CN214366578U - Pressure drive water injection sledge - Google Patents

Abstract

The utility model provides a press and drive water injection sledge, including the sledge body and all set up in suction pump, filter assembly, high-pressure water injection subassembly and the subassembly that divides on the sledge body, the end of intaking of suction pump is suitable for and communicates with the water source, the play water end of the subassembly that divides is suitable for and single well pipeline intercommunication, high-pressure water injection subassembly includes the fracturing pump, the end of intaking of fracturing pump in proper order with filter assembly with the suction pump intercommunication, the play water end of fracturing pump with divide the subassembly intercommunication. The utility model discloses in, end and water source intercommunication intake at the suction pump, after water diversion assembly and single well pipeline intercommunication, the suction pump draws water from the water source, and rivers filter the back via filter assembly, flow direction water diversion assembly after through the fracturing pump pressure boost, finally pour into the single well pipeline into, because the existence of fracturing pump, can realize high-pressure water injection, can carry out the moisturizing to the temporary of long-term short notes well and increase notes, effectively ensure formation pressure.

Description

Pressure drive water injection sledge

Technical Field

The utility model relates to a water injection equipment technical field particularly, relates to a press and drive water injection sledge.

Background

With the increase of the exploitation time of the oil field, the energy of the oil layer is continuously consumed, so that the pressure of the oil layer is continuously reduced, underground crude oil is greatly degassed, the viscosity is increased, and the yield of the oil well is greatly reduced. In order to compensate for the underground deficit caused by the production of crude oil and to maintain or increase the reservoir pressure, it is necessary to inject water to the oil field to remove impurities. However, the existing water injection station cannot guarantee the formation pressure due to the fact that the oil well is short of injection for a long time in low-permeability, deep and sensitive reservoirs due to insufficient dry pressure of water injection.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be how to the effective water injection of insufficient injection well in order to ensure formation pressure.

In order to solve the problem, the utility model provides a pressure drive water injection sledge, including the sledge body and all set up in suction pump, filter assembly, high pressure water injection subassembly and the subassembly that divides on the sledge body, the end of intaking of suction pump is suitable for and communicates with the water source, the play water end of the subassembly that divides is suitable for and single well pipeline intercommunication, high pressure water injection subassembly includes the fracturing pump, the end of intaking of fracturing pump in proper order with filter assembly with the suction pump intercommunication, the play water end of fracturing pump with divide the subassembly intercommunication.

Optionally, the filtering assembly includes a plurality of filters connected in parallel, and a plurality of water inlet ends of the filters are respectively communicated with a water outlet end of the water pump, and a plurality of water outlet ends of the filters are respectively communicated with a water inlet end of the fracturing pump.

Optionally, the high-pressure water injection assembly further comprises a motor, the motor is in driving connection with the fracturing pump, and the motor is suitable for driving the fracturing pump to supply liquid to the water diversion assembly.

Optionally, the fracturing pump has a feed pressure greater than or equal to 70 megapascals.

Optionally, the water diversion assembly comprises a main water diversion pipe and a plurality of branch water diversion pipes arranged in parallel, the water inlet end of the main water diversion pipe is communicated with the water outlet end of the fracturing pump, the water outlet end of the main water diversion pipe is respectively communicated with the water inlet ends of the plurality of branch water diversion pipes, the water outlet end of each branch water diversion pipe is provided with a pipe joint, and each branch water diversion pipe is suitable for being communicated with the single well pipeline through the pipe joint.

Optionally, the pressure-drive water injection sledge further comprises an electrical control device, wherein the electrical control device is arranged on the sledge body and is electrically connected with the water suction pump, the high-pressure water injection assembly and the water distribution assembly respectively.

Optionally, the branch water pipe is provided with a first electric control stop valve, a first digital transmission pressure gauge, a digital transmission flow meter and an electric control flow regulation needle valve on the pipeline, and the electric control device is respectively electrically connected with the first electric control stop valve, the first digital transmission pressure gauge, the digital transmission flow meter and the electric control flow regulation needle valve.

Optionally, a second electronic control stop valve is arranged on a pipeline of the main water distribution pipe, and the electric control device is electrically connected with the second electronic control stop valve.

Optionally, the pressure flooding water injection sledge further comprises a wireless communication device, the wireless communication device is electrically connected with the electrical control device, and the electrical control device is suitable for being in communication connection with a monitoring room through the wireless communication device.

Optionally, the sled body is frame-type, box-type or base-type.

