CN215860130U - Oil-water well mouth metering device - Google Patents
Oil-water well mouth metering device Download PDFInfo
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- CN215860130U CN215860130U CN202122015199.3U CN202122015199U CN215860130U CN 215860130 U CN215860130 U CN 215860130U CN 202122015199 U CN202122015199 U CN 202122015199U CN 215860130 U CN215860130 U CN 215860130U
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Abstract
The utility model discloses an oil-water well mouth metering device which comprises a base, wherein a main pipeline is arranged between two ends of the base through a first support, an inlet connecting flange, a second ball valve, a filtering air eliminator, a gas-liquid Coriolis mass flowmeter, a first ball valve, a second one-way valve, a pressure sensor and an outlet connecting flange are sequentially arranged on the main pipeline from the left end to the right end of the main pipeline, and a bypass pipeline is further arranged on the base through the second support. Through three medium circulation modes, the main channel is completely designed in a linear mode without any bent pipe, and when a crude oil medium circulates, the pressure loss of the medium can be reduced to the minimum, so that the circulation capacity of the crude oil-water medium is improved; the safety channel can automatically switch pipelines and dredge media after the pipelines are blocked, so that the pressure of the whole pipeline is ensured to be stably transited, and the field safety of an oil well is ensured; the maintenance passage can ensure continuous operation without stopping the well during the maintenance of the oil well equipment.
Description
Technical Field
The utility model relates to the field of measurement, in particular to an oil-water wellhead metering device.
Background
With the increasing promotion of the country to the construction of the digital oil field, each large oil field is reinforced to be correspondingly constructed, wherein the construction comprises the accurate acquisition of the liquid production amount of each oil well and the calculation of the oil-water ratio, so that data reference is provided for an oil extraction process through data analysis, decision making is assisted, and the oil extraction efficiency is improved.
In the aspect of dealing with the metering of a crude oil water well head, the current common scheme is as follows:
the method comprises the following steps of adopting three metering devices of oil, gas and water with a separation tank: the separation of oil, gas and water media of crude oil is realized through a separation tank, and then oil, gas and water are respectively measured through a single-phase flow meter. The method has the advantages of high metering precision and wide measuring range. But the disadvantages are that the equipment has large volume, heavy weight and high cost, so that the equipment cannot be applied to tens of thousands of oil field well heads in batches. And the equipment often contains more return bends, and the medium causes pressure loss when flowing through to be big, is unfavorable for the crude oil circulation, causes equipment jam easily and easily causes the incident.
Secondly, adopting a power diagram yield calculation method: the method has the defects of low metering precision and single metering parameter, and cannot meet the complex working condition of the oil field well head, particularly the well head with large liquid volume and high gas content, and the metering precision cannot meet the requirement of a user.
Thirdly, adopting a wellhead metering device with a radioactive source: the method has the disadvantages that the radioactive source belongs to environmental pollutants, and causes long-term persistent radiation to human body and surrounding environment, which is not beneficial to human health and environmental management.
Through the analysis, in order to solve the oil field crude oil profit measurement problem, need equipment to satisfy: low cost, small pressure loss, high metering precision, environmental protection, safety, reliability and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an oil-water wellhead metering device, which solves the problems in the background technology.
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides an profit well head metering device, includes the base, install the trunk line through support one between the both ends of base, be equipped with inlet flange, ball valve two in proper order by its left end to its right-hand member on the trunk line and filter degasser, gas-liquid type Coriolis mass flowmeter, ball valve one, second check valve, pressure sensor and outlet flange.
Still install the by pass line through support two on the base, and the one end of by pass line is passed through the connecting tube and is connected with the trunk line between ball valve two and the access flange, and the other end of by pass line passes through the connecting tube and is connected with the trunk line between the access flange with second check valve, is equipped with ball valve three and first check valve in proper order from left to right on the by pass line, and filters the top of air eliminator and passes through gas pipeline and by pass line intercommunication.
