Measurement and distribution water distribution system for water injection well

Abstract

The utility model discloses a measuring and adjusting water system for a water injection well, which comprises an underground concentric measuring and adjusting device, one end of the underground concentric measuring and adjusting device is provided with a concentric adjustable water adjusting device in a matched manner, and the other end of the underground concentric measuring and adjusting device is in communication connection with a control module. The underground concentric measuring and adjusting device comprises an ultrasonic flowmeter, a circuit control unit, a motor driving unit, a positioning anti-rotation unit and an adjusting head which are sequentially connected in the axial direction, and the positioning anti-rotation unit is rotationally connected with the adjusting head. According to the measuring and adjusting water system for the water injection well, the water nozzle adjusting continuity is high, small-water-volume fine adjusting and injection can be achieved, and more well conditions with different water injection precision can be met; a detection system is advanced, parameters such as water injection flow, pressure and temperature are monitored in real time, the opening degree of a water nozzle is adjusted in real time according to the parameters, and water injection accuracy is guaranteed; the utility model can better adapt to complex working conditions of deep wells and highly-deviated wells.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measuring and adjusting water distribution, and relates to a measuring and adjusting water distribution system for injection wells. BACKGROUND

[0002] The pressure of the underground oil layer gradually decreases due to long-term exploitation, resulting in a gradual decrease in oil output. In order to maintain the pressure difference of the oil layer, water distribution is continuously supplemented to maintain a certain oil production. Due to the complex downhole working conditions, the traditional eccentric water distributor has poor adaptability to deep wells and high-inclination wells, and has poor adjustment accuracy when the water volume is small. When the water quality in the oil well is poor and scaling is more, the water nozzle is easily blocked, and the monitoring method is relatively simple, making it difficult to achieve real-time and accurate monitoring and adjustment. Based on this, the original eccentric water distributor is replaced by a concentric adjustable water distribution process in the application process. The concentric adjustable water distribution process has the characteristics of simple and convenient operation, is suitable for well conditions such as high-inclination wells, has higher injection adjustment accuracy for small water volume, has strong anti-contamination and scaling capacity, is simple and convenient to operate, has high efficiency, has simple structure, and is safe and reliable. However, the existing concentric adjustable water distribution device still has the problems of high concentric docking failure rate and low injection adjustment accuracy when applied to the scene of small water volume adjustment.

[0003] In summary, the prior art has the problem of low control accuracy for small water volume. INVENTION CONTENTS

[0004] The utility model aims at providing a measuring and adjusting water distribution system for injection wells, solving the problem of low control accuracy for small water volume in the prior art.

[0005] The utility model also provides a measuring and adjusting water distribution method for injection wells.

[0006] The utility model adopts the technical scheme that the measuring and adjusting water distribution system for injection wells comprises a downhole concentric measuring and adjusting device, a concentric adjustable water distribution device is arranged at one end of the downhole concentric measuring and adjusting device, and a control module is communicatively connected to the other end.

[0007] The downhole concentric measuring and adjusting device comprises, in sequence along an axial direction, an ultrasonic flowmeter, a circuit control unit, a motor driving unit, a positioning anti-rotation unit, and an adjustment head, and the positioning anti-rotation unit is rotationally connected to the adjustment head.

[0008] A support arm is arranged on an outer wall of the positioning anti-rotation unit near one end of the motor driving unit, and an anti-rotation block is arranged on an outer wall of the positioning anti-rotation unit near one end of the adjustment head. A telescopic block is movably arranged on an outer wall of the adjustment head.

[0009] The utility model has the characteristics that:

[0010] The concentric adjustable water distribution device includes an outer casing. An upper connector and a lower connector are embedded in the two ends of the outer casing, respectively. A water distributor body is provided in the outer casing near the lower connector. The outer wall of the water distributor body is tightly fitted with the inner wall of the outer casing. One end of the water distributor body is fixed to the outer casing by a fastening screw, and the other end is connected to a positioning cylinder by a fixing screw.

