Dual-control underground cable intelligent water distributor

Abstract

The invention provides a dual-control underground cable intelligent water distributor which comprises an upper connector, an upper shell, a connecting body, a lower shell and a lower connector which are connected in sequence, a central pipe is nested in the upper shell, the two ends of the central pipe are in sealed connection with the upper connector and the connecting body respectively, and an adjusting sleeve is nested in the lower shell. The two ends of the adjusting sleeve are sealed with the connecting body and the lower connector respectively, and the adjusting mechanism, the electric control mechanism and the driving mechanism are arranged in a gap between the upper shell and the center pipe respectively. The dual-control underground cabled intelligent water distributor has the beneficial effects that the dual-control underground cabled intelligent water distributor has two measurement and control processes which do not influence each other, the service life of a pipe column can be effectively prolonged, the dual-control underground cabled intelligent water distributor is suitable for an existing cabled intelligent process pipe column, the cable throwing and fishing measurement and control capability is increased on the basis of an existing cabled intelligent working barrel, and the service life of the cable is prolonged. Therefore, the purposes of two control modes of cabling and measuring and adjusting are achieved, and the requirements of multi-layer-section layered water injection, accurate injection allocation and real-time measuring and adjusting are met.

Description

Technical Field

[0001] The present invention relates to the technical field of downhole water injection tools in the petroleum industry, and more particularly to a dual-controlled downhole cable intelligent water distributor. Background Art

[0002] In recent years, intelligent electronically controlled water injection technology has been applied in major domestic oil fields, with a trend toward widespread adoption. Cable-based measurement and adjustment and simultaneous measurement and adjustment are two distinct operating methods in oilfield stratified water injection.

[0003] The "Measure and Adjust" technique typically requires slickline or cable operations for stratified water injection. This process involves lowering the measurement and adjustment tool to the desired layer and measuring and adjusting parameters such as flow rate, temperature, and pressure. This method can be time-consuming and, due to limitations in well inclination, can be challenging in highly deviated or horizontal wells.

[0004] The wireline test and adjustment process uses surface instruments to monitor the flow and pressure curve and adjust the water injection valve nozzle opening in real time until the preset injection flow rate is achieved. However, there is also the risk that if the wireline test and adjustment nozzle becomes clogged, the surface instrument control will fail, resulting in the need for later workover operations and shortening the operating life of the oil well.

[0005] Therefore, a water distributor that can solve the problems referred to above is badly needed now. Summary of the Invention

[0006] The present invention overcomes the deficiencies in the prior art and provides a dual-controlled underground cable intelligent water distributor.

[0007] The purpose of the present invention is achieved through the following technical solutions.

[0008] A dual-control underground cable intelligent water distributor comprises: a water nozzle adjustment device and an adjustment pipe are provided in the outer tube of the water distributor, the adjustment pipe is rotatably connected to the outer tube of the water distributor, the two ends of the adjustment pipe are respectively connected to the upper joint and the lower joint of the outer tube of the water distributor, a first connecting hole group and a second connecting hole group are respectively provided on the adjustment pipe, the first connecting hole group is connected to the water nozzle adjustment channel provided on the outer tube of the water distributor, the water nozzle adjustment channel is provided in conjunction with the water nozzle adjustment device, the second connecting hole group matches the mechanical adjustment channel provided on the outer tube of the water distributor, the mechanical adjustment channel is provided with a plurality of corresponding holes, and the corresponding holes are correspondingly connected to the second connecting hole group through the rotation of the adjustment pipe.

[0009] The outer pipe of the water distributor is composed of an upper joint, an upper shell, a connecting body, a lower shell and a lower joint which are connected in sequence.

[0010] A water nozzle adjustment channel is provided on the connecting body, and a mechanical adjustment channel is provided on the lower joint.

[0011] A bridge channel is provided on the outer pipe of the water distributor, and the bridge channel is respectively connected with the first communication hole group and the second communication hole group.

[0012] A damping device is provided inside the outer pipe of the water distributor, and the damping device is arranged in conjunction with the regulating pipe.

[0013] A pressure gauge is installed inside the outer pipe of the water distributor.