Further inject, still be connected with the constant pressure valve pipeline on the trunk line between inlet flange and the ball valve two, the other end and the ball valve third of constant pressure valve pipeline and the by pass line between the first check valve are connected, install the constant pressure valve on the constant pressure valve pipeline.
Further inject, the both ends of gas-liquid type coriolis flowmeter communicate with the trunk line through adapter flange respectively, are connected with arched surveying buret through shunting body between two adapter flanges, install detecting element and driver part on the surveying buret.
Further limit, a sampling valve is arranged on a main pipeline between the filtering air eliminator and the gas-liquid Coriolis mass flowmeter.
Further limiting, the first support and the second support are both vertically welded with the upper surface of the base.
The utility model has the following beneficial effects: according to the oil-water wellhead metering device, through three medium circulation modes, the main channel is completely designed in a linear mode without any bent pipe, and when a crude oil medium circulates, the pressure loss of the medium can be reduced to the minimum, so that the circulation capacity of the crude oil-water medium is improved; the safety channel can automatically switch pipelines and dredge media after the pipelines are blocked, so that the pressure of the whole pipeline is ensured to be stably transited, and the field safety of an oil well is ensured; the maintenance channel can ensure continuous operation without stopping the well during the maintenance of the oil well equipment; therefore, the functional characteristics of low pressure loss, high precision, safety, reliability and the like are realized, and the requirement of oil field wellhead application is met.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of a gas-liquid Coriolis mass flow meter in accordance with the present invention.
In the figure: 1. an inlet connecting flange; 2. a main pipeline; 3. a bypass conduit; 4. an air line; 5. a first ball valve; 6. a constant pressure valve conduit; 7. a base; 8. a first bracket; 9. a second bracket; 10. a ball valve II; 11. a filtering air eliminator; 12. gas-liquid type coriolis mass flowmeters; 13. a first check valve; 14. a pressure sensor; 15. an outlet connecting flange; 16. a sampling valve; 17. a constant pressure valve; 18. connecting pipes; 19. a second one-way valve; 20. a ball valve III; 100. crude oil; 201. a transfer flange; 202. a flow divider; 203. a measurement tube; 204. a detection section; 205. a drive member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an profit well head metering device, includes base 7, installs trunk line 2 through support 8 between base 7's the both ends, is equipped with inlet flange 1, ball valve two 10, filtering air eliminator 11, gas-liquid type Coriolis mass flowmeter 12, ball valve one 5, second check valve 19, pressure sensor 14 and export flange 15 by its left end to its right-hand member in proper order on trunk line 2.
Still install bypass pipeline 3 through two 9 supports on the base 7, and bypass pipeline 3's one end is passed through the connecting pipe 18 and is connected with trunk line 2 between ball valve two 10 and the access flange 1, bypass pipeline 3's the other end passes through the connecting pipe 18 and is connected with trunk line 2 between second check valve 19 and the access flange 15, last three 20 and the first check valve 13 of ball valve that are equipped with in proper order of bypass pipeline 3 from left to right, and the top of filtering air eliminator 11 is passed through gas pipeline 4 and bypass pipeline 3 intercommunication.
Still be connected with constant pressure valve pipeline 6 on the trunk line 2 between inlet flange 1 and the second 10 of ball valve, the other end and the third 20 of ball valve of constant pressure valve pipeline 6 and the by pass line 3 between the first check valve 13 are connected, install constant pressure valve 17 on the constant pressure valve pipeline 6.
Two ends of the gas-liquid type Coriolis flowmeter are respectively communicated with the main pipeline 2 through adapter flanges 201, an arched measuring pipe 203 is connected between the two adapter flanges 201 through a shunt body 202, and a detection component 204 and a driving component 205 are mounted on the measuring pipe 203.
A sampling valve 16 is arranged on the main pipe 2 between the filtering air eliminator 11 and the gas-liquid type Coriolis mass flowmeter 12.
The first support 8 and the second support 9 are vertically welded with the upper surface of the base 7.
