CN108387292A - Gas well three phase metering separation control system and oil-water interfaces metering method - Google Patents
Gas well three phase metering separation control system and oil-water interfaces metering method Download PDFInfo
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- CN108387292A CN108387292A CN201810344272.1A CN201810344272A CN108387292A CN 108387292 A CN108387292 A CN 108387292A CN 201810344272 A CN201810344272 A CN 201810344272A CN 108387292 A CN108387292 A CN 108387292A
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- hydroecium
- tank body
- gas
- oil
- separation
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
Abstract
An embodiment of the present invention provides a kind of gas well three phase metering separation control system and oil-water interfaces metering method, gas well three phase metering separation control system therein, including closed tank body, tank body is horizontal positioned, including：Feed inlet, for material to be fed in tank body；Separation chamber is located in tank body；Grease chamber is located in tank body, and grease chamber is connected to the top of separation chamber, is separated grease chamber and separation chamber by first partition, and first liquid level gauge is equipped in grease chamber, and grease chamber is equipped with oil outlet；Hydroecium is located in tank body, and hydroecium is connected to the bottom of separation chamber, and second liquid level gauge is equipped in hydroecium, and hydroecium is equipped with water outlet；Gas outlet is arranged at the top of tank body；Gas outlet is connect with gas circuit switch control unit.The present invention is additionally arranged oil, water measuring room, and reach oil-water-gas three-phase separation, metering gas well gas production, oil production, water yield by the natural contral of oil-water interfaces in separator by the appropriate adjustment of container inner structure.
Description
Technical field
The present invention relates to natural gases to detach processing technique field, detaches and controls more particularly to a kind of gas well three phase metering
System and oil-water interfaces metering method.
Background technology
Each testing and control project that the prior art is measured for the liquid level of gas well is designed for ideal operating mode, when
When operating mode changes, TT＆C system will just be difficult to realize accurate metering or can not achieve metering.
Invention content
In view of techniques discussed above problem, an embodiment of the present invention provides a kind of gas well three phase metering separation control systems
And oil-water interfaces metering method, when solving the operating mode of gas well and changing, TT＆C system will just be difficult to realize accurate metering
Or the technical issues of can not achieve metering.
Gas well three phase metering separation control system, including closed tank body (10), the tank body (10) is horizontal positioned, packet
It includes：
Feed inlet (11), for material to be fed in the tank body (10)；
Separation chamber (12) is located in the tank body (10)；
Grease chamber (13) is located in the tank body, and the grease chamber is connected to the top of the separation chamber, by first every
Plate (14) separates the grease chamber and the separation chamber, and first liquid level gauge (131) is equipped in the grease chamber, and the grease chamber is equipped with
Oil outlet (132)；
Hydroecium (15) is located in the tank body, and the hydroecium is connected to the bottom of the separation chamber, is equipped in the hydroecium
Second liquid level gauge (151), the hydroecium are equipped with water outlet (152)；
Gas outlet (17), is arranged at the top of the tank body；The gas outlet is connect with gas circuit switch control unit.
Wherein first liquid level gauge (131) can measure the liquid level for obtaining grease chamber, and obtain oil according to the time of record
The raised rate of liquid level of room, measures oil by volume Time Method, raised according to the liquid level of grease chamber and liquid level
Rate carries out control to the oil outlet (132) of grease chamber and opens or closes；
Second liquid level gauge (151) can measure the liquid level for obtaining hydroecium, and obtain hydroecium according to the time of record
The raised rate of liquid level, measures water by volume Time Method, according to the liquid level of hydroecium and the raised rate of liquid level,
Control is carried out to the water outlet (152) of hydroecium to open or close.
It is separated by second partition (16) between the grease chamber and the hydroecium, and the height of the second partition is big
In the height of the first partition.
Retention gap between the second partition and the roof of the tank body (10), and the second partition is by upper spacer
(161) it is docked with lower clapboard (162), the upper spacer is connect by dismountable mode with lower clapboard.
The hydroecium is connected to by a communicating pipe (153) with the separation chamber.
The hydroecium is separated into the first hydroecium (155) and the second hydroecium (156) by third partition board (18), wherein described
Communicating pipe is connected to first hydroecium, and the second liquid level gauge is arranged in second hydroecium, and first hydroecium is located at
The end of the tank body, the communicating pipe is connected to across second hydroecium with first hydroecium, and the third partition board
Height be less than the first partition height.
It is additionally provided at the feed inlet into port separation apparatus (19), for material to be carried out gas-liquid separation, and it is described
Feed inlet is located at the top or top of the tank body.
Manhole (191), drain (192), relief valve port (193) are additionally provided at the top of the tank body.
The gas outlet is arranged far from the feed inlet.
The gas circuit switch control unit, including
Switching three-way valve (20), is arranged on the pipeline being connected to the gas outlet；
First flowmeter (21) is connected to a branch of the triple valve；
Second flowmeter (22) is connected to another branch of the triple valve；
Wherein, the range of the first flowmeter is more than the range of the second flowmeter.
Oil-water interfaces metering method, including：
Equivalent water level is measured by hydroecium；
The mixing liquid level of oil mixing with water body is measured by grease chamber；
Oil-water interfaces height is calculated according to equivalent water level, mixing liquid level；
Switching output gas circuit is controlled according to gas production.
A kind of gas well three phase metering separation control system and oil-water interfaces metering method provided in an embodiment of the present invention, pass through
The appropriate adjustment of container inner structure is additionally arranged oil, water measuring room, and switches different ranges according to gas pressure size in tank body
Flowmeter carry out gas dosing, with the specific different height of the density contrast of oil/water and oil/water measuring room, (overflow is entered the room height
Degree), to the high-level implementations of oil-water interfaces in horizontal separator natural contral, conventional oil-water interface control circuit is eliminated,
And control stability is high；Measures range and measuring accuracy and confidence level are improved, metering system becomes simply, therefore reliable,
And reduce cost.
Description of the drawings
From below in conjunction with the accompanying drawings to the present invention specific implementation mode description in the present invention may be better understood,
In：
By reading referring to the drawings to being described in detail made by non-limiting embodiment, other feature of the invention,
Objects and advantages will become more apparent upon, wherein same or analogous reference numeral indicates same or analogous feature.
Fig. 1 is the structural schematic diagram for the gas well three phase metering separation control system that one embodiment of the invention provides.
Fig. 2 is the schematic diagram for the gas well three phase metering separation control system that one embodiment of the invention provides.
Specific implementation mode
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, it is proposed that many details, in order to provide complete understanding of the present invention.But to those skilled in the art
It will be apparent that the present invention can be implemented in the case of some details in not needing these details.Below to implementing
The description of example is just for the sake of by showing that the example of the present invention is better understood from the present invention to provide.The present invention never limits
In any concrete configuration set forth below and algorithm, but cover under the premise of without departing from the spirit of the present invention element,
Any modification, replacement and the improvement of component and algorithm.In the following description, well known structure and technology is not shown, so as to
It avoids causing the present invention unnecessary fuzzy.
Example embodiment is described referring now to ground, example embodiment can be implemented in a variety of forms, and should not be by
It is considered limited to embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention more comprehensively and completely, and will
The design of example embodiment is comprehensively communicated to those skilled in the art.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In example.In the following description, many details are provided to fully understand the embodiment of the present invention to provide.However,
It will be appreciated by persons skilled in the art that technical scheme of the present invention can be put into practice without one in the specific detail or more
It is more, or other methods, constituent element, material may be used etc..In other cases, be not shown in detail or describe known features,
Material or operation to avoid the fuzzy present invention major technique intention.
