CN106545310A - A kind of down-hole automatic ball-throwing ball seat - Google Patents
A kind of down-hole automatic ball-throwing ball seat Download PDFInfo
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- CN106545310A CN106545310A CN201510598435.5A CN201510598435A CN106545310A CN 106545310 A CN106545310 A CN 106545310A CN 201510598435 A CN201510598435 A CN 201510598435A CN 106545310 A CN106545310 A CN 106545310A
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- hole
- pitching
- ball
- ball seat
- pressure reduction
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Abstract
The present invention relates to a kind of down-hole automatic ball-throwing ball seat, including：Internal structure has the ball seat body of through hole；It is arranged on the intrinsic pitching locating part of the ball seat, the first hole is provided with the periphery wall of the pitching locating part, the pressure reduction pitching part being set on the periphery wall of the pitching locating part, the second hole is provided with the periphery wall of the pressure reduction pitching part, pitching component is provided with second hole, first hole position is in the lower section in second hole, wherein, when the pressure reduction pitching part is subject to external force, the pressure reduction pitching part is moved down, after first hole is connected with second hole, so that the part that sets in the pitching component drops into the ball seat originally in vivo to realize pitching operation.The automatic ball-throwing ball seat has the advantages that to realize automatic ball-throwing by adjusting discharge capacity.
Description
Technical field
The present invention relates to oil, natural gas, shale gas and CBM Drilling technical field, more particularly to it is a kind of
Down-hole automatic ball-throwing ball seat.
Background technology
At present, various drilling well down-holes ball seat is had been developed that both at home and abroad.
Down-hole ball seat of the prior art includes main body, ball seat body and lower contact.Main body lower end and lower contact spiral shell
Stricture of vagina connects, and body top is connected for female thread with undertaking body.In water injection well ground seperated layer water injection and oil, the pressure of well
Split, be acidified, squeezing during the treatment process tubing strings such as stifled and profile control go into the well, tubing string is lowered into into precalculated position
Afterwards, well head pitching, treats that ball is fallen on ball seat, and liquid feeding compression shear is broken shear pin, and ball is descending together with ball seat.
However, based on the analysis to above-mentioned prior art, ball seat of the prior art is present can only be carried out from well head
Artificial pitching and cannot automatic ball-throwing problem.
The content of the invention
For the problems referred to above, a kind of down-hole automatic ball-throwing ball seat is proposed according to the present invention, including：Internal structure
There is the ball seat body of through hole；The intrinsic pitching locating part of the ball seat is arranged on, in the pitching locating part
Periphery wall is provided with the first hole；The pressure reduction pitching part being set on the periphery wall of the pitching locating part, described
The periphery wall of pressure reduction pitching part is provided with the second hole, and pitching component, first hole are provided with second hole
Positioned at the lower section in second hole, wherein, when the pressure reduction pitching part is subject to external force, the pressure reduction pitching part
Move down, after first hole is connected with second hole, so that setting in the pitching component
Part drops into the ball seat originally in vivo to realize pitching operation.When automatic ball-throwing ball seat is lowered into the pre-determined bit of down-hole
Postpone needs carry out building the pressure operation when, by adjustment be injected into down-hole fluid discharge capacity size, realize
Size adjustment to acting on the pressure reduction on pressure reduction pitching part, for example can be by increasing discharge capacity so that be injected into
Fluid can cause the pressure reduction produced on two end faces up and down of pressure reduction pitching part to become when ball seat body is flowed through
Greatly, so as to, promote pressure reduction pitching part to move down under differential pressure action, after the first hole is connected with the second hole,
So that the part that sets in pitching component drops into ball seat sheet in vivo, so as to realize automatic ball-throwing operation.
Preferably, compartment is provided with multiple first holes on the periphery wall of the pitching locating part, in the pressure reduction
On the periphery wall of pitching part, compartment is provided with multiple second holes, and each first hole is respectively positioned on corresponding described second
The underface in hole.So, just improve the accuracy rate that first hole is connected with the second hole.
Preferably, the aperture for being located at each described first hole on the periphery wall of the pitching locating part is all higher than being located at
The hole in second hole on the periphery wall of the pressure reduction pitching part and being connected with corresponding first hole
Footpath.So, by causing the aperture in the first hole more than the aperture in the second hole, just greatly increase first hole
The probability being connected with the second hole, so as to improve the success rate of pitching.
