CN211038615U - Single-well oil measurement and production measurement system between metering - Google Patents
Single-well oil measurement and production measurement system between metering Download PDFInfo
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- CN211038615U CN211038615U CN201921805999.1U CN201921805999U CN211038615U CN 211038615 U CN211038615 U CN 211038615U CN 201921805999 U CN201921805999 U CN 201921805999U CN 211038615 U CN211038615 U CN 211038615U
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Abstract
The utility model belongs to the technical field of recover oil, a single well volume oil production measurement system between measurement is disclosed, include: the separator comprises a separator body, a magnetic turning plate liquid level meter, a water path pipeline mechanism, an oil path pipeline mechanism and a valve operating device; the magnetic turning plate liquid level meter is arranged on the separator body; the waterway pipeline mechanism comprises a hot washing water pipeline, a watering water pipeline and a multi-way single-well watering pipeline; the oil circuit pipeline mechanism comprises a one-way separator pipeline, a one-way oil return junction and a plurality of single-well oil incoming pipelines; the valve operating device operates the valves and the gates on the pipelines to control the opening and closing or the adjustment of the valves and the gates. The utility model discloses simple structure, it is convenient to implement, has improved the speed of surveying production by survey oil, and the precision and the real-time of data have also all obtained the improvement.
Description
Technical Field
The utility model belongs to the technical field of oil recovery, a single well oil measuring and production measuring system between measurement (valves) is related to, specifically be an online measurement of magnetism turn over board level gauge (valves) interior quick single well oil measuring and production measuring system between.
Background
At present, in the production of petroleum, pipelines of a plurality of oil wells are usually converged into a metering (valve bank) room, and pipelines of a single (oil) well usually comprise an oil return (produced crude oil) pipeline and a water mixing pipeline, wherein the water mixing pipeline guides water mixing to a well mouth of the single well through a single well water mixing valve for the heat tracing of the crude oil gathering and transportation to prevent paraffin in the crude oil from being separated out, and the mixed oil returns to the metering (valve bank) room through an oil return pipe after being mixed with the single well oil return, is converged to the oil return manifold pipe and flows to a joint station; meanwhile, the water mixing pipeline can conduct high-pressure hot water which is subjected to hot washing by switching on the single-well hot washing valve to be led into the wellhead casing, so that single (annular) well hot washing operation is implemented.
Usually, the oil return pipelines and the water mixing pipelines of all oil wells are gathered together in a metering (valve group), the oil return pipelines are gathered to an oil return gathering pipe through a single-well oil return valve, the oil return pipelines are guided to a separator through an inlet valve of a single-well separator, wherein, one to three separators are usually arranged between the metering (valve group), the pipeline can independently guide the liquid outlet of each oil well in the metering (valve group) into the separator, the common oil inlet pipeline is also provided with a separator inlet valve which is used as a general conduction and cut-off valve of the pipeline leading to the separator, the oil outlet pipeline under the separator is connected to an oil return collecting pipe through a separator outlet valve, a liquid level meter is arranged on the separator, the oil extraction worker carries out the combined operation of the valves of the matching pipeline, by fixing the relationship between the liquid level height and the liquid level accumulation time, the liquid output of a single well, namely the so-called oil measurement and production measurement, can be calculated. The foregoing production measurement method is commonly referred to as positive displacement oil measurement.
The existing metering (valve bank) room is usually built for a long time, the pipelines and equipment in the metering (valve bank) room are usually analog meters and manually operated valves, because of its nature of operation, it is difficult to implement large-scale modifications to automated meters and automated actuators, the oil measurement and production in the metering (valve group) room can only be manually completed by an oil extraction worker, and meanwhile, in order to ensure the accuracy of oil measurement, the liquid level of the oil measurement usually needs to reach more than two thirds of the total amount of a separator liquid level meter, in the case of low single well output, it usually takes 40 minutes to several hours to reach the above level, during these waiting times, the oil extraction workers need to monitor the liquid level and time synchronously, the work content is boring and easy to make mistakes, meanwhile, due to subjective reasons, the metering time and the liquid level height precision have larger errors.
When multiple wells in the metering (valve bank) room need to be measured, the oil measurement and production measurement of only one well can be usually completed every day due to the limitation of low liquid output of a single well, the oil measurement and production measurement of all oil wells in the metering (valve bank) room usually needs about half a month, and the oil measurement and production measurement of each oil well is only once, so that the real-time performance of the oil (liquid) production data of the single well is poor, and the production system cannot be effectively supported by data.
