CN106988725A - Using the production wellhead fluid flow on-line measurement device of pulling force sensor - Google Patents
Using the production wellhead fluid flow on-line measurement device of pulling force sensor Download PDFInfo
- Publication number
- CN106988725A CN106988725A CN201710338833.2A CN201710338833A CN106988725A CN 106988725 A CN106988725 A CN 106988725A CN 201710338833 A CN201710338833 A CN 201710338833A CN 106988725 A CN106988725 A CN 106988725A
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- Prior art keywords
- magnetic valve
- oil
- measurement
- tank
- pulling force
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
Abstract
The invention discloses a kind of production wellhead fluid flow on-line measurement device of use pulling force sensor：Including measurement tank, Oil-gas Separation wheel rotor, oil inlet pipe, flowline, oil gas discharge pipe, pulling force sensor and tuning-fork type liquid-level switch sensor；Described device also includes the bypass duct in parallel with the oil inlet pipe, measurement tank, flowline being sequentially connected, and normally opened bypass magnetic valve is provided with bypass duct；Wherein, one end of oil inlet pipe is connected with measurement tank, and the other end is connected with the top of bypass duct；One end of flowline is penetrated in the tank body of measurement tank, and bypass duct end is communicated to after the normally opened oil-out magnetic valve of other end series connection；One end of oil gas discharge pipe is connected with measuring the top of tank, and the end of bypass duct is communicated to after the normally closed oil gas outlet magnetic valve of other end series connection；Tuning-fork type liquid-level switch sensor is arranged on measurement tank side；Pulling force sensor is connected to measurement abhiseca end by support；Structure of the present invention is simplified, measurement accuracy high, running stability and high efficiency.
Description
Technical field
The present invention relates to a kind of production wellhead manufacturing parameter detection device, more particularly to a kind of use pulling force sensor is adopted
Oil well mouthful fluid flow on-line measurement device.
Background technology
The well head oil flow quantity of current China oil pumper, mostly can not accurately measure, cause the production status of well head can not
Monitoring, also can not fuel-displaced how much according to the reality of well head, automatically controls production, reduction energy consumption.Therefore, how to well head fluid stream
Amount is monitored on-line, the important directions researched and developed as domestic project.
The well head oil flow quantity proposed domestic at present, which obtains scheme, is：Flow sensor direct measurement, calculated by indicator card,
Measurement apparatus based on weight method.
Conventional flow sensor can not accurately measure the flow of fluid because resulting fluid be multiphase flow fluid, have gas,
Oil, water and particle etc., common flow sensor can not accurately measure the flow of multiphase flow medium, therefore lead to not actual answer
With；Indicator card calculates that, due to being influenceed by different oil pumper models, different downhole parameters, the result calculated is often
Error is very big；Measurement apparatus based on weight method, because weighing sensor is influenceed by scene vibration, temperature, error is larger；
Existing scheme has the disadvantage that：1st, commonly using flow sensor can not Flow Rate Measurement in Multiphase；2nd, calculate that result is missed by indicator card
It is poor big；3rd, the measurement apparatus based on weight method, because weighing sensor is disturbed by site environment, error is big.
The content of the invention
Goal of the invention：The purpose of the present invention is to use pulling force sensor there is provided one kind the problem of presence based on prior art
Production wellhead fluid flow on-line measurement device.
Technical scheme：A kind of production wellhead fluid flow on-line measurement device of the present invention, including measurement tank, setting
In measurement tank in Oil-gas Separation wheel rotor, with measure tank connect oil inlet pipe, flowline, oil gas discharge pipe, located at measurement
The tuning-fork type liquid-level switch sensor of tank side and the pulling force sensor located at measurement tank top；The Oil-gas Separation wheel rotor
It is horizontally placed in measurement tank, the flowline is provided with normally opened oil-out magnetic valve, oil gas discharge pipe is discharged provided with normally closed oil gas
Mouth magnetic valve；The oil inlet pipe, measurement tank and flowline are in turn connected to form tie point, and the measurement apparatus also includes and this
Tie point bypass duct in parallel, is provided with normally opened bypass magnetic valve on the bypass duct；Wherein, one end of oil inlet pipe with
The connection of tank top is measured, the other end is connected with the top of bypass duct；One end of flowline penetrate measurement tank tank body in and to
Under extend to the bottom of measurement tank, the other end, which is connected, is communicated to the end of bypass duct after normally opened oil-out magnetic valve；Oil gas is arranged
One end of outlet pipe is connected with measuring the top of tank, and bypass duct is also communicated to after the normally closed oil gas outlet magnetic valve of other end series connection
End；One end of oil gas discharge pipe is connected with measuring the top of tank, and the other end is connected after normally closed oil gas outlet magnetic valve
It is communicated to the end of bypass duct；；The tuning-fork type liquid-level switch sensor is arranged on the measurement pot sidewall below flowline；
Pulling force sensor is placed in the top that measurement is filled by support arm.
