CN112393781A - Device, sewage tank and method for measuring oil-water ratio in liquid produced by gas gathering station in real time - Google Patents
Device, sewage tank and method for measuring oil-water ratio in liquid produced by gas gathering station in real time Download PDFInfo
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- CN112393781A CN112393781A CN202011240718.XA CN202011240718A CN112393781A CN 112393781 A CN112393781 A CN 112393781A CN 202011240718 A CN202011240718 A CN 202011240718A CN 112393781 A CN112393781 A CN 112393781A
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- 239000007788 liquid Substances 0.000 title claims abstract description 211
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000010865 sewage Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 37
- 239000007789 gas Substances 0.000 description 21
- 238000001514 detection method Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a device, a sewage tank and a method for measuring the oil-water ratio in produced liquid of a gas gathering station in real time, wherein the device comprises a first liquid level meter, a second liquid level meter and an upper computer, wherein the first liquid level meter and the second liquid level meter are arranged in a container for containing the produced liquid, and the output end of the first liquid level meter and the second liquid level meter are connected with the upper computer; the first liquid level meter is used for measuring the total liquid level height of the sewage tank and transmitting the measured total liquid level height of the sewage tank to the upper computer; the second liquid level meter is used for measuring the liquid level height of the water layer in the sewage tank and transmitting the measured total liquid level height of the sewage tank to the upper computer; the upper computer is used for calculating the liquid level height of the condensate layer according to the total liquid level height of the sewage tank and the liquid level height of the water layer, and calculating the oil-water ratio and the condensate oil yield in real time according to the liquid level height of the condensate layer. By utilizing the oil-water layering characteristic, the condensate oil yield and the oil-water ratio can be conveniently obtained, the real-time measurement of the oil-water ratio is realized, the structure is simple, the cost is lower, and the realization is convenient.
Description
Technical Field
The invention belongs to the technical field of oil-water ratio measurement, and particularly relates to a device, a sewage tank and a method for measuring the oil-water ratio in produced liquid of a gas gathering station in real time, so as to master the production dynamics of a block to which the gas gathering station belongs.
Background
The natural gas produced by the gas well contains liquids such as condensate oil, water and the like, the gas-liquid mixed fluid is conveyed to the gas collecting station through a gas production pipeline for primary treatment, the gas collecting station adopts a separator to carry out gas-liquid separation on the gas-liquid mixed fluid, the separated liquid enters a sewage tank through a sewage discharge pipeline for storage, and the liquid is periodically pulled and transported to a sewage treatment plant by a tank truck for condensate oil recovery and sewage treatment. In order to carry out dynamic analysis on gas well production, liquid production data of a gas gathering station need to be mastered, the gas gathering station mainly measures the liquid production in real time through a magnetostrictive liquid level meter installed on a sewage tank, but only measures the total liquid quantity, and the proportion of oil to water in the liquid production cannot be known. Meanwhile, the condensate oil has a good market value, the condensate oil yield can only be calculated through the recovery amount of a sewage treatment plant, and the condensate oil loss is easily caused in the sewage transportation process, so that a device and a method capable of measuring the condensate oil yield and the oil-water ratio in real time are needed.
Disclosure of Invention
The invention provides a device, a sewage tank and a method for measuring the oil-water ratio in produced liquid of a gas gathering station in real time.
In order to achieve the purpose, the device for measuring the oil-water ratio in the produced liquid of the gas gathering station in real time comprises a first liquid level meter, a second liquid level meter and an upper computer, wherein the first liquid level meter and the second liquid level meter are arranged in a container for containing the produced liquid, and the output end of the first liquid level meter and the output end of the second liquid level meter are connected with the upper computer; the floating ball density of the first liquid level meter is less than the condensate oil density, and the first liquid level meter is used for measuring the total liquid level height h of the sewage tank and transmitting the measured total liquid level height h of the sewage tank to an upper computer; the floating ball density of the second liquid level meter is between that of water and condensate oil, and is used for measuring the liquid level height h of the water layer in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the total liquid level h of the sewage tank and the liquid level h of the water layersCalculating the height h of the condensate layer liquid levelyAnd according to the height h of the condensate layer liquid levelyAnd calculating the oil-water ratio and the condensate oil yield in real time.
Further, the first liquid level meter and the second liquid level meter are both magnetostrictive liquid level meters.