Preferably, each first hole is configured to the port of export the first oblique hole directed downwardly, each second hole is equal
It is configured to the port of export the second oblique hole directed downwardly.So, resiliency urged part as described below elastic force and
Under the collective effect of the gravity of itself, just can will set part and be pushed into ball seat sheet in vivo, it is achieved thereby that throwing automatically
Ball operation.
Preferably, central shaft of the central axis in each first oblique hole with the corresponding second oblique hole
Line is parallel.So, it is to avoid as the downward-sloping angle of the first oblique hole deviation and the second oblique hole deviation dip down
Oblique angle disunity so that the first oblique hole cannot be connected with the second oblique hole, cause smoothly to throw
The drawbacks of ball.
Preferably, the automatic ball-throwing ball seat also includes being arranged on the intrinsic elastic supporting member for supporting optical member of the ball seat, institute
The one end for stating elastic supporting member for supporting optical member is connected with the diapire of the ball seat body, the other end and the pressure reduction pitching part
Diapire is connected to support the pressure reduction pitching part.In addition, automatic ball-throwing ball seat in this application enters the mistake of well
Cheng Zhong, can integrally produce downward acceleration, due to the setting of the elastic supporting member for supporting optical member, then pitching component can be produced
A raw support force upwards, so as to considerably reduce the probability of unexpected premature setting.
Preferably, the pitching component includes being arranged in second hole and in the resiliency urged of compressive state
Part, and one end abutted against with the resiliency urged part, the other end is offseted with the periphery wall of the pitching locating part
Part is set described in connecing.As can be seen here, now the resiliency urged part has laid in certain elastic potential energy, to connect down
The pitching operation for coming is ready.
Preferably, be configured with successively on the diapire of the ball seat body from top to bottom first set hole and with it is described
First sets second that hole is connected sets hole, wherein, the described first aperture for setting hole is sat more than described second
The aperture of sealing of hole.However, set hole due to being also additionally arranged first in the present invention, and this is caused first to set hole
The aperture aperture that sets hole more than second, by from ground to underground ball throwing so that ball drops into first and sets
In hole, it is achieved thereby that the sealing operation of pitching.So, just increase the success rate of pitching operation.
Preferably, the internal structure in the pitching locating part has fluid through-hole, the fluid through-hole and described
One sets hole is connected.
Preferably, when elastic force of the external force that the pressure reduction pitching part is subject to more than the elastic supporting member for supporting optical member, institute
State pressure reduction pitching part to move down, when first hole is connected with second hole, the part that sets is in institute
In the presence of stating resiliency urged part, enter into described second and set in hole.
Preferably, chute is configured with the internal perisporium of the upper end of the pressure reduction pitching part, it is spacing in the pitching
The periphery wall of part is provided with the slide block being engaged with the chute.So, just so that pressure reduction pitching part is limited with pitching
Position part circumferentially will not relatively rotate.
According to the present invention, the automatic ball-throwing ball seat has can realize the excellent of automatic ball-throwing by adjusting discharge capacity
Point, further, also with requirement of other ball seats to the latus rectum size of top BHA is avoided, i.e., does not receive
The impact of the combination factor such as latus rectum size and hole angle size.
In addition, success rate that the automatic ball-throwing ball seat is also set with pitching is high, bearing capacity is high, be easy to milling
And disclosure satisfy that the advantage of the down-hole application requirement of multiple types of tools.
Description of the drawings
Hereinafter the present invention will be described in more detail based on embodiment refer to the attached drawing.In figure
In：
Overall structure diagrams of the Fig. 1 for the automatic ball-throwing ball seat of embodiments herein.
Overall structure diagrams of the Fig. 2 for the pressure reduction pitching part of the automatic ball-throwing ball seat of embodiments herein.
Overall structure diagrams of the Fig. 3 for the pitching locating part of the automatic ball-throwing ball seat of embodiments herein.
Fig. 4 carries out the structural representation after automatic ball-throwing for the automatic ball-throwing ball seat of embodiments herein.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not retouched according to actual ratio
Paint.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 4, Fig. 1 show schematically show the automatic ball-throwing ball seat 100 includes ball seat body
1st, pitching locating part 2, pitching component 3 and pressure reduction pitching part 4.
In embodiments herein, there is through hole 11 in the internal structure of the ball seat body 1.The ball seat body 1
Bottom inner section be configured to bore section, be provided with screw thread (female thread or outer spiral shell in the upper end of the ball seat body 1
Stricture of vagina), to be connected with other instruments.
The pitching locating part 2 is substantially cylindrical in shape, and which is arranged on the inside of ball seat body 1.In the pitching locating part
2 periphery wall 21 is provided with the first hole 211.