Therefore, a means for measuring oil production quickly and automatically is needed.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
The utility model aims at: based on the actual situation that the oil measurement and production measurement can not be automatically completed in the prior art, the single-well oil measurement and production measurement system in the metering (valve group) room can automatically complete the oil measurement and production measurement.
(II) technical scheme
In order to solve the technical problem, the utility model provides an adopt each valve in the automatic operation measurement room of valve operating means, automatic system of flow is surveyed to the volume of carrying on the volume of oil, replace each valve of manual operation through valve operating means, cooperation magnetism turns over the board level gauge, the liquid level output signal that turns over board level gauge measurement with magnetism handles with measurement time simultaneously, the measurement that becomes more meticulous and the relation of record liquid level change and measurement time, the volume of going out of measuring the individual well that can be quick and accurate, thereby can realize that the volume of oil survey of many oil wells in single working day is produced between single measurement.
(III) advantageous effects
The single-well oil production measuring system provided by the technical scheme has the following advantages:
1. the oil and production measuring speed is improved, and the data precision and the real-time performance are improved from the original condition that only one well can be measured every day to the condition that each single well in the measuring room is measured once every day;
2. the measurement is automatically completed, the error of subjective measurement of an oil extraction worker is eliminated, and the accuracy of data is ensured; meanwhile, the measuring personnel are released from the boring work, so that the unattended operation of a measuring room is convenient to realize;
3. equipment facilities in the existing metering room are not changed, reconstruction is not needed, the investment is small, and the implementation is convenient;
4. the method is characterized in that the liquid production data of a single well is measured in a very short time period by changing the using method of a positive displacement instrument, namely a magnetic flap liquid level meter and combining the precise timing of a control system; through the relation of the liquid level of the metering time and the displacement instrument, the relation between the accurate liquid production amount and the time can be obtained more easily, the data of the displacement instrument and the accumulated calculation of the measuring time can be used for quickly obtaining real-time flow data, the liquid production amount data of a single well can be calculated quickly, and a foundation is laid for the realization of oil extraction digitization.
Drawings
Fig. 1 is a schematic diagram of a single-well oil measuring and production measuring system between metering (valve group) units of the embodiment of the utility model.
Fig. 2 is a flow chart of a single-well oil measuring and production measuring method between metering (valve group) units according to the embodiment of the present invention.
In figure 1, 1-separator outlet valve, 2-magnetic flap level gauge, 3-separator balance valve, 4-separator body, 5-separator inlet valve, 6-water pressure gauge, 7-water temperature gauge, 8-single-well separator inlet gate, 9-single-well hot washing gate, 10-single-well water mixing valve, 11-single-well oil return gate, 12-oil return temperature gauge, 13-valve operating device, 14-cable, 15-control system.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples.
Referring to fig. 1, the single-well oil production logging system of the metering room of the present embodiment includes: the separator comprises a separator body 4, a magnetic turning plate liquid level meter 2, a water path pipeline mechanism, an oil path pipeline mechanism and a valve operating device 13; the magnetic turning plate liquid level meter 2 is arranged on the separator body 4 and is used for marking the liquid level height of the liquid flowing into the separator body 4; the waterway pipeline mechanism comprises a hot washing water pipeline, a water mixing water pipeline and a plurality of single-well water mixing pipelines, one end of each single-well water mixing pipeline is connected with the hot washing water pipeline through a single-well hot washing valve 9 and is connected with the water mixing water pipeline through a single-well water mixing valve 10, and the other end of each single-well water mixing pipeline is communicated with a corresponding well mouth; the oil circuit pipeline mechanism comprises a through separator pipeline, an oil return junction and a plurality of single-well oil incoming pipelines, the through separator pipeline is connected with the separator body 4, one end of the oil return junction is connected with the separator body 4, and the other end of the oil return junction is connected with the oil storage container; one end of each single well oil inlet pipeline is connected with a corresponding well mouth, the other end of each single well oil inlet pipeline is connected with a separator pipeline through a single well separator inlet gate 8, and is connected with an oil return gathering pipeline through a single well oil return gate 11; the valve operation device 13 operates all the single-well hot washing valves 9, the single-well water mixing valve 10, the single-well separator inlet gate 8 and the single-well oil return gate 11, controls the opening and closing or adjustment of the valves and the gates, and realizes the execution of the sequential actions of the valves of each process.