As shown in Figs. 1-2, gas well three phase metering separation control system, including closed tank body 10, the tank body 10 are horizontal
It places, tank body 10 includes：
Feed inlet 11, for material to be fed in the tank body 10；
Separation chamber 12 is located in the tank body 10, which communicates, and feed inlet 11 is made to enter tank
Material in body 10 can enter in separation chamber 12, with to material carry out oil and gas and water from；
Grease chamber 13 is located in the tank body, and the grease chamber 13 is connected to the top of the separation chamber 12, passes through first
Partition board 14 separates the grease chamber and the separation chamber, and the effect of first partition 14 is the effect of overflow plate, when separation chamber 12
When the liquid level of internal oil mixing with water liquid is more than the height of first partition 14, oil above will pass through first partition 14
Top be flowed into grease chamber 13, and the grease chamber in be equipped with first liquid level gauge 131, first liquid level gauge 131 can be passed through at this time
The oily liquid level of detection；The grease chamber is equipped with oil outlet 132, which is arranged in the lower part or bottom of grease chamber 13, from
And ensures the fluid after separation and be discharged by oil outlet 132；
Hydroecium 15 is located in the tank body, and the hydroecium 15 is connected to the bottom of the separation chamber 12, the bottom of separation chamber 12
Portion is water layer, by the principle of linker it is found that the water inside separation chamber 12 can enter in hydroecium 15, and the liquid of hydroecium 15
The hydraulic pressure that position height is formed is equal with the hydraulic pressure that the liquid level of the oil mixing with water liquid of separation chamber 12 is formed, but due to separation
Room 12 is oil mixing with water liquid, so the liquid level of the oil mixing with water liquid of separation chamber 12 and the height of water level inside hydroecium 15
Between tool there are one difference in height, so as to according to two height and difference in height between the two and combine oil density and
The height of oil-water separation interface is calculated in the parameters such as the density of water, and second liquid level gauge 151, the water are equipped in the hydroecium 15
Room is equipped with water outlet 152；
Gas outlet 17 is arranged at the top of the tank body 10, for the gas discharge after detaching.
Corresponding instrument and instrument are additionally provided on tank body 10, to detect three kinds of substances of oil-water-gas inside tank body 10
Relevant parameter.
It is separated by second partition 16 between the grease chamber 13 and the hydroecium 15, and the height of the second partition
More than the height of the first partition；Second partition 16 also corresponds to the effect of overflow plate, and second partition 16 can also stop gas
Body so that remaining oil does not enter hydroecium as possible in gas, but the height of second partition 16 is much larger than the height of first partition,
It is entered in hydroecium 15 to avoid the fluid in grease chamber 13 from crossing second partition 16.
Retention gap between the second partition and the roof of the tank body 10, and the second partition is by upper spacer
161 and lower clapboard 162 dock, the upper spacer is connect by dismountable mode with lower clapboard；Using removably connecting
Mode is connect, the installation and maintenance of equipment can be facilitated, especially to the installation of hydroecium and maintenance.
The hydroecium is connected to by a communicating pipe 153 with the separation chamber；Communicating pipe 153 can be L as shown in Figure 1
Shape pipe can also be U-tube or the pipe of other shapes, need the nozzle for ensureing communicating pipe 153 and the bottom of separation chamber 12
Water layer is connected to, and the maximum height of communicating pipe is generally not more than the height of first partition 14, so that it is guaranteed that in separation chamber 12
The water of water layer can be entered by communicating pipe 153 in hydroecium 15.
The hydroecium is separated into the first hydroecium 155 and the second hydroecium 156 by third partition board 18, wherein the communicating pipe
It is connected to first hydroecium, the second liquid level gauge is arranged in second hydroecium, and first hydroecium is located at the tank
The end of body, the communicating pipe is connected to across second hydroecium with first hydroecium, and the height of the third partition board
Less than the height of the first partition.
It is additionally provided at the feed inlet 11 into port separation apparatus 19, for material to be carried out gas-liquid separation, and it is described
Feed inlet is located at the top or top of the tank body.
Manhole 191, drain 192, relief valve port 193 are additionally provided at the top of the tank body.
The gas outlet 17 is arranged far from the feed inlet 11.
The gas circuit switch control unit, including
Switching three-way valve 20 is arranged on the pipeline being connected to the gas outlet；
First flowmeter 21 is connected to a branch of the triple valve；
Second flowmeter 22 is connected to another branch of the triple valve；
Wherein, the range of the first flowmeter is more than the range of the second flowmeter.