[0014] The adjusting tube includes a central tube and an adjusting sleeve, which are fixedly connected. The central tube is connected to the upper joint and is provided with a first connecting hole group. The adjusting sleeve is connected to the lower joint and is provided with a second connecting hole group.

[0015] The faucet regulating device includes a regulating mechanism, a driving mechanism and an electric control mechanism.

[0016] The regulating mechanism includes a regulating mechanism pressure cap, a regulating mechanism protective tube, a flow regulating device, a faucet and a faucet sealing plug. The regulating mechanism pressure cap is fixedly connected to the regulating mechanism protective tube. The regulating mechanism protective tube is provided with a flow regulating device, a faucet and a faucet sealing plug. The flow regulating device is arranged in conjunction with the faucet. The faucet is matched with a faucet sealing plug. The driving mechanism is arranged in conjunction with the flow regulating device, and the electronic control mechanism is connected to the driving mechanism circuit.

[0017] The electric control mechanism includes a circuit protection tube pressure cap, a short section and an ultrasonic probe. The circuit protection tube pressure cap is arranged at the end of the short section, and the ultrasonic probe is connected to the short section circuit.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a dual-control downhole cable intelligent water distributor with two measurement and control processes. The two measurement and control processes do not affect each other, which can effectively extend the life of the pipe string. It is suitable for existing cable intelligent process pipe strings. On the basis of the existing cable intelligent working barrel, the cable casting and fishing measurement and control capabilities are added, thereby achieving the purpose of two control forms: cable and measurement-while-adjustment, meeting the needs of multi-layer water injection, precise injection and real-time measurement and adjustment.

[0020] This solution integrates two measurement and control methods: cable-controlled direct reading and measurement-while-adjustment. Surface equipment can send measurement and control instructions to downhole tools via steel pipe cables. At the same time, electric measuring and adjusting instruments can also be lowered through cable operations to monitor downhole parameters and adjust the amount of water injected into the formation, thereby improving the process efficiency of water injection and promoting the efficient development of oil fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0022] Figure 2 is a schematic diagram of the BB section;

[0023] Figure 3is a schematic diagram of the CC section;

[0024] Figure 4 is a schematic diagram of the DD section;

[0025] Figure 5 is a schematic diagram of the EE cross section;

[0026] In the picture:

[0027] 1. Water distributor outer tube; 101. Upper joint; 102. Upper housing; 103. Connecting body; 104. Lower housing; 105. Lower joint; 106. Faucet adjustment channel; 107. Mechanical adjustment channel; 108. Bridge channel;

[0028] 2. Adjustment tube; 201. Center tube; 202. Adjustment sleeve; 203. First communication hole group; 204. Second communication hole group;

[0029] 3. Adjustment mechanism; 301. Adjustment mechanism pressure cap; 302. Adjustment mechanism protective tube; 303. Flow control device; 304. Water nozzle; 305. Water nozzle sealing plug;

[0030] 4. Driving mechanism;

[0031] 5. Electric control mechanism; 501. Circuit protection tube pressure cap; 502. Pup joint; 503. Ultrasonic probe;

[0032] 6. Damping device; 7. Pressure gauge; 8. Pressure plate assembly; 9. Cable connector. DETAILED DESCRIPTION

[0033] Example

[0034] A dual-control underground cable intelligent water distributor comprises: a water nozzle adjustment device and an adjustment tube 2 are provided in the water distributor outer tube 1, the adjustment tube 2 is rotatably connected to the water distributor outer tube 1, and the two ends of the adjustment tube 2 are respectively connected to the upper joint 101 and the lower joint 105 of the water distributor outer tube 1, and a first connecting hole group 203 and a second connecting hole group 204 are respectively provided on the adjustment tube 2, the first connecting hole group 203 is connected to the water nozzle adjustment channel 106 provided on the water distributor outer tube 1, and the water nozzle adjustment channel 106 is provided in conjunction with the water nozzle adjustment device, and the second connecting hole group 204 matches the mechanical adjustment channel 107 provided on the water distributor outer tube 1, and the mechanical adjustment channel 107 is provided with a plurality of corresponding holes, and the corresponding holes are correspondingly connected to the second connecting hole group 204 through the rotation of the adjustment tube 2.