A sewage tank capable of measuring the oil-water ratio in liquid produced by a gas gathering station in real time comprises a tank body, a first liquid level meter, a second liquid level meter and an upper computer, wherein the first liquid level meter and the second liquid level meter are installed in the tank body, the output ends of the first liquid level meter and the second liquid level meter are connected with the input end of the upper computer, and the first liquid level meter is used for measuring the total liquid level height h of the sewage tank and transmitting the measured total liquid level height h of the sewage tank to the upper computer; the second liquid level meter is used for measuring the liquid level height h of the water layer in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the total liquid level h of the sewage tank and the liquid level h of the water layersCalculating the height h of the condensate layer liquid levelyAnd according to the height h of the condensate layer liquid levelyAnd calculating the oil-water ratio and the condensate oil yield in real time.
Furthermore, the upper computer is a singlechip.
Further, an alarm is installed outside the tank body and controlled by an upper computer, and when the upper computer judges that the total liquid level height in the tank body exceeds the maximum allowable value of the tank body, the alarm is controlled to give an alarm.
Furthermore, the alarm is an audible and visual alarm.
Further, an electric heater is arranged in the tank body.
Further, the inner wall is coated with an oil-repellent coating.
A method for measuring the oil-water ratio in produced liquid of a gas gathering station in real time comprises the following steps:
Compared with the prior art, the invention has at least the following beneficial technical effects:
by utilizing the oil-water layering characteristic, two liquid level meters with floating balls with different densities are arranged in the sewage tank to measure the total liquid level and the water level height, further calculate the condensate oil yield and the oil-water ratio, realize the real-time measurement of the oil-water ratio, and have the advantages of simple structure, lower cost and convenient realization.
Furthermore, the first liquid level meter and the second liquid level meter are both magnetostrictive liquid level meters, the magnetostrictive liquid level meters are high in reliability, high in precision, good in safety and easy to install and maintain, secondary instruments of the magnetostrictive liquid level meters adopt standard output signals, a microcomputer can process the signals conveniently, networking work is easy to achieve, and the automation degree of the whole measuring system is improved.
The sewage tank capable of measuring the oil-water ratio in the produced liquid of the gas collecting station in real time is provided with the device for measuring the oil-water ratio in the produced liquid of the gas collecting station in real time, and can measure the oil-water ratio in the produced liquid in real time, so that condensate loss easily caused in the process of sewage transportation is avoided.
Further, an alarm is installed outside the tank body and controlled by an upper computer, and when the upper computer judges that the total liquid level height in the tank body exceeds the maximum allowable value of the tank body, the alarm is controlled to give an alarm, so that liquid is prevented from overflowing out of the tank body.
Furthermore, the alarm is an audible and visual alarm, so that the sense of workers is stimulated from two aspects, and the warning effect is improved.
Furthermore, an electric heater is arranged in the tank body, and when the rapid detection is needed, the heater can be turned on to keep the condensate oil and the water at a certain temperature, so that the condensate oil and the water are quickly separated, and the purpose of rapid detection is achieved.
Further, the inner wall scribbles grease proofing coating, and in the transportation, there is not residual crude oil in the sewage jar, can practice thrift condensate oil on the one hand, and on the other hand realizes the non-washing function of sewage jar, practices thrift manpower and water resource.
A method for measuring the oil-water ratio in the liquid produced by a gas gathering station in real time utilizes the oil-water layering characteristic to respectively measure the height of oil and the height of water, and transmits the oil and water heights to an upper computer, and the upper computer calculates the oil-water ratio in time according to the two heights measured in real time, so that the operation is simple and convenient.
Drawings
FIG. 1 is a schematic view of the level of a wastewater tank.
In the drawings: 1-a sewage tank; 2-a first magnetostrictive liquid level meter and 3-a second magnetostrictive liquid level meter; 4-condensate oil layer; 5-aqueous layer; h-total liquid level height of the sewage tank; h isy-sump condensate level height; h iss-water level in the tank.
Detailed Description
In order to make the objects and technical solutions of the present invention clearer and easier to understand. The present invention will be described in further detail with reference to the following drawings and examples, wherein the specific examples are provided for illustrative purposes only and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Because the condensate oil density is less than the water density and the condensate oil density and the water density are not mutually soluble, the produced liquid of the gas gathering station can be layered after entering the sewage tank, the condensate oil layer 4 is on the upper layer, and the water layer 5 is on the lower layer.
Referring to fig. 1, a method for measuring the oil-water ratio in the produced liquid of a gas gathering station in real time comprises the following steps:
And 3, combining the radius r of the sewage tank, and calculating the oil-water ratio A (h) in real time by using a computery/hsYield of condensate M, M2 pi r2hyρOil(ii) a Where ρ isOilIs the density of the condensate.
