A water distributor with detection function

Abstract

This invention belongs to the field of petroleum extraction technology, and specifically relates to a water distributor with a detection function. It includes a flow detection device and a fixed connection pipeline device. The fixed connection pipeline device includes an external hardware connection part. The flow detection device includes a mounting groove bottom, a thermally conductive adhesive layer, a mica thermally conductive layer, a platinum wire heating and temperature measuring layer, a platinum wire conductor, an insulating adhesive layer, a conductor hole, a conductor groove, a plug sealing ring, a clamping block, a threaded plug, and a detection sensor. This invention mounts the flow detection device on a sensor mounting body. During measurement, the platinum wire is continuously heated by an electric current for a period of time. The heat from the heated platinum wire continuously diffuses to the underlying mica thermally conductive layer, and then to the bottom of the mounting groove. When the platinum wire resistance R is heated, its resistance increases. The water flow in the pipeline, due to changes in flow rate, carries away different amounts of heat from the bottom of the mounting groove, resulting in different rates of decrease in the maximum value of the platinum wire resistance.

Description

Technical Field

[0001] This invention relates to the field of oil extraction technology, specifically to a water distributor with detection function. Background Technology

[0002] In the early stages of water injection technology development, limited by tubing and technology, a general water injection process was predominantly used. This involved directly injecting water into the formation from the tubing, without any control downhole, allowing for natural diversion. The total injection volume per well could only be controlled at the surface. Due to the significant differences in permeability among the various production layers, injected water often advanced rapidly along high-permeability layers, resulting in a severe "single-layer surge" phenomenon. This led to increased water cut in the well's production fluid and more ineffective water injection. This serious defect objectively spurred the development of stratified water injection technology. Stratified water injection involves installing packers, water distributors, and other tools downhole to inject water into the formation from the tubing. This not only allows for control of the total injection volume per well at the surface but also enables adjustment and control of the water injection volume in each formation downhole. Stratified water injection can alleviate inter-layer conflicts, balance water injection, and achieve the goal of refined water injection management.

[0003] However, traditional water distributors often use contact flow measurement technology (such as mechanical impellers, turbines, etc.). This type of technology senses the flow rate by directly contacting the fluid with mechanical parts. Although it is simple in structure and low in cost, it has drawbacks such as mechanical wear leading to a decrease in measurement accuracy and susceptibility to the influence of fluid characteristics. Therefore, we propose a water distributor with detection function to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a water distributor with a detection function, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0008] A water distributor with detection function includes a flow detection device and a fixed connection pipe device. The fixed connection pipe device includes an external hardware connection part. The flow detection device includes a bottom of the mounting groove, a thermally conductive adhesive layer, a mica sheet thermally conductive layer, a platinum wire heating and temperature measuring layer, a platinum wire conductor, an insulating adhesive layer, a conductor hole, a conductor groove, a plug sealing ring, a clamping block, a threaded plug, and a detection sensor.

[0009] Furthermore, the hardware connection part includes a positioning connector, a first sealing ring, a connecting sleeve, heat insulation adhesive, a second sealing ring, a sensor mounting body, an insulating tube, a sealing plug, a third sealing ring, a guide head, a straightening and circuit connection part.

[0010] Furthermore, the circuit connection portion includes a transmitting winding frame, a circuit frame, and a cable connector, wherein the internal circuitry of the circuit frame is connected to the cable connector for power supply.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, the present invention provides a water distributor with a detection function, which has the following beneficial effects:

[0013] This invention involves installing a flow detection device on a sensor mounting body. During measurement, a platinum wire is continuously energized and heated for a period of time. The heat from the heated platinum wire diffuses to the underlying mica thermally conductive layer and then to the bottom of the mounting groove. When the platinum wire resistor R is heated, its resistance increases. The water flow in the pipe will carry away different amounts of heat from the bottom of the mounting groove due to changes in flow rate, resulting in different rates of decrease in the maximum value of the platinum wire resistor. Different rates of decrease in the platinum wire resistor correspond to different flow rates. By calibrating the platinum wire resistor with different flow rates of the same liquid, corresponding values ​​are obtained. Different values ​​correspond to different flow rates. Thus, the flow rate of the liquid in the pipe can be measured by utilizing the thermal response characteristics of the platinum wire resistor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the flow detection device of the present invention.

[0016] In the diagram: 1. Flow detection device; 101. Bottom of mounting groove; 102. Thermally conductive adhesive layer; 103. Mica sheet thermally conductive layer; 104. Platinum wire heating and temperature measuring layer; 105. Platinum wire conductor; 106. Insulating adhesive layer; 107. Wire hole; 108. Wire groove; 109. Plug sealing ring; 110. Clamping block; 111. Threaded plug; 112. Detection sensor; 2. Fixed connection pipe device; 201. Hardware connection part; 20101. Positioning joint; 201 02. First sealing ring; 20103. Connecting sleeve; 20104. Heat insulation adhesive; 20105. Second sealing ring; 20106. Sensor mounting body; 20107. Insulating tube; 20108. Sealing plug; 20109. Third sealing ring; 20110. Guide head; 20111. Straightening; 20112. Circuit connection part; 2011201. Transmitter winding frame; 2011202. Circuit frame; 2011203. Cable connector. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example