[0011] A movable water nozzle assembly is installed inside the outer casing. The two ends of the movable water nozzle assembly are located inside the positioning cylinder and the water distributor body, respectively. The movable water nozzle assembly includes a water nozzle adjusting sleeve. The two ends of the outer wall of the water nozzle adjusting sleeve are respectively attached to the inner wall of the positioning cylinder and the inner wall of the water distributor body. A movable water nozzle is sleeved on the outer wall of the water nozzle adjusting sleeve near the lower connector. A retaining ring is provided at the end of the water nozzle adjusting sleeve near the lower connector. The retaining ring is configured to cooperate with the movable water nozzle.

[0012] The main body of the water distributor is equipped with a fixed water nozzle assembly, which includes a water nozzle fixing seat. The end of the water nozzle fixing seat near the lower connector is fixedly connected to the main body of the water distributor by an anti-rotation screw, and the outer wall of the end of the water nozzle fixing seat away from the lower connector is fixedly connected to the main body of the water distributor by a fixing screw.

[0013] One end of the water nozzle adjusting sleeve is embedded in the water nozzle fixing seat, and the water nozzle fixing seat is embedded in the water nozzle adjusting sleeve. One end of the water nozzle fixing sleeve is set with a fixed water nozzle, and the fixed water nozzle and the movable water nozzle are fitted together.

[0014] A sealing ring is provided between the outer wall of the movable faucet and the inner wall of the faucet mounting base.

[0015] An anti-rotation groove is provided on the end of the positioning cylinder near the upper connector, and the anti-rotation groove is movably connected to the support arm.

[0016] The inner wall of the water tap adjustment sleeve has an adjustment groove, which is movably connected to the telescopic block.

[0017] The advantages of this invention are: the water nozzle adjustment has high continuity, enabling fine-tuning of small water volumes and meeting the needs of wells with varying water injection precision; the detection system is relatively advanced, monitoring parameters such as water flow, pressure, and temperature in real time, and adjusting the water nozzle opening based on these parameters to ensure the accuracy of water injection; this invention can better adapt to the complex working conditions of deep wells and highly deviated wells. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the downhole concentric measurement and adjustment device in this utility model;

[0019] Figure 2 This is a schematic diagram of the concentric adjustable water distribution device in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the underground concentric measurement and adjustment device and the concentric adjustable water distribution device combined in this utility model.

[0021] In the diagram, 1 is the downhole concentric measurement and adjustment device; 101 is the ultrasonic flow meter; 102 is the circuit control unit; 103 is the motor drive unit; 104 is the positioning and anti-rotation unit; 1041 is the support arm; 1042 is the anti-rotation block; 105 is the adjusting head; and 1051 is the telescopic block.

[0022] 2. Concentric Adjustable Water Distribution Device; 201. Upper Connector; 202. Outer Protective Sleeve; 203. Positioning Sleeve; 2031. Anti-rotation Groove; 204. Movable Water Nozzle Assembly; 2041. Water Nozzle Adjustment Sleeve; 2042. Movable Water Nozzle; 2043. Retaining Ring; 2044. Adjustment Groove; 205. Fixing Screw; 206. Water Distributor Body; 207. Fixed Water Nozzle Assembly; 2071. Sealing Ring; 2072. Fixed Water Nozzle; 2073. Water Nozzle Fixing Base; 2074. Anti-rotation Screw; 208. Fastening Threaded Ring; 209. Lower Connector; Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] The water distribution system for water injection wells includes a water distribution system for water injection wells, including a concentric measurement and adjustment device 1 in the well, a concentric adjustable water distribution device 2 at one end of the concentric measurement and adjustment device 1, and a control module connected to the other end of the concentric measurement and adjustment device 1.

[0025] like Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0026] like Figure 2As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042. A water tap fixing assembly 207 is provided inside the main body 206 of the water distributor. The fixing assembly 207 includes a water tap fixing seat 2073. The end of the water tap fixing seat 2073 near the lower connector 209 is fixedly connected to the main body 206 of the water distributor by an anti-rotation screw 2074. The outer wall of the end of the water tap fixing seat 2073 away from the lower connector 209 is fixedly connected to the main body 206 of the water distributor by a fixing screw 205. One end of the water tap adjusting sleeve 2041 is embedded in the water tap fixing seat 2073. The water tap fixing seat 2073 contains a water tap adjusting sleeve 2041, and a fixed water tap 2072 is provided at the other end. The fixed water tap 2072 is fitted to the movable water tap 2042. A sealing ring 2071 is provided between the outer wall of the movable water tap 2042 and the inner wall of the water tap fixing seat 2073.