The utility model provides a device of oil-water ratio in real-time measurement gas gathering station production liquid, includes first magnetostrictive liquid level meter 2, second magnetostrictive liquid level meter 3 and host computer, and the host computer can be singlechip, computer or other devices that have the calculation function, and the output and the host computer communication of first magnetostrictive liquid level meter 2 and second magnetostrictive liquid level meter 3 are connected. The first magnetostrictive liquid level meter 2 and the second magnetostrictive liquid level meter 3 are installed in a container for containing production liquid, the density of a floating ball of the first magnetostrictive liquid level meter 2 is less than that of condensate oil, the first magnetostrictive liquid level meter is used for measuring the total liquid level h of the sewage tank and transmitting the measured total liquid level h of the sewage tank to an upper computer; the floating ball density of the second magnetostrictive liquid level meter 3 is between the density of water and the density of condensate oil, and is used for measuring the liquid level height h of the water layer 5 in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the total liquid level h of the sewage tank and the liquid level h of the water layer 5sCalculating the height h of the condensate layer liquid levely，hy＝h-hs(ii) a And according to the height h of the liquid level of the condensate layeryCalculating the oil-water ratio A ═ h in real timey/hsYield of condensate M, M2 pi r2hyρOil。
A sewage tank capable of measuring oil-water ratio in real time comprises a tank bodyFirst magnetostrictive level meter 2, second magnetostrictive level meter 3, alarm, host computer and display, first magnetostrictive level meter 2 and second magnetostrictive level meter 3 install in the jar body, and alarm, host computer and display are located outside the sewage jar, and the output and the host computer of first magnetostrictive level meter 2 and second magnetostrictive level meter 3 are connected. The upper computer judges whether the total liquid level height of the sewage tank reaches the maximum allowable value of the liquid level of the sewage tank or not according to the total liquid level height h of the sewage tank obtained by measurement, if so, a signal is sent to the alarm to make the alarm warn, and the alarm is an audible and visual alarm to prevent the liquid from overflowing out of the tank; the floating ball density of the second magnetostrictive liquid level meter 3 is between the density of water and the density of condensate oil, and is used for measuring the liquid level height h of the water layer 5 in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the total liquid level h of the sewage tank and the liquid level h of the water layer 5sCalculating the height h of the condensate layer liquid levelyThe yield M of condensate oil and the oil-water ratio A, and calculating the liquid level height h of the condensate oil layeryAnd the condensate yield M and the oil-water ratio A are transmitted to a display, wherein: h isy＝h-hs；M＝2πr2hyρOilWhere is hy/hs. Preferably, an electric heater is arranged in the tank body, and when the rapid detection is needed, the heater can be turned on to keep the condensate oil and the water at a certain temperature, so that the condensate oil and the water are quickly separated, and the purpose of rapid detection is achieved.
Preferably, the inner wall of the tank body is coated with an oil-proof coating, such as a polytetrafluoroethylene coating, and in the transfer process, no residual crude oil exists in the sewage tank, so that condensate oil can be saved, the washing-free function of the sewage tank can be realized, and manpower and water resources are saved.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. The device for measuring the oil-water ratio in the produced liquid of the gas gathering station in real time is characterized by comprising a first liquid level meter (2), a second liquid level meter (3) and an upper computer, wherein the first liquid level meter (2) and the second liquid level meter (3) are arranged in a container for containing the produced liquid, and the output end of the first liquid level meter is connected with the upper computer; the floating ball density of the first liquid level meter (2) is less than the condensate oil density, and the first liquid level meter is used for measuring the total liquid level height h of the sewage tank and transmitting the measured total liquid level height h of the sewage tank to an upper computer; the floating ball density of the second liquid level meter (3) is between the density of water and the density of condensate oil, and is used for measuring the liquid level height h of a water layer (5) in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the total liquid level h of the sewage tank and the liquid level h of the water layer (5)sCalculating the height h of the condensate layer liquid levelyAnd according to the height h of the condensate layer liquid levelyAnd calculating the oil-water ratio and the condensate oil yield in real time.
2. The device for measuring the oil-water ratio of the produced liquid of the gas gathering station in real time as claimed in claim 1, wherein the first liquid level meter and the second liquid level meter are both magnetostrictive liquid level meters.