This profit well head metering device, through three kinds of medium circulation modes, main entrance, escape way and maintenance passageway, wherein:
a main channel: crude oil 100 is input from an inlet connecting flange 1 of a main pipeline 2, and sequentially flows through a second ball valve 10, a filtering degasser 11, a gas-liquid Coriolis mass flowmeter 12, a first ball valve 5, a second one-way valve 19, a pressure sensor 14 and an outlet connecting flange 15, and the main pipeline has the following three characteristics:
structural form part: the main channel is completely designed in a linear mode without any bent pipe, and when a crude oil medium flows, the pressure loss of the medium can be reduced to the minimum, so that the flow capacity of the crude oil-water medium is improved;
oil-gas separation part: associated gas contained in crude oil is separated and discharged by adopting a filtering air eliminator 11, after a crude oil mixed solution enters the filtering air eliminator 11, pressure is reduced due to pipeline expansion, the crude oil associated gas is released in a cavity of the filtering air eliminator 11 and is discharged through an upper gas pipeline 4, the crude oil mixed solution enters a bypass pipeline 3 and finally is gathered and enters a main pipeline 2 to be discharged together with an oil-water medium, the main oil-water medium is precipitated in the cavity of the filtering air eliminator 11 for a short time, so that the oil-water mixed solution is more uniform, the oil-water mixed solution passes through the filtering air eliminator 11 and then is subjected to measurement of multiple parameters such as liquid quantity, water content, density, temperature and the like through a gas-liquid mass flowmeter 12, and the oil-gas separation of the part improves the field metering environment of an oil field wellhead, reduces the influence of the crude oil associated gas on the metering precision, and improves the metering precision and stability;
liquid amount measuring section: the gas-liquid Coriolis mass flowmeter 12 is used for metering oil-water mixed liquid, the mass flow measurement technology is the key point of the development of the current national science and technology in the field of process control, and the Coriolis mass flowmeter is widely applied due to the fact that the Coriolis mass flowmeter can measure various media under complex environmental conditions with high accuracy and high reliability;
referring to fig. 3, when the gas-liquid coriolis mass flowmeter 12 is in operation, the measurement tube 203 resonates under the action of the driving unit 205, the medium fluid flows into the flow splitting body 202 through the connecting flange 201, and the medium is split into the measurement tube 203, and according to the coriolis effect, the measurement tube receives a reaction force, i.e., coriolis force, from the medium fluid, so that the vibrations of the measurement tube at the symmetrical positions are asynchronous, which means that there is a time difference, i.e., a phase difference, between the vibrations of the measurement tube and the measurement tube, and the value of the phase difference is proportional to the mass flow rate of the medium, and the mass flow rate of the medium fluid can be obtained by collecting the vibration signal through the detecting unit 204 and using a digital signal processing technique.
The second one-way valve 19 in the main channel is communicated in one direction according to the flow direction design, and the fluid is forbidden to pass in the opposite direction, so that the whole pipeline can be ensured, and crude oil can be prevented from flowing backwards.
A safety channel: because the crude oil of the wellhead of the oil field contains solid impurities and is easy to scale and wax, the instrument is easy to block, the safety channel of the design can automatically switch pipelines and dredge media after the pipeline is blocked, the pressure of the whole pipeline is ensured to be stably transited, and the field safety of the oil well is ensured. The secure channel is described as follows:
when the filtering and air-eliminatnig device 11 or the gas-liquid type Coriolis mass flowmeter 12 is blocked, the constant pressure valve 17 is opened according to the set threshold value, the crude oil mixed fluid is input through the inlet connecting flange 1, and then flows through the constant pressure valve 17, the constant pressure valve pipeline 6, the bypass pipeline 3, the main pipeline 2 and the outlet connecting flange 15, thereby avoiding the equipment which is easy to block, realizing the automatic switching of the circulating pipeline, ensuring the pressure safety of the oil well, the safety channel can automatically switch the pipeline and dredge the medium after the pipeline is blocked, ensuring the stable pressure transition of the whole pipeline, and ensuring the field safety of the oil well.
