Water injection device for oil-gas field development

Abstract

The utility model relates to the technical field of oil-gas field development equipment, in particular to a water injection device for oil-gas field development, which comprises a water suction pump and a water injection component, and the water injection component comprises a water delivery pipe, a switching channel, a water injection pipe, a knob, a water stop plate and two filter components. The filtering component comprises a filtering channel, a connecting channel, a control valve and a filter screen; when the filter screen on one filter component is blocked, the control valve on the filter component is controlled to be closed firstly, and meanwhile, a worker rotates the water stop plate by holding the knob to enable the other filter channel to be communicated with the switching channel, so that water flows into the filter channel of the other filter screen which is not blocked; water enters the right end of the switching channel through the filtering channel and the connecting channel, and then a worker can detach the blocked filter screen for cleaning; according to the utility model, the blocked filter screen can be detached and cleaned without shutdown, so that the water injection work of an oil and gas field can be continuously carried out, and the water injection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas field development equipment technical field especially, relates to a water injection unit for oil and gas field development. BACKGROUND

[0002] After oil field is put into development, with the growth of mining time, the energy of oil layer will be consumed constantly, causes oil layer pressure to drop constantly, a large amount of underground crude oil is degassed, viscosity increases, oil well production is greatly reduced, even will stop spraying and stop production, causes a large number of dead oil to be left in the ground and not to be mined out. In order to make up the underground deficit caused after the crude oil is mined, keep or improve oil layer pressure, realize oil field high yield and stable production, and obtain higher recovery rate, the oil field must be water injected, and in desert and other areas, water is relatively scarce, and the sewage needs to be filtered and used for water injection work, but the existing water injection device cannot treat sewage.

[0003] The prior art CN221544205U discloses a kind of digital water injection units for oil and gas field development, including inlet pipe, inlet pipe lower part is provided with filter tank, first filter screen is arranged in filter tank, first filter screen and second filter screen left side are provided with handle, filter tank right side is provided with water pump, drain pipe lower part is provided with sediment tank, motor is arranged at the top of sediment tank, motor lower part is provided with stirring shaft, stirring shaft both sides are provided with stirring rod, sediment tank bottom is provided with mud pump, mud pump lower part is provided with mud storage tank, sediment tank right side is provided with water storage tank, first filter screen and second filter screen lower part are provided with support seat, first filter screen and second filter screen outer side are provided with baffle. By being provided with filter tank and sediment tank, sewage can be treated to be used for water injection work;By being provided with handle outside filter screen, sediment tank bottom is provided with mud pump, so that the cleaning of the device is more simple and fast.

[0004] However, when the filter screen is blocked, the filter screen needs to be disassembled and cleaned after stopping, which prevents continuous water injection in oil and gas field, and reduces water injection efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of water injection units for oil and gas field development, to solve the problem that when the filter screen of the existing digital water injection units for oil and gas field development is blocked, the filter screen needs to be disassembled and cleaned after stopping, which prevents continuous water injection in oil and gas field, and reduces water injection efficiency.

[0006] To achieve the above object, the utility model provides a kind of water injection units for oil and gas field development, including water pump and water injection assembly, the water injection assembly includes water delivery pipe, switching channel, water injection pipe, knob, water stop plate and two filter components;

[0007] The water delivery pipe and the water pump are fixedly connected and communicated, and located at the side of the water pump; the switching channel and the water delivery pipe are fixedly connected and communicated, and located at the side of the water delivery pipe; the water injection pipe and the switching channel are fixedly connected and communicated, and located at the end of the switching channel away from the water delivery pipe; the knob and the switching channel are rotationally connected, and located at the side of the switching channel; the water stop plate and the knob are fixedly connected, and located inside the switching channel; two filter components are located at both sides of the switching channel, and the filter component comprises a filter channel, a connecting channel, a control valve and a filter screen; the filter channel is arranged at the side of the switching channel, the connecting channel is arranged between the filter channel and the switching channel; the control valve and the connecting channel are fixedly connected, and located at the side of the connecting channel; and the filter screen is arranged inside the filter channel.

[0008] The water injection assembly further comprises locking bolts and two screw hole seats; the locking bolts are threadedly connected with the knob and penetrate the knob; and the two screw hole seats are fixedly connected with the switching channel and located at the side of the switching channel respectively.

[0009] The filter channel comprises a channel shell, a plurality of supporting blocks and a sealing member; the channel shell is fixedly connected with the switching channel and the connecting channel, and located between the switching channel and the connecting channel; the plurality of supporting blocks are fixedly connected with the channel shell and located inside the channel shell respectively; and the sealing member is arranged at the side of the channel shell.

[0010] The sealing member comprises a sealing plate and a plurality of connecting bolts; the sealing plate is located at the side of the channel shell; the plurality of connecting bolts are threadedly connected with the sealing plate and the channel shell respectively, and located at the side of the sealing plate respectively.

[0011] The sealing member further comprises a hook and a hanging ring; the hook is fixedly connected with the sealing plate and located at the side of the sealing plate; and the hanging ring is fixedly connected with the filter screen and located at the side of the filter screen.

[0012] The utility model discloses a water injection device for oil and gas field development, when carrying out water injection to oil and gas field, the water pump is connected with external water source, the water pump draws water to the water pipe, and water flows through the water pipe and enters the left end of the switching channel, and water is blocked by the water stop board and enters one of the filter channels, the filter screen in the filter channel filters the impurity in water, and the filtered water flows back to the right end of the switching channel through the connecting channel, and finally is injected into the oil layer of oil and gas field from the water injection pipe, when the filter screen on one of the filter parts is blocked, the staff controls the control valve on the filter part to close first, and the staff rotates the water stop board by holding the knob, makes the water stop board overturn and makes the both ends of the water stop board abut against the inner wall of two filter channels respectively, makes another filter channel communicate with the switching channel, makes water flow into another filter channel of unblocked filter screen, and water enters the right end of the switching channel through the filter channel and connecting channel, finally is injected into the oil layer of oil and gas field from the water injection pipe, and then the staff can dismount the blocked filter screen and clean it, the utility model can dismount and clean the blocked filter screen under the condition of not stopping under the condition that one of the filter screens is blocked, makes the water injection work of oil and gas field can continue, improves water injection efficiency, solves the problem that when the filter screen of the existing digital water injection device for oil and gas field development is blocked, needs to stop and dismount the filter screen and clean it, makes the water injection work of oil and gas field unable to continue, thereby reduces water injection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows.

[0014] Figure 1 It is the overall structure schematic view of the utility model.

[0015] Figure 2 It is the overall front view of the utility model.

[0016] Figure 3 It is the overall side view of the utility model.

[0017] Figure 4 It is the structure schematic view of the filter screen and sealing element of the utility model.

[0018] Figure 5 It is the structure schematic view of another view of the filter screen and sealing element of the utility model.

[0019] 101-pump, 102-water pipe, 103-switching channel, 104-water injection pipe, 105-knob, 106-water stop plate, 107-filtering component, 108-filtering channel, 109-connection channel, 110-control valve, 111-filter screen, 112-locking bolt, 113-bolt seat, 114-channel shell, 115-supporting block, 116-sealing element, 117-sealing plate, 118-connection bolt, 119-hook, 120-hanging ring. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0021] Please refer to Figures 1-5 , wherein, Figure 1 is a structural schematic diagram of the whole of the present application, Figure 2 is a front view cross-sectional diagram of the whole of the present application, Figure 3 is a side view cross-sectional diagram of the whole of the present application, Figure 4 is a structural schematic diagram of the filter screen and the sealing element of the present application, Figure 5 is a structural schematic diagram of the filter screen and the sealing element of the present application from another perspective.

[0022] The present application provides a water injection device for oil and gas field development, comprising a pump 101 and a water injection assembly, the water injection assembly comprising a water pipe 102, a switching channel 103, a water injection pipe 104, a knob 105, a water stop plate 106, two filtering components 107, a locking bolt 112 and two bolt seats 113; the filtering component 107 comprises a filtering channel 108, a connection channel 109, a control valve 110 and a filter screen 111; the filtering channel 108 comprises a channel shell 114, a plurality of supporting blocks 115 and a sealing element 116; the sealing element 116 comprises a sealing plate 117, a plurality of connection bolts 118, a hook 119 and a hanging ring 120; the foregoing scheme solves the problem that the existing digital water injection device for oil and gas field development needs to be stopped and the filter screen 111 needs to be disassembled and cleaned when the filter screen 111 is blocked, which leads to the discontinuation of the water injection work of the oil and gas field, thereby reducing the water injection efficiency.

[0023] For this specific embodiment, the water delivery pipe 102 and the water pump 101 are fixedly connected and communicated, and located at the side of the water pump 101; the switching channel 103 and the water delivery pipe 102 are fixedly connected and communicated, and located at the side of the water delivery pipe 102; the water injection pipe 104 and the switching channel 103 are fixedly connected and communicated, and located at the end of the switching channel 103 away from the water delivery pipe 102; the knob 105 and the switching channel 103 are rotationally connected, and located at the side of the switching channel 103; the water stop plate 106 and the knob 105 are fixedly connected, and located inside the switching channel 103; two filter components 107 are located at the two sides of the switching channel 103, and the filter component 107 comprises a filter channel 108, a connecting channel 109, a control valve 110 and a filter screen 111; the filter channel 108 is arranged at the side of the switching channel 103, the connecting channel 109 is arranged between the filter channel 108 and the switching channel 103; the control valve 110 and the connecting channel 109 are fixedly connected, and located at the side of the connecting channel 109; and the filter screen 111 is arranged inside the filter channel 108.When the water injection pump 101 is connected with an external water source, the water injection pump 101 pumps water into the water delivery pipe 102, and the water flows into the left end of the switching channel 103 through the water delivery pipe 102, and the water is blocked by the water stop plate 106 and enters one of the filter channels 108, and the filter screen 111 in the filter channel 108 filters impurities in the water, and the filtered water flows back to the right end of the switching channel 103 through the connecting channel 109, and finally is injected into the oil layer of the oil and gas field through the water injection pipe 104; when the filter screen 111 on one of the filter parts 107 is blocked, the worker first controls the control valve 110 on the filter part 107 to be closed, and at the same time, the worker rotates the water stop plate 106 by holding the knob 105, so that the water stop plate 106 is turned over and the two ends of the water stop plate 106 are respectively abutted against the inner walls of the two filter channels 108, so that the other filter channel 108 is communicated with the switching channel 103, and the water flows into the filter channel 108 of the other unblocked filter screen 111, and the water enters the right end of the switching channel 103 through the filter channel 108 and the connecting channel 109, and finally is injected into the oil layer of the oil and gas field through the water injection pipe 104, and then the worker can disassemble the blocked filter screen 111 for cleaning; as an optimization, a rubber sealing gasket (not shown in the figure) can be arranged on the outer edge of the water stop plate 106 to prevent water leakage; the utility model can disassemble and clean the blocked filter screen 111 without stopping the machine, so that the water injection work of the oil and gas field can be continuously carried out, the water injection efficiency is improved, and the problem that the existing digital water injection device for oil and gas field development needs to be stopped and the filter screen 111 needs to be disassembled and cleaned when the filter screen 111 is blocked, so that the water injection work of the oil and gas field cannot be continuously carried out, thereby reducing the water injection efficiency.

[0024] The locking bolt 112 is threadedly connected with the knob 105 and penetrates through the knob 105; the two screw hole seats 113 are fixedly connected with the switching channel 103 and are respectively located at the side edges of the switching channel 103. The screw hole seat 113 is internally provided with a screw hole matched with the locking bolt 112, after the position of the water stop plate 106 is adjusted by rotating the knob 105, the locking bolt 112 is screwed into the knob 105 and then screwed into the screw hole seat 113, so as to fix the positions of the knob 105 and the water stop plate 106, and the positions of the two screw hole seats 113 correspond to the positions of the locking bolt 112 after the switching position of the water stop plate 106, so that the worker can also know whether the water stop plate 106 is turned over in place by observing whether the screw hole seat 113 is completely aligned with the locking bolt 112.

[0025] Secondly, the channel shell 114 is fixedly connected with the switching channel 103 and the connecting channel 109, and is located between the switching channel 103 and the connecting channel 109; a plurality of the supporting blocks 115 are fixedly connected with the channel shell 114 respectively and are located inside the channel shell 114 respectively; the sealing member 116 is arranged at the side of the channel shell 114. Water at the left end of the switching channel 103 can enter the connecting channel 109 through the channel shell 114, and the supporting blocks 115 are used for supporting the filter screen 111, and the channel shell 114 can be closed through the sealing member 116.

[0026] Meanwhile, the sealing plate 117 is located at the side of the channel shell 114; a plurality of the connecting bolts 118 are threadedly connected with the sealing plate 117 respectively and are threadedly connected with the channel shell 114 respectively and are located at the side of the sealing plate 117 respectively. The connecting bolts 118 are tightened on the sealing plate 117 and the channel shell 114, so that the sealing plate 117 can be mounted on the channel shell 114; as preferred, a rubber sealing ring (not shown in the figure) can be arranged at the contact position of the sealing plate 117 and the channel shell 114, so that water leakage can be prevented.

[0027] In addition, the hook 119 is fixedly connected with the sealing plate 117 and is located at the side of the sealing plate 117; the hanging ring 120 is fixedly connected with the filter screen 111 and is located at the side of the filter screen 111. The hook 119 is in the shape of “L”, when the filter screen 111 is disassembled, the connecting bolts 118 are unscrewed from the sealing plate 117 and the channel shell 114, then the sealing plate 117 is taken off from the channel shell 114, the sealing plate 117 pulls out the filter screen 111 from the channel shell 114 through the hook 119 and the hanging ring 120, then the hanging ring 120 is taken off from the hook 119, so that the filter screen 111 can be cleaned or replaced; after the filter screen 111 is cleaned, the hook 119 is hooked on the hanging ring 120, then the filter screen 111 is put into the channel shell 114, until the filter screen 111 falls on the supporting blocks 115, at this time, the sealing plate 117 also tightly contacts with the surface of the channel shell 114, then the connecting bolts 118 are screwed on the sealing plate 117 and the channel shell 114; in the above manner, the filter screen 111 can be disassembled, so that the filter screen 111 can be cleaned.

