CN214944200U - Oil well injection-production metering integrated device - Google Patents
Oil well injection-production metering integrated device Download PDFInfo
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- CN214944200U CN214944200U CN202120102430.XU CN202120102430U CN214944200U CN 214944200 U CN214944200 U CN 214944200U CN 202120102430 U CN202120102430 U CN 202120102430U CN 214944200 U CN214944200 U CN 214944200U
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Abstract
The utility model provides an oil well is annotated and is adopted measurement integrated device, adopt unit and measurement unit including annotating. The injection-production unit comprises: a plurality of liquid conveying pipelines respectively and correspondingly connected with the plurality of oil wells, and a plurality of water injection pipelines connected with a water source through low-pressure water pipes; and the water injection multi-way distribution valve is used for controlling the connection and disconnection between any water injection pipeline and the low-pressure water pipe. The metering unit includes: an automatic well selection valve in communication with the plurality of infusion lines; and a production separator and a metering separator connected with the automatic well selection valve, wherein the automatic well selection valve is configured to selectively communicate any one of the liquid conveying pipelines to the metering separator and communicate the rest of the liquid conveying pipelines to the production separator. The water injection multi-way distribution valve and the automatic well selection valve are integrated on one prying block, so that the injection production unit and the metering unit form an integrated structure.
Description
Technical Field
The utility model relates to an oil well is annotated and is adopted field, concretely relates to oil well is annotated and is adopted measurement integrated device.
Background
During the production of an oil field, it is often necessary to flood a producing well due to changes in formation energy or development plans. Therefore, the ground production facility needs to meet the water injection requirement caused by the conversion of oil wells into water injection wells at different production stages in addition to the requirement of the station entering measurement of the liquid and gas production of the single well under normal conditions. Based on the requirement, in order to ensure the normal operation of production, engineering personnel need to build a water injection system for a single well.
Currently, the single-well water injection system of the oil field production well is independently arranged, which results in the repeated construction of the pipelines of the single-well water injection system and the oil production metering system. For large-scale oil fields, the independent configuration mode needs to be matched with a large number of single-well water injection pipelines, the investment cost is very high, the investment is large, and the centralized management is inconvenient.
The existing research is to improve the wellhead device and the underground pipe column of a single oil well so as to realize water injection and oil extraction integration, and the integrated design of oil extraction metering and water injection is not carried out, so that the device is simplified and the cost is saved. Therefore, for a plurality of independent oil wells, an integrated oil production metering and water injection device needs to be designed.
SUMMERY OF THE UTILITY MODEL
To the technical problem as above, the utility model aims at providing an oil well is annotated and is adopted measurement integrated device. The device can concentrate oil recovery metering device and water injection device on a sled piece, avoids the repeated construction of water injection pipeline and oil production pipeline to reach the purpose of simplifying equipment and saving equipment construction cost.
According to the utility model discloses an oil well is annotated and is adopted measurement integrated device, adopt unit and measurement unit including annotating. The injection-production unit comprises: a plurality of liquid conveying pipelines respectively and correspondingly connected with the plurality of oil wells, and a plurality of water injection pipelines connected with a water source through low-pressure water pipes; and the water injection multi-way distribution valve is used for controlling the connection and disconnection between any water injection pipeline and the low-pressure water pipe. The metering unit includes: an automatic well selection valve in communication with the plurality of infusion lines; and a production separator and a metering separator connected with the automatic well selection valve, wherein the automatic well selection valve is configured to selectively communicate any one of the liquid conveying pipelines to the metering separator and communicate the rest of the liquid conveying pipelines to the production separator.
The water injection multi-way distribution valve and the automatic well selection valve are integrated on one prying block, so that the injection production unit and the metering unit form an integrated structure.
In a preferred embodiment, the water injection lines are connected to the infusion lines of the respective wells, respectively, such that the water injection line and the infusion line of the same well form an integrated line.
In a preferred embodiment, the metering unit further comprises a liquid metering system connected to the lower end of the metering separator and a gas metering system connected to the upper end of the metering separator.
In a preferred embodiment, the injection and production unit further comprises a buffer tank arranged between the low-pressure water pipe and the water injection pipeline, and the water injection multi-way distribution valve is arranged on the buffer tank.
In a preferred embodiment, a check valve is provided on each water injection line.
In a preferred embodiment, a flow control valve is provided on each water injection line.
In a preferred embodiment, the flow control valve is an angled orifice plate regulator valve.
In a preferred embodiment, the valve core of the flow control valve is made of hard alloy.
In a preferred embodiment, the automatic well selection valve is an electric multi-way valve.
Drawings
The present invention will be described with reference to the accompanying drawings.
Fig. 1 schematically shows a schematic diagram of an oil well injection-production metering integrated device according to an embodiment of the present invention.
