CN117072122A - High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof - Google Patents
High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof Download PDFInfo
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- CN117072122A CN117072122A CN202210854464.3A CN202210854464A CN117072122A CN 117072122 A CN117072122 A CN 117072122A CN 202210854464 A CN202210854464 A CN 202210854464A CN 117072122 A CN117072122 A CN 117072122A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a high temperature resistant, high pressure resistant water distributor suitable for large depth well, comprising: the water distributor comprises a water distributor main body, an upper connector and a lower connector, wherein the control valve comprises a control valve main body and an adjusting device; a control valve cavity is formed in the control valve main body, and a sealing piece is arranged in the control valve cavity in a sliding sealing manner; the control valve cavity is provided with a control valve water inlet hole and a control valve water outlet hole which are arranged in a staggered way; the adjusting device comprises a motor and a screw rod, and the tail end of the screw rod extends into the control valve cavity and is fixedly connected with the sealing element; the motor drives the sealing piece to slide in the control valve cavity through the lead screw, so that the opening of the water outlet hole of the control valve is adjusted; the invention also discloses a using method of the high-temperature-resistant high-pressure-resistant water distributor suitable for the large-depth well, and the water distributor adopts a two-layer sealing structure to complete the sealing function and ensure the sealing effectiveness; the control valve adopts a balance pressure design, so that the power consumption is reduced.
Description
Technical Field
The invention relates to the technical field of intelligent oil exploitation split injection technology and equipment, in particular to a high-temperature-resistant high-pressure-resistant water distributor suitable for a large-depth well and a use method thereof.
Background
In the middle and later stages of oil well acquisition, water needs to be injected into the stratum to compensate the stratum pressure, so that the purpose of improving the crude oil acquisition amount is achieved. The water injection process goes through 4 stages:
1. and when the flow of each layer is regulated, the logging and regulating instrument is required to be lowered to the corresponding water distribution layer through the logging engineering truck and the lubricator, the mechanical arm is opened to be in butt joint with the water nozzle, and the water injection flow can be regulated only if the butt joint is successful.
Disadvantages: the engineering vehicle construction is needed, the success rate of the butt joint of the water nozzle is low, the water nozzle has a plurality of faults, and the labor operation is carried out.
2. The concentric survey and adjustment water injection system does not need to throw a labor water nozzle, and the survey and adjustment instrument is also required to be lowered to a corresponding water distribution layer through the well logging engineering truck and the lubricator, a mechanical arm butt joint groove is opened, the flow is adjusted after the butt joint is successful, and the process of installing the lubricator and the lower instrument of the well logging engineering truck exists.
Disadvantages: and the engineering vehicle is required to be constructed and regulated, and the underground butt joint is realized.
3. The cable-based water injection system comprises a water injection layer, a water distributor, a controller, a ground controller, a temperature, a pressure, an opening and the like, wherein the water distributors are arranged on each water injection layer, the water distributors on each layer are connected in series from a cable below a wellhead, the controller is arranged at a well site and supplies power to the underground water distributors through the cable and sends commands, and the underground water distributors upload data such as flow, temperature, pressure, opening and the like to the ground controller in real time through the cable.
The advantages are that: the tuning data can be adjusted and read in real time.
Disadvantages: the construction is complex, the construction period is long, and the operation under pressure is not possible.
4. The wave code communication no-cable separate injection system is characterized in that each water injection layer is provided with a water distributor, a well site is provided with a ground controller, coding is completed, the flow of each layer is respectively controlled, meanwhile, the controller is also connected with a remote control center, the remote control center collects well site data in real time and issues control commands, and the flow of each layer is adjusted.
The advantages are that: the construction is simple, the operation can be carried out under pressure, and the method is suitable for highly-inclined wells.
In recent years, aiming at the problems of low water driving degree and rapid natural decrease of low permeability reservoirs, each oil field expands the application scale of separate-layer water injection. The water distributor used in the past split injection process cannot be suitable for high-temperature high-pressure large-depth water injection wells, and the average split injection qualification rate can be reduced after 3 months, so that the requirement of fine water injection in an oil field cannot be met. And the construction is complex, the cost is high, and the maintenance cost is high.