The single well oil production measurement system of measurement room still includes: and the control system 15 is used for transmitting a control command to the valve operating device 13 by the control system 15 and controlling the operation of the valve operating device 13.
Each single well oil pipe line and the single well separator inlet gate 8 and the single well oil return gate 11 connected with the single well oil pipe line form a path of oil circuit branch, and the paths of oil circuit branches are arranged in parallel and work independently without mutual influence. In each oil path branch, the inlet gate 8 of the single-well separator and the single-well oil return gate 11 are opened alternatively and cannot be opened simultaneously.
Each single-well water mixing pipeline, the single-well hot washing valve 9 connected with the single-well water mixing pipeline and the single-well water mixing valve 10 connected with the single-well water mixing pipeline form a water channel branch, and the multiple water channel branches are arranged in parallel and work independently without mutual influence. In each waterway branch, the single-well hot washing valve 9 and the single-well water mixing valve 10 are alternatively opened and cannot be simultaneously opened.
The water mixing water supply pipeline is used for providing low-temperature low-pressure water, water supply with the temperature of 28-40 ℃ and the pressure of 1-2Mpa is usually selected, the low-temperature low-pressure water is used for carrying out heat tracing on oil pumped out of a well head, in order to accurately know parameters of the low-temperature low-pressure water, an incoming water pressure gauge 6 and an incoming water temperature gauge 7 are arranged on the water mixing water supply pipeline, and the pressure and the temperature of the water mixing water supply are measured in real time; the hot washing water pipeline is used for providing high-temperature and high-pressure water, water supply with the temperature of 70-75 ℃ and the pressure of 2-4Mpa is usually selected, the high-temperature and high-pressure water is used for hot washing when the oil in the well is weak and can not be pumped out temporarily, and in order to accurately know the parameters of the high-temperature and high-pressure water, a water inlet pressure meter and a water inlet temperature meter are arranged on the hot washing water pipeline, so that the pressure and the temperature of hot washing water can be measured in real time.
And an oil return temperature meter 12 is arranged on each single well oil incoming pipeline and is used for measuring the temperature of oil incoming from each well in real time.
And a separator oil outlet valve 1 is arranged on a connecting pipeline at one end of the separator body 4 and the oil return gathering pipeline, and the emptying of the separator body 4 after the oil metering is finished is controlled.
A separator oil inlet valve 5 is arranged on a connecting pipeline which is connected with the separator body 4 through a separator pipeline and is used for controlling whether oil is fed or not; still extend on the connecting pipeline between separator inlet valve 5 and the separator body 4 and be provided with balanced pipeline, set up separator balance valve 3 on the balanced pipeline, an oil gas pressure for 4 interior oil gas pressure of balanced separator body, make the fluid of well head can flow into separator body 4 through separator inlet valve 5, guarantee that the oil gas pressure is not in too high in the separator body 4 of oil measurement in-process, when separator outlet valve 1 opened, fluid in the separator body 4 can flow out separator body 4 under the pressure effect smoothly.
The valve operating device 13 and the control system 15 are connected by a cable 14 to transmit signals. The magnetic turning plate liquid level meter 2 is connected with the control system 15 in a wired or wireless mode, and liquid level analog quantity output of the separator body 4 measured by the magnetic turning plate liquid level meter 2 is transmitted to the control system 15 after analog-to-digital conversion.
In the system, the valve operation device 13 is used for completing the automatic operation of the valve and the gate on each pipeline in the metering room, the control of the automatic operation is completed by the control system 15, the liquid level analog quantity output of the separator body 4 measured by the magnetic turning plate liquid level meter 2 is transmitted to the control system 15 after analog-to-digital conversion, the operation of the valve on each pipeline is performed according to the oil measuring control process, the oil output of a single well starts to be measured after the oil liquid flows into the separator body 4, the timing is started when the liquid level signal output of the magnetic turning plate liquid level meter 2 of the separator body 4 is output, the liquid level output value is calculated by recording the liquid level output value when the liquid level output reaches 3% -5% of the full-range output, the single well liquid output quantity in unit time can be calculated, the liquid quantity measurement of the single well (oil measurement) in unit time can be completed only by 5% -8% of the original manual metering time, therefore, the oil measurement and production measurement technology is more suitable for single wells with low liquid output, generally, all single wells in a measurement (valve group) room can be subjected to liquid output measurement more than once every day, and the data accuracy and the data acquisition efficiency of oil measurement and production measurement are greatly improved.
