the closing piece slot, the closing piece resets machine
Structure is in the unlocked state.
6. ball-throwing apparatus as claimed in claim 5, which is characterized in that the upper end of the connecting cylinder passes through screw thread and the closing piece
Seat is fixedly connected, and the lower end of the connecting cylinder is fixedly connected by screw thread with the pen cap, the connecting cylinder and the hoop
Between be formed with the annular space being connected to the inlet opening.
7. ball-throwing apparatus as described in claim 1, which is characterized in that the pressure-bearing pipe and the upper end of the housing are additionally provided with
Hose coupling is provided with the interconnecting piece for cooperating with the hose coupling on the inside of the outer set upper side accordingly.
8. ball-throwing apparatus as described in claim 1, which is characterized in that the pen tip is rubber pen tip, and entirety is by multiple fans
The cone that shape piece is surrounded with certain gap, one end are fixedly connected with the pen cap, and the other end is formed to be blocked up for circulating to adjust
The opening of ball, it is described to adjust stifled ball that be forced out by the opening when the baffle moves down.
9. ball-throwing apparatus as described in claim 1, which is characterized in that the pressure-bearing pipe is hose, is arranged in the pressure-bearing pipe
There is a threeway mechanism, the threeway mechanism has to be connected to and the first interface of the relatively close inlet opening, phase with the pressure-bearing pipe
To the second interface far from the inlet opening and the third interface with pressure-bearing pipe bypass, correspondingly, first valve is arranged
On the third interface.
10. ball-throwing apparatus as described in any one of claim 1 to 9, which is characterized in that further include multiple sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070805.7A CN106837244B (en) | 2017-02-09 | 2017-02-09 | Ball throwing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070805.7A CN106837244B (en) | 2017-02-09 | 2017-02-09 | Ball throwing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837244A CN106837244A (en) | 2017-06-13 |
| CN106837244B true CN106837244B (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070805.7A Active CN106837244B (en) | 2017-02-09 | 2017-02-09 | Ball throwing device |
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| CN (1) | CN106837244B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112360418B (en) * | 2020-11-12 | 2023-02-10 | 中国石油天然气股份有限公司 | Combined fracturing wellhead ball throwing tool and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202954801U (en) * | 2012-11-16 | 2013-05-29 | 中国石油天然气股份有限公司 | Piston type gas well automatic foam-throwing volleyball device |
| US9447652B2 (en) * | 2013-07-17 | 2016-09-20 | Oil States Energy Services, L.L.C. | Atmosphere to pressure ball drop apparatus |
| CN204646206U (en) * | 2015-04-21 | 2015-09-16 | 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 |
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| CN106837244A (en) | 2017-06-13 |
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