CN106545310B - A kind of underground automatic ball-throwing ball seat - Google Patents
A kind of underground automatic ball-throwing ball seat Download PDFInfo
- Publication number
- CN106545310B CN106545310B CN201510598435.5A CN201510598435A CN106545310B CN 106545310 B CN106545310 B CN 106545310B CN 201510598435 A CN201510598435 A CN 201510598435A CN 106545310 B CN106545310 B CN 106545310B
- Authority
- CN
- China
- Prior art keywords
- hole
- pitching
- ball seat
- pressure difference
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of underground automatic ball-throwing ball seats, comprising: internal structure has the ball seat ontology of through-hole；It is arranged in the intrinsic pitching locating part of the ball seat, the first hole is equipped on the periphery wall of the pitching locating part, the pressure difference pitching part being set on the periphery wall of the pitching locating part, the second hole is equipped on the periphery wall of the pressure difference pitching part, pitching component is equipped in second hole, first hole is located at the lower section in second hole, wherein, when the pressure difference pitching part is by external force, the pressure difference pitching part moves down, after first hole is connected with second hole, so that the part that sets in the pitching component drops into the ball seat ontology to realize pitching operation.The automatic ball-throwing ball seat has the advantages that realize automatic ball-throwing by adjusting discharge capacity.
Description
Technical field
The present invention relates to petroleum, natural gas, shale gas and CBM Drilling technical field more particularly to a kind of undergrounds certainly
Dynamic pitching ball seat.
Background technique
Currently, having been developed that a variety of drilling well undergrounds ball seat both at home and abroad.
Underground ball seat in the prior art includes main body, ball seat ontology and lower contact.Lower body and lower contact screw thread connect
It connects, body top is that internal screw thread is connect with undertaking body.In water injection well seperated layer water injection and oil, the pressure break of well, acidification, squeeze it is stifled with
And during the treatment process tubing string such as profile control is gone into the well, after tubing string is lowered into predetermined position, well head pitching falls into ball seat to ball
On, liquid feeding compression shear is broken shear pin, ball downlink together with ball seat.
However, ball seat in the prior art exists and can only carry out manually from well head based on the analysis to the above-mentioned prior art
Pitching and can not automatic ball-throwing the problem of.
Summary of the invention
In view of the above-mentioned problems, proposing a kind of underground automatic ball-throwing ball seat according to the present invention, comprising: internal structure has through-hole
Ball seat ontology；It is arranged in the intrinsic pitching locating part of the ball seat, the is equipped on the periphery wall of the pitching locating part
One hole；The pressure difference pitching part being set on the periphery wall of the pitching locating part, sets on the periphery wall of the pressure difference pitching part
There is the second hole, pitching component is equipped in second hole, first hole is located at the lower section in second hole, wherein works as institute
When stating pressure difference pitching part by external force, the pressure difference pitching part is moved down, when first hole is connected with second hole
Afterwards, so that the part that sets in the pitching component drops into the ball seat ontology to realize pitching operation.Work as automatic ball-throwing
Ball seat is lowered into behind the predetermined position of underground when build the pressure operation, by adjusting the discharge capacity for the fluid for being injected into underground
Size, to realize the big minor adjustment to the pressure difference acted on pressure difference pitching part, such as can be by increasing discharge capacity, so that by infusing
The fluid entered can make the pressure difference generated on two end faces up and down of pressure difference pitching part become larger when flowing through ball seat ontology, from
And under differential pressure action, push pressure difference pitching part to move down, after the first hole is connected with the second hole, so that pitching component
In the part that sets drop into ball seat ontology, to realize automatic ball-throwing operation.
Preferably, compartment is equipped with multiple first holes on the periphery wall of the pitching locating part, in the pressure difference pitching
Compartment is equipped with multiple second holes on the periphery wall of part, and each first hole is respectively positioned on the underface in corresponding second hole.
In this way, just improving the accuracy rate that first hole is connected to the second hole.
Preferably, the aperture in each first hole being located on the periphery wall of the pitching locating part be all larger than be located at it is described
The aperture in second hole that is on the periphery wall of pressure difference pitching part and being connected with corresponding first hole.In this way, passing through
So that the aperture in the first hole is greater than the aperture in the second hole, the probability that first hole is connected with the second hole is just greatly increased,
To improve the success rate of pitching.