In this embodiment, the valve operation device 13 can be controlled by the control system 15 to move autonomously and perform valve and gate operations autonomously between the metering (valve group), the magnetic flap level gauge 2 usually outputs analog quantity, the analog quantity output of 4-20mA is converted by the AD module and then input to the control system 15 of the valve operation device 13 in a wired or wireless manner, and the valve and gate on each pipeline are automatically controlled by the valve operation device 13 in the single-well metering process.
The principle of measuring oil yield in the embodiment is as follows: based on the volume type flow data of the magnetic turning plate liquid level meter, the liquid output and flow at the standard time are finely converted by the time corresponding to the change of every 1% of the capacity, a plurality of sampling periods are taken, the data of the sampling periods are averaged to be used as the standard liquid output, and therefore, the high-precision data measurement and collection are realized at lower equipment cost through fine measurement.
Referring to fig. 2, based on the single-well oil production measurement system in the measurement room, the single-well oil production measurement method in the measurement room has the following processes:
s1: the control system starts an oil measuring and production measuring process;
s2: the valve operating device 13 is used for operating and closing the single-well watering valve 10 and stopping supplying water to the single-well watering pipeline;
s3: waiting for an appointment time, typically no more than 5 minutes;
s4: opening an oil inlet valve 5 of the separator to convey single-well incoming oil into the separator body 4;
s5: opening an inlet gate 8 of the single-well separator to guide the single-well oil to an oil inlet valve 5 of the separator;
s6: closing the single-well oil return valve 11 and stopping oil transportation to the oil return gathering line;
s7: opening the balance valve 3 of the adjusting separator to balance the gas pressure in the separator body 4;
s8: waiting for a set time, and starting timing generally until zero output of the magnetic turning plate liquid level meter 2 is achieved;
s9: the oil liquid level in the separator body 4 reaches 3% -5% of full-scale output of the magnetic turning plate liquid level meter 2, timing is finished, timing capacity is measured, and the oil liquid level in the separator body 4 in the time period is measured through the numerical value difference and the corresponding time difference of the magnetic turning plate liquid level meter 2, so that measurement is finished;
s10: opening the oil outlet valve 1 of the separator, and discharging the oil in the separator body 4 to an oil return gathering line;
s11: closing and adjusting the balance valve 3 of the separator to enable the gas pressure in the separator body 4 to rise;
s12: opening a single-well oil return gate 11 to enable single-well crude oil to directly flow back to an oil return gathering line;
s13: closing the inlet gate 8 of the single-well separator, and stopping the separator body 4 from conveying the single-well oil;
s14: closing the oil inlet valve 5 of the separator, and stopping the liquid inlet of the separator body 4;
s15: the separator body 4 is emptied under pressure, the oil outlet valve 1 of the separator is closed, and oil is discharged to the oil return gathering line;
s16: starting a single-well watering valve 10 to begin watering a production single well;
s17: and judging whether the water mixing parameter is normal or not according to the oil return temperature.
According to the technical scheme, the oil pipe in the metering room of the utility model flows from the well mouth to the metering room, in the metering room, the oil pipe flows to the separator body 4 through the single-well separator inlet gate 8, flows to the oil return collection path through the single-well oil return gate 11, when the oil is measured, the single-well separator inlet gate 8 is opened, the single-well oil return gate 11 is closed, and the oil pipe flows away through the oil return collection path after the liquid level is measured after the separator body 4 is filled with the oil; during normal production, the inlet gate 8 of the single-well separator is closed, the single-well oil return gate 11 is opened, and oil directly flows away through the oil return junction. The water pipe in the measurement room flows to the well head from the measurement room, in the measurement room, the hot washing water pipeline flows to the well head through the single-well hot washing gate 9, the watering water pipeline flows to the well head through the single-well watering valve 10, and the normal production watering flows back to the measurement room after the well head is converged with the oil outlet, so that the watering of the well head needs to be closed firstly when the oil is measured.
