CN207686706U - Single well metering device - Google Patents
Single well metering device Download PDFInfo
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- CN207686706U CN207686706U CN201721764966.8U CN201721764966U CN207686706U CN 207686706 U CN207686706 U CN 207686706U CN 201721764966 U CN201721764966 U CN 201721764966U CN 207686706 U CN207686706 U CN 207686706U
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- cavity
- metering device
- single well
- pipeline
- well metering
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- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000005303 weighing Methods 0.000 claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000004146 energy storage Methods 0.000 claims description 14
- 239000003345 natural gas Substances 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000006210 lotion Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 19
- 239000007789 gas Substances 0.000 description 12
- 239000011521 glass Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The application provides a single well metering device, includes: the piston is movably arranged in the metering tank, and the metering tank is divided into a first cavity and a second cavity which are mutually independent by the piston from top to bottom; an opening for liquid inlet is formed in the first cavity; the pressure balancing device is arranged on the side wall of the metering tank and is used for keeping the pressure in the first cavity and the pressure in the second cavity balanced; the weighing sensor is arranged in the second cavity; the weighing sensor is used for measuring the weight of the liquid in the first cavity; the pressure balancing device comprises a communicating pipeline, one end of the communicating pipeline is communicated with the upper part of the first cavity, and the other end of the communicating pipeline is communicated with the second cavity; a first outlet for discharging liquid is arranged on the first cavity, a liquid discharge pipeline is arranged in the first outlet, and a liquid discharge valve is arranged on the liquid discharge pipeline. The embodiment of the application provides a single-well metering device capable of improving metering accuracy.
Description
Technical field
This application involves technical field of petroleum extraction more particularly to a kind of single well metering devices.
Background technology
Single well metering device can be used for measuring the production fluid of oil well.
One-well metering is generally carried out using glass tube oil gauge device in the prior art.Specifically, glass tube oil gauge device packet
Include the glass tube being set on two phase separator side wall, the upper and lower ends of the glass tube respectively with the top of two phase separator and bottom
Portion is connected, and forms linker.Head of liquid is transmitted to by water packet in glass tube inside two phase separator, makes two heads of liquid
Balance records so as to according to water-column in glass tube, calculate fluid column lifting height in two phase separator in glass tube
The time required to water column lifting height, then fluid column weight in separator can be calculated, you can find out the well daily output.But due to viscous crude
Oil gas it is relatively low, gas production is few, to which the air pressure in two phase separator is relatively low.Such two phase separator and the gas in glass tube
Press pressure difference variation smaller.Height change so as to cause water column in glass tube is smaller, to affect fluid column in metering separator
The accuracy of weight.
Utility model content
In view of this, the application embodiment provides a kind of single well metering device that can improve metering accuracy.
To achieve the above object, this application provides the following technical solutions：A kind of single well metering device, including：Metering
Tank is movably disposed within piston in the measuring tank, and the measuring tank is separated into independently of each other by the piston from top to bottom
The first cavity and the second cavity；The opening for feed liquor is provided on first cavity；Pressure equaliser, the pressure
Balancing device is set on the side wall of the measuring tank, and the pressure equaliser is for making first cavity and described second
Pressure in cavity keeps balance；Weighing sensor, the weighing sensor are set in second cavity；The biography of weighing
Sensor is used to measure the weight of the liquid in first cavity.
As a preferred embodiment, the pressure equaliser includes connecting pipeline, the one of the connecting pipeline
End is connected with the top of first cavity, and the other end of the connecting pipeline is connected with second cavity.
As a preferred embodiment, being provided with unicom valve on the connecting pipeline.
As a preferred embodiment, the first outlet for drain is provided on first cavity, described
It is provided with tapping line in one outlet, draining valve is provided on the tapping line.
As a preferred embodiment, the second outlet for exhaust is provided on first cavity, described
It is provided with exhaust line in two outlets, the exhaust line is connected with the tapping line；It is also set up on the exhaust line
There are constant pressure valve and flowmeter.
As a preferred embodiment, the constant pressure valve is located at the upstream of the flowmeter.