[0027] like Figure 2 As shown, the positioning cylinder 203 has an anti-rotation groove 2031 on one end near the upper connector 201, and the anti-rotation groove 2031 is movably connected to the support arm 1041. The water nozzle adjusting sleeve 2041 has an adjusting groove 2044 on its inner wall, and the adjusting groove 2044 is movably connected to the telescopic block 1051.

[0028] The method for measuring, adjusting, and distributing water in injection wells specifically includes the following steps:

[0029] The concentric measuring and adjusting device 1 is slowly and uniformly lowered into the well via a cable. When the concentric measuring and adjusting device 1 is lowered to a distance of three to five meters from the concentric adjustable water distribution device 2, the circuit control unit 102 controls the support arm 1041 to open. The concentric measuring and adjusting device 1 continues to be lowered until the end face of the support arm 1041 contacts the positioning cylinder 203. At this time, the lowering of the concentric measuring and adjusting device 1 is completed.

[0030] After the concentric measurement and adjustment device 1 reaches the target layer, it starts the flow test function of the ultrasonic flow meter 101 to obtain the initial flow data of the layer. According to the pre-designed injection scheme, the motor drive unit 103 sends a command, the adjustment head 105 rotates, and the movable water nozzle assembly 204 is driven to rotate through the telescopic block 1051. The water injection volume is adjusted by adjusting the size of the water nozzle through the axial movement of the movable water nozzle assembly 204 until the required injection volume is reached.

[0031] During the flow regulation process, the circuit control unit 102 monitors data such as pressure, temperature, and flow rate in real time and transmits this data to ground equipment for recording. The data is analyzed and judged to ensure that the water injection status is stable and meets requirements. After the test and regulation are completed, the testing and regulation instrument is slowly lifted out.

[0032] During concentric water injection testing and adjustment, the downhole concentric testing and adjustment device 1 is lowered into the tubing using a cable. When it reaches a point three to five meters above the concentric adjustable water distribution device, the control module initiates an arm-opening operation on the downhole concentric testing and adjustment device 1, opening the support arm 1041 on the positioning and anti-rotation unit 104. Then, the downhole concentric testing and adjustment device 1 continues to be lowered. The support arm 1041 on the positioning and anti-rotation unit 104 axially aligns with the positioning cylinder 203 in the concentric adjustable water distribution device. The telescopic block 10 on the adjusting head 105... 51 connects with the adjustment groove 2044 on the water nozzle adjustment sleeve 2041. The adjustment head 105 continues to rotate, driving the anti-rotation block 1042 on the positioning anti-rotation unit 104 into the anti-rotation groove 2031 of the positioning cylinder 203. The downhole concentric measurement and adjustment device 1 continues to rotate, driving the water nozzle adjustment sleeve 2041 and the movable water nozzle 2042 to make a spiral motion, changing the relative position of the outlet of the movable water nozzle 2042 and the fixed water nozzle 2072, thereby changing the size of the outlet throttling area and realizing the adjustment of the water injection volume.

[0033] The fixed water nozzle assembly 207 is concentrically assembled inside the water distributor body 206 and has a sealing ring for sealing. The fastening screw ring 208 prevents the fixed water nozzle assembly 207 from moving axially. The positioning cylinder 203 is concentrically assembled outside the water distributor body 206. The fixing screw 205 connects the fixed water nozzle assembly 207 to the water distributor body 206 on the side to prevent mutual movement. The movable water nozzle assembly 204 is concentrically assembled inside the positioning cylinder 203 and the fixed water nozzle assembly 207. The movable water nozzle assembly 204 opens or closes the fixed water nozzle assembly 207 by axial movement, thereby enabling precise control of the water injection volume. The upper connector 201, outer casing 202, water distributor body 206, and lower connector 209 are threaded and sealed together, ensuring the overall strength of the instrument while also having a certain pressure bearing capacity. The upper connector 201 and lower connector 209 adopt the oilfield-standard tubing thread design, which facilitates connection with tubing or other oilfield downhole tools.