Disclosure of Invention
The invention aims to provide a water distributor which is high-temperature resistant, high-pressure resistant and suitable for a large-depth well and a use method thereof.
The invention provides a high temperature and pressure resistant water distributor suitable for a large-depth well, comprising:
a water distributor body comprising a flow conduit, a first conduit, a second conduit and a hollow outer shield; the overflow pipeline, the first pipeline and the second pipeline are all arranged in the outer protection pipe; the overflow pipeline is used for supplying water to flow; the first pipeline is used for splitting the water flow in the partial overflow pipeline; the second pipeline is used for setting a control valve;
the head end of the water distributor main body is connected with the upper joint in a sealing way; the upper joint is provided with a water distribution inlet communicated with the head end of the overflow pipeline;
the tail end of the water distributor main body is connected with the lower connector in a sealing way; the lower joint is provided with a water distribution outlet communicated with the tail end of the overflow pipeline;
wherein:
the control valve comprises a control valve main body and an adjusting device;
a control valve cavity is formed in the control valve main body, and a sealing piece is arranged in the control valve cavity in a sliding sealing manner; the control valve cavity is provided with a control valve water inlet hole and a control valve water outlet hole which are arranged in a staggered way;
the adjusting device comprises a motor and a screw rod; an output shaft of the motor is fixedly connected with the head end of the lead screw, and the tail end of the lead screw extends into the control valve cavity and is fixedly connected with the sealing element; the motor drives the sealing piece to slide in the control valve cavity through the lead screw, so that the opening of the water outlet hole of the control valve is adjusted;
the outer protective tube is provided with a water outlet;
the flow passage pipeline is communicated with the head end of the first pipeline through a flow distribution channel;
the tail end of the first pipeline is communicated with the water inlet of the control valve through a water outlet channel;
and the water outlet of the control valve is communicated with the water outlet.
Preferably, the periphery of the screw is provided with a left pressure-bearing component and a right pressure-bearing component which are outwards protruded; the left pressure bearing assembly and the right pressure bearing assembly are both positioned in the control valve cavity; the peripheries of the left pressure-bearing component and the right pressure-bearing component are clung to the inner wall of the control valve cavity;
the left pressure-bearing assembly and the right pressure-bearing assembly are separated by a distance, the left pressure-bearing assembly is positioned close to the head end of the screw rod, and the left pressure-bearing assembly is positioned far away from the head end of the screw rod;
the left pressure-bearing assembly, the right pressure-bearing assembly and the inner wall of the control valve cavity are enclosed to form a third pipeline, and the control valve water inlet hole, the third pipeline and the control valve water outlet hole are jointly used as a liquid outlet channel.
Preferably, the left and right pressure bearing assemblies have the same cross-sectional area.
Preferably, an orifice plate is arranged in the first pipeline;
the first pipeline is respectively provided with a flow sensor in front of the orifice plate and a flow sensor behind the orifice plate at two sides of the orifice plate; the flow sensor before the orifice plate and the flow sensor after the orifice plate are used for measuring flow.
Preferably, the number of the pore plates is two, and the two pore plates are arranged at intervals; the two pore plates together form a pore plate group;
the flow sensor before the orifice plate and the flow sensor after the orifice plate are respectively arranged at two sides of the orifice plate group.
Preferably, the right pressure-bearing assembly comprises three pressure-bearing plates which are arranged at intervals, and the peripheries of the three pressure-bearing plates are clung to the inner wall of the control valve cavity.
Preferably, the sealing element is sleeved at the tail end of the screw rod, and the screw rod can rotate relative to the sealing element.
Preferably, the water dispenser body further comprises a fourth conduit; the fourth pipeline is arranged in the outer protective pipe, and an outer pressure sensor is arranged in the fourth pipeline; the external pressure sensor is used for measuring the tightness in the external protection tube.