Preferably, each first hole is configured to outlet end the first oblique hole directed downwardly, each second hole is constructed
For outlet end the second oblique hole directed downwardly.In this way, in the elastic force and the gravity of itself of resiliency urged part as described below
Under collective effect, it can will set part and be pushed into ball seat ontology, to realize automatic ball-throwing operation.
Preferably, the central axis of each first oblique hole with the central axis phase of corresponding second oblique hole
In parallel.In this way, avoid due to the first oblique hole obliquely inclined angle with the second oblique hole inclined angle is not united obliquely
One, so that first oblique hole can not be connected with the second oblique hole, cause the drawbacks of can not be successfully pitching.
Preferably, the automatic ball-throwing ball seat further includes being arranged in the intrinsic elastic supporting member for supporting optical member of the ball seat, the bullet
One end of property supporting element is connected with the bottom wall of the ball seat ontology, the other end be connected with the bottom wall of the pressure difference pitching part with
Support the pressure difference pitching part.In addition, can integrally be generated downward during automatic ball-throwing ball seat in this application enters well
Acceleration then can generate a upward support force to pitching component, to greatly subtract due to the setting of the elastic supporting member for supporting optical member
The probability of unexpected premature setting is lacked.
Preferably, the pitching component includes the resiliency urged part for being arranged in second hole and being in compressive state,
And one end is abutted against with the resiliency urged part, what the periphery wall of the other end and the pitching locating part abutted against described sets
Part.It can be seen that the resiliency urged part has laid in certain elastic potential energy at this time, it is ready for next pitching operation.
Preferably, being successively configured with first from top to bottom on the bottom wall of the ball seat ontology sets hole and with described first
It sets hole is connected second and sets hole, wherein the described first aperture for setting hole is greater than the described second aperture for setting hole.So
And hole is set due to being also additionally arranged first in the present invention, and make first aperture for setting hole be greater than second and set hole
Aperture, by being set in hole so that ball drops into first from ground to underground ball throwing, to realize the sealing operation of pitching.
In this way, just increasing 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 first are sat
Sealing of hole is connected.
Preferably, when the external force that the pressure difference pitching part is subject to is greater than the elastic force of the elastic supporting member for supporting optical member, the pressure
Poor pitching part moves down, and when first hole is connected with second hole, the part that sets is in the resiliency urged part
Under the action of, it enters described second and sets in hole.
Preferably, sliding slot is configured on the internal perisporium of the upper end of the pressure difference pitching part, in the pitching locating part
Periphery wall is equipped with the sliding block matched with the sliding slot.In this way, just making pressure difference pitching part and pitching locating part will not be along week
To relatively rotating.
According to the present invention, which has the advantages that realize automatic ball-throwing by adjusting discharge capacity, into
One step also has and avoids requirement of other ball seats to the latus rectum size of top drill assembly, i.e., not by combination latus rectum size and
The influence of the factors such as hole angle size.
In addition, the success rate that also there is the automatic ball-throwing ball seat pitching to set is high, bearing capacity is high, is easy to milling and energy
The advantages of enough meeting the down-hole application requirement of multiple types of tools.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.In figure:
Fig. 1 is the overall structure diagram of the automatic ball-throwing ball seat of embodiments herein.
Fig. 2 is the overall structure diagram of the pressure difference pitching part of the automatic ball-throwing ball seat of embodiments herein.
Fig. 3 is the overall structure diagram of the pitching locating part of the automatic ball-throwing ball seat of embodiments herein.
Fig. 4 is that the automatic ball-throwing ball seat of embodiments herein carries out the structural schematic diagram after automatic ball-throwing.
In the accompanying drawings, identical component uses identical appended drawing reference.Attached drawing is not according to actual scaling.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1 and Figure 4, Fig. 1 schematically shows that the automatic ball-throwing ball seat 100 includes ball seat ontology 1, pitching limit
Position part 2, pitching component 3 and pressure difference pitching part 4.
In embodiments herein, there is through-hole 11 in the internal structure of the ball seat ontology 1.The bottom end of the ball seat ontology 1
Inner section be configured to cone section, the upper end of the ball seat ontology 1 be equipped with screw thread (internal screw thread or external screw thread), so as to other works
Tool connection.
The pitching locating part 2 is substantially cylindrical in shape, and the inside of ball seat ontology 1 is arranged in.In the periphery of the pitching locating part 2
Wall 21 is equipped with the first hole 211.
In one embodiment, the mode that the bottom end of the pitching locating part 2 can be connected through a screw thread is fixed on ball seat ontology 1
Bottom wall 12 on or be fixed on the bottom wall 12 of ball seat ontology 1 by circlip.
The pressure difference pitching part 4 is set on the periphery wall 21 of pitching locating part 2, on the periphery wall 41 of pressure difference pitching part 4
Equipped with the second hole 411, pitching component 3 is equipped in second hole 411, which is located at the lower section in the second hole 411,
In, when pressure difference pitching part 4 is by external force, pressure difference pitching part 4 is moved down, when the first hole 211 is connected with the second hole 411
Afterwards, so that the part 32 that sets in pitching component 3 drops into ball seat ontology 1 to realize automatic ball-throwing operation.Specifically, due to
The aperture of through-hole 11 in ball seat ontology 1 is greater than the aperture of the fluid through-hole 22 as described below in pitching locating part 2.Therefore,
Build the pressure after automatic ball-throwing ball seat 100 is lowered into the predetermined position of underground operation when, by adjusting well is injected into
Under fluid discharge capacity size, to realize the big minor adjustment to the pressure difference acted on pressure difference pitching part 4, such as increasing can be passed through
Huge discharge, so that the fluid injected when flowing through ball seat ontology 1, can make on two end faces up and down of pressure difference pitching part 4
The pressure difference of generation becomes larger, to push pressure difference pitching part 4 to move down, when the first hole 211 and the second hole under differential pressure action
After 411 are connected, so that the part 32 that sets in pitching component 3 drops into ball seat ontology 1, to realize that automatic ball-throwing is made
Industry.
In one embodiment, the specific size of discharge capacity can be adjusted accordingly according to the actual situation.The application's
In embodiment, which can be 25 liters/second.
In one embodiment, it can be copper ball that this, which sets part 32,.
As shown in Figures 2 and 3, in a preferred embodiment, compartment is set on the periphery wall 21 of pitching locating part 2
There are multiple first holes 211, compartment is equipped with multiple second holes 411, each first hole 211 on the periphery wall 41 of pressure difference pitching part 4
It is respectively positioned on the underface in corresponding second hole 411.I.e. each first hole 211 be respectively positioned on coupled the second logical hole 411 just under
Side.In this way, just improving the accuracy rate that first hole 211 is connected to the second hole 411.Further, it is fallen into convenient for setting part 32
To carry out setting after pitching in ball seat ontology 1.In addition, due to the first hole 211 and the second hole being connected with the first hole 211
411 are disposed as multiple groups, so as to carry out multiple pitching according to the sealing needs of underground, increase the automatic ball-throwing ball seat
100 application range.
As shown in figure 3, in a preferred embodiment, being located at each first hole on the periphery wall 21 of pitching locating part 2
211 aperture is all larger than the second hole that is on the periphery wall 41 of setting pressure difference pitching part 4 and being connected with corresponding first hole 211
411 aperture.In this way, by making the aperture in the first hole 211 be greater than the aperture in the second hole 411, just greatly increase this
The probability that one hole 211 is connected with the second hole 411 avoids to improve the success rate of pitching due to first hole 211
Aperture is less than the aperture in the second hole 411, so that setting the inside that part 32 enters ball seat ontology 1 in which can not be successfully, causing can not
The drawbacks of pitching.
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 outlet end 212 directed downwardly first
Oblique hole 200, each second hole 411 are configured to outlet end the second oblique hole 400 directed downwardly.In this way, in elasticity as described below
Under the elastic force of impeller 31 and the collective effect of the gravity of itself, it can will set part 32 and be pushed into ball seat ontology 1, from
And realize automatic ball-throwing operation.Thus it just improves automatic ball-throwing ball seat 100 and carries out pitching seat in lower curved section or net horizontal section
The success rate of envelope.
In a preferred embodiment, the central axis of each first oblique hole 200 with corresponding second oblique hole 400
Central axis it is parallel.In this way, avoiding since inclined angle and the second oblique hole 400 are oblique obliquely for the first oblique hole 200
The angle disunity tilted down, so that first oblique hole 200 can not be connected with the second oblique hole 400, causing can not be suitable
The drawbacks of sharp pitching.
