CN110206517A - A kind of injection well downhole flow regulator - Google Patents
A kind of injection well downhole flow regulator Download PDFInfo
- Publication number
- CN110206517A CN110206517A CN201910565851.3A CN201910565851A CN110206517A CN 110206517 A CN110206517 A CN 110206517A CN 201910565851 A CN201910565851 A CN 201910565851A CN 110206517 A CN110206517 A CN 110206517A
- Authority
- CN
- China
- Prior art keywords
- connector
- water
- mainstream
- flow regulator
- pipe
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 78
- 239000007924 injection Substances 0.000 title claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 192
- 239000004576 sand Substances 0.000 claims description 44
- 230000002265 prevention Effects 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 108091006146 Channels Proteins 0.000 claims 7
- 102000010637 Aquaporins Human genes 0.000 claims 1
- 108010063290 Aquaporins Proteins 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 33
- 230000000007 visual effect Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 244000258271 Galium odoratum Species 0.000 description 5
- 235000008526 Galium odoratum Nutrition 0.000 description 5
- 230000008450 motivation Effects 0.000 description 3
- 238000006424 Flood reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Valve Housings (AREA)
- Multiple-Way Valves (AREA)
Abstract
The application discloses a kind of injection well downhole flow regulator comprising shell, the first connector, the second connector, mainstream thread a pipe, changeover valve mechanism and driving mechanism.The peripheral wall that mainstream is threaded a pipe offers limbers, one end that mainstream is threaded a pipe is connected to the first connector and is connected to the first mainstream channel, the other end that mainstream is threaded a pipe is connected to the second connector and is connected to the second mainstream channel, shell is set between the first connector and the second connector, shell, the first connector and the second connector limit sealing cavity jointly, mainstream is threaded a pipe in sealing cavity, and sealing cavity is connected to waterflood path.Changeover valve mechanism is located in waterflood path.Driving mechanism connect with changeover valve mechanism and is used to drive changeover valve mechanism to be connected or be truncated waterflood path.The technical solution of the application can effectively solve the problem that the problem that the service life of the executive component in injection well downhole flow regulator in the prior art is not grown.
Description
Technical field
This application involves oil-field flooding technical fields, in particular to a kind of injection well downhole flow regulator.
Background technique
Separated-zone water infection oil field refers to: in oilfield exploitation procedure, the tripping in packer in oil/gas well, heterogeneity
The oil reservoir of (e.g., permeability) separates, and then carries out layering water distribution to oil field in every layer of tripping in injection well downhole flow regulator, to supplement and keep oil
The pressure of layer, improves the yield of oil gas field.Separated-zone water infection oil field is the contradiction improved between different oil reservoirs, improves oil recovery rate most
Effective method.
In the prior art, the service life of the executive component in injection well downhole flow regulator is not grown.
Summary of the invention
This application provides a kind of injection well downhole flow regulator, which can effectively solve the problem that the execution in injection well downhole flow regulator in the prior art
The problem that the service life of element is not grown.
This application provides a kind of injection well downhole flow regulators comprising shell, the first connector, the second connector, mainstream thread a pipe, rotary valve
Door machine structure and driving mechanism.First connector has the first mainstream channel.Second connector have mutually independent waterflood path and
Second mainstream channel.The peripheral wall that mainstream is threaded a pipe offers limbers, one end that mainstream is threaded a pipe be connected to the first connector and with
The connection of first mainstream channel, the other end that mainstream is threaded a pipe are connected to the second connector and are connected to the second mainstream channel, and shell is set
It is placed between the first connector and the second connector, shell, the first connector and the second connector limit sealing cavity jointly, and mainstream is threaded a pipe
In sealing cavity, sealing cavity is connected to waterflood path.Changeover valve mechanism is located in waterflood path.Driving mechanism and rotation
Turn valve mechanism to connect and be used to drive changeover valve mechanism to be connected or be truncated waterflood path.
In above scheme, a kind of injection well downhole flow regulator is provided, which can be in water filling (layering water distribution) use process, effectively
The driving mechanism for driving changeover valve mechanism is protected on ground, and the driving mechanism (executive component) is enabled to be in safety
, in the environment of corrosion-free gas.Wherein, the first connector and the second connector are respectively the top connection and lower contact in this field,
First connector, major flow conduit and the second connector are sequentially connected so that the first mainstream channel of the first connector, mainstream thread a pipe and
Second mainstream channel of the second connector is sequentially communicated, and water filling liquid flows through mainstream by the first mainstream channel importing of the first connector
Thread a pipe, the second mainstream channel with realize to the stratum of different depth carry out can be layered water distribution (multiple sliceable uses of injection well downhole flow regulator,
To realize the stratum work of different depth).Wherein, the waterflood path in the second connector is for filling the water (water distribution) to be retentively laminated
Power.To guarantee that the driving mechanism for controlling water filling aperture is at work in the environment of corrosion-free gas, the first connector, second are connect
The periphery that head and mainstream are threaded a pipe is additionally provided with shell, and shell, the first connector and the second connector limit sealing cavity jointly, the
The waterflood path of two connectors is connected to sealing cavity.Mainstream is threaded a pipe in sealing cavity, is opened up in the peripheral wall of mainstream channel
There is limbers, sealing cavity can be flowed by limbers in mainstream is threaded a pipe by the water filling liquid that the first mainstream channel imports
In, water filling liquid flows to the waterflood path of the second connector, and before flowing to waterflood path, water filling liquid is first filled with driving mechanism
Locating cavity, so that full of water filling liquid at the position of the transmission connection of driving mechanism and changeover valve mechanism, to drive
Mechanism is exposed to component that is outer and connect with changeover valve mechanism in the environment by water filling hydraulic seal, avoids and gas
A possibility that contact, the transmission parts for being effectively guaranteed driving mechanism are not influenced by gas attack, and finally, water filling liquid can
Flowed out by the outlet of waterflood path in the case where driving mechanism drives changeover valve mechanism, water filling work is completed.