Preferably, the water distributor main body further comprises a fifth pipeline, the fifth pipeline is arranged in the outer protection pipe, and an AD module and an MCU module are arranged in the fifth pipeline;
and the flow sensor before the pore plate, the flow sensor after the pore plate and the external pressure sensor are connected with the MCU module through signals.
The invention also provides a using method of the high-temperature-resistant high-pressure-resistant water distributor suitable for the large-depth well, which comprises the following steps of:
introducing water flow into the overflow pipeline, and enabling partial water flow in the overflow pipeline to enter the first pipeline through the diversion channel; the water flow in the first pipeline passes through the water outlet channel and enters the control valve cavity from the water inlet hole of the control valve; controlling water flow in the valve cavity to flow out from the water outlet through the water outlet hole of the control valve;
the motor drives the sealing piece to slide in the control valve cavity through the lead screw, and the control valve cavity is adjusted to cover the water outlet hole of the control valve, so that the opening of the water outlet hole of the control valve is adjusted.
Compared with the prior art, the invention has the beneficial effects that:
the water distributor adopts a two-layer sealing structure, and the first layer sealing structure is formed by a closed space formed by a flow passage and an outer protective tube. The second layer sealing structure is an independent sealing structure formed by the first pipeline, the second pipeline and the like. When the first layer sealing structure fails, the second layer sealing structure completes the sealing function, so that the sealing effectiveness is ensured, the maintenance cost is reduced, and a better heat insulation and pressure isolation effect can be achieved.
The control valve adopts a balance pressure design, and the water injection pressure of the left pressure bearing surface and the right pressure bearing surface is balanced, so that the load is greatly reduced when the opening degree of the liquid outlet channel is regulated, the current required by the motor is smaller, the overall power consumption is small, and the service life of the water distributor can be prolonged.
Drawings
FIG. 1 is a schematic view of a high temperature, high pressure resistant water distributor of the present invention suitable for use in large depth wells;
FIG. 2 is a schematic view of the internal structure of the water dispenser;
FIG. 3 is a J-J sectional view of the dispenser body;
FIG. 4 is a cross-sectional view in the L-L direction of the body of the water dispenser;
FIG. 5 is a cross-sectional view of the water dispenser body in the M-M direction;
FIG. 6 is a schematic structural view of a control valve;
fig. 7 is a block diagram of a signal control system.
In the figure:
1-a water distributor body; 101-a water outlet; 2-upper joint; 3-lower joint; 4-overflow pipeline; 5-a first pipe; 6-a second pipe; 7-a control valve; 701-controlling a valve water inlet; 702-controlling a valve water outlet hole; 8-a control valve body; 801—a control valve cavity; 9-adjusting means; 10-an electric motor; 11-screw rod; 111-left pressure bearing assembly; 112-right pressure bearing assembly; 113-a pressure-bearing disc; 12-a seal; 13-a third pipe; 14-well plates; 141—an orifice plate front flow sensor; 142-orifice plate rear flow sensor; 15-a shunt channel; 16-a water outlet channel; 17-fourth piping; 18-an external pressure sensor; 19-an MCU module; a 20-AD module; 21-an outer protective tube; 22-water distribution inlet; 23-a water distribution outlet; 24-fifth pipeline.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is described in further detail below with reference to fig. 1-7:
the invention provides a high temperature and pressure resistant water distributor suitable for a large-depth well, comprising:
a water distributor body 1 comprising a flow conduit 4, a first conduit 5, a second conduit 6 and a hollow outer protection tube 21; the overflow pipeline 4, the first pipeline 5 and the second pipeline 6 are all arranged in the outer protection pipe 21; the overflow pipeline 4 is used for water supply flow; the first pipeline 5 is used for splitting part of water flow in the overflow pipeline 4; the second pipeline 6 is used for setting a control valve 7;
an upper joint 2, wherein the head end of the water distributor main body 1 is in sealing connection with the upper joint 2; the upper joint 2 is provided with a water distribution inlet 22 communicated with the overflow pipeline 4;
the tail end of the water distributor main body 1 is connected with the lower joint 3 in a sealing way; the lower joint 3 is provided with a water distribution outlet 23 communicated with the overflow pipeline 4;
wherein:
the control valve 7 comprises a control valve body 8 and an adjusting device 9;
a control valve cavity 801 is formed in the control valve main body 8, and a sealing element 12 is arranged in the control valve cavity 801 in a sliding sealing manner; the control valve cavity 801 is provided with a control valve water inlet 701 and a control valve water outlet 702 which are arranged in a staggered way;
the adjusting device 9 comprises a motor 10 and a screw rod 11, an output shaft of the motor 10 is fixedly connected with the head end of the screw rod 11, and the tail end of the screw rod 11 extends into the control valve cavity 801 to be fixedly connected with the sealing element 12; the motor 10 drives the sealing piece 12 to slide in the control valve cavity 801 through the lead screw 11, so that the opening of the control valve water outlet 702 is adjusted;
the outer protective tube 21 is provided with a water outlet 101;
the bypass pipeline 4 is communicated with the head end of the first pipeline 5 through a bypass channel 15;
the tail end of the first pipeline 5 is communicated with a control valve water inlet 701 through a water outlet channel 16;
the control valve water outlet 702 is communicated with the water outlet 101.
