CN202483551U - Wellhead crude oil output metering device - Google Patents
Wellhead crude oil output metering device Download PDFInfo
- Publication number
- CN202483551U CN202483551U CN2012200259864U CN201220025986U CN202483551U CN 202483551 U CN202483551 U CN 202483551U CN 2012200259864 U CN2012200259864 U CN 2012200259864U CN 201220025986 U CN201220025986 U CN 201220025986U CN 202483551 U CN202483551 U CN 202483551U
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- Prior art keywords
- pressure difference
- difference transmitter
- crude oil
- transmitter
- oil output
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- Expired - Fee Related
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Abstract
The utility model discloses a wellhead crude oil output metering device, which comprises a liquid inlet through pipe and a liquid outlet through pipe connected with a U-shaped pipe, wherein the liquid inlet through pipe is provided with a check valve and a filter valve; a liquid inlet end of the U-shaped pipe is provided with a first pressure difference transmitter and a second pressure difference transmitter; a liquid outlet end of the U-shaped pipe is provided with a flow transmitter; the liquid outlet through pipe is provided with a third pressure difference transmitter and a fourth pressure difference transmitter; and a central processing unit is used for receiving a signal, calculating crude oil output and then displaying. According to the wellhead crude oil output metering device provided by the utility model, continuous accurate metering of output liquid of a producing well under a self-compression condition is realized, the problem of incapability of metering the oil well caused by associated gas of oil well output liquid is effectively solved, and the problem of inaccuracy in metering of a low-liquid-capacity and intermittent producing wheel is effectively solved.
Description
Technical field
The utility model belongs to the crude oil measurement device, relates to a kind of well head crude oil output metering device.
Background technology
At present, oil well production crude oil water containing real time dynamic measurement mainly is divided into dual mode, does not promptly separate metering and part separate measurement dual mode.Not separating method of measurement is software gauging and novel intelligent multi-phase flowmeter, and this method requires oil well production stable, and its measuring result error is bigger, and input cost is higher; And part separate measurement method adopts the gas-liquid separation method of measurement more; This method has a lot; On application principle, mainly contain metering room metering, tipping bucket metering, scale car, etc., require this measuring method of oil well be suitable for more oil well low moisture, continuously go out oil viscosity not high oil well.Be not suitable for high moisture, discontinuous fuel-displaced oil well.Therefore, exist the problem that crude oil can't real time dynamic measurement of producing for this part oil well.
The utility model content
The technical problem that the utility model solves is to provide a kind of well head crude oil output metering device, and fluid produced by oil production well, output gas have solved low liquid measure and the inaccurate problem of producing well metering at intermittence effectively in metering accurately continuously under press strip spare.
The utility model is to realize through following technical scheme:
A kind of well head crude oil output metering device; Comprise the feed liquor siphunculus and the fluid siphunculus that are connected with U type pipe; The feed liquor siphunculus is provided with ball-and-seat and strainer valve; Liquid feeding end at U type pipe is provided with first pressure difference transmitter and second pressure difference transmitter, is provided with flow transmitter at the outlet end of U type pipe, on the fluid siphunculus, is provided with the 3rd pressure difference transmitter and the 4th pressure difference transmitter;
First pressure difference transmitter and second pressure difference transmitter, the 3rd pressure difference transmitter and the 4th pressure difference transmitter, flow transmitter are transferred to CPU with detected signal, and CPU shows after calculating the crude oil output.
Described first pressure difference transmitter and second pressure difference transmitter are installed in the vertical pipeline section of U type pipe, and the 3rd pressure difference transmitter and the 4th pressure difference transmitter are installed on the horizontal pipeline section of fluid siphunculus.
Described first pressure difference transmitter and second pressure difference transmitter distance L apart equal the 3rd pressure difference transmitter and the 4th pressure difference transmitter distance L apart.
The vertical pipeline section of described U type pipe and the cross sectional shape of the horizontal pipeline section of fluid siphunculus, size are all identical.