3. The sewage tank capable of measuring the oil-water ratio in liquid produced by the gas gathering station in real time is characterized by comprising a tank body, a first liquid level meter (2), a second liquid level meter (3) and an upper computer, wherein the first liquid level meter (2) and the second liquid level meter (3) are both installed in the tank body, the output ends of the first liquid level meter (2) and the second liquid level meter (3) are connected with the input end of the upper computer, and the first liquid level meter (2) is used for measuring the total liquid level h of the sewage tank and transmitting the measured total liquid level h of the sewage tank to the upper computer; the second liquid level meter (3) is used for measuring the liquid level height h of the water layer (5) in the sewage tanksAnd transmitting the measured total liquid level height h of the sewage tank to an upper computer; the upper computer is used for controlling the upper computer to work according to the total liquid level h of the sewage tank and the liquid level of the water layer (5)Height hsCalculating the height h of the condensate layer liquid levelyAnd according to the height h of the condensate layer liquid levelyAnd calculating the oil-water ratio and the condensate oil yield in real time.
4. The sewage tank capable of measuring the oil-water ratio in the produced liquid of the gas collecting station in real time as claimed in claim 3, wherein the upper computer is a single chip microcomputer.
5. The sewage tank capable of measuring the oil-water ratio of produced liquid of the gas gathering station in real time as claimed in claim 4, wherein an alarm is installed outside the tank body and controlled by an upper computer, and when the upper computer judges that the total liquid level in the tank body exceeds the maximum allowable value of the tank body, the alarm is controlled to give an alarm.
6. The sewage tank capable of measuring the oil-water ratio of the produced liquid of the gas gathering station in real time as claimed in claim 5, wherein the alarm is an audible and visual alarm.
7. The sewage tank capable of measuring the oil-water ratio in the produced liquid of the gas gathering station in real time as claimed in claim 3, wherein an electric heater is arranged in the tank body.
8. The sewage tank capable of measuring the oil-water ratio in the produced liquid of the gas gathering station in real time as claimed in claim 3, wherein the inner wall is coated with an oil-proof coating.
9. A method for measuring the oil-water ratio in produced liquid of a gas gathering station in real time is characterized by comprising the following steps:
step 1, installing a first liquid level meter (2) and a second liquid level meter (3) in a container for containing production liquid, and measuring the total liquid level height h of the container for containing the production liquid by using the first liquid level meter (2); the second liquid level meter (3) is used for measuring the liquid level height h of a water layer (5) in a container for containing the produced liquids；
Step 2, obtaining total liquid of the container for containing the produced liquid according to the measurement of the first liquid level meter (2) and the second liquid level meter (3)Height h and height h of liquid level of water layer (5) in container for containing liquidsCalculating the height h of the condensate layer liquid level in real timey，hy＝h-hs；
Step 3, combining the bottom area S of the container for containing the produced liquid, and calculating the oil-water ratio A h in real timey/hsYield of condensate M, M ═ ShyρOil(ii) a Where ρ isOilIs the density of the condensate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011240718.XA CN112393781A (en) | 2020-11-09 | 2020-11-09 | Device, sewage tank and method for measuring oil-water ratio in liquid produced by gas gathering station in real time |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011240718.XA CN112393781A (en) | 2020-11-09 | 2020-11-09 | Device, sewage tank and method for measuring oil-water ratio in liquid produced by gas gathering station in real time |
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|---|---|---|---|---|
| JP2003194619A (en) * | 2001-12-25 | 2003-07-09 | Denso Corp | Detector for vehicle |
| CN102519553A (en) * | 2012-01-06 | 2012-06-27 | 青岛澳科仪器有限责任公司 | Magnetostrictive liquid level meter |
| CN202748106U (en) * | 2012-08-02 | 2013-02-20 | 中国石油天然气股份有限公司 | Oil and water level magnetostriction double-float liquid level meter of liquid storage tank |
| CN208547406U (en) * | 2018-08-16 | 2019-02-26 | 西安精准电子科技有限责任公司 | A kind of oily whey interface liquid level gauge of hydrometer method measurement |
| CN111044118A (en) * | 2018-10-15 | 2020-04-21 | 中国石油天然气股份有限公司 | System, method and device for measuring oil-water interface height in normal-pressure oil tank |
-
2020
- 2020-11-09 CN CN202011240718.XA patent/CN112393781A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194619A (en) * | 2001-12-25 | 2003-07-09 | Denso Corp | Detector for vehicle |
| CN102519553A (en) * | 2012-01-06 | 2012-06-27 | 青岛澳科仪器有限责任公司 | Magnetostrictive liquid level meter |
| CN202748106U (en) * | 2012-08-02 | 2013-02-20 | 中国石油天然气股份有限公司 | Oil and water level magnetostriction double-float liquid level meter of liquid storage tank |
| CN208547406U (en) * | 2018-08-16 | 2019-02-26 | 西安精准电子科技有限责任公司 | A kind of oily whey interface liquid level gauge of hydrometer method measurement |
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Application publication date: 20210223 |