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 Yu fluid through-hole 42 of first oblique hole 200
Central axis between form tip the first angle theta directed downwardly, the magnitude range of first angle theta be more than or equal to 20 degree and
Less than or equal to 60 degree.Preferably, which is 30 degree.In this way, dropping into ball seat ontology 1 convenient for guiding this to set part 32
It is interior, realize automatic ball-throwing operation.
As shown in Figure 1, in a preferred embodiment, which further includes being arranged in ball seat ontology 1
Interior elastic supporting member for supporting optical member 5, one end of the elastic supporting member for supporting optical member 5 are connected with the bottom wall 12 of ball seat ontology 1, and the other end and pressure difference are thrown
The bottom wall 43 of ball element 4 is connected to support pressure difference pitching part 4.Specifically, under the gravity of pressure difference pitching part 4, can make
Elastic supporting member for supporting optical member 5 is in compressed state, i.e., so that one end of the elastic supporting member for supporting optical member 5 is fixed at the bottom of ball seat ontology 1
On wall 12, the bottom wall 43 of the other end and pressure difference pitching part 4 is abutted against.
In a specific embodiment, the mode that one end of the elastic supporting member for supporting optical member 5 can be connected through a screw thread or weld etc.
It is fixed on the bottom wall 12 of ball seat ontology 1.
In addition, the elastic supporting member for supporting optical member 5 is due to certain elasticity, thus, can under the action of pressure difference pitching part 4, into
The longitudinal reciprocating motion of row.I.e. when the predetermined position that automatic ball-throwing ball seat 100 is lowered into underground build the pressure operation, lead to
Increase discharge capacity is crossed, so that the fluid injected, when flowing through ball seat ontology 1, meeting is on two end faces up and down of pressure difference pitching part 4
Pressure difference is generated, so that pressure difference pitching part 4 be promoted to move downward, further elasticity of compression supporting element 5 is moved downward.When this first
When hole 211 is connected with the second hole 411, the bottom of ball seat ontology 1 can be dropped by setting part 32, realize automatic ball-throwing.However,
It sets after part 32 drops into the bottom of ball seat ontology 1, elastic supporting member for supporting optical member 5 can be restored under the action of natural resiliency restoring force
Position originally.When carrying out pitching operation again, compresses the elastic supporting member for supporting optical member 5 again, then then return to original
Position.It can be seen that the elastic supporting member for supporting optical member 5 can move back and forth under the effect of pressure difference pitching part 4.
In embodiments herein, which can be spring or other components with spring function.
In a preferred embodiment, which includes being arranged in the second hole 411 and in compressive state
What the periphery wall that resiliency urged part 31 and one end and resiliency urged part 31 abut against the other end and pitching locating part 2 abutted against
Set part 32.Specifically, when not carrying out pitching operation, the outlet end 412 in the second hole 411 is by the periphery wall of pitching locating part 2
21 block, and are blocked in the second hole 411 in this way, just to set part 32, so that resiliency urged part 31 is in the shape of compression
State.It can be seen that the resiliency urged part 31 has laid in certain elastic potential energy at this time, standard is carried out for next pitching operation
It is standby.
In one embodiment, which can be spring or other components with spring function.
As shown in Figure 1, in a preferred embodiment, successively being constructed from top to bottom on the bottom wall 12 of ball seat ontology 1
Have first set hole 13 and with this first set that hole 13 is connected second set hole 14, wherein first sets the aperture in hole 13
The aperture for setting hole 14 greater than second.The purpose designed in this way is, when setting part 32 and dropping into second and set in hole 14, if
It is set second and has silt in hole 14, then may there is a problem of that sealing effect is bad and bearing capacity is not high.However,
Hole 13 is set due to being also additionally arranged first in the present invention, and makes first aperture for setting hole 13 be greater than second and sets hole 14
Aperture, by being set in hole 13 so that ball drops into first from ground to underground ball throwing, so that the sealing for realizing pitching is made
Industry.In this way, just increasing the success rate of pitching operation.
As shown in figure 3, in a preferred embodiment, have fluid through-hole 22 in the internal structure of pitching locating part 2, it should
Fluid through-hole 22 sets hole 13 with first and is connected.In this way, just may be implemented in during tripping in, fluid flows into tubing string from annular space
It is interior, keep the inside and outside differential pressure of tubing string to balance, meanwhile, when not carrying out pitching operation, a fixed displacement circulation can also be carried out, is reduced
The generation of down hole problem.