[0028] When the oil and gas field is water injected by using the utility model, the water pump 101 is communicated with external water source, the water pump 101 pumps water into the water delivery pipe 102, water flows through the water delivery pipe 102 and enters the left end of the switching channel 103, water is blocked by the water stop plate 106 and enters one of the channel shells 114, the filter screen 111 in the channel shell 114 filters the impurities in water, the filtered water flows back to the right end of the switching channel 103 through the connecting channel 109, and finally is injected into the oil layer of the oil and gas field from the water injection pipe 104; when the filter screen 111 on one of the filter parts 107 is blocked, the staff first controls the control valve 110 on the filter part 107 to close, and at the same time, the staff rotates the water stop plate 106 by holding the knob 105, so that the water stop plate 106 is turned over and the two ends of the water stop plate 106 are respectively abutted against the inner walls of the two channel shells 114, so that the other channel shell 114 is communicated with the switching channel 103, so that water flows into the channel shell 114 with the unblocked filter screen 111, and water enters the right end of the switching channel 103 through the channel shell 114 and the connecting channel 109, and finally is injected into the oil layer of the oil and gas field from the water injection pipe 104, and then the staff can disassemble the blocked filter screen 111 from the channel shell 114 for cleaning; the utility model can disassemble and clean the blocked filter screen 111 without stopping the machine after one of the filter screens 111 is blocked, so that the water injection work of the oil and gas field can be continuously carried out, the water injection efficiency is improved, and the problem that the existing digital water injection device for oil and gas field development needs to be stopped and the filter screen 111 is disassembled and cleaned after the filter screen 111 is blocked, so that the water injection work of the oil and gas field cannot be continuously carried out, and the water injection efficiency is reduced is solved.

[0029] The above only discloses one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A water injection device for oil and gas field development, comprising a water pumping device, characterized in that it further comprises a water injection assembly; the water injection assembly comprises a water delivery pipe, a switching channel, a water injection pipe, a knob, a water stop plate and two filter components; the water delivery pipe is fixedly connected with the water pumping device and communicates with the water pumping device, and is located at the side of the water pumping device; the switching channel is fixedly connected with the water delivery pipe and communicates with the water delivery pipe, and is located at the side of the water delivery pipe; the water injection pipe is fixedly connected with the switching channel and communicates with the switching channel, and is located at the end of the switching channel away from the water delivery pipe; the knob is rotationally connected with the switching channel and is located at the side of the switching channel; the water stop plate is fixedly connected with the knob and is located inside the switching channel; the two filter components are located at the two sides of the switching channel, and each filter component comprises a filter channel, a connecting channel, a control valve and a filter screen; the filter channel is arranged at the side of the switching channel, the connecting channel is arranged between the filter channel and the switching channel, and the control valve is fixedly connected with the connecting channel and is located at the side of the connecting channel; the filter screen is arranged inside the filter channel.

2. The water injection device for oil and gas field development according to claim 1, characterized in that the water injection assembly further comprises locking bolts and two screw hole seats; the locking bolts are threadedly connected with the knob and penetrate through the knob; and the two screw hole seats are fixedly connected with the switching channel and are respectively located at the sides of the switching channel.

3. The water injection device for oil and gas field development according to claim 2, characterized in that the filter channel comprises a channel shell, a plurality of supporting blocks and a sealing member; the channel shell is fixedly connected with the switching channel and is fixedly connected with the connecting channel, and is located between the switching channel and the connecting channel; the plurality of supporting blocks are fixedly connected with the channel shell and are respectively located inside the channel shell; and the sealing member is arranged at the side of the channel shell.

4. The water injection device for oil and gas field development according to claim 3, characterized in that the sealing member comprises a sealing plate and a plurality of connecting bolts; the sealing plate is located at the side of the channel shell; and the plurality of connecting bolts are threadedly connected with the sealing plate and are threadedly connected with the channel shell, and are respectively located at the sides of the sealing plate.

5. The water injection device for oil and gas field development according to claim 4, characterized in that the sealing member further comprises a hook and a hanging ring; the hook is fixedly connected with the sealing plate and is located at the side of the sealing plate; and the hanging ring is fixedly connected with the filter screen and is located at the side of the filter screen. ​ ​ ​ ​ ​

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