In one embodiment, the mode that the bottom of the pitching locating part 2 can be threaded connection is fixed on ball seat
It is fixed on the diapire 12 of ball seat body 1 on the diapire 12 of body 1 or by jump ring.
The pressure reduction pitching part 4 is set on the periphery wall 21 of pitching locating part 2, in the outer of pressure reduction pitching part 4
Perisporium 41 is provided with the second hole 411, is provided with pitching component 3,211, first hole in second hole 411
In the lower section in the second hole 411, wherein, when pressure reduction pitching part 4 is subject to external force, pressure reduction pitching part 4 is to moving down
It is dynamic, after the first hole 211 is connected with the second hole 411, so that the part 32 that sets in pitching component 3 falls
Enter in ball seat body 1 to realize automatic ball-throwing operation.Specifically, due to the through hole 11 in ball seat body 1
Aperture more than the fluid through-hole 22 as described below in pitching locating part 2 aperture.Therefore, when throwing automatically
Ball ball seat 100 need to carry out building the pressure after being lowered into the precalculated position of down-hole operation when, by adjustment be injected into well
Under fluid discharge capacity size, realize the size adjustment to acting on the pressure reduction on pressure reduction pitching part 4, example
Such as by increase discharge capacity so that the fluid being injected into can be caused in pressure reduction pitching when ball seat body 1 is flowed through
The pressure reduction produced on two end faces up and down of part 4 becomes big, so as to, under differential pressure action, promote pressure reduction pitching part 4
Move down, after the first hole 211 is connected with the second hole 411, so that setting part in pitching component 3
32 drop in ball seat body 1, so as to realize automatic ball-throwing operation.
In one embodiment, the specific size of discharge capacity can be adjusted accordingly according to practical situation.In this Shen
In embodiment please, the discharge capacity can be 25 liters/second.
In one embodiment, it can be copper ball that this sets part 32.
As shown in Figures 2 and 3, in a preferred embodiment, in the periphery wall 21 of pitching locating part 2
Upper compartment is provided with multiple first holes 211, and on the periphery wall 41 of pressure reduction pitching part 4, compartment is provided with multiple
Two holes 411, each first hole 211 are respectively positioned on the underface in corresponding second hole 411.I.e. each first hole 211 is equal
Positioned at the underface in coupled the second logical hole 411.So, first hole 211 and the second hole are just improve
The accuracy rate of 411 connections.Further, it is easy to set part 32 to drop in ball seat body 1 to carry out after pitching
Set.Further, since the first hole 211 and the second hole 411 being connected with the first hole 211 be disposed as it is many
Group, such that it is able to the sealing needs according to down-hole, carries out multiple pitching, increases the automatic ball-throwing ball seat 100
Range of application.
As shown in figure 3, in a preferred embodiment, it is located on the periphery wall 21 of pitching locating part 2
It is on the periphery wall 41 that the aperture in each first hole 211 is all higher than arrange pressure reduction pitching part 4 and with corresponding first
The aperture in the second hole 411 that hole 211 is connected.So, it is more than second by causing the aperture in the first hole 211
The aperture in hole 411, just greatly increases the probability that first hole 211 is connected with the second hole 411, so as to
The success rate of pitching is improve, that is, avoid the aperture in the second hole 411 being less than due to the aperture in first hole 211,
So that set the inside that part 32 cannot smoothly enter ball seat body 1, cause cannot pitching the drawbacks of.
In another embodiment, the aperture in first hole 211 is equal to the aperture in the second hole 411.
As described in Figure 1, in a preferred embodiment, each first hole 211 is configured to 213 court of the port of export
Under the first oblique hole 200, each second hole 411 is configured to 412 directed downwardly second oblique hole 400 of the port of export.
So, under the collective effect of the elastic force and the gravity of itself of resiliency urged part 31 as described below, just
Can will set part 32 to be pushed in ball seat body 1, it is achieved thereby that automatic ball-throwing operation.Thus just improve
Automatic ball-throwing ball seat 100 carries out the success rate that pitching sets in lower curved section or net horizontal section.
In a preferred embodiment, the central axis in each first oblique hole 200 is oblique with corresponding second
The central axis in hole 400 is parallel.So, it is to avoid due to the first oblique hole 200 obliquely inclined angle with
Second oblique hole 400 inclined angle disunity obliquely so that the first oblique hole 200 cannot be oblique with second
Be connected to hole 400, cause cannot smoothly pitching the drawbacks of.