Maintaining the channel: because the oil well site has regular inspection, maintenance and repair work, and the like, in order to avoid stopping the well, a maintenance channel is designed, and the continuous operation without stopping the well during the maintenance of the oil well equipment can be ensured. The maintenance access is described as follows:
the ball valve 10 is manually opened, crude oil mixed liquid 100 is input through the inlet connecting flange 1, sequentially flows through the connecting pipe 18, the ball valve III 20 on the bypass pipeline 3 and the first check valve 13 and then enters the main pipeline 2 and the outlet connecting flange 15, continuous circulation of crude oil is realized, well operation is not stopped, after maintenance and repair are completed, the maintenance channel can be closed by manually closing the ball valve III 20, a crude oil medium 100 is circulated through the main pipeline 2, namely, the normal metering function of the device is recovered, the first check valve 13 is communicated in a single direction according to the flow direction design, fluid is prohibited from passing in the opposite direction, the whole pipeline can be ensured, and crude oil backflow is prevented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an oil water well head metering device, includes base (7), its characterized in that: a main pipeline (2) is mounted between two ends of the base (7) through a first support (8), and an inlet connecting flange (1), a second ball valve (10), a filtering air eliminator (11), a gas-liquid Coriolis mass flowmeter (12), a first ball valve (5), a second check valve (19), a pressure sensor (14) and an outlet connecting flange (15) are sequentially arranged on the main pipeline (2) from the left end to the right end of the main pipeline;
still install by-pass line (3) through support two (9) on base (7), and the one end of by-pass line (3) is passed through connecting pipe (18) and is connected with trunk line (2) between ball valve two (10) and inlet flange (1), the other end of by-pass line (3) is passed through connecting pipe (18) and is connected with trunk line (2) between second check valve (19) and outlet flange (15), be equipped with ball valve three (20) and first check valve (13) from left to right in proper order on by-pass line (3), and the top of filtering and air eliminator (11) is passed through trachea way (4) and is linked together with by-pass line (3).
2. The oil and water wellhead metering device of claim 1, wherein: still be connected with constant pressure valve pipeline (6) on trunk line (2) between inlet flange (1) and ball valve two (10), the other end and the by pass line (3) between ball valve three (20) and first check valve (13) of constant pressure valve pipeline (6) are connected, install constant pressure valve (17) on the constant pressure valve pipeline (6).
3. The oil and water wellhead metering device of claim 2, wherein: the two ends of the gas-liquid Coriolis flowmeter are respectively communicated with a main pipeline (2) through adapter flanges (201), an arched measuring pipe (203) is connected between the two adapter flanges (201) through a shunt body (202), and a detection component (204) and a driving component (205) are installed on the measuring pipe (203).
4. A wellhead metering device for oil and water as claimed in claim 3, wherein: and a sampling valve (16) is arranged on the main pipeline (2) between the filtering air eliminator (11) and the gas-liquid Coriolis mass flowmeter (12).
5. A wellhead metering device for oil and water according to any one of claims 1 to 4, characterized in that: and the first support (8) and the second support (9) are vertically welded with the upper surface of the base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122015199.3U CN215860130U (en) | 2021-08-25 | 2021-08-25 | Oil-water well mouth metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122015199.3U CN215860130U (en) | 2021-08-25 | 2021-08-25 | Oil-water well mouth metering device |
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| CN215860130U true CN215860130U (en) | 2022-02-18 |
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| CN202122015199.3U Active CN215860130U (en) | 2021-08-25 | 2021-08-25 | Oil-water well mouth metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045214A (en) * | 2023-04-03 | 2023-05-02 | 南京荣晟自动化设备有限公司 | Tank wagon metering unloading pry and use method thereof |
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2021
- 2021-08-25 CN CN202122015199.3U patent/CN215860130U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045214A (en) * | 2023-04-03 | 2023-05-02 | 南京荣晟自动化设备有限公司 | Tank wagon metering unloading pry and use method thereof |
| CN116045214B (en) * | 2023-04-03 | 2023-06-02 | 南京荣晟自动化设备有限公司 | Tank wagon metering unloading pry and use method thereof |
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