Compared with the prior art, the beneficial effects of the utility model are that: the high-pressure water injection subassembly includes the fracturing pump, the end of intaking of fracturing pump communicates with filter assembly and suction pump in proper order, the play water end and the subassembly intercommunication that divides of fracturing pump, intake end and water source intercommunication at the suction pump, divide behind subassembly and the individual well pipeline intercommunication, the suction pump draws water from the water source, rivers filter the back via filter assembly, flow direction branch water subassembly after through the fracturing pump pressure boost, finally pour into the individual well pipeline, because the existence of fracturing pump, can realize high-pressure water injection, can temporarily carry out the moisturizing and increase notes to long-term short notes well, effectively ensure formation pressure.

Simultaneously, suction pump, filtering component, high-pressure water injection subassembly and divide the subassembly to all set up on the sledge body, wholly be skid-mounted, it can realize the batch production prefabrication, makes things convenient for car hauling and hoist and mount installation to quick installation is put into operation and water injection development, has that on-the-spot adaptability is good, construction cycle is short and reuse's advantage.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the medium-pressure flooding water injection skid of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the water diversion module of the present invention;

fig. 3 is a schematic structural diagram of an embodiment of the middle filter assembly of the present invention.

Description of reference numerals:

1. a sled body; 2. a water pump; 3. a filter assembly; 31. a filter; 4. a high pressure water injection assembly; 41. a fracturing pump; 42. an electric motor; 5. a water diversion assembly; 51. a main water distributing pipe; 511. a second electrically controlled stop valve; 52. branch water distribution pipes; 521. a first electrically controlled stop valve; 522. a first digital transmission pressure gauge; 523. a digital transmission flow meter; 524. an electrically controlled flow regulating needle valve; 525. a pipe joint; 6. an electrical control device; 7. a wireless communication device; 8. a second digital transmitting pressure gauge; 9. a third digital transmitting pressure gauge; 10. and a third electrically controlled stop valve.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

It should be noted that the term "connect" in this embodiment includes a detachable connection and a non-detachable connection, that is, the term "connect" in this embodiment may be a detachable connection or a non-detachable connection, and the non-detachable connection may also be referred to as a fixed connection; however, if the connection is not explicitly indicated as detachable connection or non-detachable connection in this embodiment, the detachable connection and the non-detachable connection are considered to be applicable, and the specific use of the detachable connection or the non-detachable connection may be determined according to specific implementation conditions of a specific implementation process, so that the "connection" will not be correspondingly explained in the following of this embodiment.

In addition, the "setting" mentioned in the present embodiment includes the case of mounting, fixing, and connecting, that is, the "setting" mentioned in the present embodiment may be at least one of mounting, fixing, and connecting, and therefore, the "setting" will not be explained accordingly in the following of the present embodiment.

Referring to fig. 1, the embodiment of the utility model provides a pressure drive water injection sledge, including the sledge body 1 and all set up in suction pump 2, filter component 3, high pressure water injection subassembly 4 and the subassembly 5 that divides on the sledge body 1, the end of intaking of suction pump 2 is suitable for with the water source intercommunication, the play water end of the subassembly 5 that divides is suitable for and single well pipeline intercommunication, high pressure water injection subassembly 4 includes fracturing pump 41, fracturing pump 41 intake end in proper order with filter component 3 with suction pump 2 intercommunication, fracturing pump 41's play water end with the subassembly 5 intercommunication that divides.

In this embodiment, the single well pipeline is the pipeline that lets in the oil well, after the pressure drive water injection sledge of this embodiment is adopted, high pressure water injection subassembly 4 includes fracturing pump 41, fracturing pump 41's the end of intaking communicates with filter assembly 3 and suction pump 2 in proper order, fracturing pump 41's the end of intaking communicates with water diversion assembly 5, intake end and water source intercommunication at suction pump 2, after water diversion assembly 5 communicates with the single well pipeline, suction pump 2 draws water from the water source, rivers flow to water diversion assembly 5 after filtering by filter assembly 3, flow direction water diversion assembly 5 after the pressure boost through fracturing pump 41, finally pour into the single well pipeline into, because fracturing pump 41's existence, can realize high-pressure water injection, can carry out the moisturizing and increase the notes to the temporary moisturizing of long-term short notes well, effectively guarantee stratum pressure.

In this embodiment, the skid body 1 is a frame type, a box type or a base type, as shown in fig. 1, the skid body 1 is a frame type, a water pump 2, a filter assembly 3, a high-pressure water injection assembly 4 and a water distribution assembly 5 are arranged at the lower end inside the skid body 1, the distribution mode is not particularly limited, and according to the actual situation, in one embodiment, the water pump 2, the filter assembly 3, the high-pressure water injection assembly 4 and the water distribution assembly 5 are sequentially arranged along the length direction of the skid body 1; in other embodiments, the water pump 2 and the filter assembly 3 are disposed on one side of the skid body 1, and the high-pressure water injection assembly 4 and the water distribution assembly 5 are disposed on the opposite side of the skid body 1.

In this embodiment, suction pump 2, filtering component 3, high pressure water injection subassembly 4 and divide subassembly 5 to install on sledge body 1 through the bolt dismantlement formula, and the water injection sled is whole to be skid-mounted, and it can realize the batch production prefabrication, makes things convenient for car transport and hoist and mount installation to quick installation is put into operation and water injection development, has that on-the-spot adaptability is good, construction cycle is short and reuse's advantage.

In this embodiment, the fracturing pump 41 is an N-cylinder plunger pump, where N is an odd number greater than or equal to 3, and the liquid supply pressure of the fracturing pump 41 is greater than or equal to 70 mpa, so that when the fracturing pump 41 works, the filtered water can be pressurized and conveyed to the water diversion assembly 5.

Optionally, the filtering assembly 3 includes a plurality of filters 31 disposed in parallel, and a plurality of water inlet ends of the filters 31 are respectively communicated with the water outlet end of the water pump 2, and a plurality of water outlet ends of the filters 31 are respectively communicated with the water inlet end of the fracturing pump 41.

In this embodiment, the number of the filters 31 is plural, and may be one, two, or three, and according to the actual situation, as shown in fig. 3, the number of the filters 31 is three, the three filters 31 are arranged in parallel, the water inlet end of each filter 31 is respectively communicated with the water outlet end of the water suction pump 2, and the water outlet end of each filter 31 is respectively communicated with the water inlet end of the fracturing pump 41.

So set up, thereby the water that suction pump 2 carried filters through filter 31 and gets rid of aquatic impurity, avoids damaging fracturing pump 41 and pollutes the oil reservoir. Meanwhile, the number of the filters 31 is multiple, and after one of the filters 31 is damaged or blocked, the other filters 31 can still work normally, so that the water flow cannot be effectively filtered.

In this embodiment, be equipped with second digital transmission manometer 8 on the pipeline between suction pump 2 and the filter component 3, second digital transmission manometer 8 real-time detection suction pump 2 and the filter component 3 between the pressure on the pipeline, after filter 31 when filter component 3 uses a period, because the reason of impurity, the pressure of the pipeline between suction pump 2 and the filter component 3 can rise gradually, after it is higher than the default, filter 31's filter effect is basically lost, can't satisfy the filtration requirement, therefore, the state of filter 31 can be known through the reading of second digital transmission manometer 8, thereby be convenient for the change of filter 31.

Alternatively, a water quality sensor is provided at the outlet end of each filter module 3, and the water quality sensor detects the water quality of the filtered water flow of the filter 31 to determine whether the filter 31 needs to be replaced.

In this embodiment, each of the filters 31 may have a stop valve at the water inlet end and the water outlet end, so that the water path of the corresponding filter 31 can be closed by the stop valves at the water inlet end and the water outlet end of the filter 31, so as to replace the corresponding filter 31 without affecting the operation of other filters 31.

Optionally, the high-pressure water injection assembly 4 further comprises a motor 42, the motor 42 is in driving connection with the fracturing pump 41, and the motor 42 is suitable for driving the fracturing pump 41 to supply liquid to the water diversion assembly 5.

In this embodiment, the motor 42 is disposed on the fracturing pump 41 or the sled body 1, and as shown in fig. 1, the motor 42 is disposed on the sled body 1, and is drivingly connected to the input end of the fracturing pump 41 through a belt, and when the motor 42 rotates, the motor drives the rotating shaft of the fracturing pump to operate through the belt, so as to boost the water flow.

Optionally, the water diversion assembly 5 includes a main water diversion pipe 51 and a plurality of branch water diversion pipes 52 arranged in parallel, a water inlet end of the main water diversion pipe 51 is communicated with a water outlet end of the fracturing pump 41, a water outlet end of the main water diversion pipe 51 is respectively communicated with a water inlet end of the plurality of branch water diversion pipes 52, a water outlet end of each branch water diversion pipe 52 is provided with a pipe joint 525, and the branch water diversion pipes 52 are adapted to be communicated with the single well pipeline through the pipe joints 525.

Referring to fig. 2, the water diversion assembly 5 includes a main water diversion pipe 51 and a plurality of branch water diversion pipes 52 arranged in parallel, wherein the main water diversion pipe 51 and the branch water diversion pipes 52 are made of plastic pipes or steel pipes, preferably, the main water diversion pipe 51 and the branch water diversion pipes 52 are both made of steel pipes, a water inlet end of the main water diversion pipe 51 is communicated with a water outlet end of the fracturing pump 41, the water outlet end of the main water diversion pipe 51 is respectively communicated with water inlet ends of the plurality of branch water diversion pipes 52, the water flow pressurized by the fracturing pump 41 firstly passes through the main water diversion pipe 51 and then is diverted to each branch water diversion pipe 52, and after the branch water diversion pipes 52 are communicated with a single well pipeline through a pipe joint 525, the pressurized water flow is injected into a well through the branch water diversion pipes 52.

Optionally, the pressure-drive water injection skid further comprises an electrical control device 6, wherein the electrical control device 6 is arranged on the skid body 1, and the electrical control device 6 is electrically connected with the water suction pump 2, the high-pressure water injection assembly 4 and the water distribution assembly 5 respectively.

In this embodiment, electrical apparatus controlling means includes the PLC switch board, and it passes through the bolt and installs on sledge body 1, the PLC switch board respectively with suction pump 2, the motor 42 of high pressure water injection subassembly 4 and divide various valve bodies and the instrument electricity in the water subassembly 5 to be connected, during operation, the PLC switch board is used for controlling opening and closing of suction pump 2 and motor 42, realizes drawing water and pressure boost, the PLC switch board still is used for monitoring the data of instrument in order to control the flow control of various valve bodies.

Optionally, a first electronic control stop valve 521, a first digital transmission pressure gauge 522, a digital transmission flow meter 523 and an electronic control flow regulation needle valve 524 are arranged on the pipeline of the branch water pipe 52, and the electrical control device 6 is electrically connected to the first electronic control stop valve 521, the first digital transmission pressure gauge 522, the digital transmission flow meter 523 and the electronic control flow regulation needle valve 524 respectively.

Referring to fig. 3, the branched water pipe 52 is sequentially provided with a first electronic control stop valve 521, a first digital transmission pressure gauge 522, a digital transmission flow meter 523 and an electronic control flow regulation needle valve 524 along the direction from the water inlet end to the water outlet end, because the first electronic control stop valve 521, the first digital transmission pressure gauge 522, the digital transmission flow meter 523 and the electronic control flow regulation needle valve 524 are electrically connected with the PLC control cabinet, the first digital transmission pressure gauge 522 and the digital transmission flow meter 523 can detect the pressure and the flow on the corresponding branched water pipe 52 in real time, the first electronic control stop valve 521 can open and close the corresponding branched water pipe 52, and the electronic control flow regulation needle valve 524 can regulate the flow of the corresponding branched water pipe 52.

Referring to fig. 2, four branch distribution pipes 52 are provided, when water needs to be supplied to two oil wells, the PLC control cabinet opens the first electrically controlled stop valve 521 corresponding to two branch distribution pipes 52, closes the first electrically controlled stop valves 521 of the other two branch distribution pipes 52, and when water is supplied to a single well pipe, and when the digital transmission flow meter 523 on one branch distribution pipe 52 displays that the flow rate is too large or too small, the PLC control cabinet controls the electrically controlled flow rate adjustment needle valve 524 to reduce or increase the flow rate.

So set up, the pressure and the flow that PLC switch board can acquire first digital transmission manometer 522 and digital transmission flowmeter 523 transmitted, and when pressure or flow were too big or too little, the PLC switch board still can carry out corresponding regulation and control according to first automatically controlled stop valve 521 and automatically controlled flow control needle valve 524, realized unmanned control.

Optionally, a second electrically controlled stop valve 511 is arranged on the pipeline of the main water distribution pipe 51, and the electric control device 6 is electrically connected with the second electrically controlled stop valve 511.

In this embodiment, since the branch distribution pipes 52 are provided with a plurality of branch distribution pipes 52, when water flow of all the branch distribution pipes 52 needs to be cut off, the first electrically controlled stop valves 521 on the branch distribution pipes 52 need to be closed one by one, which is time-consuming and inconvenient. After the second electrically controlled stop valve 511 is arranged on the pipeline of the main branch water pipe 51, the cut-off and the conduction of all the branch water pipes 52 can be realized through the second electrically controlled stop valve 511.

Optionally, the pressure flooding water injection skid further comprises a wireless communication device 7, the wireless communication device 7 is electrically connected with the electrical control device 6, and the electrical control device 6 is adapted to be in communication connection with a monitoring room through the wireless communication device 7.

