CN109779569A - A kind of water filling gas injection unidirectional device - Google Patents
A kind of water filling gas injection unidirectional device Download PDFInfo
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- CN109779569A CN109779569A CN201910234569.7A CN201910234569A CN109779569A CN 109779569 A CN109779569 A CN 109779569A CN 201910234569 A CN201910234569 A CN 201910234569A CN 109779569 A CN109779569 A CN 109779569A
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- counterbore
- water filling
- body container
- gas injection
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- 238000002347 injection Methods 0.000 title claims abstract description 66
- 239000007924 injection Substances 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims description 29
- 230000000903 blocking effect Effects 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 241000826860 Trapezium Species 0.000 claims 1
- 108091006146 Channels Proteins 0.000 description 14
- 239000003921 oil Substances 0.000 description 13
- 239000012530 fluid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
A kind of water filling gas injection unidirectional device, top connection, lower contact and valve body assembly including tubulose, valve body assembly include the valve body container and several check valves of tubulose；It is circumferentially with and check valve is the same number of, counterbore for accommodating the check valve in the upper tube wall of valve body container along it, the axis of the counterbore is parallel to the axis of the valve body container；The bottom of the counterbore is provided with the first air inlet communicated with water filling gas injecting pipe；The check valve is sequentially installed with sealed ball seat, ball sealer, piston, spring and spring base from bottom to up；The center of the sealed ball seat is equipped with the second air inlet being connected with first air inlet；The spring base is fixed on the counterbore top, and the spring is compressed spring；The valve body container is provided with the annular groove being connected to the counterbore towards the direction in axle center at the intermediate position along its axial counterbore, and the annular groove is less than the radius of the ball sealer along the width of the valve body container axial direction.
Description
Technical field
The present invention relates to be related to a kind of water filling gas injection unidirectional device, and in particular to one kind is repeatedly followed for oil/gas well foundation
The sensible water filling air injection uni-direction of ring, belongs to oil field technology field.
Background technique
Tahe fracture-pore reservoir gas injection waterflood enhanced recovery technology comes into popularization and application stage, thin oil well note at present
Oil property possibility retrogradation after gas, as the gentle rising of injection water slips after heavy oil wells gas injection, viscous crude goes up fill backward again in well
Full pit shaft, need mix dilute operation at this time with facilitate just some go on smoothly.The downhole tools such as conventional kill-job sliding sleeve can not be real
The multiple switching of existing underground water-injection gas injection equipment can not meet one-trip string and repeatedly mix wanting for dilute operation to be repeatedly connected to oil pipe
It asks.Therefore need to develop it is a kind of suitable for fill the water, gas injection equipment repeatedly be connected to oil pipe operation unidirectional device.And existing note
Structure is complicated for water gas injection device, easily corrosion and scaling, and blocking water filling injecting hole causes water filling gas injection channel opening failure.
Summary of the invention
To make up deficiency existing for above-mentioned field, the present invention provides that a kind of structure is simple, corrosion-resistant, good airproof performance, has
Books circulation channel and the nonexpondable water filling gas injection unidirectional device of energy.
The invention is realized by the following technical scheme:
A kind of water filling gas injection unidirectional device, top connection, lower contact including tubulose and be set to the top connection, lower contact it
Between valve body assembly, the top of the top connection with upper oil pipe for being fixedly connected, and the lower part of the lower contact is used for and lower oil
Pipe is fixedly connected；The valve body assembly includes the valve body container and several check valves of tubulose；In the upper tube wall of the valve body container
It is circumferentially with and check valve is the same number of, counterbore for accommodating the check valve along it, the axis of the counterbore is parallel to
The axis of the valve body container；The bottom of the counterbore is provided with the first air inlet communicated with water filling gas injecting pipe；The valve body
The top of container is fixedly connected with the lower part of the top connection, and its portion of being fixedly connected is equipped with the first sealing ring；The valve body holds
The lower part of device is fixedly connected with the top of the lower contact；The check valve is sequentially installed with sealed ball seat, sealing from bottom to up
Ball, piston, spring and spring base；The sealed ball seat is fixedly connected on the bottom of the counterbore, and its portion of being fixedly connected is equipped with
Second sealing ring；The center of the sealed ball seat is equipped with the second air inlet being connected with first air inlet；The sealing
The radius of ball is greater than the radius of second air inlet；The spring base is fixed on the counterbore top, and the spring is compression
The spring base is fixed in spring, one end, and the other end is fixedly connected with the piston；The valve body container is along the described heavy of its axial direction
The intermediate position in hole is provided with annular groove towards the direction in axle center, and the annular groove is connected to the counterbore, and the annular groove edge
The width of the valve body container axial direction is less than the radius of the ball sealer；Effect of the ball sealer in the pretightning force of the spring
Under, the centre of sphere is in the lower part of the annular groove.