[0035] The outer pipe 1 of the water distributor is composed of an upper joint 101, an upper shell 102, a connecting body 103, a lower shell 104 and a lower joint 105 connected in sequence.

[0036] The connecting body 103 is provided with a faucet adjustment channel 106 , and the lower joint 105 is provided with a mechanical adjustment channel 107 .

[0037] A bridge channel 108 is provided on the outer pipe 1 of the water distributor. The bridge channel 108 is connected to the first communication hole group 203 and the second communication hole group 204 respectively.

[0038] A damping device 6 is provided in the outer pipe 1 of the water distributor, and the damping device 6 is arranged in cooperation with the regulating pipe 2 .

[0039] A pressure gauge 7 is provided inside the outer pipe 1 of the water distributor.

[0040] The adjusting tube 2 includes a central tube 201 and an adjusting sleeve 202. The central tube 201 and the adjusting sleeve 202 are fixedly connected. The central tube 201 is connected to the upper joint 101. A first connecting hole group 203 is provided on the central tube 201. The adjusting sleeve 202 is connected to the lower joint 105. A second connecting hole group 204 is provided on the adjusting sleeve 202.

[0041] The faucet regulating device includes a regulating mechanism 3, a driving mechanism 4 and an electric control mechanism 5.

[0042] The regulating mechanism 3 includes a regulating mechanism pressure cap 301, a regulating mechanism protective tube 302, a flow regulating device 303, a water nozzle 304 and a water nozzle sealing plug 305. The regulating mechanism pressure cap 301 is fixedly connected to the regulating mechanism protective tube 302. The regulating mechanism protective tube 302 is provided with a flow regulating device 303, a water nozzle 304 and a water nozzle sealing plug 305. The flow regulating device 303 is matched with the water nozzle 304, and the water nozzle 304 is matched with a water nozzle sealing plug 305. The driving mechanism 4 is matched with the flow regulating device 303, and the electronic control mechanism 5 is circuit-connected to the driving mechanism 4.

[0043] The electric control mechanism 5 includes a circuit protection tube pressure cap 501, a short section 502 and an ultrasonic probe 503. The circuit protection tube pressure cap 501 is arranged at the end of the short section 502, and the ultrasonic probe 503 is connected to the short section 502 in an electrical circuit.

[0044] like Figure 1 and Figure 2As shown, the working principle of this solution is as follows: this solution sets a regulating tube 2 in the outer tube 1 of the water distributor, and the regulating tube 2 is connected to the upper joint 101 and the lower joint 105 respectively to realize the main channel water distribution function. On this basis, a first connecting hole group 203 and a second connecting hole group 204 are set on the regulating tube 2. The first connecting hole group 203 and the second connecting hole group 204 correspond to the two additional water injection passages 106 and the mechanical adjustment channel 107 respectively for water injection regulation. The faucet adjustment channel 106 is controlled by the faucet adjustment device, and the mechanical adjustment channel 107 realizes the control function by rotating the regulating tube 2 through an external device. By adjusting the degree of rotation, the overlap between the second connecting hole group 204 and the corresponding hole is adjusted to adjust the flow rate. This solution adopts a dual control system to avoid the problem that the faucet adjustment device cannot work after the electronic control fails, effectively improving the security.

[0045] Further, if Figure 1 As shown, the regulating tube 2 includes a central tube 201 and an regulating sleeve 202. The central tube 201 and the regulating sleeve 202 are sealed by connecting the main body 103, so that the pipelines between the first communicating hole group 203 and the second communicating hole group 204 are not connected to each other. When the measuring and adjusting instrument is lowered, the passage in the regulating tube 2 will be blocked. In order to maintain a continuous flow channel in the central tube and achieve non-stop injection, a bridge channel 108 is provided to allow the first communicating hole group 203 to be connected to the second communicating hole group 204 to ensure normal operation of the passage.

