CN200968944Y - Oilfield water quality on-line monitor - Google Patents
Oilfield water quality on-line monitor Download PDFInfo
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- CN200968944Y CN200968944Y CN 200620133938 CN200620133938U CN200968944Y CN 200968944 Y CN200968944 Y CN 200968944Y CN 200620133938 CN200620133938 CN 200620133938 CN 200620133938 U CN200620133938 U CN 200620133938U CN 200968944 Y CN200968944 Y CN 200968944Y
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Abstract
The utility model relates to an oil field water quality online monitoring instrument, which comprises an automatic sampling part, an oil and water separation part, a monitoring part and a data display part. When testing the water sample, the water sample enters into the oil and water separation device through a sampling valve after a masking processing to all ions; the purified water enters into a multipath ion detector, an automatic sampling device, and then a liquor storage device for a test; finally, the computer platforms make a data procession, which can automatically display the ion concentration and monitor twelve different ions, i.e. potassium, sodium, calcium, magnesium, strontium, barium, iron, carbanion, bicarbonate radical, sulfate radical, chlorine radical, and silicon dioxide. The utility model has a good application effect of the online monitoring of waste water reinjection, boiler supplied water and oil well produced water.
Description
Technical field:
The utility model belongs to oil field water quality assay determination, in particular for the monitoring constantly of different kinds of ions.
Background technology:
About the on-line monitoring of oil-field water, just single ionic is implemented on-line monitoring at present, can't implement on-line monitoring to more kinds of ions simultaneously, can not fully understand the character of water.It still is a blank that the water-based on-line monitoring is used for oil-field development.
The utility model content:
The purpose of this utility model solves in the oilfield development process exactly, and different kinds of ions is implemented the needs of on-line monitoring, thereby the character of understanding water promptly and accurately satisfies the needs of oil-field development.
On-line monitoring instrument of the present utility model, comprise and utilize multichannel ion detection device and data acquisition and computer control platform to form monitoring instrument, after various ion interference are sheltered processing, automatically handle and the automatic ion concentration that shows by automatic sampling, sample introduction and data, monitor out potassium, sodium, calcium, magnesium, strontium, barium, iron, carbonate, bicarbonate radical, sulfate radical, chlorine root, 2 kinds of ions of silica 1.
Monitoring instrument of the present utility model comprises:
Automatically sampling part, oil and water separation processing section, monitoring part, data processing display part are formed.
Wherein sampling part is made up of sample valve 1, switch valve 2, relay 3, motor 4 automatically; Oil and water separation part oily-water seperating equipment 5, appliance controling plate 6 are formed; The monitoring part is by reaction tank array 7, automatic sampling device 8, solution storage device 9,10 ... electrode ..11, signal processing circuit 12, multichannel ion detection device 13 are formed; The data processing display part is by gathering and control device 14, computer platform 15.
The test water sample enters oily-water seperating equipment 5 through sample valve 1, is connected with appliance controling plate 6, and liquid level is by the switch valve 2 that links to each other with appliance controling plate 6, relay 3, motor 4 controls.Water sample after the purification enters multichannel ion detection device 13, through automatic sampling device 8, enters solution storage device 9, by electrode 10 ... ..11 test, test signal enters and gathers and control device 14 through signal processing circuit 12, carries out data processing, demonstration by computer platform 15 at last.
Concrete parts of monitoring instrument of the present utility model and work are:
(1), multichannel ion detection device:
A, solution storage device are used for storage standard liquid, damping fluid, solution to be measured and deionized water.
B, solution automatic sampling device are controlled by the sample valve of degree of precision, prepare various solution by a certain percentage, need not manually-operated.
C, reaction tank array, the solution after the preparation flows into the reaction tank array.A switch valve is all arranged at the bottom of each reaction tank, is used to control the discharging of solution.
D, ion electrode array (utilizing a plurality of discrete ion-selective electrode to form array), the detection of each ion needs two electrodes---indicator electrode and contrast electrode.
E, jacking gear, by relay, alternating current generator, speed reduction unit, threaded screw rod, travel switch is formed, and realizes the lifting (immersed in liquid level leaves liquid level) of ion electrode.
F, electric control panel, all electrical equipments such as sample valve, switch valve, relay, electrode, motor concentrate on this panel to be controlled.
(2), data acquisition and control
The collection of data realizes with the main Programmable Logic Controller PLC+ signal processing circuit that relies on of control.During work, PLC is waiting for computer instruction all the time, and to carry out different functions, major function has:
A, data acquisition, after the output signal of plasma electrode was in steady state (SS), PLC began to gather each circuit-switched data, then data was sent to computing machine and handled, shows and preserve.
Equipment such as b, control sample valve, switch valve are realized the automatic preparation of solution to a certain extent.
Electrical equipments such as c, pilot relay, alternating current generator are realized the robotization of motor lifting action.
(3), computer control platform
Computing machine is the host computer of instrument control, keep in communication by serial ports and slave computer, the different buttons of clicking on the computer screen can send data acquisition, solution preparation, instructions such as motor lifting, and the sampled data that slave computer returns is presented in the window of screen after treatment.Software adopts graphic user interface, and is simple to operate understandable, need not professional person's operation also can finish the detection task.In addition, also have database, be used to store the data of demarcation and the result of detection, can supply later reference.
(4) ion transducer:
Ion transducer is the galvanochemistry sensitive body, and the logarithm of given ion activity is linear in its electromotive force and the solution, and it is different from the system that comprises redox reaction.This linear relationship meets Nernst equation.
The principle of work of ion transducer is the same with chemical primary cell, can be automatically self free energy of chemistry be transformed into electric energy.Sensor systems is made of two half cells, and the current potential of one of them half cell changes with certain ion activity in the solution to be measured, plays the effect of indication ion activity to be measured, is called indicator electrode; It is constant that the current potential of another half cell keeps, and plays reference potential, is called contrast electrode.Indicator electrode is immersed in the solution to be measured with contrast electrode, just constitutes a complete battery, can be expressed as
Indicator electrode || electrolyte solution || contrast electrode
Measure potential difference (PD) between two electrodes with potential difference meter, in conjunction with certain calculation method, can obtain by the activity of measured ion, this assay method is the ion electrode method.The ion electrode method can be measured different kinds of ions activity, and generally the concentration range that can survey is 10
-1～10
-5M can reach 10 individually
-8M.
(5) sampling automatically:
Mainly be to solve the corrosion-resistant and sealing problem of sampling valve,, successfully developed self-actuated sampler by serial experiment research.
Before using this instrument, need some solution are pre-stored in the instrument, use during for test.Because some solution contains strong Acidity of Aikalinity, example hydrochloric acid corrodes general material easily, thus the solution reservoir vessel through particular design, acid and alkali-resistance, corrosion-resistant, good airproof performance, not fragile.
When ion transducer is analyzed, be unable to do without the solution sampling, the automatic sampling of solution relies on sample valve and pipeline to realize, all connecting a sample valve below each solution reservoir vessel, the volume of primary sample is 5ml～10ml, so just can realize the automatic sampling of solution according to the requirement that detects.
The basic structure of sample valve is made up of the cavity of a normally open valve mouth, valve-closed port and certain volume, two valve ports are by a solenoid control, its principle of work is when solenoid valve does not power up, the normally open valve door that communicates with NaOH solution tank NaOH is opened, and normal closed gate is closed, like this, the solution in the NaOH solution tank NaOH just has been full of whole pipe; When solenoid valve powered on, the normally open valve door was closed, and normal closed gate is opened, and solution just flows out sample valve, and the pipeline of flowing through arrives reaction tank.The each solution that adds of sample valve is quantitative, is determined by the pipeline between two valve ports.Solenoid valve opens and cuts out by PLC and control.
Various ion interference masking of the present utility model is:
This instrument selection different kinds of ions sensor, but have very big interference between the various sensors, in order to address this problem, carried out a large amount of experimental studies, attempted the way that multiple elimination is disturbed, taked solution preferably through research---add the method that screening agent combines with MICROCOMPUTER PROCESSING
Data are handled automatically and shown ion concentration automatically: the signal for instrument and microsystem is handled, and has worked out software for calculation simultaneously, shows ion concentration automatically, and automaticity is very high, has satisfied the requirement of on-line monitoring.
Monitoring water quality on line process of the present utility model is:
(1) sensor is activated and demarcates;
(2) water sample enters the water sample storage pool to be measured of this system; By the accurate compounding system preparation of multichannel solution different solutions, the ion transducer array immerses in the solution.
(3) treat stable output signal after, send the instruction of measurement by computing machine, start the data acquisition subroutine of PLC, test.
(4) after measurement finishes, send instruction, finish matters such as instrument cleaning by computing machine.
The potassium of being monitored, sodium, calcium, magnesium, strontium, barium, iron, carbonate, bicarbonate radical, sulfate radical, chlorine root, 2 kinds of ions of silica 1.Almost include all ions in the water quality of oil field, solved on-the-spot practical problems.
Description of drawings:
Fig. 1 is the utility model oil-field water on-line monitoring instrument synoptic diagram.
Among the figure, 1 sample valve, 2 switch valves, 3 relays, 4 motors, 5 oily-water seperating equipments, 6 appliance controling plates, 7 reaction tank arrays, 8 automatic sampling devices, 9 solution storage devices, 10 potential electrode, 11 electrodes, 12 signal processing circuits, 13 multichannel ion detection devices, 14 collections and control device, 15 computer platforms.
Embodiment:
This monitor is made up of automatic sampling part, oil and water separation processing section, monitoring part, data processing display part.
Automatically sampling part is made up of sample valve 1, switch valve 2, relay 3, motor 4; Oil and water separation part oily-water seperating equipment 5, appliance controling plate 6 are formed; The monitoring part is by reaction tank array 7, automatic sampling device 8, solution storage device 9, electrode 10 ... ..11, signal processing circuit 12, multichannel ion detection device 13 are formed; The data processing display part is by gathering and control device 14, computer platform 15.
The test water sample enters oil-water separator 5 through sample valve 1, is connected with appliance controling plate 6, and liquid level is by the switch valve 2 that links to each other with appliance controling plate 6, relay 3, motor 4 controls.Water sample after the purification enters multichannel ion detector 13, through self-actuated sampler 8, enters solution reservoir 9, test by electrode 10 potential electrode 11, test signal enters and gathers and controller 14 through signal processing circuit 12, carries out data processing, demonstration by computer platform 15 at last.
This monitoring facilities is as follows:
(1) sensor is activated and demarcates;
(2) be full of required tested media.
(3) send test instruction by computing machine, start the data acquisition subroutine of PLC, test.
(4) after measurement finishes, send instruction, finish matters such as instrument cleaning by computing machine.
The on-line monitoring of produced-water reinjection, boiler water supply, sewage from oil-well is obtained good effect.
Claims (1)
1, a kind of oil field water quality on-line monitoring instrument, be made up of automatic sampling part, oil and water separation part, monitoring part, data processing display part, it is characterized in that: sampling part is made up of sample valve (1), switch valve (2), relay (3), motor (4) automatically; The oil and water separation part is made up of oil-water separator (5), appliance controling plate (6); The monitoring part is made up of reaction tank array (7), self-actuated sampler (8), solution reservoir (9), electrode (10), potential electrode (11), signal processing circuit (12), multichannel ion detector (13); The data processing display part is formed with controller (14), computer platform (15) by gathering; The multichannel ion detector (13) of monitoring part is in the center, and each each several part communicates with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133938 CN200968944Y (en) | 2006-09-29 | 2006-09-29 | Oilfield water quality on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133938 CN200968944Y (en) | 2006-09-29 | 2006-09-29 | Oilfield water quality on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200968944Y true CN200968944Y (en) | 2007-10-31 |
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ID=38968514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620133938 Expired - Lifetime CN200968944Y (en) | 2006-09-29 | 2006-09-29 | Oilfield water quality on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200968944Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175826A (en) * | 2010-12-31 | 2011-09-07 | 聚光科技(杭州)股份有限公司 | Online analysis system and method of water quality |
| CN103499984A (en) * | 2013-09-26 | 2014-01-08 | 北京农业智能装备技术研究中心 | Nutrient solution ion concentration control method and system |
| CN105277668A (en) * | 2015-11-13 | 2016-01-27 | 重庆国农环境科技股份有限公司 | Polar coordinate type water shield paddy field water quality monitoring method |
-
2006
- 2006-09-29 CN CN 200620133938 patent/CN200968944Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175826A (en) * | 2010-12-31 | 2011-09-07 | 聚光科技(杭州)股份有限公司 | Online analysis system and method of water quality |
| CN103499984A (en) * | 2013-09-26 | 2014-01-08 | 北京农业智能装备技术研究中心 | Nutrient solution ion concentration control method and system |
| CN105277668A (en) * | 2015-11-13 | 2016-01-27 | 重庆国农环境科技股份有限公司 | Polar coordinate type water shield paddy field water quality monitoring method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071031 |
|
| EXPY | Termination of patent right or utility model |