In one possible implementation, injection well downhole flow regulator further includes retaining ring；
The threaded one end of shell is connected to one end of the second connector, and the other end of shell is sealed in first by retaining ring and connects
The wall surface of head.
In above scheme, a kind of shell, the first connector and the second connector assembly method in the cards are provided, wherein
One end of shell is connect with the second joint screw thread, and the other end of shell is connect by retaining ring with the first joint sealing, so that outside
The sealing cavity with excellent sealing effect is formed between the inner cavity of shell and the first connector and the end face of the second connector, together
When, due to be connected through a screw thread and retaining ring clamp fit system so that between shell, the first connector and the second connector
Assembly technology be simple and efficient, also replacement easy to disassemble.
Optionally, in one possible implementation, the end face of the second connector offers intake chamber, the bottom end of intake chamber
It is extended with the conduit pipe of connection waterflood path；
Changeover valve mechanism includes rotary valve and water nozzle, and water nozzle is fixed in waterflood path, and water nozzle, which has, to be interconnected
Water inlet and water outlet, water outlet is connected to the outlet of waterflood path, and water inlet is connected to conduit pipe, and waterflood path passes through water
Mouth and conduit pipe are connected to sealing cavity；
One end of rotary valve and driving mechanism are sequentially connected, and the other end of rotary valve has sealing convex block, seal convex block
It is configured to that water inlet is closed or opened under the driving of driving mechanism.
In above scheme, a kind of specific structure in the cards that waterflood path is connected to sealing cavity is provided, and
A kind of specific structure in the cards of changeover valve mechanism, wherein after water filling liquid is flowed out by the limbers that mainstream is threaded a pipe,
The gap between driving mechanism, changeover valve mechanism is filled, waterflood path is flowed by intake chamber, conduit pipe.Wherein, rotary valve
Door machine structure includes rotary valve and water nozzle, and rotary valve and driving mechanism are sequentially connected, and driving mechanism can make rotary valve rotate,
The rotation of rotary valve can determine the aperture that seals convex block of the water inlet compared to rotary valve of water nozzle, to control water filling liquid
The flow of the water outlet of water nozzle is flowed through by the water inlet of water nozzle.
Optionally, in one possible implementation, injection well downhole flow regulator further includes water inlet pipe, water inlet pipe it is closed at one end, into
The other end of water pipe is connected to intake chamber, and one section close to the first connector of water inlet pipe offers through-hole.Water inlet pipe is provided with stream
Quantity sensor.
In above scheme, a kind of specific structure of control water filling liquid flow direction is provided, wherein increase water inlet pipe, make
Liquid must be filled the water to flow through the limbers of major flow pipeline, sealing cavity, water inlet pipe, intake chamber, conduit pipe, eventually enter into water filling
In channel, wherein the position that water inlet pipe is connected to sealing cavity is located at water inlet pipe at the position of the first connector, by above-mentioned
Design, so that after the limbers outflow that water filling liquid is threaded a pipe through mainstream enters sealing cavity, in sealing cavity further
Filling, floods driving mechanism, is finally just entered in water inlet pipe by one section of through-hole opened up close to the first connector of water inlet pipe, is had
It ensure that driving mechanism is not influenced by etchant gas to effect, while also avoiding occurring gas in sealing cavity.
Optionally, in one possible implementation, water nozzle tool is diamond shape there are two water injection hole, the section of water injection hole,
The import of two water injection holes is located remotely from each other, and the outlet of two water injection holes is close to each other；
The quantity for sealing convex block is two, and two sealing convex blocks cooperate with the import of water injection hole respectively, so that sealing convex block
Water injection hole can be blocked under the driving of driving mechanism.
In above scheme, the specific structure of water nozzle is provided, passes through the cooperation of above-mentioned water injection hole and sealing convex block, Neng Gouqu
Obtained the linearisation that good every angle closes area, the accurate water filling of better implementation controls.
Optionally, in one possible implementation, the end face of water nozzle is provided with a shop bolt, and shop bolt is used
Convex block is sealed in abutting.
In above scheme, shop bolt defines the angle of rotary valve rotation, wherein one for abutting sealing convex block
During kind is possible, when one of sealing convex block is resisted against shop bolt when rotated, represents two sealing convex blocks and seal completely
Two water injection holes are blocked up, the flow for filling the water liquid at this time is zero, is determined when another sealing convex block therein is resisted against when rotated
It when the pin of position, represents two sealing convex blocks and has fully opened two water injection holes, fill the water the maximum flow of liquid at this time.
Optionally, in one possible implementation, the outer wall of the second connector offers pin shaft hole, the peripheral wall shape of water nozzle
At there is alignment concavity；
Water nozzle is arranged in pin shaft hole by locking pin and is resisted against alignment concavity to be fixed in waterflood path.
In above scheme, the fit structure that a kind of water nozzle is assemblied in the second connector is provided, wherein water nozzle is logical by filling the water
It is placed in road, by locking pin against to be fixed in waterflood path, above-mentioned assembling structure is simple and effective, easily fabricated.
Optionally, in one possible implementation, the end face of rotary valve offers square hole, the output shaft of driving mechanism
It is embedded in square hole；
Output sleeve is equipped with motor spring, and motor spring is between rotary valve and driving mechanism.
