Novel oil extraction water injection metering device

Abstract

The utility model discloses a novel oil extraction water injection metering device which comprises a water injection meter, the left end of the water injection meter is fixedly communicated with a water injection pump, the water injection pump provides extraction force, the extraction end of the water injection pump is fixedly communicated with a switchable water injection mechanism, and due to the arrangement of the switchable water injection mechanism, a standby water source can be switched when external water supply is cut off. The right end of the water injection meter is fixedly communicated with an installation box, and a flow adjusting mechanism is fixedly installed in the installation box. Through the arrangement of a series of structures, water flow can be adjusted and controlled in the water injection process, so that the device can be suitable for different oil wells, the influence of excessive water injection in unit time on oil extraction work can be effectively reduced, water sources can be automatically switched, and standby water can be used for continuously injecting water when water is cut off from the outside; and the connecting pipe can be automatically blocked to prevent water backflow when water injection is stopped, and the stability in the oil extraction process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil production water injection metering equipment technical field especially relates to a novel oil production water injection metering device. BACKGROUND

[0002] Crude oil is one of the resources that the society needs in larger quantity at present, in the crude oil exploitation process, in order to guarantee the convenience of exploitation process, need to inject water to oil well, to improve the oil level, need to carry out the metering to the water injection quantity through oil production water injection metering device simultaneously, to facilitate better control of water injection quantity;

[0003] The oil production water injection metering device in prior art is a simple metering meter, and the function is relatively single, and the following deficiencies exist in the use process: 1, the water inlet end of metering meter is connected with the external water supply pipe, and when the external water stops, water injection will stop, thereby affecting the subsequent oil production operation;2, lack the structure for adjusting and controlling the water injection flow in the process of water injection, the water injection quantity required by different oil well units in unit time is different, and too much water injection in unit time will affect the oil production work;3, when stopping water injection, lack the backflow prevention structure, because the pressure in oil production well is large, there is the water backflow condition;In view of the above situation, the present application provides a novel oil production water injection metering device. UTILITARIAN CONTENT

[0004] The utility model discloses a novel oil production water injection metering device that solves the shortcomings in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] The utility model provides a novel oil production water injection metering device, including water injection metering meter, the left end intercommunication fixed with water injection pump of water injection metering meter, and water injection pump provides the extraction force, and the extraction end intercommunication fixed with switchable water injection mechanism of water injection pump, the setting of switchable water injection mechanism, when the outside water stop, switchable standby water source, the right end intercommunication fixed with mounting box of water injection metering meter, fixed mounting has flow regulation mechanism in mounting box, and flow regulation mechanism is used for adjusting the water flow that passes, the right side intercommunication fixed with connecting pipe of mounting box, the inside left end of connecting pipe is equipped as taper structure, and the automatic plugging mechanism of anti -backflow is installed in connecting pipe, and the automatic plugging mechanism of anti -backflow is used for the automatic plugging of connecting pipe, and the right end intercommunication fixed with second flow sensor of connecting pipe, and second flow sensor is used for detecting the water flow that passes, and the top fixed mounting has PLC controller of left side of mounting box, and PLC controller is electrically connected with water injection metering meter, water injection pump, switchable water injection mechanism, flow regulation mechanism and second flow sensor, and PLC controller receives the signal of water injection metering meter and controls water injection pump, and its control principle is the basic programming setting numerical control control mode that the person skilled in the art is familiar with, and it can be realized by the corresponding control numerical value program edited by numerical control programmer, all belong to conventional means or common knowledge, and here will not repeat.

[0007] Preferably, the switchable water injection mechanism includes a tee pipe fixedly connected to the extraction end of the water injection pump, a first electromagnetic valve fixedly connected to the top end of the tee pipe, a first flow sensor fixedly connected to the top of the first electromagnetic valve, a second electromagnetic valve fixedly connected to the left end of the tee pipe, and a standby water tank fixedly connected to the left end of the second electromagnetic valve. The first flow sensor, the first electromagnetic valve, and the second electromagnetic valve are electrically connected to the PLC controller. The PLC controller receives the signal of the first flow sensor and controls the first electromagnetic valve and the second electromagnetic valve to achieve the effect of switching water sources.

[0008] Preferably, the flow regulation mechanism includes a U-shaped mounting plate fixedly installed between the front inner wall, the rear inner wall, the top inner wall, and the bottom inner wall of the mounting box. A sealing sliding sleeve is arranged between the front inner wall and the rear inner wall of the U-shaped mounting plate, and a blocking plate is arranged in the sealing sliding sleeve. The blocking plate is used to block the U-shaped mounting plate. The top of the blocking plate extends above the mounting box and is fixedly connected with a moving block. The mounting box and the U-shaped mounting plate are sealingly sleeved on the blocking plate. An electric telescopic rod is embedded and fixed to the top of the U-shaped mounting plate. The output shaft top end of the electric telescopic rod is fixedly connected with the bottom of the moving block. The electric telescopic rod is electrically connected to the PLC controller. The electric telescopic rod drives the blocking plate to move vertically through the moving block. The PLC controller receives the signal of the second flow sensor and controls the electric telescopic rod.

[0009] Preferably, the anti-backflow automatic plugging mechanism comprises a conical plug movably sleeved in the connecting pipe and matched with the conical structure, a support rod fixedly connected between the inner walls of the front side and the rear side of the connecting pipe, a T-shaped guide rod fixedly connected to the right side of the conical plug, the support rod being slidably sleeved on the T-shaped guide rod, a spring fixedly connected between the right inner wall of the T-shaped guide rod and the right side of the support rod, and the spring being movably sleeved on the T-shaped guide rod.

[0010] Preferably, a water adding pipe is fixedly connected to the top left side of the standby water tank, and water can be added into the standby water tank through the water adding pipe.

[0011] Preferably, the outer side of the plugging plate is adhesively coated with a sealing rubber, a first rectangular hole is formed in the top inner wall of the U-shaped mounting plate, a second rectangular hole is formed in the top inner wall of the mounting box, and the outer side of the sealing rubber movably contacts the inner walls of the first rectangular hole and the second rectangular hole, the front inner wall and the rear inner wall of the U-shaped mounting plate, and the bottom inner wall of the mounting box.

[0012] Preferably, an embedding groove is formed in the top of the U-shaped mounting plate, a wireless remote control switch is fixedly and electrically connected to the rear side of the electric telescopic rod, the wireless remote control switch is located in the embedding groove, the two side inner walls of the embedding groove are fixedly connected with the two sides of the electric telescopic rod, respectively, the wireless remote control switch is matched with an external remote controller, and the wireless remote control switch and the external remote controller are matched to remotely control the electric telescopic rod.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The water flow can be adjusted and controlled through the cooperation of the PLC controller, the flow adjusting mechanism and the second flow sensor, so that the device can be applied to different oil wells, and the influence of excessive water injection on oil extraction work in unit time can be effectively reduced.

[0015] 2. The water source can be automatically switched to continue water injection work using the standby water when external water is stopped, so that the oil extraction work can be continuously carried out without affecting the stability of the oil extraction work.

[0016] 3. The connecting pipe can be automatically plugged when water injection is stopped through the anti-backflow automatic plugging mechanism, so that the water backflow can be effectively avoided, and the stability in use can be improved.

[0017] The utility model discloses a series of structure's setting can adjust and control the water flow in the process of water injection, make can be applicable to different oil well, can effectively reduce the influence of the overmuch water injection in unit time to oil production work, can automatically switch water source when external water stop, continue water injection with standby water, and can automatically block the connecting pipe and prevent water backflow when stopping water injection, improve the stability in the oil production process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional structure schematic view of a novel oil production water injection metering device is provided in the utility model.

[0019] Figure 2 A front view cross-sectional structure schematic view of a novel oil production water injection metering device is provided in the utility model.

[0020] Figure 3 A Figure 2 Enlarged structure schematic view of part A.

[0021] Figure 4 A PLC controller and multiple electrical components connection block diagram of a novel oil production water injection metering device are provided in the utility model.

[0022] In the drawing: 100, water injection metering meter;101, water injection pump;1, standby water tank;2, three-way pipe;3, second electromagnetic valve;4, first flow sensor;5, first electromagnetic valve;6, mounting box;7, PLC controller;8, U-shaped mounting plate;9, blocking plate;10, moving block;11, electric telescopic rod;12, second flow sensor;13, connecting pipe;14, conical plug;15, T-shaped guide rod;16, support rod;17, spring. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments.