As a preferred embodiment, it includes：Energy storage tank, the energy storage tank are connected with first cavity,
The natural gas of predetermined pressure is stored in the energy storage tank.
As a preferred embodiment, being provided with wash liquor inlet on second cavity, set in the wash liquor inlet
It is equipped with cleaning pipeline, there are the cleaning pipeline opposite facing both ends, one end of the cleaning pipeline to pass through the wash liquor inlet
It stretches into second cavity, the other end of the cleaning pipeline is connected with cleaning pump, is provided on the cleaning pipeline clear
Tank valve.
As a preferred embodiment, being provided with waste collection pipeline on second cavity.
As a preferred embodiment, being provided with feed liquor pipeline in the opening, it is provided on the feed liquor pipeline
Liquid flowing valve.
As a preferred embodiment, being provided with liquid level gauge on first cavity, the liquid level gauge is for measuring
The height of liquid level in first cavity.
By above technical solution, the single well metering device described in the application embodiment is filled by the way that pressure balance is arranged
Setting can make the pressure in the first cavity and the second cavity keep balance, be acted on so as to avoid the pressure of the gas in the first cavity
In on liquid, cause the weight measured by weighing sensor be more than the first cavity in liquid weight the case where, so ensure
The metering accuracy of single well metering device described in the application embodiment.Due to the individual well meter described in the application embodiment
Amount device carries out weighing weight using weighing sensor, so needing to observe the water column in glass tube in compared with the existing technology
The method of liquid level can improve the accuracy of metering.Therefore the application embodiment, which provides, a kind of can improve metering accuracy
Single well metering device.
Description of the drawings
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, the shape and proportional sizes etc. of each component in figure are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the single well metering device of the application embodiment.
Specific implementation mode
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by, it is clear that described embodiment is only a part of embodiment of the application, rather than whole realities
Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall in the protection scope of this application.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
Referring to Fig. 1, a kind of single well metering device that present embodiment is provided, including：Measuring tank 11, the measuring tank
Piston 13 is movably disposed in 11, the measuring tank 11 is separated into mutually independent first by the piston 13 from top to bottom
Cavity 15 and the second cavity 17；The opening 19 for feed liquor is provided on first cavity 15；Pressure equaliser 53, it is described
Pressure equaliser 53 is set on the side wall of the measuring tank 11, and the pressure equaliser 53 is for making first cavity
15 and second cavity 17 in pressure keep balance；Weighing sensor 51, the weighing sensor 51 are set to described
In two cavitys 17；The weighing sensor 51 is used to measure the weight of the liquid in first cavity 15.
In use, first opening liquid flowing valve 41, unicom valve 49, and draining valve 43 is closed.To liquid (tool
It is body production fluid) enter in measuring tank 11, piston 13 moves down and weighing sensor 51 under the action of the gravity of liquid
It offsets, so that weighing sensor 51 can measure the total weight of the liquid and piston 13 in the first cavity 15, and then obtains the
The weight of liquid in one cavity 15.Since unicom valve 49 is opened, so connecting pipeline can make the first cavity 15 and the second chamber
Pressure in body 17 keeps balance, to which 51 energy precise of weighing sensor goes out the weight of the liquid in the first cavity 15.
It is filled by the single well metering device described in the application embodiment it can be seen from above scheme by the way that pressure balance is arranged
Setting 53 can make the pressure in the first cavity 15 and the second cavity 17 keep balance, so as to avoid the gas in the first cavity 15
Pressure acts on liquid, causes the feelings of the weight for the liquid that weight measured by weighing sensor 51 is more than in the first cavity 15
Condition so ensure that the metering accuracy of the single well metering device described in the application embodiment.Due to the application embodiment
The single well metering device carries out weighing weight using weighing sensor 51, so needing to observe glass in compared with the existing technology
The method of the liquid level of water column in glass pipe can improve the accuracy of metering.
As shown in Figure 1, in the present embodiment, measuring tank 11 can be in hollow cylinder, with scheduled internal diameter.