In the present application, all the figures are schematic and are only intended to illustrate the principles of the present invention and are not drawn to scale.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
Fig. 1 shows an oil well injection-production metering integrated device 100 according to the present invention. As shown in fig. 1, the oil well injection, production and metering integrated device 100 includes an injection and production unit 10. The injection and production unit 10 comprises a plurality of infusion lines 20, each individual infusion line 20 is communicated with a separate production well (not shown), and a control valve 25 is arranged on each infusion line 20 to control the on-off of the infusion line 20. Meanwhile, the injection-production unit 10 further includes a plurality of water injection lines 30. The water injection line 30 is also connected at a first end to a separate production well and at a second end to a water source (not shown) via a low pressure water pipe 12, the water injection line 30 being used for injecting water downhole during oilfield injection operations. In addition, the injection and production unit 10 further comprises a water injection multi-way distribution valve 14, and the water injection multi-way distribution valve 14 can control the connection and disconnection between any one water injection pipeline 30 and the low-pressure water pipe 12, so that water injection operation can be performed on any one or more oil wells.
In a preferred embodiment, each of the water injection lines 30 is connected to the infusion line 20 of the same well, so that the water injection line 30 and the infusion line 20 of the same well form an integrated line, and the integrated arrangement is realized. Therefore, on one hand, the repeated construction of the water injection pipeline 30 and the infusion pipeline 20 can be avoided, the cost is saved, and on the other hand, the equipment is simplified and the management is convenient. In the process of producing petroleum, the oil extraction operation and the water injection operation of the oil well cannot be carried out simultaneously, so the integrated arrangement can not cause the conflict between the oil extraction operation and the water injection operation.
As shown in fig. 1, in a preferred embodiment, a buffer tank 15 is further disposed between the water injection line 30 and the low pressure water pipe 12, and the buffer tank 15 is respectively communicated with the water injection line 30 and the low pressure water pipe 12. The water injection multi-way distribution valve 14 is arranged on a buffer tank 15. Thus, during the water filling operation, the water in the low pressure water pipe 12 first enters the buffer tank 15 and then enters the predetermined water filling line 30 under the control of the water filling multi-way distribution valve 14. The buffer tank 15 can stabilize the pressure fluctuation of the water injected into the low-pressure water pipe 12, provide stable water flow and increase the stability of the whole water injection process.
Meanwhile, a flow control valve 35 is provided to each of the independent water injection lines 30, respectively. The flow control valve 35 is used to regulate the amount of flow in the water injection line 30. In a preferred embodiment, the flow control valve 35 is an angled orifice throttle, the change in the throttle opening being directly proportional to the stroke of its closure member and therefore well suited to flow regulation. In addition, the valve core of the throttle valve is made of hard alloy, so that the throttle valve has good flushing resistance, and the service life of the flow control valve 35 can be effectively prolonged.
In a preferred embodiment, after the water injection line 30 and the infusion line 20 are formed as an integrated line, a check valve 38 is further provided on each water injection line 30 in order to prevent the flow control valve 35 from being damaged or leaking during the oil recovery operation, thereby causing the oil recovery fluid in the well to flow back to the water injection line 30. The check valve 38 is selectively passable to allow only positive flow of fluid from the water injection line 30 into the infusion line 20.
As shown in fig. 1, the oil well injection-production metering integrated device 100 includes a metering unit 40. The metering unit 40 includes an automatic well selection valve 45 in communication with the infusion line 20. The automatic well selection valve 45 has a first outlet connected to a production separator (not shown) and a second outlet connected to a metering separator 50. The automatic well selection valve 45 is an electric multi-way valve, and can play a role in automatic allocation by adopting a special electric adjusting mode. I.e., the automatic well selection valve 45 can selectively communicate any one of the infusion lines 20 with the metering separator 50 and the remaining infusion lines 20 to the production separator. Thus, the autoselect valve 45 may perform a separation function to separate any particular infusion line 20 from the others and connect to and separate from the metering separator 50. Such automatic well selection valves 45 and metering separators 50 are well known to those skilled in the art, and a detailed description thereof will be omitted herein, as needed.
In a preferred embodiment, the automatic well selection valve 45 on the metering unit 40 and the water injection multi-way distribution valve 14 on the injection and production unit 10 are both arranged on the same skid, so that the structure of the device 100 is further simplified, the integration level is improved, and the equipment cost and the management cost are reduced.
As shown in fig. 1, a gas metering system 54 and a liquid metering system 52 are connected to the upper and lower ends of the metering separator 50, respectively. The liquid metering system 52 and the gas metering system are capable of metering the liquid and gas separated per unit time of a single infusion line 20, respectively, to obtain the production per unit time of a single infusion line 20, i.e., a single well. The metering technology is mature and various and can be set according to the specific situation of a user.