[0024] Refer to Figures 1-4The utility model provides a novel oil production water injection metering device, including water injection metering meter 100, the left end of water injection metering meter 100 is connected with fixed water injection pump 101, and water injection pump 101 provides extraction force, and the extraction end of water injection pump 101 is connected with fixed switchable water injection mechanism, and switchable water injection mechanism includes the tee pipe 2 of being connected with fixed in the extraction end of water injection pump 101, the top of tee pipe 2 is connected with fixed first electromagnetic valve 5, and the top of first electromagnetic valve 5 is connected with fixed first flow sensor 4, the left end of tee pipe 2 is connected with fixed second electromagnetic valve 3, and the left end of second electromagnetic valve 3 is connected with fixed spare water tank 1, wherein the top left side of spare water tank 1 is connected with fixed water pipe, and water can be added to spare water tank 1 through water pipe;

[0025] The right end of water injection metering meter 100 is connected with fixed mounting box 6, and flow regulating mechanism is fixedly installed in mounting box 6, and flow regulating mechanism includes U-shaped mounting plate 8 fixedly installed between the front inner wall, rear inner wall, top inner wall and bottom inner wall of mounting box 6, sealingly sleeved with blocking plate 9 between the front inner wall and rear inner wall of U-shaped mounting plate 8, and blocking plate 9 is used to block U-shaped mounting plate 8, and the top of blocking plate 9 extends above mounting box 6 and is fixedly connected with moving block 10, and mounting box 6 and U-shaped mounting plate 8 are sealingly sleeved on blocking plate 9, wherein the outside of blocking plate 9 is bonded with sealing rubber, a first rectangular hole is formed in the top inner wall of U-shaped mounting plate 8, a second rectangular hole is formed in the top inner wall of mounting box 6, and the outside of sealing rubber is in movable contact with the inner wall of first rectangular hole, the inner wall of second rectangular hole, the front inner wall and rear inner wall of U-shaped mounting plate 8 and the bottom inner wall of mounting box 6, sealing is realized between blocking plate 9 and U-shaped mounting plate 8 and mounting box 6 through sealing rubber, and electric telescopic rod 11 is embeddedly fixed on the top of U-shaped mounting plate 8, wherein an embedding groove is formed in the top of U-shaped mounting plate 8, a wireless remote control switch is fixedly connected and electrically connected to the rear side of electric telescopic rod 11, and the wireless remote control switch is located in the embedding groove, the two side inner walls of embedding groove are fixedly connected with the two sides of electric telescopic rod 11 respectively, and the wireless remote control switch is matched with an external remote controller, and the wireless remote control switch and the external remote controller cooperate to remotely control electric telescopic rod 11, and the output shaft top end of electric telescopic rod 11 is fixedly connected with the bottom of moving block 10, and electric telescopic rod 11 drives blocking plate 9 to move vertically through moving block 10;

[0026] The right side of the installation box 6 is communicated and fixedly connected with a connecting pipe 13, the inner left end of the connecting pipe 13 is provided with a tapered structure, the connecting pipe 13 is internally provided with an anti-backflow automatic blocking mechanism, the anti-backflow automatic blocking mechanism comprises a tapered blocking piece 14 movably sleeved in the connecting pipe 13 and matched with the tapered structure, a supporting rod 16 is fixedly connected between the front inner wall and the rear inner wall of the connecting pipe 13, a T-shaped guide rod 15 is fixedly connected to the right side of the tapered blocking piece 14, the supporting rod 16 is slidably sleeved on the T-shaped guide rod 15, a guide hole is formed in the right side of the supporting rod 16 and slidably sleeved with the outer side of the T-shaped guide rod 15, a spring 17 is fixedly connected between the right inner wall of the T-shaped guide rod 15 and the right side of the supporting rod 16, and the spring 17 is movably sleeved on the T-shaped guide rod 15; by the elastic force of the spring 17, the T-shaped guide rod 15 is driven to move leftwards and reset when the extrusion force disappears in the stretched state of the spring 17.

[0027] The right end of the connecting pipe 13 is communicated and fixedly connected with a second flow sensor 12, the second flow sensor 12 is used for detecting the water flow, a PLC controller 7 is fixedly installed on the left top of the installation box 6, the PLC controller 7 is electrically connected with the water injection meter 100, the water injection pump 101, the first flow sensor 4, the first electromagnetic valve 5, the second electromagnetic valve 3, the electric telescopic rod 11 and the second flow sensor 12, the PLC controller 7 receives the signal of the water injection meter 100 to control the water injection pump 101, the PLC controller 7 receives the signal of the first flow sensor 4 to control the first electromagnetic valve 5 and the second electromagnetic valve 3, so that the water source is switched, and the PLC controller 7 receives the signal of the second flow sensor 12 to control the electric telescopic rod 11; the above control principle is a basic numerical control control mode of programming setting known to those skilled in the art, and the corresponding control value program can be realized by numerical control programming personnel, which belongs to a conventional means or common knowledge, and will not be described here; through the arrangement of a series of structures, the water flow can be adjusted and controlled during water injection, so that it can be applied to different oil wells, the influence of excessive water injection on oil production in unit time can be effectively reduced, the water source can be automatically switched when external water stops, standby water can be used for water injection, and the connecting pipe 13 can be automatically blocked to prevent water backflow when water injection stops, so that the stability in the oil production process is improved.

[0028] Working principle: when in use, the standby water tank 1 is filled with water in advance through the water filling pipe, the top end of the first flow sensor 4 is connected with the external water supply pipe during water injection into the oil well, the flow value of the electric telescopic rod 11 is set by the PLC controller 7 according to the water injection needs of the oil well, the first electromagnetic valve 5 is controlled to be closed and the second electromagnetic valve 3 is controlled to be opened when the flow value is no longer increased by the PLC controller 7, and the threshold value of the injected water amount is set by the PLC controller 7, and the water injection pump 101 is controlled to be closed when the threshold value is reached.

[0029] In the normal water injection operation, the wireless remote control switch is controlled by the external remote controller to open the electric telescopic rod 11 in the forward direction. The output shaft of the electric telescopic rod 11 drives the blocking plate 9 to move upward and separate from the inner wall of the bottom of the mounting box 6 through the moving block 10, thereby releasing the blockage of the bottom of the U-shaped mounting plate 8. Then the water injection pump 101 is opened, and the water injection pump 101 extracts water, which enters the connecting pipe 13 in sequence through the first flow sensor 4, the first electromagnetic valve 5, the three-way pipe 2, the water injection meter 100, the mounting box 6 and the U-shaped mounting plate 8. The water in the connecting pipe 13 extrudes the tapered blocking block 14. Under the extrusion force, the tapered blocking block 14 moves to the right, the tapered blocking block 14 drives the T-shaped guide rod 15 to move to the right and stretch the spring 17. The tapered blocking block 14 moves to the right while gradually separating from the inner wall of the connecting pipe 13, thereby releasing the blockage of the connecting pipe 13. The water enters the second flow sensor 12 through the gap between the outer side of the tapered blocking block 14 and the connecting pipe 13, and flows out to the external water injection pipe through the second flow sensor 12. The second flow sensor 12 detects the flow of water and transmits the detected flow value to the PLC controller 7. When the unit flow is detected to be large, the PLC controller 7 controls the electric telescopic rod 11 to be activated in the reverse direction, so that the blocking plate 9 moves downward. The distance between the blocking plate 9 and the mounting box 6 gradually decreases, so that the water flow cross section gradually decreases, thereby reducing the water flow. When the water flow reaches the preset value, the PLC controller 7 controls the electric telescopic rod 11 to be closed, thereby achieving the effect of adjusting and controlling the water flow, which can effectively reduce the influence of excessive water injection on oil production per unit time.

[0030] In the process of water injection, the first flow sensor 4 detects the flow of water flowing through it. When the water flow is detected to stop increasing, it is proved that the external water supply pipe is stopped. At this time, the PLC controller 7 controls the first electromagnetic valve 5 to be closed and controls the second electromagnetic valve 3 to be opened, so that the water enters the water injection pump 101 in sequence through the standby water tank 1, the second electromagnetic valve 3 and the three-way pipe 2, thereby realizing automatic switching of water source when the external water supply is stopped during water injection. The standby water is used to continue water injection work, which does not affect the continuous oil production work and maintains the stability of the oil production work.

[0031] In the process of water injection, the water injection meter 100 detects the water flow. When the water flow reaches the preset value, the PLC controller 7 controls the water injection pump 101 to be closed, so that the water stops entering the connecting pipe 13. The extrusion force of the water on the tapered blocking block 14 disappears. At this time, the spring 17 in the stretched state drives the T-shaped guide rod 15 to move to the left. The T-shaped guide rod 15 drives the tapered blocking block 14 to move to the left to block the connecting pipe 13. By automatically blocking the connecting pipe 13 when stopping water injection, the water backflow can be effectively avoided, thereby improving the stability during use.