[0046] Further, if Figure 3-5 As shown, the faucet regulating device includes a regulating mechanism 3, a drive mechanism 4, and an electronic control mechanism 5. The flow regulating device 303 of the regulating mechanism 3 controls the faucet 304, thereby regulating the flow rate of water injected into the faucet regulating channel 106. The drive mechanism 4 is used to control the flow regulating device 303, which is instructed by the electronic control mechanism 5. The electronic control mechanism 5 connects to the cable connector 9 provided on the upper connector 101 and the lower connector 105 via a short section 502 to achieve external information transmission. It also transmits data acquired by electronic components such as the ultrasonic probe 503 and the pressure gauge 7 to provide feedback for external monitoring.

[0047] Two pressure gauges 7 are provided, one for monitoring the pressure inside and outside the water distributor's outer pipe 1. To prevent the regulating pipe 2 from rotating freely, a damping device 6 is provided to provide friction. This damping device 6 is implemented using elastic components and other elements. A pressure plate assembly 8 is provided on the device to store connector components such as cables, preventing them from being exposed.

[0048] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A dual-control underground cable intelligent water distributor, characterized in that: include: A faucet adjustment device and an adjustment pipe are provided in the outer tube of the water distributor. The adjustment pipe is rotatably connected to the outer tube of the water distributor. The two ends of the adjustment pipe are respectively connected to the upper joint and the lower joint of the outer tube of the water distributor. A first connecting hole group and a second connecting hole group are respectively provided on the adjustment pipe. The first connecting hole group is connected to the faucet adjustment channel provided on the outer tube of the water distributor. The faucet adjustment channel is provided in conjunction with the faucet adjustment device. The second connecting hole group matches the mechanical adjustment channel provided on the outer tube of the water distributor. The mechanical adjustment channel is provided with multiple corresponding holes. The corresponding holes are correspondingly connected to the second connecting hole group through the rotation of the adjustment pipe.

2. The dual-control underground cable intelligent water distributor according to claim 1, characterized in that: The outer pipe of the water distributor is composed of an upper joint, an upper shell, a connecting body, a lower shell and a lower joint which are connected in sequence.

3. The dual-control underground cable intelligent water distributor according to claim 2, characterized in that: A water nozzle adjustment channel is provided on the connecting body, and a mechanical adjustment channel is provided on the lower joint.

4. The dual-control underground cable intelligent water distributor according to claim 1, characterized in that: A bridge channel is provided on the outer pipe of the water distributor, and the bridge channel is respectively connected with the first communication hole group and the second communication hole group.

5. The dual-control underground cable intelligent water distributor according to claim 1, characterized in that: A damping device is provided inside the outer pipe of the water distributor, and the damping device is arranged in conjunction with the regulating pipe.

6. The dual-control underground cable intelligent water distributor according to claim 1, characterized in that: A pressure gauge is installed inside the outer pipe of the water distributor.

7. The dual-control underground cable intelligent water distributor according to claim 1, characterized in that: The adjusting tube includes a central tube and an adjusting sleeve, which are fixedly connected. The central tube is connected to the upper joint and is provided with a first connecting hole group. The adjusting sleeve is connected to the lower joint and is provided with a second connecting hole group.

8. A dual-control underground cable intelligent water distributor according to any one of claims 1 to 7, characterized in that: The faucet regulating device includes a regulating mechanism, a driving mechanism and an electric control mechanism. The regulating mechanism includes a regulating mechanism pressure cap, a regulating mechanism protective tube, a flow regulating device, a faucet and a faucet sealing plug. The regulating mechanism pressure cap is fixedly connected to the regulating mechanism protective tube. The regulating mechanism protective tube is provided with a flow regulating device, a faucet and a faucet sealing plug. The flow regulating device is arranged in conjunction with the faucet. The faucet is matched with a faucet sealing plug. The driving mechanism is arranged in conjunction with the flow regulating device, and the electronic control mechanism is connected to the driving mechanism circuit.

9. The dual-control underground cable intelligent water distributor according to claim 8, characterized in that: The electric control mechanism includes a circuit protection tube pressure cap, a short section and an ultrasonic probe. The circuit protection tube pressure cap is arranged at the end of the short section, and the ultrasonic probe is connected to the short section circuit.

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