The following briefly describes the usage of the oil well injection-production metering integrated device 100 according to the present invention.
The utility model discloses an oil well is annotated and is adopted measurement integrated device 100 is through setting up water injection, oil recovery and measurement facility integration among the oil recovery facility, all sets up automatic well selection valve 45 and water injection multi-way distribution valve 14 wherein on same sled piece to construct same pipeline, the integration is arranged with water injection pipeline 30 and infusion line 20 on same oil well. Therefore, the structure of the equipment is simplified, the cost of the equipment is reduced on one hand, and the centralized management of the production equipment is facilitated on the other hand.
When the oil well is in oil production operation, the low-pressure water pipe 12 is in a closed state, and the control valve 25 on the liquid conveying pipeline 20 is in an open state. At this time, the produced fluid in the oil well can enter the production separator for separation through the infusion pipeline 20 and the automatic well selection valve 45 in sequence, and the check valve 38 on the water injection pipeline 30 can prevent the produced fluid from entering the water injection pipeline 30. In the process, if the yield of any oil well needs to be measured, only the automatic well selection valve 45 needs to be adjusted, the infusion pipeline 20 corresponding to the oil well is separated and communicated with the measuring separator 50, and the specific yield is measured through the liquid measuring system 52 and the gas measuring system 54.
In the oil recovery operation of the oil well, if the water injection operation is required for a specific oil well or wells, the control valve 25 of the corresponding liquid supply line 20 is first closed to stop the oil recovery operation. The low pressure water line 12 is then opened and water from the low pressure water line 12 is directed to the corresponding water injection line 30 by controlling the water injection manifold 14. Finally, the flow rate in the water injection line 30 is adjusted through a flow control valve 35 on the water injection line 30. And the water injection operation process of the specific oil well does not influence the oil extraction operation of other oil wells.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention in any way. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An oil well injection-production metering integrated device (100), comprising:
an injection and production unit (10) comprising: a plurality of liquid supply lines (20) respectively connected to the plurality of oil wells, and a plurality of water injection lines (30) connected to a water source through a low pressure water pipe (12); the water injection multi-way distribution valve (14) is used for controlling the connection and disconnection between any water injection pipeline and the low-pressure water pipe; and
a metering unit (40) comprising: an automatic well selection valve (45) in communication with the plurality of infusion lines; and a production separator and a metering separator (50) connected to the automatic well selection valve, wherein the automatic well selection valve is configured to selectively communicate any one of the infusion lines to the metering separator and the remaining infusion lines to the production separator;
the water injection multi-way distribution valve and the automatic well selection valve are integrated on one prying block, so that the injection production unit and the metering unit form an integrated structure.
2. The integrated device for injection, production and metering of an oil well according to claim 1, wherein the water injection pipelines are respectively connected to the liquid conveying pipelines of the corresponding oil wells, so that the water injection pipelines and the liquid conveying pipelines of the same oil well form an integrated pipeline.
3. An integrated oil well injection and production metering device according to claim 1 or 2, characterized in that the metering unit further comprises a liquid metering system (52) connected to the lower end of the metering separator and a gas metering system (54) connected to the upper end of the metering separator.
4. The oil well injection-production metering integrated device according to claim 1 or 2, wherein the injection-production unit further comprises a buffer tank (15) arranged between the low-pressure water pipe and a water injection pipeline, and the water injection multi-way distribution valve is arranged on the buffer tank.
5. An integrated oil well injection, production and metering device according to claim 4, characterized in that a check valve (38) is provided on each injection line.
6. An integrated oil well injection, production and metering device according to claim 5, characterized in that a flow control valve (35) is provided on each injection line.
7. The integrated well injection, production and metering device of claim 6, wherein the flow control valve is an angled orifice throttle valve.
8. The integrated device for injection, production and metering of an oil well as defined in claim 7, wherein the valve core of the flow control valve is made of hard alloy.
9. The integrated oil well injection, production and metering device of claim 1 or 2, wherein the automatic well selection valve is an electric multi-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102430.XU CN214944200U (en) | 2021-01-14 | 2021-01-14 | Oil well injection-production metering integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102430.XU CN214944200U (en) | 2021-01-14 | 2021-01-14 | Oil well injection-production metering integrated device |
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| Publication Number | Publication Date |
|---|---|
| CN214944200U true CN214944200U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120102430.XU Active CN214944200U (en) | 2021-01-14 | 2021-01-14 | Oil well injection-production metering integrated device |
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| CN (1) | CN214944200U (en) |
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2021
- 2021-01-14 CN CN202120102430.XU patent/CN214944200U/en active Active
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