Preferably, the valve body container in first air inlet position, is provided with trapezoidal groove obliquely, described first
Air inlet is opened at the right-angle side of the trapezoidal groove, and the radial direction at the bevel edge of the trapezoidal groove along the valve body container is oblique
Under.
Preferably, the water filling gas injection unidirectional device further includes opening device, the opening device includes shear sleeve, edge
Several shear pins and baffle ring of the circumferential exterior surface setting of the shear sleeve；The shear sleeve is socketed in outside the valve body assembly
And be in contact with the lower end of the top connection, between the upper end for cutting off set and the lower end of the top connection in formation
Recessed annular pressure makees use；Third sealing ring is equipped between the inner surface of the shear sleeve and the outer surface of the valve body assembly
With the 4th sealing ring；The trapezoidal groove is at least completely covered in the shear sleeve；The axis of the shear pin is cut perpendicular to described
The axis of set is cut, and one end is located at the shear sleeve, the other end is located at the valve body container；The baffle ring holds set on the valve body
Device is fixedly connected with the outside of part with the lower contact；When the shear pin is cut, the shear sleeve is in the valve body container
Downwardly slide at baffle ring, and expose the trapezoidal groove.
Preferably, the spring base is fixed on the counterbore of the valve body container using several fluting tapered end holding screws
On inner surface；Axis of the axis of the fluting tapered end holding screw perpendicular to the counterbore.
Preferably, between the ball sealer and the sealed ball seat, it is between the ball sealer and the counterbore and described
It is rigid body contact surface between the upper end of spring base and the top connection, belongs to stiff dough sealing.
Preferably, the spring base is hollow cylinder shape structure, the spring is cylindrical screw formula structure.
Preferably, the sealed ball seat is up big and down small ladder-like hollow shaft, it is corresponding to place the sealed ball seat
Its bottom of counterbore be up big and down small stepped hole, the fixed connection place of the two be respectively equipped with the second sealing ring and the 5th sealing
Circle.
Preferably, the check valve has 4 sets, central symmetry is distributed in the counterbore of the valve body upper vessel portion.
Preferably, the shear pin is evenly distributed with 6 along the circumferential exterior surface of the shear sleeve.
Preferably, the ball sealer uses ceramic material overlay film, the sealed ball seat at least connects with the ball sealer
The position of touching uses ceramic material overlay film.
Advantage is the present invention compared with the existing technology:
1, water filling gas injection unidirectional device of the present invention when in use, is mounted on the top of packer, compressed spring
It may be implemented repeatedly to be automatically switched water filling gas injection channel under the action of annular pressure with ball sealer, water filling gas injection both can be improved and follow
Ring efficiency, and the mobility of viscous crude can be increased to greatest extent；Both water filling gas injection operation can be individually carried out, can also be filled the water
Gas injection and operation simultaneously of recovering the oil, it is unaffected between each other.
2, water filling its check valve of gas injection unidirectional device of the present invention uses the ball sealer of ball type, connects with sealed base
Contacting surface product is small, and flexible movements are not easy card resistance；And the ball-and-seat assembly designs several when being designed as multiple such as 4 altogether, it can
To increase the flow channel number and area of passage of water filling gas injection, blocking is further prevented.
3, water filling gas injection unidirectional device of the present invention uses the compressed spring with pretightning force to pre-tighten, it can be ensured that ring
Closing is resetted when empty pressure reduction in time, and compressed spring uses cylindrical screw formula structure, spring base is hollow cylinder shape, and is adopted
With piston structure, it is more uniformly stressed ball sealer.
4, water filling gas injection unidirectional device of the present invention is in first air inlet position, is provided with obliquely trapezoidal recessed
Slot, the trapezoidal groove prevent deposit from blocking fluid injection gas injection channel, and it is logical to provide more smoothly fluid injection gas injection for the first air inlet
Road.