In one embodiment, first hole 211 and the second hole 411 can be lateral aperture.
As depicted in figs. 1 and 2, in another embodiment, the central axis in the first oblique hole 200 and stream
Tip the first angle theta directed downwardly, the size model of first angle theta are formed between the central axis of body through hole 42
Enclose is more than or equal to 20 degree and less than or equal to 60 degree.Preferably, first angle theta is 30 degree.So,
It is easy to guide this to set part 32 and drop in ball seat body 1, realizes automatic ball-throwing operation.
As shown in figure 1, in a preferred embodiment, the automatic ball-throwing ball seat 100 also includes being arranged on ball
Elastic supporting member for supporting optical member 5 in seat body 1, one end of the elastic supporting member for supporting optical member 5 and 12 phase of diapire of ball seat body 1
Connection, the other end are connected to support pressure reduction pitching part 4 with the diapire 43 of pressure reduction pitching part 4.Specifically, exist
Under the action of gravity of pressure reduction pitching part 4, state of the elastic supporting member for supporting optical member 5 in being compressed can be caused, i.e., so that should
One end of elastic supporting member for supporting optical member 5 is fixedly installed on the diapire 12 of ball seat body 1, the other end and pressure reduction pitching part 4
Diapire 43 abut against.
In a specific embodiment, one end of the elastic supporting member for supporting optical member 5 can be threaded connection or weld etc.
Mode is fixed on the diapire 12 of ball seat body 1.
In addition, the elastic supporting member for supporting optical member 5 is due to certain elasticity, thus, can be in the work of pressure reduction pitching part 4
With under, longitudinal reciprocating motion is carried out.I.e. when automatic ball-throwing ball seat 100 is lowered into the precalculated position needs of down-hole
Carry out building the pressure operation when, by increase discharge capacity so that the fluid being injected into when ball seat body 1 is flowed through, can exist
Pressure reduction is produced on two end faces up and down of pressure reduction pitching part 4, so as to promote pressure reduction pitching part 4 to move downward, is entered
One step ground elasticity of compression support member 5 is moved downward.When first hole 211 is connected with the second hole 411, sit
Sealing 32 can drop into the bottom of ball seat body 1, realize automatic ball-throwing.However, dropping into part 32 is set
Behind the bottom of ball seat body 1, elastic supporting member for supporting optical member 5 can be returned to original in the presence of natural resiliency restoring force
Position.It is when pitching operation is carried out again, just so that the elastic supporting member for supporting optical member 5 is compressed again, then extensive again
It is multiple to arrive original position.As can be seen here, the elastic supporting member for supporting optical member 5 can move back and forth in the case where pressure reduction pitching part 4 is acted on.
In embodiments herein, the elastic supporting member for supporting optical member 5 can be spring or other parts with spring function.
In a preferred embodiment, the pitching component 3 includes being arranged in the second hole 411 and in compression
The resiliency urged part 31 of state, and one end and resiliency urged part 31 abut against the other end and pitching locating part 2
Periphery wall abut against set part 32.Specifically, when pitching operation is not carried out, the outlet in the second hole 411
End 412 is blocked by the periphery wall 21 of pitching locating part 2, so, just so that setting part 32 is blocked in the second hole
In 411, so that state of the resiliency urged part 31 in compression.As can be seen here, the now resiliency urged part
31 have laid in certain elastic potential energy, are that ensuing pitching operation is ready.
In one embodiment, the resiliency urged part 31 can be spring or other parts with spring function.
As shown in figure 1, in a preferred embodiment, on the diapire 12 of ball seat body 1 from top to bottom
Be configured with successively first set hole 13 and with this first set that hole 13 is connected second set hole 14, wherein,
First aperture for setting hole 13 sets the aperture in hole 14 more than second.The purpose of so design is, when setting
When part 32 drops into second and sets in hole 14, if set in hole 14 second having silt, may deposit
Sealing effectiveness is bad and the not high problem of bearing capacity.However, in the present invention due to being also additionally arranged the first seat
Sealing of hole 13, and cause first aperture for setting hole 13 that the aperture in hole 14 is set more than second, by from ground
To underground ball throwing so that ball drops into first and sets in hole 13, it is achieved thereby that the sealing operation of pitching.This
Sample, just increases the success rate of pitching operation.
As shown in figure 3, in a preferred embodiment, fluid leads in the internal structure of pitching locating part 2
Hole 22, the fluid through-hole 22 set hole 13 with first and are connected.So, during just may be implemented in down,
Fluid is flowed in tubing string from annular space, keeps the inside and outside differential pressure balance of tubing string, meanwhile, do not carrying out pitching operation
When, a fixed displacement circulation can also be carried out, the generation of down hole problem is reduced.