The side wall that measuring tank 11 has opposite roof and bottom wall and is disposed around between roof and bottom wall.In measuring tank 11 movably
It is provided with piston 13.The inner wall sealing of the piston 13 and measuring tank 11 coordinates.Specifically, sealing ring, such as O-ring may be used
Sealing cooperation.Measuring tank 11 is separated into 15 and second cavity 17 of mutually independent first cavity by piston 13 from top to bottom.To
Liquid in first cavity 15 may not flow into the second cavity 17, to ensure that the accuracy of the measurement of weighing sensor 51.The work
Plug 13 can be plate-like.Certainly, the concrete form of the piston 13 can also be other forms, and the application does not make specific herein
Regulation.The opening 19 for feed liquor is provided on first cavity 15.Specifically, which is set to the roof of measuring tank 11
On.So as to which production fluid is input in the first cavity 15 by the opening 19.
In the present embodiment, pressure equaliser 53 is set on the side wall of measuring tank 11, and pressure equaliser 53 is used
Balance is kept in making the pressure in the first cavity 15 and the second cavity 17.So as to avoid the pressure of the gas in the first cavity 15
The case where acting on liquid, causing the weight for the liquid that weight measured by weighing sensor 51 is more than in the first cavity 15,
It so ensure that the metering accuracy of the single well metering device described in the application embodiment.
In a specific embodiment, pressure equaliser 53 includes connecting pipeline, one end of connecting pipeline and the
One cavity 15 is connected, and the other end of connecting pipeline is connected with the second cavity 17.To which the gas in the first cavity 15 can lead to
It crosses connecting pipeline and enters the second cavity 17.And the second gas in cavity 17 can enter the first cavity 15 by connecting pipeline.Tool
Body, is provided with two axially-spaced trepannings on the side wall of measuring tank 11, two trepannings respectively with the first cavity 15 and
Second cavity 17 is connected.The both ends of connecting pipeline are arranged in respectively in two trepannings, and are sealed and coordinated with trepanning.Preferably,
Unicom valve 49 is provided on connecting pipeline.So as to control the first cavity 15 and the second cavity 17 by unicom valve 49
Connection.
In the present embodiment, weighing sensor 51 is set in the second cavity 17.To which production fluid enters the first cavity
In 15 so that after piston 13 moves down, piston 13 can offset with weighing sensor 51, and such weighing sensor 51 can measure
The weight of liquid in one cavity 15.Preferably, weighing sensor 51 is located at the center of the second cavity 17.It is so avoided that and weighs
Sensor 51 is offset to a position and influences the accuracy measured.
In one embodiment, the first outlet 21 for drain is provided on the first cavity 15, in first outlet 21
It is provided with tapping line 33, draining valve 43 is provided on tapping line 33.To which drain can be passed through after one-shot measurement
Production fluid in gauge line is discharged pipeline 33, to carry out measurement next time.Specifically, first outlet 21 is set to measuring tank
Top on 11 side wall and positioned at piston 13.To be flowed out from first outlet 21 after production fluid flows downward.Drain pipe
Line 33 is arranged in first outlet 21, and tapping line 33 coordinates with the sealing of first outlet 21.
In one embodiment, the second outlet 23 for exhaust is provided on the first cavity 15, in second outlet 23
It is provided with exhaust line 35, exhaust line 35 is connected with tapping line 33；45 He of constant pressure valve is additionally provided on exhaust line 35
Flowmeter 61.So as to measure the content of the natural gas in production fluid by flowmeter 61.The constant pressure valve 45 can be used for
Pressure is opened when reaching setting value.Specifically, second outlet 23 is set on the roof of measuring tank 11.Due to the difference of sealing,
The big liquid of density in production fluid is under gravity to the lower flow of measuring tank 11, and the smaller natural gas of density is to meter
The upper flow of measuring tank 11, to which natural gas can be discharged from second outlet 23.The flowmeter 61 can be gas flowmeter 61.Row
One end of gas pipeline 35 is arranged in second outlet 23, and is sealed and coordinated with second outlet 23.The other end of exhaust line 35 with
Tapping line 33 is connected.