[0019] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a water distributor with a detection function, including a flow detection device 1 and a fixed connection pipe device 2. The fixed connection pipe device 2 includes an external hardware connection part 201. The flow detection device 1 includes a mounting groove bottom 101, a thermally conductive adhesive layer 102, a mica sheet thermally conductive layer 103, a platinum wire heating and temperature measuring layer 104, a platinum wire conductor 105, an insulating adhesive layer 106, a conductor hole 107, a conductor groove 108, a plug sealing ring 109, a clamping block 110, a threaded plug 111, and a detection sensor 112. In the process of using this water distributor with a detection function, the mounting groove bottom 101 is connected to the mica sheet thermally conductive layer 103 using the thermally conductive adhesive layer 102. The platinum wire heating and temperature measuring layer 104 is fixed by the insulating adhesive layer 106, and platinum wire conductors 105 are led out from both ends of the platinum wire and enter the conductor groove 108 through the conductor hole 107 opened in the clamping block 110. Then it is connected to the circuit board inside the hardware connection part 201, and the clamping block 110 is placed above the insulating glue layer 106 to press the entire lower part. The clamping block 110 can be tightened by using the threaded plug 111, and the plug sealing ring 109 seals the entire flow detection device 1. When the circuit is powered, the platinum wire heating temperature measuring layer 104 starts to heat up and the resistance starts to change. After a certain period of power supply, the resistance no longer changes and reaches the extreme value. After the power is cut off, the external liquid flow will carry away heat. Different flow rates carry away different amounts of heat. At this time, the flow signal is converted into a dynamic change signal of the resistance value of the platinum wire 105 by the principle of heat generation through the heating of the platinum wire 105 and heat carrying away by the liquid flow. Then, the flow rate of the liquid in the pipeline is measured by the thermal response characteristics of the resistance of the platinum wire 105, avoiding the failures that may occur due to mechanical wear, blockage, etc. in traditional contact flow measurement.

[0020] like Figure 1As shown, in some embodiments, the hardware connection portion 201 includes a positioning connector 20101, a first sealing ring 20102, a connecting sleeve 20103, a heat insulation adhesive 20104, a second sealing ring 20105, a sensor mounting body 20106, an insulating tube 20107, a sealing plug 20108, a third sealing ring 20109, a guide head 20110, a straightening head 20111, and a circuit connection portion 20112. The circuit connection portion 20112 includes a transmitting winding frame 2011201, a circuit frame 2011202, and a cable connector 2011203. The internal circuit of the circuit frame 2011202 is connected to the cable connector 2011203 for power supply. When the two ends of the platinum wire 105 are led out through the wire holes 107 inside the clamping block 110 and enter the wire groove 108, it is connected to the circuit board inside the circuit frame 2011202. In use, the positioning connector 20101... 101 is used to position the circuit frame 2011202. The first sealing ring 20102 is used to fix the circuit frame 2011202 and the sensor mounting body 20106. The connecting sleeve 20103 protects the circuit frame 2011202 from the outside and is connected to the sensor mounting body 20106. The heat insulation adhesive 20104 is placed around the bottom of the flow detection device 1 to block the residual heat emitted by it and let the heat flow to the bottom. The insulating tube 20107 is wrapped around the outside of the transmitting winding frame 2011201. The second sealing ring 20105 connects the insulating tube 20107 to the sensor mounting body 20106 and the sealing plug 20108. The third sealing ring 20109 is used to connect the guide head 20110 and the sealing plug 20108. Furthermore, the height of the entire water distributor in the oil pipe can be controlled by adjusting the length of the cable connector 2011203 by the trolley.

[0021] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water distributor with a detection function, comprising a flow detection device (1) and a fixed connection pipe device (2), characterized in that: The fixed connection pipe device (2) includes a hardware connection part (201); The flow detection device (1) includes a mounting groove bottom (101), a thermally conductive adhesive layer (102), a mica sheet thermally conductive layer (103), a platinum wire heating and temperature measuring layer (104), a platinum wire conductor (105), an insulating adhesive layer (106), a wire hole (107), a wire groove (108), a plug sealing ring (109), a clamping block (110), a threaded plug (111), and a detection sensor (112); The hardware connection part (201) includes a positioning connector (20101), a first sealing ring (20102), a connecting sleeve (20103), heat insulation adhesive (20104), a second sealing ring (20105), a sensor mounting body (20106), an insulating tube (20107), a sealing plug (20108), a third sealing ring (20109), a guide head (20110), a straightener (20111), and a circuit connection part (20112); During the use of this water distributor with detection function, the bottom (101) of the installation tank is connected to the mica sheet thermally conductive layer (103) using a thermally conductive adhesive layer (102). The platinum wire heating temperature measuring layer (104) is fixed with an insulating adhesive layer (106), and platinum wire leads (105) are led out from both ends of the platinum wire, passing through the wire holes (107) opened in the clamping block (110) and entering the wire groove (108) inside, and then connecting to the circuit board inside the hardware connection part (201). The clamping block (110) is placed above the insulating adhesive layer (106) to press the entire structure below. The clamping block (110) can be tightened by using a threaded plug (111). 0), while the plug sealing ring (109) seals the entire flow detection device (1). When the circuit is powered, the platinum wire heating temperature measuring layer (104) starts to heat up and the resistance starts to change. After a certain period of power supply, the resistance no longer changes and reaches the extreme value. After the power is cut off, the external liquid flow will carry away heat. Different flow rates carry away different amounts of heat. At this time, the flow signal is converted into a dynamic change signal of the resistance value of the platinum wire (105) by the principle of heat generation through the platinum wire (105) heating and heat carrying away by the liquid flow. Then, the flow rate of the liquid in the pipeline is measured by the thermal response characteristics of the resistance of the platinum wire (105).

2. The water distributor with a detection function according to claim 1, characterized in that: The circuit connection part (20112) includes a transmitting winding frame (2011201), a circuit frame (2011202), and a cable connector (2011203). The internal circuit of the circuit frame (2011202) is connected to the cable connector (2011203) for power supply.

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