In the present embodiment, a two-layer sealing structure is employed, and the first sealing structure is constituted by a closed space formed by the bypass duct 4 and the outer protection tube 21. The second-layer sealing structure is a seal that is independent in structure and is composed of the first duct 5, the second duct 6, and the like. When the first layer sealing structure fails, the second layer sealing structure completes the sealing function. All parts are considered thickened and a special pressure resistant material is chosen.
Preferably, the sealing member 12 is provided with a fixing groove 121, and the tail end of the screw 11 is inserted into the fixing groove 121 for fixing.
Preferably, the outer circumference of the screw 11 is provided with a left bearing assembly 111 and a right bearing assembly 112 protruding outwards; the left pressure-bearing assembly 111 and the right pressure-bearing assembly 112 are both arranged in the control valve cavity 801 and are both tightly attached to the inner wall of the control valve cavity 801.
The left bearing assembly 111 and the right bearing assembly 112 are spaced apart by a distance, the left bearing assembly 111 is located near the head end of the screw 11, and the left bearing assembly 111 is located far from the head end of the screw 11.
The left pressure-bearing assembly 111, the right pressure-bearing assembly 112 and the inner wall of the control valve cavity 801 are enclosed to form a third pipeline 13, and the control valve water inlet 701 is always communicated with the third pipeline 13; the control valve inlet 701, the third pipe 13 and the control valve outlet 702 together serve as a liquid outlet channel.
Preferably, the left and right pressure bearing assemblies 111 and 112 are the same size.
In this embodiment, the control valve 7 adopts a balance pressure design, the inner side surface of the left pressure-bearing component 111 is used as a left pressure-bearing surface, the inner side surface of the right pressure-bearing component 112 is used as a right pressure-bearing surface, the areas of the left pressure-bearing surface and the right pressure-bearing surface are equal, and the water injection pressure is balanced, so that the load is greatly reduced when the opening of the liquid outlet channel is regulated, the current required by the motor 10 is smaller, and the overall power consumption is small.
Preferably, the first conduit 5 is provided with an orifice plate 14;
the first pipeline 5 is respectively provided with a flow sensor 141 before the orifice plate and a flow sensor 142 after the orifice plate at two sides of the orifice plate 14.
In the present embodiment, the flow sensor 141 collects pressure wave signals before the orifice plate 14, and the flow sensor 142 collects pressure wave signals after the orifice plate 14, and the flow sensor 141 and the flow sensor 142 complete flow measurement. The calculation of the corresponding flow is accomplished by calculating the differential pressure between the flow sensor 141 before the orifice plate and the flow sensor 142 after the orifice plate. The provision of the orifice plate 14 reduces fluctuations due to too fast water inflow and reduces interference.
