CN106290185B - Oil field water injection compatibility rapid analysis device and analysis method - Google Patents
Oil field water injection compatibility rapid analysis device and analysis method Download PDFInfo
- Publication number
- CN106290185B CN106290185B CN201610587019.XA CN201610587019A CN106290185B CN 106290185 B CN106290185 B CN 106290185B CN 201610587019 A CN201610587019 A CN 201610587019A CN 106290185 B CN106290185 B CN 106290185B
- Authority
- CN
- China
- Prior art keywords
- compatibility
- photoelectric converter
- electric signal
- different
- analysis device
- Prior art date
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
Abstract
The invention discloses a rapid analysis device for oilfield water injection compatibility and an analysis method thereof, wherein the analysis device comprises a liquid storage bottle, a gradient control unit, an infusion pump, a reaction tube, an absorption tank and a waste liquid collecting tank which are sequentially connected through an infusion tube, wherein the gradient control unit and the infusion pump are connected with a computer through a power line; the reaction tube is arranged in the constant-temperature water bath, a visible light source is arranged on one side of the absorption tank, a photoelectric converter is arranged on the other side of the absorption tank, the visible light source and the photoelectric converter are symmetrically arranged, an amplifying module is arranged in the photoelectric converter, and the photoelectric converter converts an optical signal into an electric signal and transmits the electric signal to the computer after amplifying the electric signal by the amplifying module. The invention can simulate the mixing process of different water bodies on site under dynamic conditions, realize the continuous change control of the proportion among different water samples by an instrument, and continuously and online measure the absorbance of the mixed water samples by adopting an online spectrophotometry, thereby realizing the rapid analysis of the compatibility among different water samples.
Description
Technical Field
The invention relates to the field of oilfield water injection development, in particular to a device and a method for rapidly analyzing oilfield water injection compatibility.
Background
At present, most of oil field development in China sequentially enters the middle and later stages of oil exploitation, namely the high water content stage. As formation pressure continues to decrease, crude oil produced solely from the reservoir's own energy is continually decreasing. Therefore, water injection oil recovery is an important means to maintain reservoir pressure. Because the water resources in China are relatively lacking and unevenly distributed, the injection and extraction of clear water only can cause great waste of the water resources, and meanwhile, the ecological system can be influenced to a certain extent. Therefore, water from different sources including sewage produced by oil wells, surface water, shallow underground clear water and the like need to be mixed and then reinjected into the stratum, and when the mixed water is reinjected, the original balance system is broken along with the change of the original system conditions (such as pressure, temperature, pH and the like), so that the serious scaling phenomenon is caused due to incompatibility among different water bodies. Therefore, the research on the compatibility problem between different water bodies and oil extraction sewage becomes one of important means for saving water resources, optimizing water injection structures and relieving reservoir injuries.
However, at present, two main types of compatibility analysis exist among different water bodies, one type is that firstly, anions and cations in different water bodies are analyzed, then, structural trends are predicted through digital-analog software, on one hand, the main anions and cations in water are analyzed, the workload is high, and numerical simulation results often come in and go out from actual conditions. The other method is to mix water from different sources according to a certain proportion, and then to measure the absorbance value of the water under different proportions respectively so as to analyze the compatibility of different water bodies.
Disclosure of Invention
In order to solve the problems, the invention provides a device and a method for rapidly analyzing the compatibility of oilfield flooding, which can simulate the mixing process of different water bodies on site under dynamic conditions and realize rapid compatibility analysis among different water bodies through instrument automation.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the rapid analysis device for oilfield water injection compatibility comprises a liquid storage bottle, a gradient control unit, an infusion pump, a reaction tube, an absorption tank and a waste liquid collecting tank which are sequentially connected through an infusion tube, wherein the gradient control unit and the infusion pump are connected with a computer through a power line; the reaction tube is arranged in the constant-temperature water bath, a visible light source is arranged on one side of the absorption tank, a photoelectric converter is arranged on the other side of the absorption tank, the visible light source and the photoelectric converter are symmetrically arranged, an amplifying module is arranged in the photoelectric converter, and the photoelectric converter converts an optical signal into an electric signal and sends the electric signal to a computer after amplifying the electric signal through the amplifying module.
Preferably, the infusion tube is made of polytetrafluoroethylene materials.
Preferably, the infusion pump is a miniature mechanical reciprocating pump, the dead volume is less than 5 mu L, and the flow rate control precision is less than 0.02mL/min.
Preferably, the temperature control range of the constant temperature water bath 8 is 25-95 ℃.
Preferably, the visible light source is one of a tungsten lamp and a deuterium lamp, and the wavelength range is 400-800nm.
The oil field water injection compatibility rapid analysis method is characterized by comprising the following steps of:
s1, storing water samples A, B, C and D from different sources to be analyzed in different liquid storage bottles, conveying the water samples in the different liquid storage bottles through an infusion pump, controlling the proportion of the different water samples through a gradient control unit, so that the water samples from different sources are mixed in a reaction tube according to any proportion, regulating and controlling the temperature in the reaction tube through a constant-temperature water bath, and simulating the on-site temperature condition;
s2, after the light emitted by the visible light source irradiates the absorption tank, part of the light is absorbed and scattered by the fluid in the absorption tank, the rest of the light irradiates the photoelectric converter, and the photoelectric converter converts the optical signal into an electric signal, amplifies the electric signal and transmits the electric signal to the computer;
s3, the computer receives the data, calculates the blank signal and the sample signal through a preset data processing system, calculates the absorbance value of the sample according to the signal difference value, and displays and prints out the signal
S4, evaluating the compatibility of different water samples through an absorption curve displayed by a computer, when the value of the absorption curve is close to 0 and forms a straight line, the compatibility of the different water samples is good under the proportion, the higher the peak of the absorption curve is, the worse the compatibility is, and finally, the optimal proportion range of the mutual compatibility of the different water samples is determined according to the shape of the absorption curve.
Preferably, the water samples of different sources can be two or more, and generally not more than 4.
Preferably, the flow rate of the infusion pump in the step S1 is controlled to be 0.1-10mL/min.
The invention has the following beneficial effects:
the method can simulate the mixing process of different water bodies on site under dynamic conditions, realize continuous variation control of the proportion among different water samples through an instrument, and continuously and online measure the absorbance of the mixed water samples by adopting an online spectrophotometry, thereby realizing rapid analysis of compatibility among different water samples.
Drawings
Fig. 1 is a schematic structural diagram of a device for rapidly analyzing compatibility of oilfield flooding in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to examples in order to make the objects and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the embodiment of the invention provides a rapid analysis device for oilfield water injection compatibility, which comprises a liquid storage bottle, a gradient control unit 1, an infusion pump 2, a reaction tube 3, an absorption tank 4 and a waste liquid collecting tank 9 which are sequentially connected through an infusion tube, wherein the gradient control unit 1 and the infusion pump 2 are connected with a computer 7 through power lines; the reaction tube 3 is arranged in the constant-temperature water bath 8, one side of the absorption tank 4 is provided with a visible light source 5, the other side of the absorption tank is provided with a photoelectric converter 6, the visible light source 5 and the photoelectric converter 6 are symmetrically arranged, an amplifying module is arranged in the photoelectric converter 6, and the photoelectric converter 6 converts an optical signal into an electric signal and sends the electric signal to the computer 7 after amplifying the electric signal by the amplifying module.
The infusion tube is made of polytetrafluoroethylene materials.
The infusion pump 2 is a miniature mechanical reciprocating pump, the dead volume is smaller than 5 mu L, and the flow rate control precision is smaller than 0.02mL/min.
The temperature control range of the constant temperature water bath 8 is 25-95 ℃.
The visible light source is one of a tungsten lamp and a deuterium lamp, and the wavelength range is 400-800nm.
The embodiment of the invention also provides that the visible light source is one of a tungsten lamp and a deuterium lamp, and the wavelength range is 400-800nm.
The oil field water injection compatibility rapid analysis method is characterized by comprising the following steps of:
s1, storing water samples A, B, C and D from different sources to be analyzed in different liquid storage bottles, conveying the water samples in the different liquid storage bottles through an infusion pump, controlling the proportion of the different water samples through a gradient control unit, so that the water samples from different sources are mixed in a reaction tube according to any proportion, regulating and controlling the temperature in the reaction tube through a constant-temperature water bath, and simulating the on-site temperature condition;
s2, after the light emitted by the visible light source irradiates the absorption tank, part of the light is absorbed and scattered by the fluid in the absorption tank, the rest of the light irradiates the photoelectric converter, and the photoelectric converter converts the optical signal into an electric signal, amplifies the electric signal and transmits the electric signal to the computer; when different water bodies in the reaction tube are not compatible to generate precipitation, the change of the light transmittance of the solution in the absorption tank 4 is caused, and the change of the light transmittance is converted into an electric signal through a photoelectric converter and then displayed through a computer;
s3, the computer receives data, calculates an air white signal and a sample signal through a preset data processing system, calculates an absorbance value of the sample according to a signal difference value, and displays and prints out the signal;
s4, evaluating the compatibility of different water samples through an absorption curve displayed by a computer, when the value of the absorption curve is close to 0 and forms a straight line, the compatibility of the different water samples is good under the proportion, the higher the peak of the absorption curve is, the worse the compatibility is, and finally, the optimal proportion range of the mutual compatibility of the different water samples is determined according to the shape of the absorption curve.
Preferably, the water samples of different sources can be two or more, and generally not more than 4.
Preferably, the flow rate of the infusion pump in the step S1 is controlled to be 0.1-10mL/min.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (4)
1. The rapid analysis device for oilfield water injection compatibility is characterized by comprising a liquid storage bottle, a gradient control unit (1), a liquid delivery pump (2), a reaction tube (3), an absorption tank (4) and a waste liquid collecting tank (9) which are sequentially connected through a liquid delivery tube, wherein the gradient control unit (1) and the liquid delivery pump (2) are connected with a computer (7) through a power line, the reaction tube (3) is arranged in a constant-temperature water bath (8), one side of the absorption tank (4) is provided with a visible light source (5), the other side of the absorption tank is provided with a photoelectric converter (6), the visible light source (5) and the photoelectric converter (6) are symmetrically arranged, an amplifying module is arranged in the photoelectric converter (6), and the photoelectric converter (6) converts a light signal into an electric signal and sends the electric signal to the computer (7) after being amplified by the amplifying module; the infusion pump (2) is a miniature mechanical reciprocating pump, the dead volume is smaller than 5 mu L, and the flow rate control precision is smaller than 0.02mL/min;
the method for rapidly analyzing the oilfield water injection compatibility by using the oilfield water injection compatibility rapid analysis device comprises the following steps:
s1, storing water samples A, B, C and D from different sources to be analyzed in different liquid storage bottles, conveying the water samples in the different liquid storage bottles through an infusion pump, controlling the proportion of the different water samples through a gradient control unit, so that the water samples from different sources are mixed in a reaction tube according to any proportion, regulating and controlling the temperature in the reaction tube through a constant-temperature water bath, and simulating the on-site temperature condition; the flow rate of the infusion pump is controlled to be 0.1-10mL/min;
s2, after the light emitted by the visible light source irradiates the absorption tank, part of the light is absorbed and scattered by the fluid in the absorption tank, the rest of the light irradiates the photoelectric converter, and the photoelectric converter converts the optical signal into an electric signal, amplifies the electric signal and transmits the electric signal to the computer;
s3, the computer receives data, calculates an air white signal and a sample signal through a preset data processing system, calculates an absorbance value of the sample according to a signal difference value, and displays and prints out the signal;
s4, evaluating the compatibility of different water samples through an absorption curve displayed by a computer, when the value of the absorption curve is close to 0 and forms a straight line, the compatibility of the different water samples is good under the proportion, the higher the peak of the absorption curve is, the worse the compatibility is, and finally, the optimal proportion range of the mutual compatibility of the different water samples is determined according to the shape of the absorption curve.
2. The rapid analysis device for oilfield water injection compatibility as claimed in claim 1, wherein the infusion tube is made of polytetrafluoroethylene material.
3. The rapid analysis device for oilfield water injection compatibility of claim 1, wherein the constant temperature water bath (8) has a temperature control range of 25-95 ℃.
4. The rapid analysis device for oilfield water injection compatibility according to claim 1, wherein the visible light source is one of a tungsten lamp and a deuterium lamp, and the wavelength range is 400-800nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587019.XA CN106290185B (en) | 2016-07-06 | 2016-07-06 | Oil field water injection compatibility rapid analysis device and analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587019.XA CN106290185B (en) | 2016-07-06 | 2016-07-06 | Oil field water injection compatibility rapid analysis device and analysis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290185A CN106290185A (en) | 2017-01-04 |
| CN106290185B true CN106290185B (en) | 2023-09-26 |
Family
ID=57652221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610587019.XA Active CN106290185B (en) | 2016-07-06 | 2016-07-06 | Oil field water injection compatibility rapid analysis device and analysis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106290185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132178B (en) * | 2017-12-20 | 2020-05-19 | 中国海洋石油集团有限公司 | Oil field injection water performance evaluation device and evaluation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013087A (en) * | 2007-02-05 | 2007-08-08 | 同济大学 | Method for measuring trace copper ion by using light absorption ratio difference and continuous-flow |
| CN101105440A (en) * | 2007-08-01 | 2008-01-16 | 山东省科学院海洋仪器仪表研究所 | Method for measuring water body total nitrogen and total phosphorous by digestion spectrophotometry of ultraviolet cooperating with ozone |
| CN102287172A (en) * | 2011-09-05 | 2011-12-21 | 中国石油天然气股份有限公司 | Oil extraction method for heavy oil reservoir |
| CN104258780A (en) * | 2014-10-08 | 2015-01-07 | 杭州凡腾科技有限公司 | Concentration preparation device for mixed solution |
| CN206074433U (en) * | 2016-07-06 | 2017-04-05 | 西安石油大学 | A kind of oil-field flooding compatibility fast analyser |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2954796B1 (en) * | 2009-12-24 | 2016-07-01 | Total Sa | USE OF NANOPARTICLES FOR THE MARKING OF PETROLEUM FIELD INJECTION WATER |
-
2016
- 2016-07-06 CN CN201610587019.XA patent/CN106290185B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013087A (en) * | 2007-02-05 | 2007-08-08 | 同济大学 | Method for measuring trace copper ion by using light absorption ratio difference and continuous-flow |
| CN101105440A (en) * | 2007-08-01 | 2008-01-16 | 山东省科学院海洋仪器仪表研究所 | Method for measuring water body total nitrogen and total phosphorous by digestion spectrophotometry of ultraviolet cooperating with ozone |
| CN102287172A (en) * | 2011-09-05 | 2011-12-21 | 中国石油天然气股份有限公司 | Oil extraction method for heavy oil reservoir |
| CN104258780A (en) * | 2014-10-08 | 2015-01-07 | 杭州凡腾科技有限公司 | Concentration preparation device for mixed solution |
| CN206074433U (en) * | 2016-07-06 | 2017-04-05 | 西安石油大学 | A kind of oil-field flooding compatibility fast analyser |
Non-Patent Citations (3)
| Title |
|---|
| 五里湾一区回注水与储层配伍性研究;王蓓蕾;吴新民;张喜凤;赵海峰;丁学银;;断块油气田(第02期);全文 * |
| 王蓓蕾 ; 吴新民 ; 张喜凤 ; 赵海峰 ; 丁学银 ; .五里湾一区回注水与储层配伍性研究.断块油气田.2009,(第02期),全文. * |
| 甘秀玉等.WS17-2油田注入水配伍性研究与防垢剂筛选.长江大学学报（自科版）.2016,第13卷(第10期),第27-29页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106290185A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102262087B (en) | On-line monitoring device for total arsenic in water quality | |
| CN103196887B (en) | High-throughput microfluidic device for organic pesticide detection, and water sample detection method of same | |
| CN102654045B (en) | Top air injection gravity-assisted flooding oil-extraction one-dimensional physical simulation experimental system | |
| CN102654046B (en) | Top air-injection gravity auxiliary driving oil-extraction two-dimensional physical simulation experiment system | |
| CN102735592A (en) | Apparatus for measuring diffusion coefficient of carbon dioxide in rock | |
| CN103616525A (en) | Instrument for rapidly monitoring total phosphorus in water on line | |
| CN112858628A (en) | Microcosmic visual experiment device for simulating fluid displacement under high-temperature and high-pressure conditions | |
| CN106290185B (en) | Oil field water injection compatibility rapid analysis device and analysis method | |
| CN104535519A (en) | Online detection device for concentration of polyacrylamide in oilfield wastewater | |
| Meng et al. | Effect of fluid viscosity on correlation of oil recovery by linear counter-current spontaneous imbibition | |
| CN106703764A (en) | Pore-level simulation experiment device for alternately displacing oil by microorganisms and air in porous media | |
| Matiolo et al. | On the gas dispersion measurements in the collection zone of flotation columns | |
| Tang et al. | Investigation of the flow characteristics of methane hydrate slurries with low flow rates | |
| CN103743657A (en) | Experimental determination method for passing capability of polymer gel grains in porous medium | |
| Xu et al. | Study of oil removal kinetics using cyclone-static microbubble flotation column | |
| CN203729989U (en) | Shale hydrocarbon generating, adsorbing and desorbing simulating system | |
| CN203685150U (en) | Microorganism oil displacement injection agent and air onsite injection device | |
| CN206074433U (en) | A kind of oil-field flooding compatibility fast analyser | |
| Wu et al. | Field-Scale Experimental Study on the Perforation Erosion in Horizontal Wellbore under Real Fracturing Conditions | |
| CN110593833A (en) | Simulation method for improving recovery ratio by microbial flooding | |
| Liu et al. | Experimental and numerical study of bimolecular reactive transport in a single rough-wall fracture | |
| CN206584241U (en) | Strength of fluid On-line Control device | |
| Qi et al. | Evaluating dissolved ozone in a bubble column using a discrete-bubble model | |
| CN202057604U (en) | On-line monitoring device for total arsenic in water | |
| CN106501215A (en) | A kind of microbubble volumetric concentration measurement apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |