CN208966310U - Water distribution device and water distribution pipe column - Google Patents
Water distribution device and water distribution pipe column Download PDFInfo
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- CN208966310U CN208966310U CN201821119883.8U CN201821119883U CN208966310U CN 208966310 U CN208966310 U CN 208966310U CN 201821119883 U CN201821119883 U CN 201821119883U CN 208966310 U CN208966310 U CN 208966310U
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- water distribution
- water
- annular space
- distribution device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 239000004576 sand Substances 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 235000019994 cava Nutrition 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The application provides a water distribution device and water distribution tubular column, the water distribution device includes: the inner pipe is vertically communicated; the inner pipe is provided with an inlet; the outer pipe is sleeved outside the inner pipe, a first annular space is formed between the outer pipe and the inner pipe, and the first annular space is communicated with the inlet; a slot for water injection is arranged on the outer pipe; the water nozzle is arranged in the first annular space and is provided with a liquid outlet with an adjustable opening size; the liquid outlet is communicated with the cutting slot and the first annular space; the outer tube is including enclosing the body of establishing in the inner tube outside and cup jointing the sheath in the body upper end, and the inner wall and the inner tube of sheath cup joint mutually, and the slot sets up on the sheath, and it is open to be provided with the lower extreme in the sheath, the cavity of upper end shutoff, cavity intercommunication slot and first annular space, and the water injection well choke is worn to locate in the cavity. The embodiment of the application provides a water distribution device and a water distribution pipe column with filtering capability.
Description
Technical Field
The application relates to the technical field of drilling tools for drilling, in particular to a water distribution device and a water distribution pipe column.
Background
The water distribution device is used for injecting water to the oil layer.
The water distribution device in the prior art comprises a water injection pipe, a flowmeter, a data acquisition unit, a control circuit, a motor and a water nozzle. The water injection pipe is connected with one end of the flowmeter, and the water nozzle is connected with the other end of the flowmeter. The flowmeter, the data acquisition unit and the motor are respectively electrically connected to the control circuit, and the motor drives the water nozzle to open and close. However, the water distribution device is not provided with a filtering device, dirt such as sand and dead oil cannot be blocked outside the water injection pipe, once the sand enters the water injection pipe, the sand and the dirt are gradually deposited in the water injection pipe, and the water quantity measuring and adjusting work in the future is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the application provides a water distribution device and a water distribution pipe column with filtering capability.
In order to achieve the purpose, the application provides the following technical scheme: water dispenser, comprising: the inner pipe is vertically communicated; the inner pipe is provided with an inlet; the outer pipe is sleeved outside the inner pipe, a first annular space is formed between the outer pipe and the inner pipe, and the first annular space is communicated with the inlet; a slot for water injection is arranged on the outer pipe; the water nozzle is arranged in the first annular space and is provided with a liquid outlet with an adjustable opening size; the liquid outlet is communicated with the cutting slot and the first annular space.
As a preferred embodiment, the outer tube comprises a tube body enclosed outside the inner tube and a sheath sleeved on the upper end of the tube body, the inner wall of the sheath is sleeved with the inner tube, the slit is arranged on the sheath, a cavity with an open lower end and a blocked upper end is arranged in the sheath, the cavity is communicated with the slit and the first annular space, and the water nozzle is arranged in the cavity in a penetrating manner.
As a preferred embodiment, the inner wall of the cavity extends inwards along the circumferential direction to form a convex ring, the outer wall of the water nozzle is inwards recessed along the circumferential direction to form a ring groove, and the convex ring extends into the ring groove.
As a preferred embodiment, the lower end of the inner tube is sleeved with a connecting tube, the outer wall of the connecting tube is sleeved with the outer tube, the inlet is arranged on the connecting tube, the inlet is communicated with the first annular space, a groove which is open towards the inlet is arranged on the side wall of the connecting tube, and a flow meter is arranged in the groove in a penetrating manner.
In a preferred embodiment, the inner wall of the groove extends radially inward to form a limiting portion, and the limiting portion is used for limiting the flow meter.
In a preferred embodiment, a lower joint is connected to the lower end of the outer pipe, and the outer wall of the connecting pipe is connected to the lower joint.
As a preferred embodiment, the water nozzle includes a hollow housing and a main shaft rotatably disposed in the housing, the housing is open toward the inlet, the housing is provided with a liquid outlet capable of communicating with the slit, and the main shaft can rotate relative to the outer tube to adjust the opening size of the liquid outlet.
As a preferred embodiment, a control circuit, a flow meter for acquiring flow data, a communication module for receiving a ground instruction, and a motor in transmission connection with the spindle are arranged in the first annular space; the flowmeter is positioned between the water nozzle and the inlet, and the flowmeter and the motor are respectively electrically connected to the control circuit; the control circuit is electrically connected with the communication module and used for receiving the ground regulation and control instruction and controlling the rotation of the main shaft according to the ground regulation and control instruction and the flow data.
A water distribution string, comprising: a packer, an oil pipe, a water distribution device as described above; the oil pipes comprise a first oil pipe, a second oil pipe and a third oil pipe which are arranged at intervals from top to bottom; the packer comprises a first packer and a second packer, and the upper end of the first packer is connected with the lower end of the first oil pipe; the lower end of the first packer is connected with the upper end of the second oil pipe; the upper end of the second packer is connected with the lower end of the third oil pipe; the water distribution device comprises a first water distribution device and a second water distribution device, the upper end of the inner pipe in the first water distribution device is connected with the lower end of the second oil pipe, and the lower end of the inner pipe in the first water distribution device is connected with the upper end of the third oil pipe.
In a preferred embodiment, a fourth oil pipe is connected to the lower end of the second packer; the lower end of the fourth oil pipe is connected with the second water distribution device, the lower end of the second water distribution device is connected with a sand setting ball seat, and the lower end of the sand setting ball seat is connected with a tail pipe.
In a preferred embodiment, the packer, the oil pipe and the water distributor are at least one group.
As a preferred embodiment, the sand setting ball seat comprises a body and a cylinder sleeve connected to the upper end of the body, a blind hole extending in the vertical direction is formed in the body, the blind hole is open upwards, a filter sleeve used for preventing sand from entering the blind hole is arranged on the body, the filter sleeve is arranged in the cylinder sleeve, a blocking ball capable of blocking the blind hole and provided with an opening is arranged in the filter sleeve, a second annular space is formed between the filter sleeve and the cylinder sleeve, water holes communicated with the blind hole and the outside of the sand setting ball seat are formed in the side wall of the body, and a longitudinal through hole communicated with the second annular space and the lower portion of the body is further formed in the side wall of the body.
Borrow by above technical scheme, water distribution device and water distribution tubular column because the slot that sets up on the outer tube can carry out the water injection to the oil reservoir in the well, can block filths such as silt particle, dead oil outside the outer tube again to prevent filths such as silt particle, dead oil from getting into the inner tube, and the deposit in the inner tube influences water yield measure and regulate work in the future. Therefore, the embodiment of the application provides a water distribution device with a filtering function and a water distribution pipe column.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for assisting the understanding of the present application, and are not particularly limited to the shapes, the proportional sizes, and the like of the respective members in the present application. Those skilled in the art, having the benefit of the teachings of this application, may select various possible shapes and proportional sizes to implement the present application, depending on the particular situation. In the drawings:
fig. 1 is a schematic structural view of a water distribution apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a water distribution string according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of a sand setting ball seat according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1, a water distribution device provided in this embodiment includes: an inner tube 27, wherein the inner tube 27 penetrates up and down; the inner pipe 27 is provided with an inlet 54; the outer pipe 29 is sleeved outside the inner pipe 27, a first annular space 37 is formed between the outer pipe 29 and the inner pipe 27, and the first annular space 37 is communicated with the inlet 54; a slot 35 for water injection is arranged on the outer pipe 29; the water nozzle 39 is arranged in the first annular space 37, and the water nozzle 39 is provided with a liquid outlet with an adjustable opening size; the outlet port communicates the slot 35 with the first annular space 37.
During the use, be connected the upper and lower both ends of inner tube 27 with outside tubular column respectively to with this application water distribution device connect on outside tubular column, in order to can be with this application through outside tubular column water distribution device go into in the predetermined oil reservoir in the well. Water is then injected into the inner pipe 27 through the outer string. Fluid enters the first annular space 37 between the outer tube 29 and the inner tube 27 through the inlet 54 of the inner tube 27. And flows into the slot 35 through the liquid outlet to inject water into the oil layer in the well and to adjust the flow rate of the fluid injected into the oil layer through the liquid outlet. Because the slots 35 can stop dirt such as silt, dead oil outside the outer tube 29 to prevent dirt such as silt, dead oil from entering the inner tube 27, and deposit in the inner tube 27, influence the water yield measurement and adjustment work in the future, the embodiment of the application provides a water distribution device and a water distribution pipe column with filtering capability.
As shown in fig. 1, in the present embodiment, the inner tube 27 has a hollow structure. The hollow part is vertically through. The lower end of the inner pipe 27 is fitted with a connection pipe 51. Specifically, an external thread is provided on an outer wall of a lower end of the inner tube 27, and an internal thread is provided on an inner wall of an upper end of the connection tube 51, so that the external thread of the inner tube 27 is connected with the internal thread of the connection tube 51. Of course, the connection mode between the connection pipe 51 and the inner pipe 27 is not limited to this, and other connection modes such as welding and integral molding may be used. Further, the connection pipe 51 is provided with an inlet 54, and the inlet 54 communicates with the first annular space. So that fluid in the inner tube 27 can flow into the first annular space 37 between the inner tube 27 and the outer tube 29 through the inlet 54 on the connecting tube 51.
In the present embodiment, the outer tube 29 has a hollow structure as a whole. The hollow part is vertically through. The outer tube 29 is sleeved outside the inner tube 27. A first annular space 37 is formed between the outer tube 29 and the inner tube 27. The lower end of the outer tube 29 is fitted to the outer wall of the connection tube 51.
In this embodiment, the water nozzle 39 is disposed in the first annular space 37, and the water nozzle 39 has a liquid outlet whose opening size can be adjusted. Which communicates the slot 35 with the first annular space 37. Thereby enabling the flow of fluid injected into the fracture in the first annular space 37 to be regulated via the fluid outlet and thus the flow of fluid injected into the reservoir.
In one embodiment, the water nozzle 39 includes a hollow housing 41 and a main shaft 43 rotatably disposed through the housing 41, the housing 41 is open to the inlet 54, and the main shaft 43 is rotatable relative to the outer tube 29 to adjust the opening size of the liquid outlet.
In one embodiment, the outer tube 29 comprises a tube body 31 surrounding the inner tube 27 and a sheath 33 sleeved on the upper end of the tube body 31, the inner wall of the sheath 33 is sleeved with the inner tube 27, the slit 35 is arranged on the sheath 33, a cavity 45 with an open lower end and a closed upper end is arranged in the sheath 33, the cavity 45 is communicated with the slit 35 and the first annular space 37, and the water nozzle 39 is arranged in the cavity 45 in a penetrating manner. The sheath 33 is thus shielded from the water nozzle 39 to avoid damage to the water nozzle 39. Specifically, an external thread is provided on an upper end outer wall of the inner tube 27, and an internal thread is provided on an upper end inner wall of the sheath 33, so that the external thread of the inner tube 27 is connected with the internal thread of the sheath 33. Of course, the connection between the sheath 33 and the inner tube 27 is not limited to this, and other connection methods, such as welding and integral molding, may be used. Further, the end of the sheath 33 facing away from the inner tube 27 is provided with an external thread for connection with an external pipe string, so that the upper end of the inner tube 27 can be connected with the external pipe string via the sheath 33.
Further, the inner wall of the cavity 45 extends inwards along the circumferential direction to form a convex ring 47, the outer wall of the water nozzle 39 is sunken inwards along the circumferential direction to form a ring groove 49, and the convex ring 47 extends into the ring groove 49. The water nozzle 39 can thus be fixed in the upper joint by means of the annular groove 49, which prevents the water nozzle 39 from moving upwards under the influence of the fluid.
In one embodiment, the outer wall of the connector tube 51 is sleeved with the outer tube 29; a groove 53 opened to the inlet 54 is formed in a side wall of the connection pipe 51, and a flow meter 59 is inserted into the groove 53. The flow rate of fluid from the inner pipe 27 through the inlet 54 into the first annular space 37 can be measured by the flow meter 59 so that the flow rate at which the water nozzle 39 injects the formation can be known.
Further, the inner wall of the groove 53 extends radially inward to form a stopper portion 55, and the stopper portion 55 is used for stopping the flow meter 59. The stopper 55 prevents the flowmeter 59 from moving upward under the impact of the water flow and thus from being separated from the recess 53.
Further, a lower joint 57 is connected to the lower end of the outer tube 29, and the outer wall of the connection tube 51 is connected to the lower joint 57. Specifically, an external thread is provided on an outer wall of a lower end of the connection pipe 51, and an internal thread is provided on an inner wall of an upper end of the lower joint 57, so that the external thread of the connection pipe 51 is connected with the internal thread of the lower joint 57. Of course, the connection between the connection pipe 51 and the lower connector 57 is not limited to this, and other connection methods, such as welding and integral molding, may be used. The lower sub 57 is used to connect with an external pipe string. This enables the lower end of the inner pipe 27 to be connected to an outer pipe string.
In one embodiment, a control circuit, a flow meter 59 for acquiring flow data, a communication module for receiving surface commands, and a motor 61 drivingly connected to the main shaft 43 are disposed within the first annular space 37; the flowmeter 59 is positioned between the water nozzle 39 and the inlet 54, and the flowmeter 59 and the motor 61 are respectively electrically connected with the control circuit; the control circuit is electrically connected with the communication module, and the control circuit is used for receiving the ground regulation and control instruction and controlling the rotation of the main shaft 43 according to the ground regulation and control instruction and the flow data. Therefore, the water distribution device can avoid mechanical butt joint of a tester and the water nozzle 39, and further improves the testing and adjusting success rate of the water injection well.
As shown in fig. 2, the present embodiment also provides a water distribution pipe column, which includes: a packer, an oil pipe and the water distribution device; the oil pipes comprise a first oil pipe 63, a second oil pipe 65 and a third oil pipe 67 which are arranged from top to bottom at intervals; the packers comprise a first packer 71 and a second packer 73, the upper end of the first packer 71 is connected with the lower end of the first oil pipe 63; the lower end of the first packer 71 is connected with the upper end of the second oil pipe 65; the upper end of the second packer 73 is connected with the lower end of the third tubing 67; the water distribution device comprises a first water distribution device 75 and a second water distribution device 77, the upper end of the inner pipe 27 in the first water distribution device 75 is connected with the lower end of the second oil pipe 65, and the lower end of the inner pipe 27 in the first water distribution device 75 is connected with the upper end of the third oil pipe 67.
The technical scheme shows that: the water distribution pipe column described in the embodiment of the present application can inject water into the oil layer in the well due to the slots 35 formed in the outer pipe 29, and can block dirt such as sand, dead oil and the like outside the outer pipe 29, so as to prevent the dirt such as sand, dead oil and the like from entering the inner pipe 27, and deposit in the inner pipe 27, thereby affecting the water quantity measuring and adjusting work in the future. Therefore, the embodiment of the application provides a water distribution pipe column with a filtering function.
Further, a fourth oil pipe 69 is connected to the lower end of the second packer 73; the lower end of the fourth oil pipe 69 is connected with a second water distribution device 77, the lower end of the second water distribution device 77 is connected with a sand setting ball seat 79, and the lower end of the sand setting ball seat 79 is connected with a tail pipe 81. Preferably, the packer, the oil pipe and the water distribution device are at least one group.
As shown in fig. 3, in one embodiment, the sand setting ball seat 79 includes a body 11 and a cylinder sleeve 13 connected to the upper end of the body 11, a blind hole 15 extending in the vertical direction is provided in the body 11, the blind hole 15 opens upward, a filter sleeve 17 for preventing sand from entering the blind hole 15 is provided on the body 11, the filter sleeve 17 is provided in the cylinder sleeve 13, a blocking ball 19 capable of blocking the opening of the blind hole 15 is provided in the filter sleeve 17, a second annular space 21 is formed between the filter sleeve 17 and the cylinder sleeve 13, a water hole 23 communicating the blind hole 15 with the outside of the sand setting ball seat 79 is provided in the side wall of the body 11, and a longitudinal through hole 25 communicating the second annular space 21 with the lower side of the body 11 is further provided in the.
The working process of the sand setting ball seat 79 is as follows: when water is injected, as shown in fig. 3, liquid enters the second annular space 21 from top to bottom, enters the filter sleeve 17 through the filter hole in the upper part of the filter sleeve 17, pressure is built between the blocking ball 19 and the body 11, and when sand exists in the oil pipe, the sand sequentially passes through the second annular space 21 and the longitudinal through hole 25 downwards and then enters the lower tail pipe 81. When a well is required to be washed, the washing liquid outside the sand setting ball seat 79 enters the blind hole 15 through the water hole 23 of the main body and pushes the blocking ball 19 open, then enters the second annular space 21 through the filtering hole on the upper part of the filtering sleeve 17, and then returns out of the oil pipe. The sand setting ball seat 79 can also be provided with a spring on the upper part of the plugging ball 19 according to the size of the formation starting pressure, so that the opening under the control of pressure is realized.
It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego the subject matter and should not be construed as an admission that the applicant does not consider such subject matter to be part of the disclosed subject matter.
Claims (12)
1. A water dispenser, comprising:
the inner pipe is vertically communicated; the inner pipe is provided with an inlet;
the outer pipe is sleeved outside the inner pipe, a first annular space is formed between the outer pipe and the inner pipe, and the first annular space is communicated with the inlet; a slot for water injection is arranged on the outer pipe;
the water nozzle is arranged in the first annular space and is provided with a liquid outlet with an adjustable opening size; the liquid outlet is communicated with the cutting slot and the first annular space.
2. Water dispenser according to claim 1, characterized in that: the outer pipe comprises a pipe body arranged outside the inner pipe in a surrounding mode and a sheath sleeved at the upper end of the pipe body, the inner wall of the sheath is sleeved with the inner pipe, the cutting seam is arranged on the sheath, a cavity with the lower end open and the upper end blocked is arranged in the sheath, the cavity is communicated with the cutting seam and the first annular space, and the water nozzle is arranged in the cavity in a penetrating mode.
3. Water dispenser according to claim 2, characterized in that: the inner wall of cavity inwards extends along circumference and forms the bulge loop, the outer wall of water injection well choke inwards caves in along circumference and forms the annular, the bulge loop stretches into in the annular.
4. Water dispenser according to claim 1, characterized in that: the lower extreme of inner tube has cup jointed the connecting pipe, the outer wall of connecting pipe with the outer tube cup joints mutually, the entry set up in on the connecting pipe, just the entry with first annular space is linked together, be provided with on the lateral wall of connecting pipe towards the open recess of entry, wear to be equipped with the flowmeter in the recess.
5. Water dispenser according to claim 4, characterized in that: the inner wall of the groove extends inwards along the radial direction to form a limiting part, and the limiting part is used for limiting the flowmeter.
6. Water dispenser according to claim 4, characterized in that: the lower extreme of outer tube is connected with the lower clutch, the outer wall of connecting pipe with the lower clutch is connected.
7. Water dispenser according to claim 1, characterized in that: the water nozzle comprises a hollow shell and a main shaft which can be rotatably arranged in the shell in a penetrating mode, the shell faces the inlet and is open, and the main shaft can rotate relative to the outer pipe to adjust the opening size of the liquid outlet.
8. Water dispenser according to claim 7, characterized in that: a control circuit, a flowmeter for acquiring flow data, a communication module for receiving ground instructions and a motor in transmission connection with the spindle are arranged in the first annular space; the flowmeter is positioned between the water nozzle and the inlet, and the flowmeter and the motor are respectively electrically connected to the control circuit; the control circuit is electrically connected with the communication module and used for receiving the ground regulation and control instruction and controlling the rotation of the main shaft according to the ground regulation and control instruction and the flow data.
9. A water distribution pipe string, characterized in that it comprises: a packer, tubing, water dispenser according to claim 1; wherein,
the oil pipes comprise a first oil pipe, a second oil pipe and a third oil pipe which are arranged at intervals from top to bottom;
the packer comprises a first packer and a second packer, and the upper end of the first packer is connected with the lower end of the first oil pipe; the lower end of the first packer is connected with the upper end of the second oil pipe; the upper end of the second packer is connected with the lower end of the third oil pipe;
the water distribution device comprises a first water distribution device and a second water distribution device, the upper end of the inner pipe in the first water distribution device is connected with the lower end of the second oil pipe, and the lower end of the inner pipe in the first water distribution device is connected with the upper end of the third oil pipe.
10. The water distribution string of claim 9, wherein: the lower end of the second packer is connected with a fourth oil pipe; the lower end of the fourth oil pipe is connected with the second water distribution device, the lower end of the second water distribution device is connected with a sand setting ball seat, and the lower end of the sand setting ball seat is connected with a tail pipe.
11. Water distribution column according to claim 9 or 10, characterized in that: the packer, the oil pipe and the water distribution device are at least one group.
12. The water distribution string of claim 10, wherein: the sand setting ball seat comprises a body and a cylinder sleeve connected to the upper end of the body, a blind hole extending in the vertical direction is formed in the body, the blind hole is open upwards, a filter sleeve used for preventing sand from entering the blind hole is arranged on the body, the filter sleeve is arranged in the cylinder sleeve, a blocking ball capable of blocking the blind hole is arranged in the filter sleeve, a second annular space is formed between the filter sleeve and the cylinder sleeve, a water hole communicated with the blind hole and the outside of the sand setting ball seat is formed in the side wall of the body, and a longitudinal through hole communicated with the second annular space and the lower portion of the body is further formed in the side wall of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119883.8U CN208966310U (en) | 2018-07-16 | 2018-07-16 | Water distribution device and water distribution pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119883.8U CN208966310U (en) | 2018-07-16 | 2018-07-16 | Water distribution device and water distribution pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966310U true CN208966310U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821119883.8U Active CN208966310U (en) | 2018-07-16 | 2018-07-16 | Water distribution device and water distribution pipe column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685654A (en) * | 2019-10-29 | 2020-01-14 | 中国石油化工股份有限公司 | Small-diameter intelligent injection allocation device and use method thereof |
-
2018
- 2018-07-16 CN CN201821119883.8U patent/CN208966310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685654A (en) * | 2019-10-29 | 2020-01-14 | 中国石油化工股份有限公司 | Small-diameter intelligent injection allocation device and use method thereof |
| CN110685654B (en) * | 2019-10-29 | 2021-11-26 | 中国石油化工股份有限公司 | Small-diameter intelligent injection allocation device and use method thereof |
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