The break-make that two branches are controlled by switching three-way valve 20, so as to further pass through the flow of different ranges
Meter realizes the control to gas output
Invention additionally discloses a kind of oil-water interfaces metering methods, including：
Height (equivalent water level) H water of third partition board (hydroecium overflow plate) 18 '；
Height (mixing liquid level) H of first partition (grease chamber overflow plate) 14；
Oil-water interfaces height is calculated according to the density p water of the density p of equivalent water level, mixing liquid level and oil oil and water
Spend H water.
Such as it can be according to formula fitting：
ρ water gH water '=ρ oil gH oil+ρ water gH water；
And height H oil=H-H water of oil reservoir；
H water=(ρ water H water '-ρ oil gH)/(ρ water-ρ oil) is acquired after substituting into.
Matching is realized by the branch of switching three-way valve according to the gas pressure size of detection tank interior.
A kind of gas well three phase metering separation control system and oil-water interfaces metering method provided in an embodiment of the present invention, pass through
The appropriate adjustment of container inner structure is additionally arranged oil, water measuring room, and switches different ranges according to gas pressure size in tank body
Flowmeter carry out gas dosing, entered the room height with the specific different height overflow of the density contrast of oil/water and oil/water measuring room
Degree eliminates conventional oil-water interface control circuit to the high-level implementations of oil-water interfaces in horizontal separator natural contral, and
Control stability is high；Measures range and measuring accuracy and confidence level are improved, metering system becomes simply, therefore reliable, and
Reduce cost.
Those skilled in the art will be understood that above-described embodiment is illustrative and not restrictive.In different embodiments
The different technologies feature of middle appearance can be combined, to obtain advantageous effect.Those skilled in the art research specification and
On the basis of claims, the embodiment of other variations of revealed embodiment is will be understood that and realized.In claim
In book, term " comprising " is not precluded from other devices or steps；Indefinite article "one" be not excluded for it is multiple；Term " first ", " the
Two " for indicating title not for any specific sequence of expression.
Claims (10)
1. gas well three phase metering separation control system, which is characterized in that including closed tank body (10), the tank body (10) is horizontal
It places, including：
Feed inlet (11), for material to be fed in the tank body (10)；
Separation chamber (12) is located in the tank body (10)；
Grease chamber (13) is located in the tank body, and the grease chamber is connected to the top of the separation chamber, passes through first partition
(14) grease chamber and the separation chamber are separated, first liquid level gauge (131) is equipped in the grease chamber, the grease chamber is equipped with out
Hydraulic fluid port (132)；
Hydroecium (15) is located in the tank body, and the hydroecium is connected to the bottom of the separation chamber, and second is equipped in the hydroecium
Liquid level gauge (151), the hydroecium are equipped with water outlet (152)；
Gas outlet (17), is arranged at the top of the tank body；The gas outlet is connect with gas circuit switch control unit (20).
2. gas well three phase metering separation control system as described in claim 1, which is characterized in that
It is separated by second partition (16) between the grease chamber and the hydroecium, and the height of the second partition is more than institute
State the height of first partition.
3. gas well three phase metering separation control system as described in claim 1, which is characterized in that
Retention gap between the second partition and the roof of the tank body (10), and the second partition is by upper spacer
(161) it is docked with lower clapboard (162), the upper spacer is connect by dismountable mode with lower clapboard.
4. gas well three phase metering separation control system as described in claim 1, which is characterized in that
The hydroecium is connected to by a communicating pipe (153) with the separation chamber.
5. gas well three phase metering separation control system as described in claim 1, which is characterized in that
The hydroecium is separated into the first hydroecium (155) and the second hydroecium (156) by third partition board (18), wherein the connection
Pipe is connected to first hydroecium, and the second liquid level gauge is arranged in second hydroecium, and first hydroecium is located at described
The end of tank body, the communicating pipe is connected to across second hydroecium with first hydroecium, and the height of the third partition board
Height of the degree less than the first partition.