Preferably, the number of the pore plates 14 is two, and the two pore plates 14 are arranged at intervals; the two orifice plates 14 together form an orifice plate set, and the orifice plate front flow sensor 141 and the orifice plate rear flow sensor 142 are respectively arranged at two sides of the orifice plate set.
Preferably, the right bearing assembly 112 includes three bearing plates 113 disposed at intervals, and the three bearing plates 113 are all closely attached to the inner wall of the control valve cavity 801.
In this embodiment, the right pressure bearing assemblies 112 use three right pressure bearing assemblies 112 to increase the sealing effect and avoid water leakage; and left pressure bearing assembly 111 is mounted adjacent seal 12 without the need for a deliberate increase in sealing effect. Water flow is ensured in the liquid outlet passage by the left and right pressure-bearing assemblies 111 and 112, and leakage is not caused to flow out.
Preferably, the sealing element 12 is sleeved at the tail end of the screw rod 11, and the screw rod 11 can rotate relative to the sealing element 12.
Preferably, the bypass pipeline 4 is communicated with the head end of the first pipeline 5 through a bypass channel 15 at a position close to the head end of the bypass pipeline.
Preferably, the dispenser body 1 further comprises a fourth conduit 17; the fourth pipeline 17 is arranged in the outer protection pipe 21, and an outer pressure sensor 18 is arranged in the fourth pipeline 17; the external pressure sensor 18 is used to measure the tightness inside the outer sheath 21.
In this embodiment, the external pressure sensor 18 is mainly used for completing seal verification measurement, and after the water distributor of the present invention is closed, the external pressure sensor 18 monitors the change of the external pressure of the pipe within a certain period of time to determine whether the tightness of the water distributor main body 1 is good.
Preferably, the water distributor body 1 further comprises a fifth pipe 24, the fifth pipe 24 being arranged inside the outer protection tube 21, the fifth pipe 24 having the AD module 20 and the MCU module 19 arranged therein;
the flow sensor 141 before the orifice plate, the flow sensor 142 after the orifice plate and the external pressure sensor 18 are all in signal connection with the MCU module 19 through the AD module 20;
the MCU module 19 is in signal connection with the motor 10.
The invention also provides a using method of the water distributor of the high-temperature-resistant, high-pressure and large-depth well, which comprises the following steps:
the water flow is introduced into the flow passage pipeline 4, and part of the water flow in the flow passage pipeline 4 enters the first pipeline 5 through the flow dividing channel 15; the water flow in the first pipeline 5 passes through the water outlet channel 16 and enters the control valve cavity 801 from the control valve water inlet 701; the water flow in the control valve cavity 801 passes through the control valve water outlet 702 and flows out of the water outlet 101;
the flow sensor 141 before the orifice plate and the flow sensor 142 after the orifice plate receive flow signals, and the flow signals are converted by the AD module 20 and then sent to the MCU module 19;
the MCU module 19 carries out PID regulation algorithm according to the flow signal and the opening regulation signal to obtain a control signal, and the control signal controls the motor 10 to run through the H-bridge circuit;
according to the control signal, the motor 10 drives the sealing element 12 to slide in the control valve cavity 801 through the lead screw 11, and the control valve cavity 801 is adjusted to cover the control valve water outlet 702, so that the opening of the control valve water outlet 702 is adjusted.
In this embodiment, the flow sensor 141 before the orifice plate, the flow sensor 142 after the orifice plate, the external pressure sensor 18, the AD module 20, and the MCU module 19 together constitute a signal control system.