Preferably, constant pressure valve 45 is located at the upstream of flowmeter 61.So when the pressure of the natural gas in measuring tank 11 reaches
Constant pressure valve 45 is opened when setting value, and natural gas enters tapping line 33 after the metering of flowmeter 61.
In one embodiment, energy storage tank 55 is connected with the first cavity 15, and predetermined pressure is stored in energy storage tank 55
Natural gas.The natural gas of the predetermined pressure can be used for flowing into measuring tank 11, for promoting the production fluid in measuring tank 11
Discharge.The predetermined pressure can be set as needed, not provided to this application.Specifically, which can
With in hollow tubular.The energy storage tank 55 includes opposite upper wall surface and lower wall surface and is disposed around between upper wall surface and lower wall surface
Peripheral wall surfaces.It is provided with first through hole on the upper wall surface of the energy storage tank 55.The second through-hole is provided on the roof of measuring tank 11, it should
First through hole is connected with the second through-hole by connecting pipeline.Further, it is provided with pressure gauge 57 on the energy storage tank 55.
In one embodiment, it is provided with wash liquor inlet 25 on the second cavity 17, cleaning is provided in wash liquor inlet 25
There are opposite facing both ends, one end of cleaning pipeline 37 to stretch into the second cavity by wash liquor inlet 25 for pipeline 37, cleaning pipeline 37
In 17, the other end of cleaning pipeline 37 is connected with cleaning pump 59, cleans on pipeline 37 and is provided with clear tank valve 47.Specifically,
Wash liquor inlet 25 is set on the bottom wall of measuring tank 11.
In one embodiment, it is provided with waste collection pipeline 39 on the second cavity 17.Specifically, wash liquor inlet 25 is set
It is placed on the bottom wall of measuring tank 11 and is provided with waste liquid outlet 27, waste collection pipeline 39 is arranged in waste liquid outlet 27.
Preferably, it is provided with feed liquor pipeline 31 in opening 19, liquid flowing valve 41 is provided on feed liquor pipeline 31.So as to
Production fluid is passed through in 19 the first cavity 15 of input of opening by feed liquor pipeline 31.Specifically, which is set to measuring tank
On 11 roof.
In one embodiment, liquid level gauge 29 is provided on the first cavity 15, liquid level gauge 29 is for measuring the first cavity
The height of liquid level in 15.So as to calculate the volume of production fluid by the liquid level, can so obtain in production fluid
Water content.Specifically, liquid level gauge 29 is located on the roof of measuring tank 11.
Single well metering device described in the application embodiment use process is as follows：
1. measurement flow
It is first turned on liquid flowing valve 41, unicom valve 49, and draining valve 43 is closed.Production fluid enters measuring tank 11
In, liquid level rises.When production fluid is more, liquid level gauge 29 and weighing sensor 51 can be spaced detection once to schedule
Liquid level and weight., can be when liquid level reach predetermined altitude when production fluid is less, weighing sensor 51 measures weight.This
Measurement terminates, and opens draining valve 43, starts that flow is discharged.
2. flow is discharged
Measuring tank 11 is connected with energy storage tank 55.When production fluid is discharged, with the reduction of liquid level, the increasing of the gas compartment
Greatly, the pressure in measuring tank 11 is smaller and smaller.Due to storing the natural gas of predetermined pressure in energy storage tank 55, so energy storage tank 55
In natural gas enter in measuring tank 11 and supplement, to ensure the normal discharge of production fluid.
3. gas metering flow
If surveyed oil well natural gas content is higher, as liquid level increases and the precipitation of natural gas when metering, measuring tank 11 is pressed
Power is increasing.It is opened when the pressure difference at 45 both ends of constant pressure valve on exhaust line 35 is more than setting value, natural gas is through flowmeter
Enter tapping line 33 after 61 meterings.