In this embodiment, the wireless communication device 7 is an antenna, and is installed on the sled body 1 or the PLC control cabinet, as shown in fig. 1, the antenna is installed on the upper beam of the sled body 1, and the instrument data and the sensor data received by the PLC control cabinet are both transmitted to the monitoring room through the antenna, so as to implement remote unattended monitoring, and at the same time, the antenna also receives a command instruction sent by an operator to implement a corresponding operation, such as blocking a flow path or regulating and controlling a flow rate.

Optionally, a third digital transmission pressure gauge 9 and a third electronic control stop valve 10 are arranged on a pipeline between the filter assembly 3 and the fracturing pump 41, and the PLC control cabinet is electrically connected with the third digital transmission pressure gauge 9 and the third electronic control stop valve 10 respectively, so that the third digital transmission pressure gauge 9 detects the water pressure before entering the fracturing pump 41 in real time, and the PLC control cabinet realizes the conduction or the cut-off of the water flow entering the fracturing pump 41 through the third electronic control stop valve 10.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims (10)

1. The utility model provides a pressure drive water injection sledge, its characterized in that, include the sledge body (1) and all set up in suction pump (2), filter component (3), high pressure water injection subassembly (4) and divide water subassembly (5) on the sledge body (1), the end of intaking of suction pump (2) is suitable for with the water source intercommunication, the play water end of dividing water subassembly (5) is suitable for and single well pipeline intercommunication, high pressure water injection subassembly (4) are including fracturing pump (41), the end of intaking of fracturing pump (41) in proper order with filter component (3) with suction pump (2) intercommunication, the play water end of fracturing pump (41) with divide water subassembly (5) intercommunication.

2. The pressure flooding skid of claim 1, wherein the filtering assembly (3) comprises a plurality of filters (31) arranged in parallel, and water inlet ends of the plurality of filters (31) are respectively communicated with a water outlet end of the water pump (2), and water outlet ends of the plurality of filters (31) are respectively communicated with a water inlet end of the fracturing pump (41).

3. The pressure drive water injection skid according to claim 1, wherein the high pressure water injection assembly (4) further comprises an electric motor (42), the electric motor (42) is in driving connection with the fracturing pump (41), the electric motor (42) is adapted to drive the fracturing pump (41) to supply liquid to the water diversion assembly (5).

4. The pressure flooding skid of claim 1 or 3, wherein a feed pressure of the fracturing pump (41) is greater than or equal to 70 megapascals.

5. The pressure drive water injection skid according to claim 1, wherein the water diversion assembly (5) comprises a main water diversion pipe (51) and a plurality of branch water diversion pipes (52) arranged in parallel, the water inlet ends of the main water diversion pipes (51) are communicated with the water outlet ends of the fracturing pumps (41), the water outlet ends of the main water diversion pipes (51) are respectively communicated with the water inlet ends of the plurality of branch water diversion pipes (52), the water outlet ends of the branch water diversion pipes (52) are provided with pipe joints (525), and the branch water diversion pipes (52) are suitable for being communicated with the single well pipeline through the pipe joints (525).

6. The pressure-drive water injection skid according to claim 5, further comprising an electrical control device (6), wherein the electrical control device (6) is disposed on the skid body (1), and the electrical control device (6) is electrically connected to the water pump (2), the high-pressure water injection assembly (4) and the water distribution assembly (5), respectively.

7. The pressure drive water injection skid according to claim 6, wherein a first electric control stop valve (521), a first digital transmission pressure gauge (522), a digital transmission flow meter (523) and an electric control flow regulation needle valve (524) are arranged on the pipeline of the branch water pipe (52), and the electric control device (6) is electrically connected with the first electric control stop valve (521), the first digital transmission pressure gauge (522), the digital transmission flow meter (523) and the electric control flow regulation needle valve (524) respectively.

8. The pressure drive water injection skid according to claim 6 or 7, wherein a second electrically controlled stop valve (511) is arranged on the pipeline of the main water distribution pipe (51), and the electric control device (6) is electrically connected with the second electrically controlled stop valve (511).

9. A pressure drive water skid according to claim 6, further comprising a wireless communication device (7), said wireless communication device (7) being electrically connected with said electrical control device (6), said electrical control device (6) being adapted to be in communication connection with a monitoring room through said wireless communication device (7).

10. Pressure drive water injection skid according to claim 1, characterized in that the skid body (1) is frame-like, box-like or base-like.

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