6. gas well three phase metering separation control system as described in claim 1, which is characterized in that
It is additionally provided at the feed inlet into port separation apparatus (19), for material to be carried out gas-liquid separation, and the charging
Mouth is located at the top or top of the tank body.
7. gas well three phase metering separation control system as described in claim 1, which is characterized in that
Manhole (191), drain (192), relief valve port (193) are additionally provided at the top of the tank body.
8. gas well three phase metering separation control system as described in claim 1, which is characterized in that
The gas outlet is arranged far from the feed inlet.
9. gas well three phase metering separation control system as described in claim 1, which is characterized in that
The gas circuit switch control unit, including
Switching three-way valve (20), is arranged on the pipeline being connected to the gas outlet；
First flowmeter (21) is connected to a branch of the triple valve；
Second flowmeter (22) is connected to another branch of the triple valve；
Wherein, the range of the first flowmeter is more than the range of the second flowmeter.
10. oil-water interfaces metering method, which is characterized in that including：
Equivalent water level is measured by hydroecium；
The mixing liquid level of oil mixing with water body is measured by grease chamber；
Oil-water interfaces height is calculated according to equivalent water level, mixing liquid level；
Switching output gas circuit is controlled according to gas production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344272.1A CN108387292A (en) | 2018-04-17 | 2018-04-17 | Gas well three phase metering separation control system and oil-water interfaces metering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344272.1A CN108387292A (en) | 2018-04-17 | 2018-04-17 | Gas well three phase metering separation control system and oil-water interfaces metering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108387292A true CN108387292A (en) | 2018-08-10 |
Family
ID=63064918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810344272.1A Pending CN108387292A (en) | 2018-04-17 | 2018-04-17 | Gas well three phase metering separation control system and oil-water interfaces metering method |
Country Status (1)
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| CN (1) | CN108387292A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041652A (en) * | 2021-03-17 | 2021-06-29 | 中国海洋石油集团有限公司 | Oil-gas separator and pressure setting method thereof |
| CN116148126A (en) * | 2023-02-22 | 2023-05-23 | 浙江海牛海洋工程有限公司 | Device and method for continuously measuring density of each single phase of oil-gas-water multiphase flow mixture |
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| US20150135797A1 (en) * | 2013-11-20 | 2015-05-21 | Ypf Tecnologia S.A. | Device and method for multiphase flow meter calibration using a closed loop multiphase flow system |
| CN204646211U (en) * | 2015-05-20 | 2015-09-16 | 西安长庆科技工程有限责任公司 | Oil-water interfaces stablize gas reducing liquid three-phase separating device |
| CN204827385U (en) * | 2015-03-17 | 2015-12-02 | 中国石油化工股份有限公司 | Wide -range individual well oil gas metering device |
| CN208223595U (en) * | 2018-04-17 | 2018-12-11 | 克拉玛依市尚正石油科技有限公司 | Gas well three phase metering separation control system |
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2018
- 2018-04-17 CN CN201810344272.1A patent/CN108387292A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102600760A (en) * | 2012-04-20 | 2012-07-25 | 北京东旭宏业科技有限公司 | Electric dehydrating oil-water separator with constant liquid level |
| US20150135797A1 (en) * | 2013-11-20 | 2015-05-21 | Ypf Tecnologia S.A. | Device and method for multiphase flow meter calibration using a closed loop multiphase flow system |
| CN204827385U (en) * | 2015-03-17 | 2015-12-02 | 中国石油化工股份有限公司 | Wide -range individual well oil gas metering device |
| CN204646211U (en) * | 2015-05-20 | 2015-09-16 | 西安长庆科技工程有限责任公司 | Oil-water interfaces stablize gas reducing liquid three-phase separating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041652A (en) * | 2021-03-17 | 2021-06-29 | 中国海洋石油集团有限公司 | Oil-gas separator and pressure setting method thereof |
| CN116148126A (en) * | 2023-02-22 | 2023-05-23 | 浙江海牛海洋工程有限公司 | Device and method for continuously measuring density of each single phase of oil-gas-water multiphase flow mixture |
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