5, water filling gas injection unidirectional device of the present invention, between the ball sealer and the sealed ball seat, described close
It is rigid body contact surface between blocking and the counterbore and between the upper end of the spring base and the top connection, belongs to stiff dough
Sealing, anti-erosion property are high.
6, water filling gas injection unidirectional device of the present invention, further includes opening device, is protected to water filling gas injection channel,
It is readily transported and installs；When selection, what the shear pressure of the shear pin necessarily was greater than packer tests seal pressure 3-5MPa；And work as
When annular pressure is sufficiently large, shear pin is cut, the automatic slide downward of shear sleeve, annular injection enter fluid into the first air inlet and
Second air inlet, and then ball sealer is pushed to move up, water filling gas injection channel is opened.
7, water filling gas injection unidirectional device of the present invention, ball sealer and sealed ball seat Ceramics coating, it is resistance to
Erosion, burn into is not less scaling, improves the service life of equipment.
Detailed description of the invention
Fig. 1 is a kind of embodiment structure schematic diagram of present invention water filling gas injection unidirectional device；
Fig. 2 is a kind of embodiment check valve part-structure partial enlarged view of present invention water filling gas injection unidirectional device.
Each label lists as follows in figure:
1-top connection；2-valve body assemblies；3-lower contacts；
21-valve body containers；22-check valves；
211-counterbores；212-the first air inlet；213-trapezoidal grooves；214- annular groove；
221-sealed ball seats；222-ball sealers；223-pistons；224-springs；225-spring bases；226-fluting cones
Hold holding screw；
The second air inlet of 221a-；
4-the first sealing ring；5-the second sealing ring；51-the five sealing ring
6-opening devices；
61-shear sleeves；62-shear pins；63-baffle rings；
7-annular pressures make use；8-third sealing rings；9-the four sealing ring.
Specific embodiment
To facilitate the understanding of the present invention, in the following with reference to the drawings and specific embodiments, the present invention will be described in more detail.
This specification and its a better embodiment of the invention is given in the attached drawing, still, the present invention can be in many different forms
To realize, however it is not limited to this specification described embodiment.On the contrary, purpose of providing these embodiments is makes to the present invention
Disclosure understanding it is more thorough and comprehensive.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes one
Any and all combinations of a or multiple relevant listed items.Meanwhile the direction term that the present invention is previously mentioned, such as "
On ", "lower", "front", "rear", "left", "right", "inner", "outside", " side " etc., be only the direction of reference book attached drawing.Cause
This, the direction term used is to illustrate and understand the present invention, rather than to limit the present invention.
The present invention is further detailed with reference to the accompanying drawings and examples.
A kind of water filling gas injection unidirectional device top connection 1, lower contact 3 including tubulose and is set to institute as depicted in figs. 1 and 2
The valve body assembly 2 between top connection 1, lower contact 3 is stated, the top of the top connection 1 is fixedly connected with upper oil pipe, the lower contact
3 lower part is fixedly connected with lower oil pipe；Specifically, of the present invention be fixedly connected as pipe screw thread connection or other companies of fixation
It connects.The valve body assembly 2 includes the valve body container 21 and several check valves 22 of tubulose；Edge in the upper tube wall of the valve body container 21
It is circumferentially with and check valve 22 is the same number of, counterbore 211 for accommodating the check valve 22, the axis of the counterbore 211
Line is parallel to the axis of the valve body container 21；The bottom of the counterbore 211 be provided with water filling gas injecting pipe communicate first into
Stomata 212；The top of the valve body container 21 is fixedly connected with the lower part of the top connection 1, and its portion of being fixedly connected is equipped with the
One sealing ring 4；The lower part of the valve body container 21 is fixedly connected with the top of the lower contact 3；The check valve 22 from down toward
On be sequentially installed with sealed ball seat 221, ball sealer 222, piston 223, spring 224 and spring base 225；The sealed ball seat 221
It is fixedly connected on the bottom of the counterbore 211, and its portion of being fixedly connected is equipped with the second sealing ring 5；In the sealed ball seat 221
The heart is equipped with the second air inlet 221a being connected with first air inlet 212；The radius of the ball sealer 222 is greater than described the
The radius of two air inlet 221a；Ball sealer 222 of the check valve 22 using ball type, movement small with 221 contact area of sealed ball seat
Flexibly, it is not easy card resistance.The spring base 225 is fixed on the counterbore 211, and the spring 224 is compressed spring, and one end is fixed
In the spring base 225, the other end is fixedly connected with piston 223, is pre-tightened using the compressed spring with pretightning force, it can be ensured that
Ball sealer 222 is resetted in time under the action of initial tension of spring and its pressure itself and is closed when annular pressure reduces.
The valve body container 21 is provided with ring towards the direction in axle center at the intermediate position along its axial counterbore 211
Shape slot 214, the annular groove 214 are connected to the counterbore 211, and the annular groove 214 is along 21 axial direction of valve body container
Width is less than the radius of the ball sealer 222；The effect of pretightning force of 211 ball sealer 222 of counterbore in the spring 224
Under, the centre of sphere is in the lower part of the annular groove 214.
Water filling gas injection unidirectional device of the present invention when in use, is mounted on the top of packer, ball sealer is in ring
Under the action of pneumatics power and compressed spring 223, it may be implemented repeatedly to be automatically switched water filling gas injection channel, water filling gas injection both can be improved
Cycle efficieny, and the mobility of viscous crude can be increased to greatest extent；Both water filling gas injection operation can be individually carried out, can also be infused
Water gas injection and operation simultaneously of recovering the oil, it is unaffected between each other.Specifically, when annular pressure is greater than the compressed spring 224
Pretightning force and the ball sealer 222, piston 223 gravity when, the ball sealer 222 pushes the piston 223 to move up, when
When the ball sealer 222 is moved to the top of the annular groove 214, water filling gas injection channel is opened, and fluid from outside is via first
Air inlet 212, the second air inlet 221a, annular groove 214 enter in pipeline.When annular pressure declines and is lower than the compressed spring
224 pretightning force and the ball sealer 222, piston 223 gravity when, the ball sealer 222 is in the spring 224 and the work
It is moved down under the action of plug 223, blocks the second air inlet 221a, complete a water filling gas injection cycle.
Preferably, the valve body container 21 at first air inlet 212, is provided with trapezoidal groove 213 obliquely,
First air inlet 212 is opened at the right-angle side of the trapezoidal groove 213, along described at the bevel edge of the trapezoidal groove 213
Obliquely, which prevents deposit from blocking fluid injection gas injection channel to the radial direction of valve body container, provides more for the first air inlet
For smoothly fluid injection gas injection channel.
Preferably, the water filling gas injection unidirectional device, further includes opening device 6, water filling gas injection channel is protected,
It is readily transported and installs；The opening device 6 is arranged several including shear sleeve 61, along the circumferential exterior surface of the shear sleeve 61
Shear pin 62 and baffle ring 63；The shear sleeve 61 is socketed in 2 outside of valve body assembly and the lower end phase with the top connection 1
Contact, the annular pressure that indent is formed between the upper end for cutting off set 61 and the lower end of the top connection 1 make use 7；
The trapezoidal groove 213 is at least completely covered in the shear sleeve 61；The axis of the shear pin 62 is perpendicular to the shear sleeve 61
Axis, and one end is located at the shear sleeve 61, and the other end is located at the valve body container 21；The baffle ring 63 is set to the valve body
Container 21 is fixedly connected with the outside of part with the lower contact 3；When annular pressure is sufficiently large, the shear pin 62 is by annular space pressure
Power is cut, and the shear sleeve 61 slides down at baffle ring 63 automatically in the outer surface of the valve body container 21, and described in exposing
Trapezoidal groove 213, annular injection enters fluid into the first air inlet and the second air inlet, and then ball sealer is pushed to move up, water filling note
It opens in gas channel.
It is sealed preferably, being equipped with third between the inner surface of the shear sleeve 61 and the outer surface of the valve body assembly 2
Circle 8 and the 4th sealing ring 9.
Preferably, the spring base 225 is fixed on the valve body container 21 using several fluting tapered end holding screws 226
Counterbore 211 inner surface on；Axis of the axis of the fluting tapered end holding screw 226 perpendicular to the counterbore 211.
Preferably, between the ball sealer 222 and the sealed ball seat 221, the ball sealer 222 and the counterbore
Between 211 and it is rigid body contact surface between the upper end of the spring base 225 and the top connection 1, belongs to stiff dough sealing, resist
Erosion property is high.
Preferably, the spring base 225 is hollow cylinder shape structure, the spring 224 is cylindrical screw formula structure, and
It is acted on ball sealer using piston structure, is more uniformly stressed ball sealer.
Preferably, the sealed ball seat 221 is up big and down small ladder-like hollow shaft, it is corresponding to place the ball sealer
Its bottom of counterbore 211 of seat 221 is up big and down small stepped hole, and the fixed connection place of the two is respectively equipped with 5 He of the second sealing ring
5th sealing ring 51.
Preferably, the check valve 22 has four sets, central symmetry is distributed in positioned at the heavy of 21 top of valve body container
In hole 211, increases the flow channel number and area of passage of water filling gas injection well, further prevent blocking.
Preferably, the shear pin 62 is evenly distributed with 6 along the circumferential exterior surface of the shear sleeve 61, for water filling note
The transport and installation of gas unidirectional device provide enough protections, and protect for the unlatching that water filling gas injection unidirectional device fills the water gas injection channel
Enough water filling gas injection pressures are demonstrate,proved, prevent the oil liquid in oil pipe from flowing backwards.
Preferably, the ball sealer 222 uses ceramic material overlay film, the sealed ball seat 221 at least with the sealing
The position that ball 222 is in contact uses ceramic material overlay film, and erosion resistance, burn into is not less scaling, and improve equipment uses the longevity
Life.
It should be pointed out that specific embodiment described above can make those skilled in the art that this hair be more fully understood
It is bright, but do not limit the invention in any way.Therefore, although this specification referring to drawings and examples to present invention has been
Detailed description, it will be understood by those skilled in the art, however, that still can modify or equivalently replace the present invention,
In short, all do not depart from the technical solution and its change of the spirit and scope of the present invention, should all cover in the invention patent
In protection scope.
Claims (10)
1. a kind of water filling gas injection unidirectional device, which is characterized in that top connection, lower contact including tubulose and connect on described
Valve body assembly between head, lower contact, the top of the top connection with upper oil pipe for being fixedly connected, the lower part of the lower contact
For being fixedly connected with lower oil pipe；
The valve body assembly includes the valve body container of tubulose and several check valves for being set in the valve body container；
In the upper tube wall of the valve body container along its be circumferentially with check valve it is the same number of, for accommodating the check valve
Counterbore, the axis of the counterbore are parallel to the axis of the valve body container；The bottom of the counterbore is provided with and water filling gas injecting pipe
The first air inlet communicated；
The top of the valve body container is fixedly connected with the lower part of the top connection, and its portion of being fixedly connected is equipped with the first sealing
Circle；The lower part of the valve body container is fixedly connected with the top of the lower contact；
The check valve is sequentially installed with sealed ball seat, ball sealer, piston, spring and spring base from bottom to up；
The sealed ball seat is fixedly connected on the bottom of the counterbore, and its portion of being fixedly connected is equipped with the second sealing ring；
The center of the sealed ball seat is equipped with the second air inlet being connected with first air inlet；The radius of the ball sealer
Greater than the radius of second air inlet；
The spring base is fixed on the counterbore top, and the spring is compressed spring, and the spring base is fixed in one end, another
End is fixedly connected with the piston；
The valve body container is provided with annular groove towards the direction in axle center at the intermediate position along its axial counterbore, described
Annular groove is connected to the counterbore, and the annular groove is less than the half of the ball sealer along the width of the valve body container axial direction
Diameter；For the ball sealer under the action of pretightning force of the spring, the centre of sphere is in the lower part of the annular groove.
2. water filling gas injection unidirectional device according to claim 1, which is characterized in that the valve body container described first into
At stomata, it is provided with the trapezoidal groove of right-angled trapezium shape obliquely, first air inlet is opened in the straight of the trapezoidal groove
At the arm of angle, at the bevel edge of the trapezoidal groove obliquely along the radial outside of the valve body container.