In this embodiment, the circuit operates in a low power state, waking up using interrupts. The orifice plate rear flow sensor 142 only turns on the switch power supply by the MCU module 19 when measuring the current flow. The external pressure sensor 18 only opens the switch to supply power when the MCU module 19 performs seal verification operation. The MCU module 19 only completes the function of adjusting the flow rate by turning on and off the storage battery 2 to supply power to the motor 10 in the water nozzle through the H-bridge circuit when the flow rate is adjusted. The MCU module 19 is in a sleep state and wakes up when there is a change in the orifice plate front flow sensor 141.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. High temperature resistant, high pressure resistant, be applicable to the water injection mandrel of large depth well, its characterized in that includes:
a water distributor body (1) comprising a flow conduit (4), a first conduit (5), a second conduit (6) and a hollow outer protection tube (21); the overflow pipeline (4), the first pipeline (5) and the second pipeline (6) are all arranged in the outer protection pipe (21); the overflow pipeline (4) is used for supplying water to flow; the first pipeline (5) is used for splitting the water flow in a part of the overflow pipeline (4); the second pipeline (6) is used for setting a control valve (7);
an upper joint (2), wherein the head end of the water distributor main body (1) is in sealing connection with the upper joint (2); the upper joint (2) is provided with a water distribution inlet (22) communicated with the head end of the overflow pipeline (4);
the tail end of the water distributor main body (1) is connected with the lower joint (3) in a sealing way; the lower joint (3) is provided with a water distribution outlet (23) communicated with the tail end of the overflow pipeline (4);
wherein:
the control valve (7) comprises a control valve main body (8) and a regulating device (9);
a control valve cavity (801) is formed in the control valve main body (8), and a sealing piece (12) is arranged in the control valve cavity (801) in a sliding sealing manner; a control valve inlet hole (701) and a control valve outlet hole (702) which are arranged in a staggered way are formed in the control valve cavity (801);
the adjusting device (9) comprises a motor (10) and a screw (11); an output shaft of the motor (10) is fixedly connected with the head end of the lead screw (11), and the tail end of the lead screw (11) extends into the control valve cavity (801) and is fixedly connected with the sealing element (12); the motor (10) drives the sealing piece (12) to slide in the control valve cavity (801) through the lead screw (11), so that the opening of the water outlet hole (702) of the control valve is adjusted;
a water outlet (101) is formed in the outer protective tube (21);
the bypass pipeline (4) is communicated with the head end of the first pipeline (5) through a bypass channel (15);
the tail end of the first pipeline (5) is communicated with a water inlet hole (701) of the control valve through a water outlet channel (16);
the control valve water outlet hole (702) is communicated with the water outlet (101).
2. The high temperature, pressure and water distributor for large depth wells according to claim 1, wherein:
the periphery of the screw rod (11) is provided with a left pressure-bearing component (111) and a right pressure-bearing component (112) which are outwards protruded; the left pressure-bearing assembly (111) and the right pressure-bearing assembly (112) are both positioned in the control valve cavity (801); the peripheries of the left pressure-bearing component (111) and the right pressure-bearing component (112) are clung to the inner wall of the control valve cavity (801);
the left pressure-bearing assembly (111) and the right pressure-bearing assembly (112) are separated by a distance, the left pressure-bearing assembly (111) is located at a position close to the head end of the screw rod (11), and the left pressure-bearing assembly (111) is located at a position far away from the head end of the screw rod (11);
the left pressure-bearing component (111), the right pressure-bearing component (112) and the inner wall of the control valve cavity (801) are enclosed to form a third pipeline (13), and the control valve water inlet (701), the third pipeline (13) and the control valve water outlet (702) are jointly used as a liquid outlet channel.
3. The high temperature, pressure and water distributor suitable for use in large depth wells according to claim 2, wherein:
the left bearing assembly (111) and the right bearing assembly (112) have the same cross-sectional area.
4. The high temperature, pressure and water distributor for large depth wells according to claim 1, wherein:
an orifice plate (14) is arranged in the first pipeline (5);
the first pipeline (5) is respectively provided with a front orifice plate flow sensor (141) and a rear orifice plate flow sensor (142) at two sides of the orifice plate (14); the flow sensor (141) before the orifice plate and the flow sensor (142) after the orifice plate are used for measuring the flow.
5. The high temperature, pressure and water distributor for large depth wells according to claim 4, wherein:
the number of the pore plates (14) is two, and the two pore plates (14) are arranged at intervals; the two orifice plates (14) together form an orifice plate group;
the flow sensor (141) before the orifice plate and the flow sensor (142) after the orifice plate are respectively arranged at two sides of the orifice plate group.