4. clear tank flow
When clear tank, liquid flowing valve 41 and draining valve 43 are closed, clear tank valve 47 is opened.Start cleaning pump 59 to measuring tank
Hot water is injected in 11, is pushed 13 uplink of piston, is cleaned out the greasy dirt etc. being attached on 11 inner wall of measuring tank using piston 13,
And it is discharged through tapping line 33 with production fluid.Cleaning pump 59 is closed after cleaning, 13 downlink of piston is reset to clear tank when initial position
Terminate.
It should be noted that in the description of the present application, term " first ", " second " etc. are used for description purposes only and distinguish
Between the two and sequencing is not present in similar object, can not be interpreted as indicating or implying relative importance.In addition,
In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part for theme.
Claims (11)
1. a kind of single well metering device, which is characterized in that including：
Measuring tank is movably disposed within piston in the measuring tank, and the measuring tank is separated by the piston from top to bottom
Mutually independent first cavity and the second cavity；The opening for feed liquor is provided on first cavity；
Pressure equaliser, the pressure equaliser are set on the side wall of the measuring tank, and the pressure equaliser is used
Balance is kept in making the pressure in first cavity and second cavity；
Weighing sensor, the weighing sensor are set in second cavity；The weighing sensor is described for measuring
The weight of liquid in first cavity.
2. single well metering device according to claim 1, it is characterised in that：The pressure equaliser includes communicating pipe
Road, one end of the connecting pipeline are connected with the top of first cavity, the other end of the connecting pipeline and described the
Two cavitys are connected.
3. single well metering device according to claim 2, it is characterised in that：It is provided with coupling cock on the connecting pipeline
Door.
4. single well metering device according to claim 1, it is characterised in that：It is provided with for drain on first cavity
First outlet, be provided with tapping line in the first outlet, draining valve be provided on the tapping line.
5. single well metering device according to claim 4, it is characterised in that：It is provided on first cavity for being vented
Second outlet, be provided with exhaust line in the second outlet, the exhaust line is connected with the tapping line；It is described
Constant pressure valve and flowmeter are additionally provided on exhaust line.
6. single well metering device according to claim 5, it is characterised in that：The constant pressure valve is located at the upper of the flowmeter
Trip.
7. single well metering device according to claim 1, which is characterized in that it includes：Energy storage tank, the energy storage tank and institute
It states the first cavity to be connected, the natural gas of predetermined pressure is stored in the energy storage tank.
8. single well metering device according to claim 1, it is characterised in that：Washing lotion is provided on second cavity to enter
Mouthful, cleaning pipeline is provided in the wash liquor inlet, the cleaning pipeline has opposite facing both ends, described to clean the one of pipeline
End is stretched by the wash liquor inlet in second cavity, and the other end of the cleaning pipeline is connected with cleaning pump, described
It is provided with clear tank valve on cleaning pipeline.
9. single well metering device according to claim 1, it is characterised in that：It is provided with waste collection on second cavity
Pipeline.
10. single well metering device according to claim 1, it is characterised in that：Feed liquor pipeline, institute are provided in the opening
It states and is provided with liquid flowing valve on feed liquor pipeline.
11. single well metering device according to claim 1, it is characterised in that：It is provided with liquid level gauge on first cavity,
The liquid level gauge is used to measure the height of the liquid level in first cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721764966.8U CN207686706U (en) | 2017-12-18 | 2017-12-18 | Single well metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721764966.8U CN207686706U (en) | 2017-12-18 | 2017-12-18 | Single well metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686706U true CN207686706U (en) | 2018-08-03 |
Family
ID=62997743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721764966.8U Active CN207686706U (en) | 2017-12-18 | 2017-12-18 | Single well metering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207686706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295886A (en) * | 2019-08-05 | 2019-10-01 | 辽宁瑞邦石油技术发展有限公司 | A kind of oil well electromagnetism weighing intelligent gauge |
-
2017
- 2017-12-18 CN CN201721764966.8U patent/CN207686706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295886A (en) * | 2019-08-05 | 2019-10-01 | 辽宁瑞邦石油技术发展有限公司 | A kind of oil well electromagnetism weighing intelligent gauge |
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