In a preferred embodiment, when the external force that the pressure reduction pitching part 4 is subject to is more than elastic supporting member for supporting optical member 5
During elastic force, pressure reduction pitching part 4 is moved down, and when the first hole 211 is connected with the second hole 411, is set
Part 32 in the presence of the elastic force of its own gravity and resiliency urged part 31 enters into second and sets hole 14
It is interior.As can be seen here, due to originally when pitching operation is not carried out, setting part 32 by the outer of pitching locating part 2
Perisporium 21 is blocked, so that the resiliency urged part 31 is in compressive state.However, when the first hole 211
When being connected with the second hole 411, part 32 is set due to losing blocking for periphery wall 21, now, then by bullet
The elastic force of property impeller 31, just this can be set part 32 releases from the second hole 411, and the first holes of Jing 211
Drop in ball seat body 1 second to set in hole 14, to realize automatic ball-throwing operation.
In a preferred embodiment, chute is configured with the internal perisporium 44 of the upper end of pressure reduction pitching part 4
441, the slide block 23 being engaged with chute 441 is provided with the periphery wall 21 of pitching locating part 2.So, just
So that pressure reduction pitching part 4 circumferentially will not be relatively rotated with pitching locating part 2.Further, since slide block 23
Setting, be subject to external force and when moving downward in pressure reduction pitching part 4, the upper end of the pressure reduction pitching part 4 gradually with
The bottom of slide block 23 is separated, meanwhile, the decrement of elastic supporting member for supporting optical member 5 gradually increases.When completing automatically throwing
After ball, the pressure reduction pitching part 4 can be in the presence of natural resiliency restoring force, and gradually the direction towards slide block 23 is moved
It is dynamic.When the upper surface of the pressure reduction pitching part 4 is fitted with the lower surface of slide block 23, the elastic supporting member for supporting optical member 5
Stopping is moved up.As can be seen here, the setting of the slide block 23, serves and pressure reduction pitching part 4 is moved up
Maximum displacement restriction effect.
In sum, the automatic ball-throwing ball seat 100 has and can realize the excellent of automatic ball-throwing by adjusting discharge capacity
Point, further, also with requirement of other ball seats to the latus rectum size of top BHA is avoided, i.e., does not receive
The impact of the combination factor such as latus rectum size and hole angle size.
In addition, success rate that the automatic ball-throwing ball seat 100 is also set with pitching is high, bearing capacity is high, be easy to
Milling and disclosure satisfy that multiple types of tools down-hole application require advantage.
Although by reference to preferred embodiment, invention has been described, without departing from the scope of the present invention
In the case of, various improvement can be carried out to which and part therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment can have been combined in any way
Come.The invention is not limited in specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical schemes.
Claims (11)
1. a kind of down-hole automatic ball-throwing ball seat, including：
Internal structure has the ball seat body of through hole；
The intrinsic pitching locating part of the ball seat is arranged on, is provided with the periphery wall of the pitching locating part
One hole；
The pressure reduction pitching part being set on the periphery wall of the pitching locating part, in the periphery of the pressure reduction pitching part
Wall is provided with the second hole, and pitching component is provided with second hole, and first hole position is in second hole
Lower section, wherein, when the pressure reduction pitching part is subject to external force, the pressure reduction pitching part is moved down, when described
After first hole is connected with second hole, so that the part that sets in the pitching component drops into the ball seat
This is in vivo realizing pitching operation.
2. automatic ball-throwing ball seat in down-hole according to claim 1, it is characterised in that spacing in the pitching
On the periphery wall of part, compartment is provided with multiple first holes, and on the periphery wall of the pressure reduction pitching part, compartment is provided with
Multiple second holes, each first hole are respectively positioned on the underface in corresponding second hole.
3. automatic ball-throwing ball seat in down-hole according to claim 2, it is characterised in that be located at the pitching limit
The aperture in each described first hole on the periphery wall of position part is all higher than being located on the periphery wall of the pressure reduction pitching part
And the aperture in second hole that is connected with corresponding first hole.
4. automatic ball-throwing ball seat in down-hole according to claim 3, it is characterised in that each first hole is equal
It is configured to the port of export the first oblique hole directed downwardly, it is directed downwardly second oblique that each second hole is configured to the port of export
Hole.