[0032] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A novel oil production water injection metering device comprising a water injection meter (100) characterized by, The left end of the water injection meter (100) is in communication with a fixed water injection pump (101), the extraction end of the water injection pump (101) is in communication with a switchable water injection mechanism, the right end of the water injection meter (100) is in communication with a fixed mounting box (6), the mounting box (6) is fixedly installed with a flow regulating mechanism, the right side of the mounting box (6) is in communication with a fixed connecting pipe (13), the inside left end of the connecting pipe (13) is tapered, the connecting pipe (13) is installed with an anti-backflow automatic blocking mechanism, the right end of the connecting pipe (13) is in communication with a second flow sensor (12), the left side top of the mounting box (6) is fixedly installed with a PLC controller (7), and the PLC controller (7) is electrically connected with the water injection meter (100), the water injection pump (101), the switchable water injection mechanism, the flow regulating mechanism and the second flow sensor (12).

2. A novel oil production water injection metering device according to claim 1, characterized in that, The switchable water injection mechanism comprises a three-way pipe (2) in communication with the extraction end of the water injection pump (101), the top end of the three-way pipe (2) is in communication with a fixed first electromagnetic valve (5), the top of the first electromagnetic valve (5) is in communication with a fixed first flow sensor (4), the left end of the three-way pipe (2) is in communication with a fixed second electromagnetic valve (3), and the left end of the second electromagnetic valve (3) is in communication with a fixed standby water tank (1). The first flow sensor (4), the first electromagnetic valve (5) and the second electromagnetic valve (3) are electrically connected with the PLC controller (7).

3. A novel oil production water injection metering device according to claim 1, characterized in that, The flow regulating mechanism comprises a U-shaped mounting plate (8) fixedly installed between the front, rear, top and bottom inner walls of the mounting box (6), a blocking plate (9) sealingly and slidably sleeved between the front and rear inner walls of the U-shaped mounting plate (8), the top of the blocking plate (9) extending above the mounting box (6) and being fixedly connected with a moving block (10), the mounting box (6) and the U-shaped mounting plate (8) being sealingly and slidably sleeved on the blocking plate (9), an electric telescopic rod (11) being embedded and fixed at the top of the U-shaped mounting plate (8), the output shaft top of the electric telescopic rod (11) being fixedly connected with the bottom of the moving block (10), and the electric telescopic rod (11) being electrically connected with the PLC controller (7).

4. The novel oil production water injection metering device according to claim 1, characterized in that, The anti-backflow automatic blocking mechanism comprises a tapered blocking piece (14) movably sleeved in the connecting pipe (13) and matched with the tapered structure of the connecting pipe (13), a support rod (16) fixedly connected between the front and rear inner walls of the connecting pipe (13), a T-shaped guide rod (15) fixedly connected with the right side of the tapered blocking piece (14), the support rod (16) slidably sleeved on the T-shaped guide rod (15), and a spring (17) movably sleeved on the T-shaped guide rod (15) and fixedly connected between the right side inner wall of the T-shaped guide rod (15) and the right side of the support rod (16).

5. The novel oil production water injection metering device according to claim 2, characterized in that, The top left side of the standby water tank (1) is in communication with a fixed water adding pipe.

6. A novel oil production water injection metering device as claimed in claim 3, wherein, The outer side of the sealing plate (9) is bonded with sealing rubber, a first rectangular hole is arranged on the inner wall of the top of the U-shaped mounting plate (8), a second rectangular hole is arranged on the inner wall of the top of the mounting box (6), and the outer side of the sealing rubber is in movable contact with the inner wall of the first rectangular hole, the inner wall of the second rectangular hole, the inner wall of the front side and the rear side of the U-shaped mounting plate (8) and the inner wall of the bottom of the mounting box (6).

7. A novel oil production water injection metering device as claimed in claim 3, wherein, The top of the U-shaped mounting plate (8) is provided with an embedded groove, the rear side of the electric telescopic rod (11) is fixedly connected with a wireless remote control switch, the wireless remote control switch is located in the embedded groove, the two side inner walls of the embedded groove are fixedly connected with the two sides of the electric telescopic rod (11) respectively, and the wireless remote control switch is matched with an external remote controller.

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