CN220955543U - Constant-pressure water injection control device for oilfield water injection well manifold - Google Patents
Constant-pressure water injection control device for oilfield water injection well manifold Download PDFInfo
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- CN220955543U CN220955543U CN202322019542.0U CN202322019542U CN220955543U CN 220955543 U CN220955543 U CN 220955543U CN 202322019542 U CN202322019542 U CN 202322019542U CN 220955543 U CN220955543 U CN 220955543U
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- water injection
- pressure
- manifold
- plunger pump
- upper computer
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- 238000002347 injection Methods 0.000 title claims abstract description 114
- 239000007924 injection Substances 0.000 title claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000002332 oil field water Substances 0.000 title claims abstract description 15
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a constant-pressure water injection control device for an oilfield water injection well manifold, which belongs to the field of oilfield water injection and comprises a first water injection outlet and an upper computer, wherein the top of the first water injection outlet is fixedly communicated with a water injection manifold body, and the right side of the top of the water injection manifold body is fixedly communicated with a second water injection outlet; according to the utility model, the pressure transmitter is installed, 4GDTU is additionally installed, the pressure data acquired by the pressure transmitter in real time are transmitted to the upper computer of the water injection pump room in real time, the upper computer presets the normal working condition pressure data of the water injection manifold and the normal pressure data of each water injection outlet, the power output adjustment value of the plunger pump body is calculated according to the preset data and the pressure change data acquired in real time and is transmitted to the pressure transmitter, the pressure transmitter receives the power adjustment instruction of the plunger pump body sent by the upper computer, the frequency converter is controlled to increase or decrease the output power of the plunger pump body, and constant-pressure water injection is realized by adjusting the output power of the plunger pump through real-time pressure change.
Description
Technical Field
The utility model belongs to the field of oilfield water injection, and particularly relates to a constant-pressure water injection control device for a manifold of an oilfield water injection well.
Background
The oilfield water injection well manifold is one of key equipment used in oilfield water injection operation and is used for collecting water from different water sources or water treatment equipment and guiding the water to a water injection well for water injection operation, in the water injection process, if the injection allocation pressure of a certain well in the manifold is increased, the manifold pressure is too high, so that other water injection wells are caused to have too high manifold pressure, the injection allocation flow of a single well is increased, an over-injection phenomenon is generated, and if the injection allocation pressure of a certain well is reduced, the manifold pressure is caused to be insufficient, so that the single well under-injection of other water injection wells is caused to have insufficient manifold pressure, and therefore, the oilfield refined management also needs to regulate the water injection pressure in real time;
At present, plunger pumps are mainly used for oilfield water injection, a pressurizing station is added in a water injection pipeline with a longer manifold to ensure that the pressure of the water injection manifold is in a normal state, and because gas exists in the pipeline and is in a circulating state, the pressure in the pipeline can be influenced by the existence of the gas, so that the pressure value in the pipeline is difficult to maintain at a stable value, and the water injection efficiency is influenced.
In summary, the present utility model provides a constant pressure water injection control device for a manifold of an oilfield water injection well to solve the above problems.
Disclosure of utility model
In order to solve the technical problems, the utility model provides the following technical scheme:
The utility model provides an oil field water injection well manifold constant pressure water injection controlling means, includes annotates first water injection export and host computer, the fixed intercommunication in top of first water injection export has the water injection manifold body, the fixed intercommunication in right side at water injection manifold body top has the second water injection export, the fixed intercommunication in left side at water injection manifold body top has the third water injection export, the left end of water injection manifold body is provided with the plunger pump body, the top of plunger pump body is provided with the converter, the surface of first water injection export, second water injection export and third water injection export all is provided with pressure transmitter, pressure transmitter's surface is provided with the DTU, the top of converter is provided with the PLC controller.
Preferably, the output end of the pressure transmitter is electrically connected with the input end of the DTU, and the output end of the DTU is electrically connected with the input end of the upper computer.
Preferably, the output end of the upper computer is electrically connected with the input end of the PLC controller, the output end of the PLC controller is electrically connected with the input end of the frequency converter, and the output end of the frequency converter is electrically connected with the input end of the plunger pump body.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, the water injection manifold body, the first water injection outlet, the second water injection outlet and the third water injection outlet are used for conveying water so as to perform water injection operation on an oil field, the upper computer is used for presetting normal manifold pressure, the pressure value of each water injection outlet on the manifold and calculating a pressure attenuation coefficient, and calculating how to adjust the variable frequency value of the plunger pump body according to the received pressure data change of all water injection outlets on the real-time manifold.
2. The utility model is used for controlling the increase and decrease of the output power of the plunger pump body through the frequency converter, the pressure transmitter is used for collecting the real-time data of the pressure of the water injection manifold and the pressure change of each water injection outlet on the manifold, the DTU is used for collecting the real-time data of the pressure transmitter, converting the analog quantity into the digital quantity and transmitting the digital quantity to the upper computer through the Ethernet, and the PLC is used for executing the frequency conversion control sent by the upper computer.
3. According to the utility model, a pressure transmitter is arranged on each water injection outlet (comprising a water injection well mouth) on the water injection manifold, pressure data acquired by the pressure transmitter in real time is transmitted to an upper computer of a water injection pump room in real time by additionally arranging 4GDTU, the upper computer presets normal working condition pressure data of the water injection manifold and normal pressure data of each water injection outlet, the upper computer calculates a power output adjustment value of a plunger pump body according to the preset data and the pressure change data acquired in real time and transmits the power output adjustment value to the pressure transmitter, the pressure transmitter receives a power adjustment instruction of the plunger pump body sent by the upper computer, a frequency converter is controlled to increase or decrease the output power of the plunger pump body, and the whole device adjusts the output power of the plunger pump in real time through real-time pressure change, so that constant-pressure water injection is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a flow chart of the system of the present utility model.
In the figure:
1. A water injection manifold body; 2. a first water injection outlet; 3. a second water injection outlet; 4. a third water injection outlet; 5. an upper computer; 6. a plunger pump body; 7. a frequency converter; 8. a pressure transmitter; 9. a DTU; 10. and a PLC controller.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1-2, the utility model provides a constant pressure water injection control device for an oilfield water injection well manifold, which comprises a first water injection outlet 2 and an upper computer 5, wherein the top of the first water injection outlet 2 is fixedly communicated with a water injection manifold body 1, the right side of the top of the water injection manifold body 1 is fixedly communicated with a second water injection outlet 3, the left side of the top of the water injection manifold body 1 is fixedly communicated with a third water injection outlet 4, the left end of the water injection manifold body 1 is provided with a plunger pump body 6, the top of the plunger pump body 6 is provided with a frequency converter 7, the surfaces of the first water injection outlet 2, the second water injection outlet 3 and the third water injection outlet 4 are respectively provided with a pressure transmitter 8, the surface of the pressure transmitter 8 is provided with a DTU9, the top of the frequency converter 7 is provided with a PLC controller 10, the water injection manifold body 1, the first water injection outlet 2, the second water injection outlet 3 and the third water injection outlet 4, the system is used for conveying water so as to perform water injection operation on an oil field, the upper computer 5 is used for presetting normal manifold pressure, pressure values of each water injection outlet on the manifold and calculating pressure attenuation coefficients, calculating how to adjust variable frequency values of the plunger pump body 6 according to pressure data changes of all water injection outlets on a received real-time manifold, the frequency converter 7 is used for controlling the increase and decrease of output power of the plunger pump body 6, the pressure transmitter 8 is used for acquiring real-time data of the pressure of the water injection manifold and pressure changes of each water injection outlet on the manifold, the DTU9 is used for acquiring real-time data of the pressure transmitter 8 and converting analog quantities into digital quantities and transmitting the digital quantities to the upper computer 5 through the Ethernet, and the PLC 10 is used for executing variable frequency control sent by the upper computer 5.
As an embodiment of the present utility model, the output end of the pressure transmitter 8 is electrically connected to the input end of the DTU9, and the output end of the DTU9 is electrically connected to the input end of the host computer 5.
As an embodiment of the present utility model, the output end of the upper computer 5 is electrically connected to the input end of the PLC controller 10, the output end of the PLC controller 10 is electrically connected to the input end of the frequency converter 7, and the output end of the frequency converter 7 is electrically connected to the input end of the plunger pump body 6.
The specific working principle is as follows:
Each water injection outlet (comprising a water injection well mouth) on the water injection manifold is provided with a pressure transmitter 8, pressure data acquired by the pressure transmitter 8 in real time are transmitted to the upper computer 5 of the water injection pump room in real time through the additionally arranged 4GDTU, the upper computer 5 presets normal working condition pressure data of the water injection manifold and normal pressure data of each water injection outlet, the upper computer 5 calculates a power output adjustment value of the plunger pump body 6 according to preset data and pressure change data acquired in real time and sends the power output adjustment value to the pressure transmitter 8, the pressure transmitter 8 receives a power adjustment instruction of the plunger pump body 6 sent by the upper computer 5, the frequency converter 7 is controlled to increase or decrease the output power of the plunger pump body 6, and the whole device adjusts the output power of the plunger pump in real time through real-time pressure change, so that constant-pressure water injection is realized.
Claims (3)
1. The utility model provides an oil field water injection well manifold constant pressure water injection controlling means, includes annotates first water injection export (2) and host computer (5), its characterized in that: the utility model discloses a water injection manifold, including first water injection outlet (2), second water injection outlet (3), third water injection outlet (4), plunger pump body (6), frequency converter (7) are provided with at the top of plunger pump body (6), the surface of first water injection outlet (2), second water injection outlet (3) and third water injection outlet (4) all is provided with pressure transmitter (8), the surface of pressure transmitter (8) is provided with DTU (9), the top of frequency converter (7) is provided with PLC controller (10).
2. The oilfield water injection well manifold constant pressure water injection control device of claim 1, wherein: the output end of the pressure transmitter (8) is electrically connected with the input end of the DTU (9), and the output end of the DTU (9) is electrically connected with the input end of the upper computer (5).
3. The oilfield water injection well manifold constant pressure water injection control device of claim 1, wherein: the output end of the upper computer (5) is electrically connected with the input end of the PLC (10), the output end of the PLC (10) is electrically connected with the input end of the frequency converter (7), and the output end of the frequency converter (7) is electrically connected with the input end of the plunger pump body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322019542.0U CN220955543U (en) | 2023-07-28 | 2023-07-28 | Constant-pressure water injection control device for oilfield water injection well manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322019542.0U CN220955543U (en) | 2023-07-28 | 2023-07-28 | Constant-pressure water injection control device for oilfield water injection well manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220955543U true CN220955543U (en) | 2024-05-14 |
Family
ID=91005974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322019542.0U Active CN220955543U (en) | 2023-07-28 | 2023-07-28 | Constant-pressure water injection control device for oilfield water injection well manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220955543U (en) |
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2023
- 2023-07-28 CN CN202322019542.0U patent/CN220955543U/en active Active
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