In a preferred embodiment, when the external force that the pressure difference pitching part 4 is subject to is greater than the elastic force of elastic supporting member for supporting optical member 5
When, pressure difference pitching part 4 moves down, when the first hole 211 is connected with the second hole 411, set part 32 in its own gravity and
Under the action of the elastic force of resiliency urged part 31, enters second and set in hole 14.It can be seen that due to originally not thrown
It when ball operation, sets part 32 and is blocked by the periphery wall 21 of pitching locating part 2, so that the resiliency urged part 31 is in compression
State.However, part 32 is set due to losing blocking for periphery wall 21 when the first hole 211 is connected with the second hole 411, at this point,
Again by the elastic force of resiliency urged part 31, this can be set to part 32 and released from the second hole 411, and fallen through the first hole 211
Second entered into ball seat ontology 1 sets in hole 14, to realize automatic ball-throwing operation.
In a preferred embodiment, it is configured with sliding slot 441 on the internal perisporium 44 of the upper end of pressure difference pitching part 4,
The periphery wall 21 of pitching locating part 2 is equipped with the sliding block 23 matched with sliding slot 441.In this way, just making pressure difference pitching part 4 and throwing
Ball locating part 2 will not circumferentially relatively rotate.In addition, due to the setting of sliding block 23, pressure difference pitching part 4 by external force simultaneously
When moving downward, the upper end of the pressure difference pitching part 4 is gradually mutually separated with the bottom end of sliding block 23, meanwhile, the compression of elastic supporting member for supporting optical member 5
Amount is gradually increased.After completing automatic ball-throwing, which can be under the action of natural resiliency restoring force, gradually towards cunning
The direction of block 23 is mobile.When the lower end surface of the upper surface of the pressure difference pitching part 4 and sliding block 23 fits, the elastic supporting member for supporting optical member 5
Stopping moves up.It can be seen that the setting of the sliding block 23, plays the maximum displacement moved up to pressure difference pitching part 4
Restriction effect.
In conclusion the automatic ball-throwing ball seat 100 has the advantages that realize automatic ball-throwing by adjusting discharge capacity, into
One step also has and avoids requirement of other ball seats to the latus rectum size of top drill assembly, i.e., not by combination latus rectum size and
The influence of the factors such as 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 with
And the advantages of can satisfy the down-hole application requirement of multiple types of tools.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (11)
1. a kind of underground automatic ball-throwing ball seat, comprising:
Internal structure has the ball seat ontology of through-hole；
It is arranged in the intrinsic pitching locating part of the ball seat, the first hole is equipped on the periphery wall of the pitching locating part；
The pressure difference pitching part being set on the periphery wall of the pitching locating part, is equipped on the periphery wall of the pressure difference pitching part
Second hole, is equipped with pitching component in second hole, and first hole is located at the lower section in second hole, wherein works as needs
Build the pressure operation when, fluid flows through the pressure difference pitching part, can generate pressure difference in the upper and lower surfaces of pressure difference pitching part, described
Pressure difference pitching part moves down under differential pressure action, after first hole is connected with second hole, so that the throwing
The part that sets in ball component drops into the ball seat ontology to realize pitching operation.
2. automatic ball-throwing ball seat in underground according to claim 1, which is characterized in that in the periphery wall of the pitching locating part
Upper compartment is equipped with multiple first holes, and compartment is equipped with multiple second holes on the periphery wall of the pressure difference pitching part, each described
First hole is respectively positioned on the underface in corresponding second hole.
3. automatic ball-throwing ball seat in underground according to claim 2, which is characterized in that be located at the periphery of the pitching locating part
The aperture in each first hole on wall is all larger than on the periphery wall for being located at the pressure difference pitching part and with corresponding described
The aperture in second hole that one hole is connected.
4. automatic ball-throwing ball seat in underground according to claim 3, which is characterized in that each first hole is configured to export
The first oblique hole directed downwardly is held, each second hole is configured to outlet end the second oblique hole directed downwardly.
5. automatic ball-throwing ball seat in underground according to claim 4, which is characterized in that the central axis of each first oblique hole
Line is parallel with the central axis of corresponding second oblique hole.