[0034] The circuit control unit 102 provides a control unit for the entire concentric measurement and adjustment device. The positioning and anti-rotation unit 104 is simply and reliably positioned and connected to the water distributor. The ultrasonic flow meter 101 uses its own onboard sensors to accurately measure key parameters such as the flow rate and pressure of the injected water. Then, based on these measurement data, the motor drive unit 103 sends a rotation command to the regulating head 105, thereby adjusting the opening of the water nozzle of the water distributor to achieve precise stratified water distribution.

[0035] The concentric adjustable water distribution device of this utility model adopts an integrated design of the water distributor body 206 and the water nozzle. It uses an underground concentric measuring and adjusting device to connect with the water distributor. The control module sends forward and reverse commands to the underground concentric measuring and adjusting device, which drives the adjusting sleeve to rotate forward and reverse, adjusts the relative position of the movable water nozzle and the fixed water nozzle in the water distributor, changes the opening size of the water nozzle, that is, the effective water injection flow area, and realizes the adjustment of the water injection size. The water nozzle can be completely closed without leakage.

[0036] The water distribution and adjustment system for injection wells has the following characteristics: It adopts an integrated design of the water distributor body and the adjusting nozzle, eliminating the need for wireline retrieval; it uses a concentric resistance-detection docking method, resulting in a high docking success rate; it is applicable to most wells, including vertical wells, inclined wells, and those with scaling, offering a wide range of applications; it uses an axial motion displacement adjusting nozzle method, ensuring high nozzle opening accuracy; it has a large flow channel, allowing operation in one layer to not affect water injection operations in other layers, providing strong inter-layer anti-interference capabilities; its compact overall structure is suitable for small-pitch layered water injection processes; it uses special materials and surface treatment technology, providing strong resistance to fouling and scaling, enabling long-term and stable water injection operations; the concentric adjustable water distributor docking is all concentric, resulting in a high docking success rate, reducing repetitive operations due to docking failures, and improving work efficiency; the adjusting components of the concentric adjustable water distributor are rationally designed and flexible, preventing jamming during adjustment and ensuring the continuity and stability of water injection operations.

[0037] Example 1

[0038] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0039] Example 2

[0040] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0041] like Figure 2 As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205.

[0042] Example 3

[0043] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0044] like Figure 2 As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042.

[0045] Example 4

[0046] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0047] like Figure 2As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042. A water tap fixing assembly 207 is provided inside the water distributor body 206. The water tap fixing assembly 207 includes a water tap fixing seat 2073. The end of the water tap fixing seat 2073 near the lower connector 209 is fixedly connected to the water distributor body 206 by an anti-rotation screw 2074. The outer wall of the end of the water tap fixing seat 2073 away from the lower connector 209 is fixedly connected to the water distributor body 206 by a fixing screw 205. One end of the water tap adjusting sleeve 2041 is embedded in the water tap fixing seat 2073. The water tap fixing seat 2073 has a fixed water tap 2072 at one end, and the fixed water tap 2072 is fitted to the movable water tap 2042.

[0048] Example 5

[0049] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0050] like Figure 2As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042. A water tap fixing assembly 207 is provided inside the main body 206 of the water distributor. The fixing assembly 207 includes a water tap fixing seat 2073. The end of the water tap fixing seat 2073 near the lower connector 209 is fixedly connected to the main body 206 of the water distributor by an anti-rotation screw 2074. The outer wall of the end of the water tap fixing seat 2073 away from the lower connector 209 is fixedly connected to the main body 206 of the water distributor by a fixing screw 205. One end of the water tap adjusting sleeve 2041 is embedded in the water tap fixing seat 2073. The water tap fixing seat 2073 contains a water tap adjusting sleeve 2041, and a fixed water tap 2072 is provided at the other end. The fixed water tap 2072 is fitted to the movable water tap 2042. A sealing ring 2071 is provided between the outer wall of the movable water tap 2042 and the inner wall of the water tap fixing seat 2073.

[0051] Example 6

[0052] This embodiment proposes a water measurement, adjustment and distribution system for water injection wells, including a water measurement, adjustment and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1, a concentric adjustable water distribution device 2 is provided at one end of the downhole concentric measurement and adjustment device 1, and a control module is communicatively connected at the other end;

[0053] like Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0054] likeFigure 2 As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042. A water tap fixing assembly 207 is provided inside the water distributor body 206. The water tap fixing assembly 207 includes a water tap fixing seat 2073. The end of the water tap fixing seat 2073 near the lower connector 209 is fixedly connected to the water distributor body 206 by an anti-rotation screw 2074. The outer wall of the end of the water tap fixing seat 2073 away from the lower connector 209 is fixedly connected to the water distributor body 206 by a fixing screw 205. One end of the water tap adjusting sleeve 2041 is embedded in the water tap fixing seat 2073. The water tap fixing seat 2073 contains a water tap adjusting sleeve 2041, and a fixed water tap 2072 is provided at the other end of the water tap fixing sleeve 2041. The fixed water tap 2072 is fitted against the movable water tap 2042. Figure 3 As shown, the positioning cylinder 203 has an anti-rotation groove 2031 on one end near the upper connector 201, and the anti-rotation groove 2031 is movably connected to the support arm 1041.

[0055] Example 7

[0056] This embodiment proposes a water measurement, adjustment, and distribution system for water injection wells, including a downhole concentric measurement and adjustment device 1. One end of the downhole concentric measurement and adjustment device 1 is fitted with a concentric adjustable water distribution device 2, and the other end is communicatively connected to a control module. Figure 1 As shown, the downhole concentric measurement and adjustment device 1 includes an ultrasonic flow meter 101, a circuit control unit 102, a motor drive unit 103, a positioning and anti-rotation unit 104, and an adjustment head 105 connected sequentially along the axial direction. The positioning and anti-rotation unit 104 is rotatably connected to the adjustment head 105. A support arm 1041 is provided on the outer wall of the positioning and anti-rotation unit 104 near the motor drive unit 103, and an anti-rotation block 1042 is provided on the outer wall of the positioning and anti-rotation unit 104 near the adjustment head 105. A telescopic block 1051 is movably provided on the outer wall of the adjustment head 105.

[0057] like Figure 2 As shown, the concentric adjustable water distribution device 2 includes an outer casing 202. An upper connector 201 and a lower connector 209 are respectively embedded in the two ends of the outer casing 202. A water distributor body 206 is provided in the outer casing 202 near the lower connector 209. The outer wall of the water distributor body 206 is tightly fitted with the inner wall of the outer casing 202. One end of the water distributor body 206 is fixed to the outer casing 202 by a fastening screw ring 208, and the other end is connected to a positioning cylinder 203 by a fixing screw 205. A movable water nozzle assembly 204 is provided inside the outer casing 202. The two ends of the movable water nozzle assembly 204 are located inside the positioning cylinder 203 and the water distributor body 206, respectively. The movable water nozzle assembly 204 includes a water nozzle adjusting sleeve 2041. The two ends of the outer wall of the water nozzle adjusting sleeve 2041 are respectively attached to the inner wall of the positioning cylinder 203 and the inner wall of the water distributor body 206. A movable water nozzle 2042 is sleeved on the outer wall of the water nozzle adjusting sleeve 2041 near the lower connector 209. A retaining ring 2043 is provided at the end of the water nozzle adjusting sleeve 2041 near the lower connector 209. The retaining ring 2043 is configured to cooperate with the movable water nozzle 2042.

[0058] A water tap fixing assembly 207 is provided inside the water distributor body 206. The water tap fixing assembly 207 includes a water tap fixing seat 2073. The end of the water tap fixing seat 2073 near the lower connector 209 is fixedly connected to the water distributor body 206 by an anti-rotation screw 2074. The outer wall of the end of the water tap fixing seat 2073 away from the lower connector 209 is fixedly connected to the water distributor body 206 by a fixing screw 205. One end of the water tap adjusting sleeve 2041 is embedded in the water tap fixing seat 2073. The water tap fixing seat 2073 contains a water tap adjusting sleeve 2041, and a fixed water tap 2072 is provided at the other end of the water tap fixing sleeve 2041. The fixed water tap 2072 is fitted against the movable water tap 2042. Figure 3 As shown, an adjustment groove 2044 is opened on the inner wall of the water nozzle adjustment sleeve 2041, and the adjustment groove 2044 is movably set with the telescopic block 1051.