The utility model discloses a to the positive displacement instrument, also the change of the application method of board level gauge is turned over to magnetism, combine valve operating means 13's control system 15's accurate timing, realize obtaining the liquid production volume data of measuring the individual well in the minimum time quantum, liquid level relation through measuring time and positive displacement instrument, can be relatively easy more accurate liquid production volume and the relation of time of acquisition, be exactly with the data of positive displacement instrument and the calculation of measuring time accumulation, the quick real-time flow data that has obtained, the liquid production volume data of individual well that also can be quick calculate.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (9)
1. A single well oil production logging system between measurement, comprising: the separator comprises a separator body (4), a magnetic turning plate liquid level meter (2), a water path pipeline mechanism, an oil path pipeline mechanism and a valve operating device (13); the magnetic turning plate liquid level meter (2) is arranged on the separator body (4) and is used for marking the liquid level height of liquid flowing into the separator body (4); the waterway pipeline mechanism comprises a hot washing water pipeline, a water mixing water pipeline and a plurality of single-well water mixing pipelines, wherein one end of each single-well water mixing pipeline is connected with the hot washing water pipeline through a single-well hot washing valve (9) and is connected with the water mixing water pipeline through a single-well water mixing valve (10), and the other end of each single-well water mixing pipeline is communicated with a corresponding well mouth; the oil circuit pipeline mechanism comprises a through separator pipeline, an oil return junction and a plurality of single-well oil incoming pipelines, the through separator pipeline is connected with the separator body (4), one end of the oil return junction is connected with the separator body (4), and the other end of the oil return junction is connected with the oil storage container; one end of each single well oil inlet pipeline is connected with a corresponding well mouth, the other end of each single well oil inlet pipeline is connected with a separator pipeline through a single well separator inlet gate (8), and is connected with an oil return gathering line through a single well oil return gate (11); the valve operation device (13) operates all the single-well hot washing valves (9), the single-well water mixing valve (10), the single-well separator inlet gate (8) and the single-well oil return gate (11) to control the opening and closing or adjustment of the valves and the gates.
2. The system for single well logging of oil in a measurement room of claim 1, further comprising: and the control system (15), wherein the control system (15) transmits a control command to the valve operating device (13) to control the operation of the valve operating device (13).
3. The single-well oil production logging system of the metering room of claim 2, wherein each single-well oil pipeline and a single-well separator inlet gate (8) and a single-well oil return gate (11) connected with the single-well oil pipeline form a single-well oil branch, and the multiple oil branches are arranged in parallel and work independently; in each oil path branch, the inlet gate (8) of the single-well separator and the single-well oil return gate (11) are opened alternatively.
4. The single-well oil logging system of a metering room of claim 3, wherein each single-well watering pipeline and the single-well hot washing valve (9) and the single-well watering valve (10) connected with the single-well watering pipeline form a waterway branch, and the waterway branches are arranged in parallel and work independently; in each waterway branch, a single-well hot washing valve (9) and a single-well water mixing valve (10) are opened alternatively.
5. The single-well oil production logging system of a measuring room of claim 4, wherein an incoming water pressure gauge (6) and an incoming water temperature gauge (7) are arranged on the water-blended incoming water pipeline, and the pressure and the temperature of the water-blended incoming water are measured in real time; the hot washing water pipeline is provided with a water pressure meter and a water temperature meter, and the pressure and the temperature of the hot washing water are measured in real time.
6. The single-well oil production logging system of a metering room of claim 5, wherein each of the single-well oil-incoming pipelines is provided with an oil return temperature meter (12) for measuring the temperature of the oil coming from each well in real time.
7. The single-well oil production measuring system of the metering room of claim 6, wherein a separator oil outlet valve (1) is arranged on a connecting pipeline at one end of the separator body (4) and the return oil gathering line to control whether the separator body (4) produces oil or not and adjust the oil output.
8. The single-well oil production logging system of a metering room of claim 7, wherein a separator oil inlet valve (5) is arranged on a connecting pipeline which is connected with the separator body (4) through a separator pipeline and is used for controlling whether oil is fed or not; a balance pipeline is further arranged on a connecting pipeline between the separator oil inlet valve (5) and the separator body (4) in an extending mode, and a separator balance valve (3) is arranged on the balance pipeline and used for balancing the pressure of oil gas in the separator body (4).
9. The single-well logging system of claim 8, wherein the valve operating means (13) and the control system (15) are connected by a cable (14) for signal transmission; the magnetic turning plate liquid level meter (2) is connected with the control system (15), and liquid level analog quantity output of the separator body (4) measured by the magnetic turning plate liquid level meter (2) is transmitted to the control system (15) after analog-to-digital conversion.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110821471A (en) * | 2019-10-25 | 2020-02-21 | 深圳中科捷飞科技有限公司 | Single-well oil measurement and production measurement system and method between measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110821471A (en) * | 2019-10-25 | 2020-02-21 | 深圳中科捷飞科技有限公司 | Single-well oil measurement and production measurement system and method between measurement |
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