The bottom of described U type pipe also is provided with atmospheric valve.
Described CPU also is transferred to remote display through connecting line with the crude oil output data and shows.
Compared with prior art, the utlity model has following beneficial technical effects:
The well head crude oil output metering device that the utility model provides through the design of U type pipe and horizontal fluid siphunculus, just can be realized the calculating of instantaneous production fluid amount of oil well and oil well cumulative liquid production again through two groups of pressure difference transmitters and flow transmitter; This apparatus structure is simple, the installation maintenance is convenient, continuous performance is good, accurate measurement provides reliable basis for the production dynamic management.Further, computer center carried out remote transmission through connecting line after, can also realize the data remote function.
The well head crude oil output metering device that the utility model provides; Realized that fluid produced by oil production well is in metering accurately continuously under press strip spare; Solve produced liquid in oil well effectively because of the unmeasurable problem of oil well that associated gas causes, solved low liquid measure and the inaccurate problem of producing well metering at intermittence effectively.
The well head crude oil output metering device that the utility model provides; Detect the fuel gauging of oilfield internal wet crude when showing that three grades of regulations that its certainty of measurement reaches petroleum industry standard SY/T 0004-98 " the oilfield collection fail design specifications " are measured in practice, its metering precision should be ± 5% with interior requirement.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the CPU of the utility model connects sketch map;
Wherein, 1-ball-and-seat, 2-strainer, 3-pressure difference transmitter, 4-flow transmitter, 5-atmospheric valve, 6-feed liquor siphunculus, 7-fluid siphunculus, 8-U type pipe.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done to describe in further detail, said is explanation rather than qualification to the utility model.
Referring to Fig. 1; A kind of well head crude oil output metering device; Comprise the feed liquor siphunculus that is connected with U type pipe 86 and fluid siphunculus 7, feed liquor siphunculus 6 is provided with ball-and-seat 1 and strainer valve 2, is provided with first pressure difference transmitter 3 and second pressure difference transmitter 3 at the liquid feeding end of U type pipe 8; Outlet end at U type pipe is provided with flow transmitter 4, on fluid siphunculus 7, is provided with the 3rd pressure difference transmitter 3 and the 4th pressure difference transmitter 3;
The length of concrete U type pipe is respectively 600mm * 300mm * 1500mm, and the range of pressure difference transmitter is that 0Pa～5kPa, accuracy class are 1 ‰; The range of flow instrument flow transmitter is that 0mm～14m3/D, accuracy class are 5 ‰;
Referring to Fig. 2, first pressure difference transmitter and second pressure difference transmitter, the 3rd pressure difference transmitter and the 4th pressure difference transmitter, flow transmitter are transferred to CPU with detected signal, and CPU shows after calculating the crude oil output.
Described CPU also is transferred to remote display through connecting line with the crude oil output data and shows.
The bottom of concrete U type pipe 8 also is provided with atmospheric valve 5; Atmospheric valve 5 is installed in U type pipe bottom, so that at the greasy dirt of when maintenance emptying U type pipe.
Concrete described first pressure difference transmitter and second pressure difference transmitter are installed in the vertical pipeline section of U type pipe 8, form perpendicular differential pressure transmitter group; The 3rd pressure difference transmitter and the 4th pressure difference transmitter are installed on the horizontal pipeline section of fluid siphunculus, form horizontal pressure difference transmitter group;
And first pressure difference transmitter and second pressure difference transmitter distance L apart equal the 3rd pressure difference transmitter and the 4th pressure difference transmitter distance L apart; The vertical pipeline section of U type pipe and the cross sectional shape of the horizontal pipeline section of fluid siphunculus, size are all identical.
Said apparatus and the metering of carrying out well head crude oil after feed line is connected; When wet crude is that oil water mixture enters into strainer from oil well, after accomplishing impurity screening, get in the U type pipe body through pipeline; At first calculate oil-water mixture density; After calculating instant productivity, calculate cumulative production again, concrete well head crude oil output method of measurement is:
1) with ball-and-seat with after feed line is connected; After well head output crude oil filters through strainer; Enter in the U type pipe; First pressure difference transmitter and second pressure difference transmitter detect the pressure differential deltap P of the interior vertical section of U pipe at a distance of L, are transferred to CPU then, and the flow transmitter of U type pipe outlet end setting detects the volume V of crude oil in the current U type pipeline; The 3rd pressure difference transmitter on the fluid siphunculus and the 4th pressure difference transmitter detect the pressure differential deltap P ' of the horizontal siphunculus section of fluid siphunculus at a distance of L, are transferred to CPU then;
2) CPU calculates the density γ of crude oil according to γ=(Δ P-Δ P ')/L;
Calculate the instantaneous production fluid amount of oil well Q then
T=γ * V calculates the oil well cumulative liquid production Q=γ * V * Δ T in the Δ T time at last.
The well head crude oil output metering device that the utility model provides; Realized that fluid produced by oil production well is in metering accurately continuously under press strip spare; Solve produced liquid in oil well effectively because of the unmeasurable problem of oil well that associated gas causes, solved low liquid measure and the inaccurate problem of producing well metering at intermittence effectively.
Claims (6)
1. well head crude oil output metering device; It is characterized in that; Comprise the feed liquor siphunculus and the fluid siphunculus that are connected with U type pipe, the feed liquor siphunculus is provided with ball-and-seat and strainer valve, is provided with first pressure difference transmitter and second pressure difference transmitter at the liquid feeding end of U type pipe; Outlet end at U type pipe is provided with flow transmitter, on the fluid siphunculus, is provided with the 3rd pressure difference transmitter and the 4th pressure difference transmitter;
First pressure difference transmitter and second pressure difference transmitter, the 3rd pressure difference transmitter and the 4th pressure difference transmitter, flow transmitter are transferred to CPU with detected signal, and CPU shows after calculating the crude oil output.
2. well head crude oil output metering device as claimed in claim 1; It is characterized in that; Described first pressure difference transmitter and second pressure difference transmitter are installed in the vertical pipeline section of U type pipe, and the 3rd pressure difference transmitter and the 4th pressure difference transmitter are installed on the horizontal pipeline section of fluid siphunculus.
3. according to claim 1 or claim 2 well head crude oil output metering device is characterized in that described first pressure difference transmitter and second pressure difference transmitter distance L apart equal the 3rd pressure difference transmitter and the 4th pressure difference transmitter distance L apart.
4. according to claim 1 or claim 2 well head crude oil output metering device is characterized in that, the vertical pipeline section of described U type pipe and the cross sectional shape of the horizontal pipeline section of fluid siphunculus, size are all identical.
5. well head crude oil output metering device as claimed in claim 1 is characterized in that the bottom of described U type pipe also is provided with atmospheric valve.
6. well head crude oil output metering device as claimed in claim 1 is characterized in that described CPU also is transferred to remote display through connecting line with the crude oil output data and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200259864U CN202483551U (en) | 2012-01-19 | 2012-01-19 | Wellhead crude oil output metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200259864U CN202483551U (en) | 2012-01-19 | 2012-01-19 | Wellhead crude oil output metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483551U true CN202483551U (en) | 2012-10-10 |
Family
ID=46957978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200259864U Expired - Fee Related CN202483551U (en) | 2012-01-19 | 2012-01-19 | Wellhead crude oil output metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587885A (en) * | 2012-01-19 | 2012-07-18 | 陕西星辰石油科技有限责任公司 | Device and method for metering crude oil output of wellhead |
-
2012
- 2012-01-19 CN CN2012200259864U patent/CN202483551U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587885A (en) * | 2012-01-19 | 2012-07-18 | 陕西星辰石油科技有限责任公司 | Device and method for metering crude oil output of wellhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140119 |