5. automatic ball-throwing ball seat in down-hole according to claim 4, it is characterised in that each described first is oblique
The central axis in hole is parallel with the central axis in the corresponding second oblique hole.
6. automatic ball-throwing ball seat in down-hole according to claim 1, it is characterised in that the automatic ball-throwing ball
Seat also includes being arranged on the intrinsic elastic supporting member for supporting optical member of the ball seat, one end of the elastic supporting member for supporting optical member and the ball
The diapire of seat body is connected, and the other end is connected to support the pressure reduction to throw with the diapire of the pressure reduction pitching part
Ball element.
7. automatic ball-throwing ball seat in down-hole according to claim 6, it is characterised in that the pitching component bag
Include and be arranged in second hole and in the resiliency urged part of compressive state, and one end and the resiliency urged
Part is abutted against, the periphery wall of the other end and the pitching locating part abut against described in set part.)
8. automatic ball-throwing ball seat in down-hole according to claim 7, it is characterised in that in the ball seat body
Diapire on be configured with first from top to bottom successively and set hole and set the second seat that hole is connected with described first
Sealing of hole, wherein, the described first aperture for setting hole sets the aperture in hole more than described second.
9. automatic ball-throwing ball seat in down-hole according to claim 8, it is characterised in that spacing in the pitching
The internal structure of part has fluid through-hole, and the fluid through-hole sets hole with described first and is connected.
10. automatic ball-throwing ball seat in down-hole according to claim 8, it is characterised in that when the pressure reduction is thrown
When the external force that ball element is subject to is more than the elastic force of the elastic supporting member for supporting optical member, the pressure reduction pitching part is moved down, when
When first hole is connected with second hole, the part that sets enters in the presence of the resiliency urged part
Enter to described second and set in hole.
11. automatic ball-throwing ball seats in down-hole according to claim 1, it is characterised in that throw in the pressure reduction
Chute is configured with the internal perisporium of the upper end of ball element, is provided with the periphery wall of the pitching locating part and the cunning
The slide block that groove is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598435.5A CN106545310B (en) | 2015-09-18 | 2015-09-18 | A kind of underground automatic ball-throwing ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598435.5A CN106545310B (en) | 2015-09-18 | 2015-09-18 | A kind of underground automatic ball-throwing ball seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106545310A true CN106545310A (en) | 2017-03-29 |
| CN106545310B CN106545310B (en) | 2019-02-15 |
Family
ID=58362486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510598435.5A Active CN106545310B (en) | 2015-09-18 | 2015-09-18 | A kind of underground automatic ball-throwing ball seat |
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| Country | Link |
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| CN (1) | CN106545310B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476795A (en) * | 2017-10-17 | 2017-12-15 | 西南石油大学 | A kind of multistage hydraulic control pressure break ball-throwing apparatus that sorts certainly |
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| CN102454380A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Device for automatically throwing ball into water hole of drilling tool |
| CN203742510U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Unbalanced drilling coring ball-throwing device |
| CN103982153A (en) * | 2014-05-30 | 2014-08-13 | 四机赛瓦石油钻采设备有限公司 | Ball injecting de-blocking hydraulic tubing anchor |
| CN204200133U (en) * | 2014-09-27 | 2015-03-11 | 中国石油化工集团公司 | A kind of drilling and coring delivery ball-throwing apparatus |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1132565A2 (en) * | 2000-03-09 | 2001-09-12 | Halliburton Energy Services, Inc. | Method and apparatus for downhole ball drop |
| CN2611595Y (en) * | 2003-01-17 | 2004-04-14 | 中国石化胜利油田有限公司采油工艺研究院 | Layering pumping unit |
| CA2625155A1 (en) * | 2007-03-13 | 2008-09-13 | Bbj Tools Inc. | Ball release procedure and release tool |
| CN102454380A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Device for automatically throwing ball into water hole of drilling tool |
| CN203742510U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Unbalanced drilling coring ball-throwing device |
| CN103982153A (en) * | 2014-05-30 | 2014-08-13 | 四机赛瓦石油钻采设备有限公司 | Ball injecting de-blocking hydraulic tubing anchor |
| CN204200133U (en) * | 2014-09-27 | 2015-03-11 | 中国石油化工集团公司 | A kind of drilling and coring delivery ball-throwing apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107476795A (en) * | 2017-10-17 | 2017-12-15 | 西南石油大学 | A kind of multistage hydraulic control pressure break ball-throwing apparatus that sorts certainly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545310B (en) | 2019-02-15 |
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