Blade lean on the Oil-gas Separation rotary blade is set, and facilitates liquid fluid to fall to tank base, and
Connected with rotating shaft, gas-liquid separation is more beneficial in rotary course.
Device also includes PLC, and the PLC is discharged with normally opened oil-out magnetic valve, normally closed oil gas respectively
Mouth magnetic valve, normally opened bypass magnetic valve, pulling force sensor and the electrical connection of tuning-fork type liquid-level switch sensor.
The method that fluid flow measurement is carried out according to the production wellhead fluid flow on-line measurement device, including following step
Suddenly：
(A) PLC sends instruction, closes normally opened bypass magnetic valve and normally opened oil-out magnetic valve, opens normally closed oil
Gas outlet magnetic valve, and read the value of thrust G1 of pulling force sensor now；
(B) by Δ T time after liquid level reaches tuning fork sensor liquid level, the value of thrust of pulling force sensor now is read
G2；
(C) PLC sends instruction, opens normally opened bypass magnetic valve and normally opened oil-out magnetic valve, closes normally closed oil
Gas outlet magnetic valve；
(D) flow Q=(G2-G1)/g Δs T is calculated.
Beneficial effect：The present invention compared with prior art, with following significant advantage：Structure of the present invention is simplified, efficiently section
Energy；Pulling force is surveyed based on pulling force sensor and measures fluid flow so that measurement accuracy and efficiency are obtained for raising；Equipment passes through
PLC is highly integrated, realizes the real-time measurement of fluid flow, reliable, easy to maintenance.
Brief description of the drawings
Fig. 1 is on-line measurement apparatus structure schematic diagram of the invention.
Embodiment
Technical scheme is described in further detail with reference to embodiment and accompanying drawing.
As shown in figure 1, the device of the present invention is by measurement tank 1, Oil-gas Separation wheel rotor 2, oil inlet pipe 3, flowline 4, side
Road pipeline 8, tuning-fork type liquid-level switch sensor 10 and pulling force sensor 11 are constituted, and flowline 4 is provided with normally opened oil-out electromagnetism
Valve 5, bypass duct 8 is in turn connected to form string provided with normally opened bypass magnetic valve 9, the oil inlet pipe 3, measurement tank 1 and flowline 4
Join branch road, bypass duct 8 is in parallel with the series arm, and under normal conditions, gas mixture flows away from bypass duct 8, not shadow
Ring the normal conveying of oil gas.One end of oil inlet pipe 3 is connected with measurement tank 1 top, and the other end is connected with the top of bypass duct 8；
One end of flowline 4 penetrates in the tank body of measurement tank 1 and extends downward into the bottom of measurement tank 1, and other end series connection is normally opened fuel-displaced
The end of bypass duct 8 is communicated to after mouth magnetic valve 5；Measure the top perforate of tank 1, be connected to oil gas discharge pipe 6, then with it is one normally closed
Oil gas outlet magnetic valve 7 is connected, and the other end and the flowline 4 of oil gas discharge pipe 6, which cross, is communicated to the end of bypass duct 8.
Tuning-fork type liquid-level switch sensor 10 is arranged on the measurement tank 1 of the medium position of the measurement side wall of tank 1, the specially lower section of flowline 4
Side wall on.
The Oil-gas Separation wheel rotor 2 includes cross bar and blade, and the blade lean is set, and is around in horizontal stroke by rotating shaft
On bar, gas-liquid separation process can be completed by the rotation of impeller.
Described device also include PLC, the PLC respectively with normally opened oil-out magnetic valve 5, normally closed oil gas
Outlet magnetic valve 7, normally opened bypass magnetic valve 9, tuning-fork type liquid-level switch sensor 10 and pulling force sensor 11 are electrically connected.
Pulling force sensor 11 is placed in measurement and fills 1 top and be connected with support arm.
The course of work of the present apparatus is as follows：
(A) under normal operation, normally opened bypass magnetic valve 9 and oil-out magnetic valve 5 are in normally open, gas circuit electromagnetism
Valve 7 is in normally off, and gas mixture is walked from bypass duct 8, and oil gas is normally conveyed；
(B) fluid flow on-line measurement
(b1) normally opened bypass magnetic valve 9 is closed, gas mixture enters measurement tank 1 from oil inlet pipe 3, is sprayed onto Oil-gas Separation and turns
On movable vane wheel 2, fluid is to flowing down, and gas is walked upwards, realizes the separation of fluid and gas；Normally closed oil gas outlet magnetic valve 7 is opened,
Normally opened oil-out magnetic valve 5 is simultaneously closed off, numerical value G1, the interval time Δ T of pulling force sensor 11 are recorded, when liquid level reaches tuning fork
Switch after liquid level sensor 10, record the numerical value G1 of pulling force sensor 11, open normally opened oil-out magnetic valve 5, simultaneously close off often
Oil gas outlet magnetic valve 7 is closed, normally opened bypass magnetic valve 9 is opened, recovers normal operating condition；
(b2) flow Q=(G2-G1)/g Δs T is calculated；
(b3) if measurement is needed, again since (b1).
All collections, control and calculating, transmission are automatically performed by the Intelligent control cabinet of well head, and control system uses technical grade
PLC complete control, calculate and transmit.
This invention realizes the Oil-gas Separation of well head and the accurate measurement of fluid flow, can be big according to well head oil flow quantity
It is small, change oil pumper working condition immediately, produce energy-saving effect.
Claims (5)
1. a kind of production wellhead fluid flow on-line measurement device of use pulling force sensor, it is characterised in that：Including measurement tank
(1), level be horizontally placed on the internal Oil-gas Separation wheel rotor (2) of measurement tank (1), with measure oil inlet pipe (3) that tank (1) connects,
Flowline (4), oil gas discharge pipe (6), located at measurement tank (1) side wall tuning-fork type liquid-level switch sensor (10) and located at measurement
Pulling force sensor (11) at the top of tank (1)；The flowline (4) is provided with normally opened oil-out magnetic valve (5), oil gas discharge pipe
(6) it is provided with normally closed oil gas outlet magnetic valve (7)；The oil inlet pipe (3), measurement tank (1) and flowline (4) are sequentially connected shape
Into series arm, the measurement apparatus also includes the bypass duct (8) in parallel with the series arm, in the bypass duct (8)
Provided with normally opened bypass magnetic valve (9)；Wherein, one end of oil inlet pipe (3) is connected with measurement tank (1) top, the other end and bypass
The top connection of pipeline (8)；One end of flowline (4) penetrates in the tank body of measurement tank (1) and extends downward into measurement tank (1)
The end of bypass duct (8) is communicated to after bottom, the normally opened oil-out magnetic valve (5) of other end series connection；The one of oil gas discharge pipe (6)
Hold the top with measurement tank (1) to connect, bypass duct is also communicated to after the normally closed oil gas outlet magnetic valve (7) of other end series connection
(8) end；The tuning-fork type liquid-level switch sensor (10) is arranged on measurement tank (1) side wall below flowline (4).
2. on-line measurement device according to claim 1, it is characterised in that：The Oil-gas Separation wheel rotor (2) includes
Cross bar and blade, the blade lean are set, and are around in by rotating shaft on cross bar.
3. on-line measurement device according to claim 1 or 2, it is characterised in that：Described device also includes PLC,
The PLC respectively with normally opened oil-out magnetic valve (5), normally closed oil gas outlet magnetic valve (7), normally opened bypass magnetic valve
(9), tuning-fork type liquid-level switch sensor (10) and pulling force sensor (11) electrical connection.
4. on-line measurement device according to claim 1, it is characterised in that：The pulling force sensor (11) passes through support arm
It is connected with the top of measurement tank (1).
5. on-line measurement device according to claim 3, it is characterised in that：Carry out fluid flow measurement, including following step
Suddenly：
(A) PLC sends instruction, closes normally opened bypass magnetic valve (9) and normally opened oil-out magnetic valve (5), opens normally closed
Oil gas outlet magnetic valve (7), and read the value of thrust G1 of pulling force sensor (11) now；
(B) by Δ T time after liquid level reaches tuning fork sensor liquid level, the value of thrust of pulling force sensor (11) now is read
G2；
(C) PLC sends instruction, opens normally opened bypass magnetic valve (9) and normally opened oil-out magnetic valve (5), closes normally closed
Oil gas outlet magnetic valve (7)；
(D) flow Q=(G2-G1)/g Δs T is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338833.2A CN106988725A (en) | 2017-05-15 | 2017-05-15 | Using the production wellhead fluid flow on-line measurement device of pulling force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338833.2A CN106988725A (en) | 2017-05-15 | 2017-05-15 | Using the production wellhead fluid flow on-line measurement device of pulling force sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106988725A true CN106988725A (en) | 2017-07-28 |
Family
ID=59420407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710338833.2A Pending CN106988725A (en) | 2017-05-15 | 2017-05-15 | Using the production wellhead fluid flow on-line measurement device of pulling force sensor |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201330602Y (en) * | 2009-01-23 | 2009-10-21 | 卢玖庆 | Device for measuring high viscosity thick oil flow |
| CN203285424U (en) * | 2013-05-17 | 2013-11-13 | 新疆石油勘察设计研究院（有限公司） | Thickened oil single-tank automatic counting device |
| CN104847334A (en) * | 2015-05-19 | 2015-08-19 | 东南大学 | Online measurement device of producing wellhead oil flow and control method thereof |
-
2017
- 2017-05-15 CN CN201710338833.2A patent/CN106988725A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201330602Y (en) * | 2009-01-23 | 2009-10-21 | 卢玖庆 | Device for measuring high viscosity thick oil flow |
| CN203285424U (en) * | 2013-05-17 | 2013-11-13 | 新疆石油勘察设计研究院（有限公司） | Thickened oil single-tank automatic counting device |
| CN104847334A (en) * | 2015-05-19 | 2015-08-19 | 东南大学 | Online measurement device of producing wellhead oil flow and control method thereof |
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Application publication date: 20170728 |
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