Claims

1. A water measurement, regulation, and distribution system for water injection wells, characterized in that, The system includes a water distribution and adjustment system for water injection wells, including a concentric measurement and adjustment device (1) in the well. One end of the concentric measurement and adjustment device (1) is equipped with a concentric adjustable water distribution device (2), and the other end is connected to a control module. The downhole concentric measurement and adjustment device (1) includes an ultrasonic flow meter (101), a circuit control unit (102), a motor drive unit (103), a positioning and anti-rotation unit (104), and an adjustment head (105) connected in sequence along the axial direction. The positioning and anti-rotation unit (104) is rotatably connected to the adjustment head (105). A support arm (1041) is provided on the outer wall of the positioning anti-rotation unit (104) near the motor drive unit (103), and an anti-rotation block (1042) is provided on the outer wall of the positioning anti-rotation unit (104) near the adjustment head (105); a telescopic block (1051) is movably provided on the outer wall of the adjustment head (105).

2. The water measurement, regulation, and distribution system for injection wells according to claim 1, characterized in that, The concentric adjustable water distribution device (2) includes an outer casing (202). The two ends of the outer casing (202) are respectively embedded with an upper connector (201) and a lower connector (209). A water distributor body (206) is provided inside the outer casing (202) near the lower connector (209). The outer wall of the water distributor body (206) is tightly fitted with the inner wall of the outer casing (202). One end of the water distributor body (206) is fixed to the outer casing (202) by a fastening screw ring (208), and the other end is connected to a positioning cylinder (203) by a fixing screw (205).

3. The water measurement, regulation, and distribution system for injection wells according to claim 2, characterized in that, The outer casing (202) is provided with a movable water nozzle assembly (204). The two ends of the movable water nozzle assembly (204) are located inside the positioning cylinder (203) and the water distributor body (206), respectively. The movable water nozzle assembly (204) includes a water nozzle adjusting sleeve (2041). The two ends of the outer wall of the water nozzle adjusting sleeve (2041) are respectively attached to the inner wall of the positioning cylinder (203) and the inner wall of the water distributor body (206). A movable water nozzle (2042) is sleeved on one end of the outer wall of the water nozzle adjusting sleeve (2041) near the lower connector (209). A retaining ring (2043) is provided at one end of the water nozzle adjusting sleeve (2041) near the lower connector (209). The retaining ring (2043) is configured to cooperate with the movable water nozzle (2042).

4. The water measurement, regulation, and distribution system for injection wells according to claim 3, characterized in that, The water distributor body (206) is provided with a fixed water tap assembly (207). The fixed water tap assembly (207) includes a water tap fixing seat (2073). The end of the water tap fixing seat (2073) near the lower connector (209) is fixedly connected to the water distributor body (206) by an anti-rotation screw (2074). The outer wall of the end of the water tap fixing seat (2073) away from the lower connector (209) is fixedly connected to the water distributor body (206) by a fixing screw (205).

5. The water measurement, regulation, and distribution system for injection wells according to claim 4, characterized in that, One end of the water tap adjusting sleeve (2041) is embedded in the water tap fixing seat (2073), and the water tap fixing seat (2073) is embedded in the water tap adjusting sleeve (2041) with a fixed water tap (2072) at one end. The fixed water tap (2072) is fitted to the movable water tap (2042).

6. The water measurement, regulation, and distribution system for injection wells according to claim 5, characterized in that, A sealing ring (2071) is provided between the outer wall of the movable water nozzle (2042) and the inner wall of the water nozzle fixing seat (2073).

7. The water measurement, regulation, and distribution system for injection wells according to claim 5, characterized in that, The positioning cylinder (203) has an anti-rotation groove (2031) on one end near the upper connector (201), and the anti-rotation groove (2031) is movably connected to the support arm (1041).

8. The water measurement, regulation, and distribution system for injection wells according to claim 5, characterized in that, The water nozzle adjusting sleeve (2041) has an adjusting groove (2044) on its inner wall, and the adjusting groove (2044) is movably connected with the telescopic block (1051).

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