6. automatic ball-throwing ball seat in underground according to claim 1, which is characterized in that the automatic ball-throwing ball seat further includes setting
It sets in the intrinsic elastic supporting member for supporting optical member of the ball seat, one end of the elastic supporting member for supporting optical member is connected with the bottom wall of the ball seat ontology
It connects, the other end is connected to support the pressure difference pitching part with the bottom wall of the pressure difference pitching part.
7. automatic ball-throwing ball seat in underground according to claim 6, which is characterized in that the pitching component includes being arranged in institute
State in the second hole and the resiliency urged part in compressive state and one end abutted against with the resiliency urged part, the other end and
What the periphery wall of the pitching locating part abutted against described sets part.
8. automatic ball-throwing ball seat in underground according to claim 7, which is characterized in that on the bottom wall of the ball seat ontology from
Successively be configured under first set hole and with described first sets that hole is connected second sets hole, wherein described first
The aperture for setting hole is greater than the described second aperture for setting hole.
9. automatic ball-throwing ball seat in underground according to claim 8, which is characterized in that in the inside structure of the pitching locating part
Fluid through-hole is made, the fluid through-hole sets hole with described first and is connected.
10. automatic ball-throwing ball seat in underground according to claim 8, which is characterized in that be subject to when the pressure difference pitching part
When external force is greater than the elastic force of the elastic supporting member for supporting optical member, the pressure difference pitching part is moved down, when first hole and described the
When two holes are connected, the part that sets enters described second and sets in hole under the action of the resiliency urged part.
11. automatic ball-throwing ball seat in underground according to claim 1, which is characterized in that in the upper end of the pressure difference pitching part
Internal perisporium on be configured with sliding slot, the sliding block that matches with the sliding slot is equipped on the periphery wall of the pitching locating part.
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 CN106545310A (en) | 2017-03-29 |
| CN106545310B true 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545310B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476795B (en) * | 2017-10-17 | 2023-06-27 | 西南石油大学 | Self-ordering multistage hydraulic control fracturing ball injection device |
Citations (7)
| 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 |
-
2015
- 2015-09-18 CN CN201510598435.5A patent/CN106545310B/en active Active
Patent Citations (7)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545310A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103261574A (en) | Remotely controlled apparatus for downhole applications and related methods | |
| CN106545310B (en) | A kind of underground automatic ball-throwing ball seat | |
| CN113279725B (en) | Infinitely variable intelligent rotary dart sliding sleeve | |
| CN102747974A (en) | Well drilling vibrator of horizontal well | |
| EP3271544B1 (en) | A downhole tool | |
| CN101881143A (en) | Drillable ball injection sliding sleeve suitable for horizontal well | |
| CN105570119B (en) | Drain plunger and liquid discharging apparatus | |
| CN104019074B (en) | Hydraulic one-way valve | |
| CN109577925B (en) | Multi-cluster spray gun, hydraulic sand-blasting perforation multi-cluster staged fracturing pipe column and process | |
| CN207315301U (en) | Steam injection valve | |
| CN206153861U (en) | Threaded fitting assembles equipment | |
| CN107387038A (en) | A kind of water pumping gas production meet the eye on every side vortex instrument with underground | |
| CN105422075B (en) | Sanding machine | |
| CN207999226U (en) | A kind of damping centralizer dropping frictional resistance | |
| CN205172495U (en) | Automatic bowling of liquid accuse in pit connects | |
| CN210087293U (en) | Throwing type soluble bridge plug and well cementation sliding sleeve matched with bridge plug for use | |
| RU133871U1 (en) | CUMULATIVE CUFF PACKER | |
| CN207609853U (en) | A kind of ventilation liquid-preventing valve and vacuum degasser | |
| US2321003A (en) | Differential stage lift flow device | |
| CN109505768A (en) | The heavy storage standing valve assembly apparatus of the two-way sand control of sucker rod pump and application method | |
| CN214247276U (en) | Novel oil drilling expands structure of changing flow of eyes | |
| CN204920868U (en) | Steel ball buckle forced lubrication head | |
| CN214660095U (en) | Fracturing sliding sleeve capable of being kept open after multistage fracturing | |
| US11761311B2 (en) | Perforation cluster layout design and its relative orientation in the subsurface for a hydraulic fracturing treatment | |
| WO2015094241A1 (en) | Decelerator device for ball activated downhole tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |