CN105317421A - oil well produced fluid water content metering system and control method - Google Patents
oil well produced fluid water content metering system and control method Download PDFInfo
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- CN105317421A CN105317421A CN201510679867.9A CN201510679867A CN105317421A CN 105317421 A CN105317421 A CN 105317421A CN 201510679867 A CN201510679867 A CN 201510679867A CN 105317421 A CN105317421 A CN 105317421A
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- oil well
- moisture content
- wireless communication
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Abstract
The invention relates to an oil well produced fluid water content metering system and a control method and solves the problem that a prior art oil well metering system has low automation level, insufficient operational convenience, major influence from human factors, high labor intensity and low work efficiency. The system comprises a main unit terminal and a control terminal, the main unit terminal comprises a second wireless communication unit, a metering unit and a mass flowmeter unit, the control terminal comprises an input unit, a configuration unit, a synchronization unit and a first wireless communication unit. Water content is calculated by detecting total mass per second and mixture density, and a work stage of an oil well is judged and corresponding work adjustment is made according to the water content. The invention has the advantages that oil well metering equipment is controlled remotely through the control terminal, giving operational convenience and quickness, low labor intensity and high work efficiency; the system control terminal can acquire the current state of the oil well, allowing oil well production to be timely known and improving management level; the water content is simple and quick to calculate, and detection precision is high.
Description
Technical field
The present invention relates to a kind of oil well production measuring equipment, especially relate to a kind of control, simple operation automatically, the produced liquid in oil well moisture content metering system of increasing work efficiency and control method.
Background technology
In the manufacturing process of oil well, from oil well produced stoste, be a kind of mixed liquor be made up of crude oil, water, associated gas, referred to as produced liquid in oil well.Before produced liquid in oil well being transported to oil well multi-purpose station and focusing on, need to measure by Oil, Water, Gas three phase component it, be called for short one-well metering, such as the moisture content of the production fluid of oil well measured, due in oilfield development process, oil well produced fluid moisture content can raise gradually, to the oil development middle and later periods, the production fluid moisture content of most of producing well is higher, by detecting production fluid moisture content, the production status of oil well can be grasped in time, rationally carry out production scheduling.
In current oilfield metering station, major part adopts eliminator to carry out gas-liquid two separation to individual well production fluid, gas, liquid carry out constant volume metering respectively, need the on-the-spot change by the sight glass pipe page of gauging workman, the numerical value of acquisition is inserted in special formula the every data of producing well of converting to obtain, in the process, gauging workman also needs the different conversion valve of frequent operation to rely measurement.This system needs manually to operate, and human factor is large, and need staff in sight glass pipe page change at the scene always, labor intensity is large, and operating efficiency is not high yet.
Also have at present the method for many detection production fluid moisture content in addition, as neutron irradiation method or the additive method such as density, quality, but they exist complex structure, expensive, debug loaded down with trivial details problem.Also hold method, radio frequency frequency displacement method just like radio frequency electrical, although structure is simple, cheap, debugging convenient, the certainty of measurement for high-moisture percentage is poor.
Summary of the invention
The present invention mainly solves that oil well measurement system automation degree in prior art is low, operation is convenient not, human factor is large, labor intensity is large, ineffective problem, provide a kind of control, simple operation automatically, the produced liquid in oil well moisture content metering system of increasing work efficiency.
This invention also solves in prior art to moisture content calculate exist complex structure, expensive, debug loaded down with trivial details, and the problem that accuracy of detection is low, provides a kind of simple and convenient, the produced liquid in oil well moisture content meter metering method that accuracy of detection is high.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of produced liquid in oil well moisture content metering system, comprise host side and control end, described host side includes the second wireless communication unit, metering units and mass flowmenter unit, described mass flowmenter unit is connected with metering units, metering units is connected with the second wireless communication unit, described control end includes input block, dispensing unit, lock unit and the first wireless communication unit, input block is connected with dispensing unit, dispensing unit is connected with lock unit respectively with the first wireless communication unit, first wireless communication unit is connected by network with the second wireless communication unit.The present invention can control oil well metering device by control end is long-range, operates at the scene without the need to staff, also without the need to sight glass pipe page change at the scene always, calculates water ratio in oil well by manual time-keeping.Systematical control end can also obtain oil well current state, grasps the situation of oil well production in time, raises the management level.Staff is set metering device parameter by input block input, and matching unit forms configuration data according to the information of input, sends to host side by lock unit.Lock unit and host side synchronization parameter configure, can also synchronous measurement result.The data that metering units detects according to mass flowmenter unit and timing unit calculate moisture content.
As a kind of preferred version, described host side also includes status unit, level sensing unit, level control unit and pressure sensing cell, level sensing unit is connected with status unit respectively with pressure sensing cell, and status unit is connected with level control unit, the second wireless communication unit respectively.State detection unit receives control end configuration data and carries out parameter configuration to metering device.State detection unit also receives the detection data of liquid level detecting unit and pressure sensing cell, analyzes liquid level and pressure according to configuration parameter.Report to the police when liquid level reaches alarming value, and control level control unit and carry out level control, rising in liquid level reaches in limited time, and level control unit is switched to fluid path, and liquid level declines and reaches in limited time lower, and level control unit is switched to gas circuit.Report to the police when pressure reaches alarming value.
As a kind of preferred version, described host side also includes state indication unit, and state indication unit is connected with status unit, and state indication unit comprises liquid level indicator lamp and pressure indicator light.State indication unit shows liquid level and pressure state according to the information of status unit.Liquid level indicator lamp and pressure indicator light can adopt red green color to show, when normal, show green light, when liquid level or pressure reach alarming value, then show red light.
As a kind of preferred version, described control end also includes query unit, and described input block is connected in query unit, and query unit is connected on lock unit.By input block input inquiry condition, inquired about by the metric results data of query unit to metering system.
As a kind of preferred version, described control end also includes display unit, and described display unit is connected with lock unit.The information that display unit receives according to lock unit, shows oil well condition information and continuous data.
A kind of produced liquid in oil well moisture content meter metering method, comprises the following steps:
S1. production fluid quality total amount Mn per second and hybrid density ρ is gathered by mass flowmenter unit
mix, wherein n=0,1,2,3
S2. the increment Delta M of interior quality total amount per second is calculated
n=M
n-M
n-1; Calculate interior quality total amount per second from Δ M
1start to calculate.
S3. moisture percentage is calculated according to hybrid density
Wherein ρ
ofor oil density, ρ
wfor water density;
S4. calculate per second in flow through the water inventory of mass flowmenter unit
Δ W
n=W%* Δ M
n; The water inventory flowing through mass flowmenter unit in per second is also from Δ W
1start to calculate.
S5. accumulative each second water inventory value
∑W＝ΔW
1+ΔW
2+…+ΔW
n；
S6. accumulative each second quality total amount value
∑M＝ΔM
1+ΔM
2+…+ΔM
n
S7. production fluid moisture content is calculated
S8. oil well working stage is carried out classification, the rank dropped on according to the production fluid moisture content of current calculating judges the working stage of oil well.
As a kind of preferred version, in step S8, oil well working stage is classified as: in advance oil well working stage is divided into several grades according to moisture content, the threshold interval up and down of the corresponding one group of moisture content of each grade, according to the working stage of the interval judgement oil well that the moisture content of current calculating drops on, according to the programme of work of the corresponding adjustment oil well of the working stage of oil well.
Therefore, advantage of the present invention is: control oil well metering device by control end is long-range, convenient to operation, and without the need to sight glass pipe page change at the scene always, labour intensity is low, and operating efficiency is high.Systematical control end can obtain oil well current state, grasps the situation of oil well production in time, raises the management level.Moisture content calculates simple and fast, and accuracy of detection is high.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural frames diagram in the present invention.
1-host side 2-control end 3-metering units 4-state detection unit 6-mass flow unit 7-level sensing unit 8-level control unit 9-state indication unit 10-second wireless communication unit 11-first wireless communication unit 12-lock unit 13-dispensing unit 14-query unit 15-input block 16-display unit 17-pressure sensing cell
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
A kind of produced liquid in oil well moisture content of the present embodiment metering system, as shown in Figure 1, comprises host side 1 and control end 2.
Host side includes the second wireless communication unit 10, state detection unit 4, metering units 3, mass flowmenter unit 6, level sensing unit 7, pressure sensing cell 17, level control unit 8 and state indication unit.Mass flowmenter unit is connected with metering units.Level sensing unit, pressure sensing cell are connected with state detection unit respectively, and state detection unit is connected with level control unit, state indication unit respectively.Metering units and state detection unit are connected with the second wireless communication unit respectively.Level sensing unit is liquid level sensor, and level control unit is the motor operated valve being connected to fluid path and gas circuit in eliminator.
Control end includes input block 15, dispensing unit 13, lock unit 12 and the first wireless communication unit 11.Input block is connected with dispensing unit, and dispensing unit is connected with lock unit, and lock unit is connected with the first wireless communication unit.First communication unit is connected by network with second communication unit.
Control end also has inquiry and Presentation Function, also includes query unit and display unit.Input block is also connected with query unit, and query unit is connected with lock unit.Display unit is connected on lock unit.
The course of work of the present embodiment system is: operating personnel input every parameter to metering device setting by input block, configuration information is formed by dispensing unit, by lock unit synchronized transmission to host side, by host side state detection unit, host side is configured.Image data is sent to metering units by mass flow unit, and metering units calculates moisture content, and by the synchronizing information of metering to control end, control end display unit shows.The condition that query unit also can input according to input block is inquired about information and shows at display unit.Level sensing unit detects liquid level in separator in real time, and pressure sensing cell detects pressure in eliminator in real time, and will detect that information sends to state detection unit respectively.According to setup parameter, state detection unit judges that whether liquid level, pressure is abnormal, if liquid level is too high or too low, then reported to the police by state indication unit, controls level control unit simultaneously and controls liquid level.If hypertonia, reported to the police by state indication unit.
A kind of produced liquid in oil well moisture content metering system control method, comprises the following steps:
S1. production fluid quality total amount Mn per second and hybrid density ρ is gathered by mass flowmenter unit
mix, wherein n=0,1,2,3
S2. the increment Delta M of interior quality total amount per second is calculated
n=M
n-M
n-1; Calculate interior quality total amount per second from Δ M
1start to calculate.
S3. moisture percentage is calculated according to hybrid density
Wherein ρ
ofor oil density, ρ
wfor water density;
S4. calculate per second in flow through the water inventory of mass flowmenter unit
Δ W
n=W%* Δ M
n; The water inventory flowing through mass flowmenter unit in per second is also from Δ W
1start to calculate.
S5. accumulative each second water inventory value
∑W＝ΔW
1+ΔW
2+…+ΔW
n；
S6. accumulative each second quality total amount value
∑M＝ΔM
1+ΔM
2+…+ΔM
n
S7. production fluid moisture content is calculated
S8. oil well working stage is carried out classification, the rank dropped on according to the production fluid moisture content of current calculating judges the working stage of oil well.
Oil well working stage is classified as: in advance oil well working stage is divided into several grades according to moisture content, the threshold interval up and down of the corresponding one group of moisture content of each grade;
In the present embodiment, oil well working stage is divided into 3 grades, the threshold interval up and down of the corresponding one group of moisture content of each grade, is respectively:
The output rising stage [0: 20%)
The stable yield phase [20%: 70%)
Production decline period [70%: 98%)
According to the working stage of the interval judgement oil well that the moisture content of current calculating drops on, and according to the working stage of oil well, compared with oil well working stage in the past, if change, the programme of work of corresponding adjustment oil well.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as host side, control end, metering units, state detection unit herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. a produced liquid in oil well moisture content metering system, it is characterized in that: comprise host side (1) and control end (2), described host side includes the second wireless communication unit (10), metering units (3) and mass flowmenter unit (6), described mass flowmenter unit is connected with metering units, metering units is connected with the second wireless communication unit, described control end includes input block (15), dispensing unit (13), lock unit (12) and the first wireless communication unit (11), input block is connected with dispensing unit, dispensing unit is connected with lock unit respectively with the first wireless communication unit, first wireless communication unit is connected by network with the second wireless communication unit.
2. a kind of produced liquid in oil well moisture content metering system according to claim 1, it is characterized in that described host side (1) also includes status unit (4), level sensing unit (7), level control unit (8) and pressure sensing cell (17), level sensing unit is connected with status unit respectively with pressure sensing cell, and status unit is connected with level control unit, the second wireless communication unit (10) respectively.
3. a kind of produced liquid in oil well moisture content metering system according to claim 1 and 2, it is characterized in that described host side (1) also includes state indication unit (9), state indication unit is connected with status unit, and state indication unit comprises liquid level indicator lamp and pressure indicator light.
4. a kind of produced liquid in oil well moisture content metering system according to claim 1 and 2, it is characterized in that described control end (2) also includes query unit (14), described input block (15) is connected in query unit, and query unit is connected on lock unit (12).
5. a kind of produced liquid in oil well moisture content metering system according to claim 1 and 2, it is characterized in that described control end (2) also includes display unit (16), described display unit is connected with lock unit (12).
6. a produced liquid in oil well moisture content metering system control method, adopts the system in any one of power 1-5, it is characterized in that: comprise the following steps:
S1. production fluid quality total amount Mn per second and hybrid density ρ is gathered by mass flowmenter unit
mix, wherein n=0,1,2,3
S2. the increment Delta M of interior quality total amount per second is calculated
n=M
n-M
n=1;
S3. moisture percentage is calculated according to hybrid density
Wherein ρ
ofor oil density, ρ
wfor water density;
S4. calculate per second in flow through the water inventory of mass flowmenter unit
ΔW
n＝W％＊△M
n；
S5. accumulative each second water inventory value
∑W＝ΔW
1+ΔW
2+…+ΔW
n；
S6. accumulative each second quality total amount value
∑M＝ΔM
1+ΔM
2+…+ΔM
n
S7. production fluid moisture content is calculated
S8. oil well working stage is carried out classification, the rank dropped on according to the production fluid moisture content of current calculating judges the working stage of oil well.
7. a kind of produced liquid in oil well moisture content metering system control method according to claim 6, it is characterized in that in step S8, oil well working stage being classified as: in advance oil well working stage is divided into several grades according to moisture content, the threshold interval up and down of the corresponding one group of moisture content of each grade, according to the working stage of the interval judgement oil well that the moisture content of current calculating drops on, according to the programme of work of the corresponding adjustment oil well of the working stage of oil well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510679867.9A CN105317421A (en) | 2015-10-19 | 2015-10-19 | oil well produced fluid water content metering system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510679867.9A CN105317421A (en) | 2015-10-19 | 2015-10-19 | oil well produced fluid water content metering system and control method |
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| Publication Number | Publication Date |
|---|---|
| CN105317421A true CN105317421A (en) | 2016-02-10 |
Family
ID=55245624
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|---|---|---|---|
| CN201510679867.9A Pending CN105317421A (en) | 2015-10-19 | 2015-10-19 | oil well produced fluid water content metering system and control method |
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Cited By (2)
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| CN110242281A (en) * | 2019-07-19 | 2019-09-17 | 西安思坦仪器股份有限公司 | A kind of oil well intelligent calibration self checking method and device |
| CN110794119A (en) * | 2019-07-12 | 2020-02-14 | 大港油田集团有限责任公司 | Online continuous detection method and system for water content of wellhead output liquid |
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Application publication date: 20160210 |
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