Optionally, in one possible implementation, injection well downhole flow regulator further includes cable；
Driving mechanism includes controller and motor, and controller and electrical connection of motor, controller are located in sealing cavity, electricity
Machine is connect with changeover valve mechanism driving；
Second connector has cable passage, and cable is entered in sealing cavity by cable passage and electrically connected with controller
It connects.
In above scheme, driving mechanism includes the condition that controller makes the injection well downhole flow regulator with data transmission, motor control,
Conducive to the work requirements of injection well downhole flow regulator.
Optionally, in one possible implementation, injection well downhole flow regulator further includes sand prevention valve and sand control plug；
Second connector has the sand control channel of connection waterflood path, and sand control plug is fixed on the outer end in sand control channel, sand control
Valve is located in sand control channel, has spring between sand prevention valve and sand control plug, it is logical that sand prevention valve blocks water filling under the action of the spring
The outlet in road.
In above scheme, when stopping filling the water due to injection well downhole flow regulator, the pressure in injection well downhole flow regulator is consistent with annular pressure, to avoid ring
Liquid band sand in sky enters in waterflood path, increases sand prevention valve, spring and sand control plug.When injection well downhole flow regulator is filled the water
When, under the action of pressure difference, water filling liquid will push sand control plug, overcome the elastic force of spring mobile, to fill the water liquid energy
Enough outlets by waterflood path are discharged, and when stopping water filling, sand prevention valve blocks the outlet of waterflood path under the action of the spring, with
Realize the effect of sand control.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is structural schematic diagram of the injection well downhole flow regulator under the first visual angle in the embodiment of the present application；
Fig. 2 is the enlarged drawing in Fig. 1 at II；
Fig. 3 is structural schematic diagram of the injection well downhole flow regulator under the second visual angle in the embodiment of the present application；
Fig. 4 is structural schematic diagram of second connector under the first visual angle in the embodiment of the present application；
Fig. 5 is structural schematic diagram of the injection well downhole flow regulator under third visual angle in the embodiment of the present application；
Fig. 6 is the enlarged drawing in Fig. 5 at VI；
Fig. 7 is structural schematic diagram of the water nozzle under the first visual angle in the embodiment of the present application；
Fig. 8 is structural schematic diagram of the water nozzle under the second visual angle in the embodiment of the present application；
Fig. 9 is the structural schematic diagram of rotary valve in the embodiment of the present application；
Figure 10 is structural schematic diagram of the injection well downhole flow regulator under the 4th visual angle in the embodiment of the present application；
Figure 11 is the assembling schematic diagram of water nozzle and rotary valve in the embodiment of the present application；
Figure 12 is structural schematic diagram of second connector under the second visual angle in the embodiment of the present application；
Figure 13 is structural schematic diagram of second connector under third visual angle in the embodiment of the present application.
Icon: 10- injection well downhole flow regulator；10a- shell；The first connector of 11-；The second connector of 12-；12a- locking pin；12b- plug screw
Button；12c- woodruff key；13- mainstream is threaded a pipe；14- changeover valve mechanism；15- driving mechanism；15a- motor spring；16- locking
Ring；17- water inlet pipe；18a- sand prevention valve；18b- sand control plug；18c- spring；The first mainstream channel of 81-；The second major flow of 82-
Road；90- waterflood path；90a- intake chamber；90b- conduit pipe；90c- cable passage；90d- pressure and temp integral sensor
Interface；The limbers 130-；140- rotary valve；140a- seals convex block；141- water nozzle；141a- water injection hole；141b- shop bolt；
141c- alignment concavity；170- through-hole.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present application, it is to be understood that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
This application product using when the orientation or positional relationship usually put or those skilled in the art usually understand
Orientation or positional relationship, be merely for convenience of description the application and simplify description, rather than the equipment of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the embodiment of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, above-mentioned term in this application specific can be understood with concrete condition
Meaning.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Below in conjunction with attached drawing, the technical solution in the application is described.
The present embodiment provides a kind of injection well downhole flow regulator 10, which be can effectively solve the problem that in injection well downhole flow regulator 10 in the prior art
Executive component the problem do not grown of service life.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 shows specific structure of the injection well downhole flow regulator 10 under the first visual angle in the present embodiment.
Fig. 2 is the enlarged drawing in Fig. 1 at II.
Injection well downhole flow regulator 10 includes that shell 10a, the first connector 11, the second connector 12, mainstream are threaded a pipe 13, changeover valve mechanism 14
And driving mechanism 15.First connector 11 has the first mainstream channel 81.Second connector 12 has mutually independent waterflood path
90 and second mainstream channel 82.Thread a pipe 13 peripheral wall of mainstream offers limbers 130, and thread a pipe 13 one end of mainstream is connected to
First connector 11 is simultaneously connected to the first mainstream channel 81, and thread a pipe 13 other end of mainstream is connected to the second connector 12 and with second
Mainstream channel 82 is connected to, and shell 10a is set between the first connector 11 and the second connector 12, shell 10a, the first connector 11 and the
Two connectors 12 limit sealing cavity jointly, and mainstream threads a pipe 13 in sealing cavity, and sealing cavity is connected to waterflood path 90.
Changeover valve mechanism 14 is located in waterflood path 90.Driving mechanism 15 connect with changeover valve mechanism 14 and for driving rotary valve
Door machine structure 14 is to be connected or be truncated waterflood path 90.
Wherein, which can be effectively protected in water filling (layering water distribution) use process for driving rotation
The driving mechanism 15 of valve mechanism 14 enables to the driving mechanism 15 (executive component) to be in safety, corrosion-free gas
Environment in.
Wherein, the top connection and lower contact in the first connector 11 and the second connector 12 respectively this field, the first connector 11,
Major flow conduit and the second connector 12 are sequentially connected, 13 and so that the first mainstream channel 81 of the first connector 11, mainstream are threaded a pipe
Second mainstream channel 82 of the second connector 12 is sequentially communicated, and water filling liquid is imported by the first mainstream channel 81 of the first connector 11
It flows through mainstream and threads a pipe the 13, second mainstream channel 82 to realize and carry out that water distribution (multiple water distributions can be layered to the stratum of different depth
The sliceable use of device 10, to realize the stratum work of different depth).Wherein, the waterflood path 90 in the second connector 12 is for infusing
Water (water distribution) is to keep strata pressure.To guarantee that the driving mechanism 15 for controlling water filling aperture is in corrosion-free gas at work
In environment, thread a pipe 13 periphery of the first connector 11, the second connector 12 and mainstream is additionally provided with shell 10a, shell 10a,
One connector 11 and the second connector 12 limit sealing cavity jointly, and the waterflood path 90 of the second connector 12 is connected to sealing cavity.It is main
Circulation duct 13 is located in sealing cavity, offers limbers 130 in the peripheral wall of mainstream channel, is imported by the first mainstream channel 81
Water filling liquid can thread a pipe in mainstream and flowed into sealing cavity by limbers 130 in 13, water filling liquid flows to the second connector
12 waterflood path 90, before flowing to waterflood path 90, water filling liquid is first filled with cavity locating for driving mechanism 15, so that
Full of water filling liquid at the position of the transmission connection of driving mechanism 15 and changeover valve mechanism 14, so that driving mechanism 15 is exposed to
The outer and component that connect with changeover valve mechanism 14 in the environment by water filling hydraulic seal, avoid contacted with gas can
Energy property, the transmission parts for being effectively guaranteed driving mechanism 15 are not influenced by gas attack, and finally, water filling liquid can drive
It in the case that motivation structure 15 drives changeover valve mechanism 14, is flowed out by the outlet of waterflood path 90, completes water filling work.
Optionally, in a kind of embodiment of possible realization, water distribution in the present embodiment is shown incorporated by reference to Fig. 3, Fig. 3
Specific structure of the device 10 under the second visual angle.
Injection well downhole flow regulator 10 further includes retaining ring 16, and the threaded one end of shell 10a is connected to one end of the second connector 12, shell
The other end of 10a is sealed in the wall surface of the first connector 11 by retaining ring 16.
Wherein, above provide a kind of shell 10a, the first connector 11 and the assembly method in the cards of the second connector 12,
Wherein, one end of shell 10a is threadedly coupled with the second connector 12, and the other end of shell 10a passes through retaining ring 16 and the first connector
11 are tightly connected, so that forming one between the inner cavity of shell 10a and the first connector 11 and the end face of the second connector 12 with good
The sealing cavity of good sealing effect, simultaneously as be connected through a screw thread and retaining ring 16 clamp fit system so that outside
Assembly technology between shell 10a, the first connector 11 and the second connector 12 is simple and efficient, also replacement easy to disassemble.
It should be noted that shell 10a, the first connector 11 and the second connector 12 are by removably in the present embodiment
What assembly method was attached, it, can be direct after completing the assembly of 10 internal part of injection well downhole flow regulator in other specific embodiments
Shell 10a is welded between the first connector 11 and the second connector 12, a kind of structure of integrally connected is formed.
Optionally, in a kind of embodiment of possible realization, Fig. 4, Fig. 5 and Fig. 6 are referred to, Fig. 4 shows this
Specific structure of second connector 12 under the first visual angle in embodiment, Fig. 5 show injection well downhole flow regulator 10 in the present embodiment and regard in third
Specific structure under angle.Fig. 6 is the enlarged drawing in Fig. 5 at VI.
The end face of second connector 12 offers intake chamber 90a, and the bottom end of intake chamber 90a is extended with connection waterflood path 90
Conduit pipe 90b.
Changeover valve mechanism 14 includes rotary valve 140 and water nozzle 141.
Incorporated by reference to Fig. 7, Fig. 8 and Fig. 9, wherein Fig. 7 shows tool of the water nozzle 141 under the first visual angle in the present embodiment
Body structure, Fig. 8 show specific structure of the water nozzle 141 under the second visual angle in the present embodiment, and Fig. 9, which is shown in the present embodiment, to be revolved
The specific structure of rotary valve 140.
Water nozzle 141 is fixed in waterflood path 90, and water nozzle 141 has interconnected water inlet and water outlet, water outlet
The outlet of mouth connection waterflood path 90, water inlet are connected to conduit pipe 90b, and waterflood path 90 passes through water nozzle 141 and conduit pipe
90b is connected to sealing cavity.One end of rotary valve 140 and driving mechanism 15 are sequentially connected, and the other end of rotary valve 140 has
Convex block 140a is sealed, sealing convex block 140a is configured to that water inlet is closed or opened under the driving of driving mechanism 15.
Wherein, in conjunction with Fig. 1 and Fig. 5 can be seen that water filling liquid by mainstream thread a pipe 13 limbers 130 flow out after, fill out
The gap between driving mechanism 15, changeover valve mechanism 14 is filled, waterflood path 90 is flowed by intake chamber 90a, conduit pipe 90b.
Wherein, changeover valve mechanism 14 includes rotary valve 140 and water nozzle 141, and rotary valve 140 and driving mechanism 15 are driven
Connection, driving mechanism 15 can make rotary valve 140 rotate, and the rotation of rotary valve 140 can determine the water inlet phase of water nozzle 141
Compared with the aperture of the sealing convex block 140a of rotary valve 140, water nozzle is flowed through by the water inlet of water nozzle 141 to control water filling liquid
The flow of 141 water outlet.
It should be noted that rotary valve 140 and water nozzle 141 are respectively positioned in waterflood path 90 it can be seen from Fig. 5,
The part that changeover valve mechanism 14 and rotary valve 140 are driven also is located in waterflood path 90, the position the location of conduit pipe 90b
Between rotary valve 140 and water nozzle 141.
Optionally, it in a kind of embodiment of possible realization, shows in the present embodiment and matches incorporated by reference to Figure 10, Figure 10
Specific structure of the hydrophone 10 under the 4th visual angle.At this point, Figure 10 cancels display shell 10a, it is described below to be apparent from
Structure.
Injection well downhole flow regulator 10 further includes water inlet pipe 17, water inlet pipe 17 it is closed at one end, the other end of water inlet pipe 17 is connected into water
One section close to the first connector 11 of slot 90a, water inlet pipe 17 offer through-hole 170.
Wherein, increase water inlet pipe 17 so that water filling liquid flow through the limbers 130 of major flow pipeline 13, sealing cavity,
Water inlet pipe 17, conduit pipe 90b, eventually enters into waterflood path 90 intake chamber 90a, wherein water inlet pipe 17 and sealing cavity connect
Logical position is located at water inlet pipe 17 at the position of the first connector 11, by above-mentioned design, so that water filling liquid is through major flow
After the outflow of limbers 130 of pipeline 13 enters sealing cavity, is further filled in sealing cavity, floods driving mechanism 15,
Finally just entered in water inlet pipe 17 by the through-hole 170 of water inlet pipe 17 opened up close to one section of the first connector 11, is effectively guaranteed
Driving mechanism 15 is not influenced by etchant gas, while also avoiding occurring gas in sealing cavity.
Optionally, in a kind of embodiment of possible realization, there are two water injection hole 141a, (it is limited the tool of water nozzle 141
The interconnected water inlet and water outlet of water nozzle 141), the section of water injection hole 141a is diamond shape, two water injection hole 141a's
Import is located remotely from each other, and the outlet of two water injection hole 141a is close to each other.The quantity for sealing convex block 140a is two, two sealing convex blocks
140a cooperates with the import of water injection hole 141a respectively, so that sealing convex block 140a can be blocked under the driving of driving mechanism 15
Water injection hole 141a.
Referring again to Fig. 7 and Fig. 8, by the design of diamond shape, the cooperation of water injection hole 141a and sealing convex block 140a can
Achieve the linearisation that good every angle closes area, the accurate water filling control of better implementation, simultaneously as two fill the water
The import of hole 141a is located remotely from each other, and the outlet of two water injection hole 141a is close to each other, so that water filling liquid is flowing through water injection hole
Boundling is able to carry out when 141a, to improve the discharge pressure of water filling liquid.
1, Figure 11 shows the assembly effect of water nozzle 141 and rotary valve 140 in the present embodiment referring to Figure 1.
The end face of water nozzle 141 is provided with a shop bolt 141b, and shop bolt 141b is for abutting sealing convex block 140a.
Shop bolt 141b defines the angle that rotary valve 140 rotates, wherein one for abutting sealing convex block 140a
During kind is possible, when one of sealing convex block 140a is resisted against shop bolt 141b when rotated, it is convex to represent two sealings
Block 140a has blocked two water injection hole 141a completely, and the flow for filling the water liquid at this time is zero, when another sealing convex block therein
When 140a is resisted against shop bolt 141b when rotated, represents two sealing convex block 140a and fully opened two water injection holes
141a fills the water the maximum flow of liquid at this time.
Optionally, in a kind of embodiment of possible realization, Fig. 2 is referred to, the outer wall of the second connector 12 offers
Pin shaft hole, the peripheral wall of water nozzle 141 are formed with alignment concavity 141c.Water nozzle 141 by locking pin 12a be arranged in pin shaft hole and against
In alignment concavity 141c to be fixed in waterflood path 90.Wherein, locking pin 12a is sealed in pin shaft hole by plug screw button 12b.
Wherein, water nozzle 141 in waterflood path 90 by being placed in, by locking pin 12a against to be fixed on waterflood path
In 90, above-mentioned assembling structure is simple and effective, easily fabricated.
Optionally, in a kind of embodiment of possible realization, the end face of rotary valve 140 offers square hole, driving machine
The output shaft of structure 15 is embedded in square hole.Output sleeve is equipped with motor spring 15a, and motor spring 15a is located at rotary valve 140 and drives
Between motivation structure 15.
It should be noted that in other specific embodiments, the output axis connection of rotary valve 140 and driving mechanism 15
Structure is not limited to cavernous structure, can be the structures such as convex block, can be realized the transmission connection of output shaft and rotary valve 140 i.e.
It can.Simultaneously, it should be noted that 2, Figure 12 shows specific structure of second connector 12 under the second visual angle referring to Figure 1.
The inner wall of the waterflood path 90 of second connector 12 is provided with woodruff key 12c, and woodruff key 12c is fixed on waterflood path 90
Groove in, the plane of woodruff key 12c is closely attached on the peripheral wall of driving mechanism 15, and reason is that motor spring 15a is being driven
The compression of motivation structure 15 can make rotary valve 140 pass to 141 1 pretightning forces of water nozzle, the purpose of woodruff key 12c be so that
The output shaft that driving mechanism 15 is able to bear driving mechanism 15 generates reaction torque when rotation.
Wherein, optionally, in a kind of embodiment of possible realization, injection well downhole flow regulator 10 further includes that cable (does not show in figure
Out).
Driving mechanism 15 includes controller and motor, and controller and electrical connection of motor, controller are located in sealing cavity,
Motor and changeover valve mechanism 14 are sequentially connected.
3, Figure 13 shows specific structure of second connector 12 under third visual angle referring to Figure 1.
Second connector 12 has cable passage 90c, and cable is entered in sealing cavity by cable passage 90c and and controller
It is electrically connected.
Wherein, driving mechanism 15 includes the condition that controller makes the injection well downhole flow regulator 10 with data transmission, motor control, benefit
In the work requirements of injection well downhole flow regulator 10.It should be noted that in controller in the present embodiment and injection well downhole flow regulator in the prior art
Controller is consistent, can control motor, it should be noted simultaneously that, motor can cooperate retarder to use, and pass through ground
By cable transmission conduction controller, (or the electric signal that wireless transmitting system provides is wirelessly transmitted to control to the electric signal that cable provides
In device, need), control motor rotation is acted by retarder, and control rotary valve 140 slowly rotates, to realize water nozzle 141
The folding and closing of mouth.
It should be noted that a flow sensor can also be arranged in water inlet pipe 17, flow sensor can be set in
In the intake chamber 90a of second connector 12, meanwhile, referring to Figure 12, a pressure temperature is additionally provided in the end face of the second connector 12
Integral sensor interface 90d is spent, pressure and temp integral sensor interface 90d is sensed for assembling pressure temperature integral type
Device, wherein flow sensor, flow sensor are all connected on cable, are electrically connected with controller, by controller
Data collecting module collected, and it is sent to ground installation.
Wherein, referring to FIG. 1, in one possible implementation, injection well downhole flow regulator 10 further includes sand prevention valve 18a and sand control
Plug 18b.Second connector 12 has the sand control channel of connection waterflood path 90, and sand control plug 18b is fixed on the outer of sand control channel
End, sand prevention valve 18a are located in sand control channel, have spring between sand prevention valve 18a and sand control plug 18b, sand prevention valve 18a is in spring
Under the action of block waterflood path 90 outlet.
Wherein, when stopping filling the water due to injection well downhole flow regulator 10, the pressure in injection well downhole flow regulator 10 is consistent with annular pressure, to avoid annular space
Interior liquid band sand enters in waterflood path 90, increases sand prevention valve 18a, spring 18c and sand control plug 18b.Work as water distribution
When device 10 is filled the water, under the action of pressure difference, water filling liquid will push sand control plug 18b, and the elastic force of spring 18c is overcome to move
It is dynamic, so that filling the water liquid can be discharged by the outlet of waterflood path 90, when stopping water filling, work of the sand prevention valve 18a in spring 18c
With it is lower block waterflood path 90 outlet, to realize the effect of sand control.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of injection well downhole flow regulator characterized by comprising
Shell；
First connector, first connector have the first mainstream channel；
Second connector, second connector have mutually independent waterflood path and the second mainstream channel；
Mainstream is threaded a pipe, and the peripheral wall that the mainstream is threaded a pipe offers limbers, and one end that the mainstream is threaded a pipe is connected to institute
It states the first connector and is connected to first mainstream channel, the other end that the mainstream is threaded a pipe is connected to second connector simultaneously
It being connected to second mainstream channel, the shell is set between first connector and second connector, the shell,
First connector and second connector limit sealing cavity jointly, and the mainstream is threaded a pipe in the sealing cavity,
The sealing cavity is connected to the waterflood path；
Changeover valve mechanism, the changeover valve mechanism are located in the waterflood path；And
Driving mechanism, the driving mechanism connect with the changeover valve mechanism and are used to drive the changeover valve mechanism to lead
Lead to or be truncated the waterflood path.
2. injection well downhole flow regulator according to claim 1, which is characterized in that further include:
Retaining ring；
The threaded one end of the shell is connected to one end of second connector, and the other end of the shell passes through the retaining ring
It is sealed in the wall surface of first connector.
3. injection well downhole flow regulator according to claim 1, which is characterized in that
The end face of second connector offers intake chamber, and the bottom end of the intake chamber, which is extended with, is connected to leading for the waterflood path
Aquaporin；
The changeover valve mechanism includes rotary valve and water nozzle, and the water nozzle is fixed in the waterflood path, the water nozzle
With interconnected water inlet and water outlet, the water outlet is connected to the outlet of the waterflood path, and the water inlet connects
Lead to the conduit pipe, the waterflood path is connected to by the water nozzle and the conduit pipe with the sealing cavity；
One end of the rotary valve and the driving mechanism are sequentially connected, and the other end of the rotary valve has sealing convex block,
The sealing convex block is configured to close or open the water inlet under the driving of the driving mechanism.
4. injection well downhole flow regulator according to claim 3, which is characterized in that further include
Water inlet pipe, the water inlet pipe it is closed at one end, the other end of the water inlet pipe is connected to the intake chamber, the water inlet pipe
Offer through-hole close to one section of first connector.
5. injection well downhole flow regulator according to claim 3, which is characterized in that
There are two water injection holes for the water nozzle tool, and the section of the water injection hole is diamond shape, and the import of two water injection holes is mutually remote
From the outlet of two water injection holes is close to each other；
The quantity of the sealing convex block is two, and two sealing convex blocks cooperate with the import of the water injection hole respectively, so that
The sealing convex block can block the water injection hole under the driving of the driving mechanism.
6. injection well downhole flow regulator according to claim 5, which is characterized in that
The end face of the water nozzle is provided with a shop bolt, and the shop bolt is for abutting the sealing convex block.
7. injection well downhole flow regulator according to claim 5, which is characterized in that
The outer wall of second connector offers pin shaft hole, and the peripheral wall of the water nozzle is formed with alignment concavity；
The water nozzle is arranged in the pin shaft hole by locking pin and is resisted against the alignment concavity to be led to being fixed on the water filling
In road.
8. injection well downhole flow regulator according to claim 5, which is characterized in that
The end face of the rotary valve offers square hole, and the output shaft of the driving mechanism is embedded in the square hole；
The output sleeve is equipped with motor spring, and the motor spring is between the rotary valve and the driving mechanism.
9. the injection well downhole flow regulator according to claim 1, which is characterized in that further include:
Cable；
The driving mechanism includes controller and motor, and the controller and the electrical connection of motor, the controller are located at
In the sealing cavity, the motor is connect with the changeover valve mechanism driving；
Second connector has a cable passage, the cable by the cable passage into the sealing cavity and with institute
State controller electric connection.
10. the injection well downhole flow regulator according to claim 1, which is characterized in that further include:
Sand prevention valve；And
Sand control plug；
Second connector has the sand control channel for being connected to the waterflood path, and the sand control plug is fixed on the sand control channel
Outer end, the sand prevention valve is located in the sand control channel, has spring between the sand prevention valve and the sand control plug, described
Sand prevention valve blocks the outlet of the waterflood path under the action of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565851.3A CN110206517B (en) | 2019-06-26 | 2019-06-26 | Water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565851.3A CN110206517B (en) | 2019-06-26 | 2019-06-26 | Water distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110206517A true CN110206517A (en) | 2019-09-06 |
| CN110206517B CN110206517B (en) | 2021-09-28 |
Family
ID=67794948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910565851.3A Active CN110206517B (en) | 2019-06-26 | 2019-06-26 | Water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206517B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682005A (en) * | 2020-12-29 | 2021-04-20 | 四川省科学城久利电子有限责任公司 | Novel water distributor adjusting structure |
| CN112696180A (en) * | 2020-12-29 | 2021-04-23 | 四川省科学城久利电子有限责任公司 | Water distributor adjusting structure |
| CN113374457A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Intelligent water distributor for separate layer water injection |
| CN116044354A (en) * | 2023-03-28 | 2023-05-02 | 东营市华科石油科技开发有限责任公司 | Interlayer interference-free water distribution regulator |
| CN117072122A (en) * | 2022-07-15 | 2023-11-17 | 中国石油工程建设有限公司 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825895A (en) * | 1987-06-16 | 1989-05-02 | Chevron Research Company | Water injection choke valve |
| CN1525041A (en) * | 2003-09-16 | 2004-09-01 | 贵州航天凯山石油仪器有限公司 | Automatic adjustment method for injection allocation quantity of oil field water injection well |
| CN2804383Y (en) * | 2005-06-13 | 2006-08-09 | 马文廷 | Sand preventer of eccentric water injection allocator |
| CN101706005A (en) * | 2009-11-24 | 2010-05-12 | 吴海鹰 | Rotary multi-level flux regulating valve |
| CN101936149A (en) * | 2010-09-17 | 2011-01-05 | 中国石油化工股份有限公司 | Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| CN203559889U (en) * | 2013-10-28 | 2014-04-23 | 中国石油化工股份有限公司 | Automatic adjustable water distributor |
| WO2015112908A2 (en) * | 2014-01-24 | 2015-07-30 | Cameron International Corporation | Systems and methods for polymer degradation reduction |
| CN204804794U (en) * | 2015-02-17 | 2015-11-25 | 赵华 | Eccentric remote intelligent water injection mandrel, intelligent seperated layer water injection tubular column and intelligent remote control and measurement device |
| CN205400676U (en) * | 2016-02-16 | 2016-07-27 | 山东大东联石油设备有限公司 | Ground hydraulic control's downhole safety valve |
| CN205532529U (en) * | 2016-01-29 | 2016-08-31 | 中国石油化工股份有限公司 | Piston control formula is prevented returning and is told eccentric injection mandrel |
| CN205532291U (en) * | 2016-03-29 | 2016-08-31 | 辽河石油勘探局 | Reamer |
| CN205858299U (en) * | 2016-06-27 | 2017-01-04 | 中国石油天然气股份有限公司 | Water distributor |
| CN106884636A (en) * | 2017-02-27 | 2017-06-23 | 长春中际互频科技有限公司 | Water injection well wireless power intelligent observing and controlling system based on mutual frequency principle |
| CN206309361U (en) * | 2016-11-23 | 2017-07-07 | 中国石油天然气股份有限公司 | Water nozzle with adjustable water mixing amount |
| CN208763632U (en) * | 2018-07-17 | 2019-04-19 | 任丘市荣昌石油机械设备制造有限公司 | Anti- return of one kind spits eccentric injection mandrel |
-
2019
- 2019-06-26 CN CN201910565851.3A patent/CN110206517B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825895A (en) * | 1987-06-16 | 1989-05-02 | Chevron Research Company | Water injection choke valve |
| CN1525041A (en) * | 2003-09-16 | 2004-09-01 | 贵州航天凯山石油仪器有限公司 | Automatic adjustment method for injection allocation quantity of oil field water injection well |
| CN2804383Y (en) * | 2005-06-13 | 2006-08-09 | 马文廷 | Sand preventer of eccentric water injection allocator |
| CN101706005A (en) * | 2009-11-24 | 2010-05-12 | 吴海鹰 | Rotary multi-level flux regulating valve |
| CN101936149A (en) * | 2010-09-17 | 2011-01-05 | 中国石油化工股份有限公司 | Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| CN203559889U (en) * | 2013-10-28 | 2014-04-23 | 中国石油化工股份有限公司 | Automatic adjustable water distributor |
| WO2015112908A2 (en) * | 2014-01-24 | 2015-07-30 | Cameron International Corporation | Systems and methods for polymer degradation reduction |
| CN204804794U (en) * | 2015-02-17 | 2015-11-25 | 赵华 | Eccentric remote intelligent water injection mandrel, intelligent seperated layer water injection tubular column and intelligent remote control and measurement device |
| CN205532529U (en) * | 2016-01-29 | 2016-08-31 | 中国石油化工股份有限公司 | Piston control formula is prevented returning and is told eccentric injection mandrel |
| CN205400676U (en) * | 2016-02-16 | 2016-07-27 | 山东大东联石油设备有限公司 | Ground hydraulic control's downhole safety valve |
| CN205532291U (en) * | 2016-03-29 | 2016-08-31 | 辽河石油勘探局 | Reamer |
| CN205858299U (en) * | 2016-06-27 | 2017-01-04 | 中国石油天然气股份有限公司 | Water distributor |
| CN206309361U (en) * | 2016-11-23 | 2017-07-07 | 中国石油天然气股份有限公司 | Water nozzle with adjustable water mixing amount |
| CN106884636A (en) * | 2017-02-27 | 2017-06-23 | 长春中际互频科技有限公司 | Water injection well wireless power intelligent observing and controlling system based on mutual frequency principle |
| CN208763632U (en) * | 2018-07-17 | 2019-04-19 | 任丘市荣昌石油机械设备制造有限公司 | Anti- return of one kind spits eccentric injection mandrel |
Non-Patent Citations (1)
| Title |
|---|
| 赵钦瑞,龙远强,李兴: "大斜度分注井测调一体化工艺配套研究与应用", 《复杂油气藏,》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682005A (en) * | 2020-12-29 | 2021-04-20 | 四川省科学城久利电子有限责任公司 | Novel water distributor adjusting structure |
| CN112696180A (en) * | 2020-12-29 | 2021-04-23 | 四川省科学城久利电子有限责任公司 | Water distributor adjusting structure |
| CN113374457A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Intelligent water distributor for separate layer water injection |
| CN113374457B (en) * | 2021-07-07 | 2022-05-03 | 中国石油化工股份有限公司 | Intelligent water distributor for separate layer water injection |
| CN117072122A (en) * | 2022-07-15 | 2023-11-17 | 中国石油工程建设有限公司 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
| CN117072122B (en) * | 2022-07-15 | 2024-02-06 | 中国石油工程建设有限公司 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
| CN116044354A (en) * | 2023-03-28 | 2023-05-02 | 东营市华科石油科技开发有限责任公司 | Interlayer interference-free water distribution regulator |
| CN116044354B (en) * | 2023-03-28 | 2023-09-26 | 东营市华科石油科技开发有限责任公司 | Interlayer interference-free water distribution regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110206517B (en) | 2021-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206517A (en) | A kind of injection well downhole flow regulator | |
| US10626704B2 (en) | Intelligent switching valve for reservoir reformation and production monitoring and control and construction method therefor | |
| RU2422618C1 (en) | System (versions) and procedure for production of natural raw stock by injection of heated fluid medium | |
| CN201225149Y (en) | Downhole slurry pulse generator | |
| CN107044276B (en) | Novel intelligence well cementation sliding sleeve | |
| CN106761604B (en) | A kind of high angle hole intelligence separate-layer production string and its operational method | |
| CN210918981U (en) | Novel underground agent injection valve | |
| CN103452524B (en) | Water injection well with can electric well flushing packer and can electric well flushing insert sealing | |
| CN104179484B (en) | In a kind of, magnetic flowmeter formula intelligence can pulling distributor | |
| CN105239960A (en) | One-way underground well shut-in circulating valve and working method thereof | |
| CN203626722U (en) | Sealed cementing device | |
| CN105672960B (en) | A kind of direct-reading type down-hole oil production by layer method and its device | |
| CN103452496A (en) | Injection-production integrated automatic switching production joint for thick oil thermal production well | |
| CN103352678B (en) | Layering continuously adjustabe injection allocation apparatus is selected in the poly-water filling of note | |
| CN204920925U (en) | Accurate eccentric water filling tool of oil -field flooding well | |
| CN218542227U (en) | One-level double-control wave code communication intelligent production allocator for oil well separate-layer mining | |
| CN104019030B (en) | A kind of reacting cycle liquid drives the discharge device of oil pumping screw pump | |
| CN115749626A (en) | Three-way ball valve type multifunctional drilling circulation nipple | |
| CN217380493U (en) | Toe end sleeve sliding sleeve with electric control delay | |
| CN109736789A (en) | Well killing method for whole process of formation testing | |
| CN112855100B (en) | Underground in-situ fixed online profile control and drive device, tubular column and method | |
| CN209603954U (en) | Horizontal well cable-passing intelligent water distributor and horizontal well underground segmented water injection pipe column | |
| CN208718592U (en) | Underground helicoid hydraulic motor antiseize device | |
| RU2653210C2 (en) | Method for interval oil production from a multiple zone well and a packerless pumping plant for implementation thereof | |
| CN104131802B (en) | A kind of straight valve type stratification injection allocator with special-shaped inlet |
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 |