3. water filling gas injection unidirectional device according to claim 2, which is characterized in that it further include opening device, the unlatching
Device include shear sleeve, along the shear sleeve circumferential exterior surface be arranged several shear pins and baffle ring；The shear sleeve socket
It is in contact outside the valve body assembly and with the lower end of the top connection, the upper end for cutting off set and the top connection
Lower end between formed indent annular pressure make use；The outer surface of the inner surface of the shear sleeve and the valve body assembly
Between be equipped with third sealing ring and the 4th sealing ring；The trapezoidal groove is at least completely covered in the shear sleeve；The shear pin
Axis perpendicular to the axis of the shear sleeve, and one end is located at the shear sleeve, and the other end is located at the valve body container；It is described
Baffle ring is set to the outside that the valve body container is fixedly connected with part with the lower contact；It is described to cut when the shear pin is cut
It cuts and covers downwardly sliding at baffle ring in the valve body container, and expose the trapezoidal groove.
4. water filling gas injection unidirectional device described in one of -3 according to claim 1, which is characterized in that the spring base uses several
On the inner surface for the counterbore that fluting tapered end holding screw is fixed on the valve body container；The axis of the fluting tapered end holding screw
Perpendicular to the axis of the counterbore.
5. water filling gas injection unidirectional device described in one of -3 according to claim 1, which is characterized in that the ball sealer and described close
Between blocking seat, between the ball sealer and the counterbore and between the upper end and the top connection of the spring base be rigid
Contact level belongs to stiff dough sealing.
6. water filling gas injection unidirectional device described in one of -4 according to claim 1, which is characterized in that the spring base is hollow circle
Columnar structures, the spring are cylindrical screw formula structure.
7. water filling gas injection unidirectional device according to claim 5, which is characterized in that the sealed ball seat is up big and down small
Ladder-like hollow shaft, corresponding its bottom of counterbore for placing the sealed ball seat are up big and down small stepped hole, the fixation of the two
Junction is respectively equipped with the second sealing ring and the 5th sealing ring.
8. water filling gas injection unidirectional device according to claim 6, which is characterized in that the check valve has 4 sets, central symmetry
It is distributed in the counterbore of the valve body upper vessel portion.
9. water filling gas injection unidirectional device according to claim 6, which is characterized in that the shear pin is along the shear sleeve
Circumferential exterior surface is evenly distributed with 6.
10. water filling gas injection unidirectional device according to claim 6, which is characterized in that the ball sealer uses ceramic material
Overlay film, the position that the sealed ball seat is at least in contact with the ball sealer use ceramic material overlay film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234569.7A CN109779569B (en) | 2019-03-26 | 2019-03-26 | Water and gas injection one-way device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234569.7A CN109779569B (en) | 2019-03-26 | 2019-03-26 | Water and gas injection one-way device |
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| Publication Number | Publication Date |
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| CN109779569A true CN109779569A (en) | 2019-05-21 |
| CN109779569B CN109779569B (en) | 2020-01-10 |
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| CN201910234569.7A Active CN109779569B (en) | 2019-03-26 | 2019-03-26 | Water and gas injection one-way device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878036A (en) * | 2020-08-05 | 2020-11-03 | 中石化石油工程技术服务有限公司 | Multifunctional fluid one-way injection device and use method thereof |
| CN112267857A (en) * | 2020-09-22 | 2021-01-26 | 中国石油天然气股份有限公司 | Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method |
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| US20080011487A1 (en) * | 2006-07-13 | 2008-01-17 | Blackhawk Environmental Co. | Drive piston and foot valve seat |
| CN102507096A (en) * | 2011-10-18 | 2012-06-20 | 中国石油化工股份有限公司 | Seal examining method of packer and seal examining device used in method |
| CN203081400U (en) * | 2013-01-23 | 2013-07-24 | 中国石油化工股份有限公司江苏油田分公司 | Double-seal flowback preventing check valve |
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN108019171A (en) * | 2017-12-28 | 2018-05-11 | 中国石油集团川庆钻探工程有限公司 | Radial pressure relief device for downhole drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111878036A (en) * | 2020-08-05 | 2020-11-03 | 中石化石油工程技术服务有限公司 | Multifunctional fluid one-way injection device and use method thereof |
| CN112267857A (en) * | 2020-09-22 | 2021-01-26 | 中国石油天然气股份有限公司 | Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method |
| CN112267857B (en) * | 2020-09-22 | 2022-11-04 | 中国石油天然气股份有限公司 | Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method |
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