6. A high temperature, pressure and water distributor suitable for use in large depth wells according to claim 3, wherein:
the right pressure-bearing assembly (112) comprises three pressure-bearing plates (113) which are arranged at intervals, and the peripheries of the three pressure-bearing plates (113) are clung to the inner wall of the control valve cavity (801).
7. The high temperature, pressure and water distributor for large depth wells according to claim 1, wherein:
the sealing element (12) is sleeved at the tail end of the screw rod (11), and the screw rod (11) can rotate relative to the sealing element (12).
8. The high temperature, pressure and water distributor for large depth wells according to claim 1, wherein:
the water distributor body (1) further comprises a fourth pipe (17); the fourth pipeline (17) is arranged in the outer protective pipe (21), and an outer pressure sensor (18) is arranged in the fourth pipeline (17); the external pressure sensor (18) is used for measuring the tightness in the external protection tube (21).
9. The high temperature, pressure and water distributor for large depth wells according to claim 8, wherein:
the water distributor main body (1) further comprises a fifth pipeline (24), the fifth pipeline (24) is arranged in the outer protection pipe (21), and an AD module (20) and an MCU module (19) are arranged in the fifth pipeline (24);
the flow sensor (141) before the pore plate, the flow sensor (142) after the pore plate and the external pressure sensor (18) are connected with the MCU module (19) through the AD module (20) in a signal manner; the MCU module (19) is in signal connection with the motor (10).
10. A method of using the high temperature, high pressure resistant water distributor for large depth wells according to any one of claims 1 to 9, comprising the steps of:
the water flow is introduced into the flow passage pipeline (4), and part of the water flow in the flow passage pipeline (4) enters the first pipeline (5) through the flow dividing channel (15); the water flow in the first pipeline (5) passes through the water outlet channel (16) and enters the control valve cavity (801) from the control valve water inlet hole (701); the water in the control valve cavity (801) flows out from the water outlet (101) through the control valve water outlet hole (702);
the motor (10) drives the sealing piece (12) to slide in the control valve cavity (801) through the lead screw (11), and the control valve cavity (801) is adjusted to cover the control valve water outlet hole (702), so that the opening of the control valve water outlet hole (702) is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854464.3A CN117072122B (en) | 2022-07-15 | 2022-07-15 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854464.3A CN117072122B (en) | 2022-07-15 | 2022-07-15 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117072122A true CN117072122A (en) | 2023-11-17 |
| CN117072122B CN117072122B (en) | 2024-02-06 |
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Family Applications (1)
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|---|---|---|---|
| CN202210854464.3A Active CN117072122B (en) | 2022-07-15 | 2022-07-15 | High-temperature-resistant high-pressure-resistant water distributor suitable for large-depth well and use method thereof |
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| CN114737935A (en) * | 2022-04-19 | 2022-07-12 | 西京学院 | Intelligent water distributor, intelligent water distribution system and automatic flow measuring and adjusting method thereof |
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| NO931128D0 (en) * | 1993-03-26 | 1993-03-26 | Norske Stats Oljeselskap | DEVICE FOR SUPPLY OF FLUID IN A BURNING FORM |
| WO2014117463A1 (en) * | 2013-01-31 | 2014-08-07 | 中国石油天然气股份有限公司 | Bridge-type concentric continuously adjustable water distributor |
| CN106351627A (en) * | 2016-10-09 | 2017-01-25 | 中国石油化工股份有限公司 | Subdivision measurement adjustment water distributor |
| CN207348825U (en) * | 2017-10-17 | 2018-05-11 | 中国石油化工股份有限公司 | A kind of oil field multitube seperated layer water injection safety valve |
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| CN110206517A (en) * | 2019-06-26 | 2019-09-06 | 山东大东联石油设备有限公司 | A kind of injection well downhole flow regulator |
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| CN114737935A (en) * | 2022-04-19 | 2022-07-12 | 西京学院 | Intelligent water distributor, intelligent water distribution system and automatic flow measuring and adjusting method thereof |
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| CN117072122B (en) | 2024-02-06 |
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