CN109696372A - Aqueous assay method - Google Patents
Aqueous assay method Download PDFInfo
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- CN109696372A CN109696372A CN201710994820.0A CN201710994820A CN109696372A CN 109696372 A CN109696372 A CN 109696372A CN 201710994820 A CN201710994820 A CN 201710994820A CN 109696372 A CN109696372 A CN 109696372A
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- mixed liquor
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- 238000003556 assay Methods 0.000 title claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 18
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 6
- 239000011259 mixed solution Substances 0.000 abstract 2
- 238000010998 test method Methods 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 11
- 239000004519 grease Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 239000003129 oil well Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 235000020681 well water Nutrition 0.000 description 3
- 239000002349 well water Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- -1 demulsifier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2847—Water in oils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention provides a water content testing method for testing the water content in a sample containing oil-water mixed liquid, which comprises the following steps: pouring the sample into a sample cylinder, and separating the sample in the sample cylinder into a mixed solution at an upper layer and free water at a lower layer; obtaining a weight G of the free water in the sample cartridgeWater (W)And obtaining the water content H of the mixed solutionSeparation device(ii) a According to the weight G of the free waterWater (W)And the water content H of the mixed liquorSeparation deviceObtaining the total water content H of the sampleGeneral assembly. The water-containing test method solves the problem of large test error of the method for testing the water-containing of the thin oil in the prior art.
Description
Technical field
The present invention relates to water content to chemically examine field, in particular to a kind of aqueous assay method.
Background technique
There are following two big defects for the existing aqueous assay method of thin oil:
1, the aqueous chemical examination of thin oil generallys use 25ml or 100ml centrifuge tube and is chemically examined with centrifugal process at present, but actually by
The demulsifying materials such as demulsifier, gasoline are also added in oil in test of crude is aqueous, cause the centrifuge tube of 25ml that can only be put into 10ml oil
Sample, 100ml centrifuge tube can only be put into 50ml oil sample.
However, field sampling 50ml or less is difficult to control, and for the oil well of 1m3 minimum for Liquid output, 100ml or less
Sample size it is very little, the aqueous height of oil well cannot be represented completely.
2, the aqueous chemical examination of thin oil requires grease to be sufficiently mixed, i.e., cannot have the water of free state, but to accomplish that this point needs
Great external force is wanted to rock sampling bottle at least half an hour, scene can not accomplish at all.Also, even if being uniformly mixed, stopping rocking
Moment, grease still can quick separating.This cannot guarantee when causing Sample introduction test tube grease be it is equally distributed,
To increase operating error.
Summary of the invention
The main purpose of the present invention is to provide a kind of aqueous assay method, to solve in the prior art to contain for thin oil
The larger problem of the Error and Assay for the method that aquation is tested.
To achieve the goals above, the present invention provides a kind of aqueous assay methods, contain oil-water mixture for chemically examining
Water content in the sample of body, which is characterized in that the aqueous assay method include: the sample is poured into sample cylinder, and
The sample being located in the sample cylinder is set to be separated into the mixed liquor positioned at upper layer and the free water positioned at lower layer；Obtain the sample
The weight G of the free water in cylinderWater, and obtain the water content H of the mixed liquorFrom；According to the weight G of the free waterWaterWith
The water content H of the mixed liquorFromObtain the total moisture content H of the sampleAlways。
Further, the aqueous assay method further include: according to the water content H of the mixed liquorFromObtain the mixing
The weight G of contained water in liquidFrom；According to the weight G of the free waterWaterWith the weight G of water contained in the mixed liquorFromIt obtains
The total moisture content H of the sampleAlways。
Further, weight G aqueous in the mixed liquor is obtainedFromMethod include: to obtain the gross weight of the sample
Measure GAlways；Aqueous weight G in the mixed liquorFromCalculation method it is as follows:
GFrom=(GAlways-GWater)×HFrom。
Further, the total weight G of the sample is obtainedAlwaysMethod include: that the sample is being poured into the sample cylinder
Before interior, the pure weight G of the sample cylinder is weighedCylinder；After in by sample cylinder described in the Sample introduction, the sample is weighed
The total weight G of cylinder and the sampleSample+cylinder；The total weight G of the sampleAlwaysCalculation formula are as follows: GAlways=GSample+cylinder-GCylinder。
Further, the total moisture content H of the sampleAlwaysCalculation method are as follows:
Further, the sample being located in the sample cylinder is made to be separated into the mixed liquor positioned at upper layer and the trip positioned at lower layer
It include: to heat before pouring into the sample in the sample cylinder to the sample from the method for water, it will be through adding
The sample after heat treatment pours into the sample cylinder.
Further, the sample cylinder is graduated cylinder, by reading the quarter on the graduated cylinder corresponding to the liquid level of free water
Spend the volume V to obtain the free waterWater, and the volume V for passing through the free waterWaterObtain the weight G of the free waterWater。
Further, the water content H of the mixed liquor is obtainedFromMethod include: by be located at the sample cell in mixing
Liquid pours into centrifugation apparatus, to obtain the water content H of the mixed liquor using centrifugal processFrom。
Aqueous assay method of the invention is used to chemically examine the water content in the sample containing oil mixing with water liquid, this contains aquation
Proved recipe method only changes chemical examination process, haves no need to change existing assay technique and equipment.Wherein, aqueous assay method includes: by sample
Product pour into sample cylinder, and are separated into the sample being located in sample cylinder positioned at the mixed liquor on upper layer and positioned at the free of lower layer
Water；Obtain the weight G of the free water in sample cylinderWater, and obtain the water content H of mixed liquorFrom；According to the weight G of free waterWaterWith it is mixed
Close the water content H of liquidFromObtain the total moisture content H of sampleAlways.Dividing naturally for mixed liquor and free water is utilized in this aqueous assay method
From, in mixed liquor and free moisture from rear, the water content in the mixed liquor on upper layer be it is equally distributed, therefore, pass through trip
Weight from water is added the total moisture content that can obtain sample with the water content of mixed liquor, it follows that only needing a small amount of grease mixed
The sample for closing liquid, full well water content can be accurately obtained in the case where there is free water, is not required to again time-consuming and laborious shake
Even sample, and operating error is small.
In addition, the aqueous assay method can use any volume on the basis of mixed liquor and free water natural separation
Sample cylinder obtain total moisture content, it is very few to avoid sampling, cannot accurately obtain the water content of oil well.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the implementation flow chart of the embodiment of aqueous assay method according to the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It is aqueous in the sample containing oil mixing with water liquid for chemically examining the present invention provides a kind of aqueous assay method
Amount, aqueous assay method include: to pour into sample in sample cylinder, and be separated into the sample being located in sample cylinder positioned at upper layer
Mixed liquor and free water positioned at lower layer；Obtain the weight G of the free water in sample cylinderWater, and obtain the water content H of mixed liquorFrom；
According to the weight G of free waterWaterWith the water content H of mixed liquorFromObtain the total moisture content H of sampleAlways。
Aqueous assay method of the invention is used to chemically examine the water content in the sample containing oil mixing with water liquid, this contains aquation
Proved recipe method only changes chemical examination process, haves no need to change existing assay technique and equipment.Wherein, aqueous assay method includes: by sample
Product pour into sample cylinder, and are separated into the sample being located in sample cylinder positioned at the mixed liquor on upper layer and positioned at the free of lower layer
Water；Obtain the weight G of the free water in sample cylinderWater, and obtain the water content H of mixed liquorFrom；According to the weight G of free waterWaterWith it is mixed
Close the water content H of liquidFromObtain the total moisture content H of sampleAlways.Dividing naturally for mixed liquor and free water is utilized in this aqueous assay method
From, in mixed liquor and free moisture from rear, the water content in the mixed liquor on upper layer be it is equally distributed, therefore, pass through trip
Weight from water is added the total moisture content that can obtain sample with the water content of mixed liquor, it follows that only needing a small amount of grease mixed
The sample for closing liquid, full well water content can be accurately obtained in the case where there is free water, is not required to again time-consuming and laborious shake
Even sample, and operating error is small.
In addition, the aqueous assay method can use any volume on the basis of mixed liquor and free water natural separation
Sample cylinder obtain total moisture content, it is very few to avoid sampling, cannot accurately obtain the water content of oil well.
In the present embodiment, aqueous assay method further include: according to the water content H of mixed liquorFromIt obtains contained in mixed liquor
Water weight GFrom；According to the weight G of free waterWaterWith the weight G of water contained in mixed liquorFromObtain the total moisture content of sample
HAlways。
In the present embodiment, weight G aqueous in mixed liquor is obtainedFromMethod include: obtain sample total weight GAlways；
Aqueous weight G in mixed liquorFromCalculation method it is as follows:
GFrom=(GAlways-GWater)×HFrom。
In the present embodiment, the total weight G of sample is obtainedAlwaysMethod include: before sample is poured into sample cylinder, claim
Measure the pure weight G of sample cylinderCylinder；After in by Sample introduction sample cylinder, the total weight G of sample cylinder and sample is weighedSample+cylinder；Sample
Total weight GAlwaysCalculation formula are as follows: GAlways=GSample+cylinder-GCylinder。
In the present embodiment, the total moisture content H of sampleAlwaysCalculation method are as follows:
In the present embodiment, the sample being located in sample cylinder is made to be separated into the mixed liquor positioned at upper layer and the trip positioned at lower layer
Method from water includes: to heat before pouring into sample in sample cylinder to sample, will be heat-treated after sample
Product pour into sample cylinder.
In the present embodiment, sample cylinder is graduated cylinder, by read the scale corresponding to the liquid level of free water on graduated cylinder with
Obtain the volume V of free waterWater, and pass through the volume V of free waterWaterObtain the weight G of free waterWater。
In the present embodiment, the water content H of mixed liquor is obtainedFromMethod include: by be located at sample cylinder in mixed liquor fall
Enter in centrifugation apparatus, to obtain the water content H of mixed liquor using centrifugal processFrom。
Implementation of the invention is divided into the following steps:
A graduated cylinder is taken, after peeling, graduated cylinder weighing (G is poured into after field sampling is heatedAlways)。
Record free water volume (VWater)。
Top mixed liquor is poured out and is aqueous (H with centrifugal processFrom)。
Whole samples are calculated with following formula:
Wherein, HAlways: total aqueous, the unit % of sample；
GAlways: the gross mass of sample, unit are gram；
VWater: sample pours into the volume of the free water read after graduated cylinder natural separation, and unit is milliliter, and the volume of water is equivalent
In quality, directly participate in calculating；
HFrom: aqueous, the unit % after the centrifugation of graduated cylinder top mixed liquor.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Aqueous assay method of the invention is used to chemically examine the water content in the sample containing oil mixing with water liquid, this contains aquation
Proved recipe method only changes chemical examination process, haves no need to change existing assay technique and equipment.Wherein, aqueous assay method includes: by sample
Product pour into sample cylinder, and are separated into the sample being located in sample cylinder positioned at the mixed liquor on upper layer and positioned at the free of lower layer
Water；Obtain the weight G of the free water in sample cylinderWater, and obtain the water content H of mixed liquorFrom；According to the weight G of free waterWaterWith it is mixed
Close the water content H of liquidFromObtain the total moisture content H of sampleAlways.Dividing naturally for mixed liquor and free water is utilized in this aqueous assay method
From, in mixed liquor and free moisture from rear, the water content in the mixed liquor on upper layer be it is equally distributed, therefore, pass through trip
Weight from water is added the total moisture content that can obtain sample with the water content of mixed liquor, it follows that only needing a small amount of grease mixed
The sample for closing liquid, full well water content can be accurately obtained in the case where there is free water, is not required to again time-consuming and laborious shake
Even sample, and operating error is small.
In addition, the aqueous assay method can use any volume on the basis of mixed liquor and free water natural separation
Sample cylinder obtain total moisture content, it is very few to avoid sampling, cannot accurately obtain the water content of oil well.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of aqueous assay method, for chemically examining the water content in the sample containing oil mixing with water liquid, which is characterized in that institute
Stating aqueous assay method includes:
The sample is poured into sample cylinder, and make be located at the sample cylinder in sample be separated into positioned at upper layer mixed liquor and
Positioned at the free water of lower layer；
Obtain the weight G of the free water in the sample cylinderWater, and obtain the water content H of the mixed liquorFrom；
According to the weight G of the free waterWaterWith the water content H of the mixed liquorFromObtain the total moisture content H of the sampleAlways。
2. aqueous assay method according to claim 1, which is characterized in that the aqueous assay method further include:
According to the water content H of the mixed liquorFromObtain the weight G of water contained in the mixed liquorFrom；
According to the weight G of the free waterWaterWith the weight G of water contained in the mixed liquorFromObtain the total aqueous of the sample
Measure HAlways。
3. aqueous assay method according to claim 2, which is characterized in that obtain weight aqueous in the mixed liquor
GFromMethod include:
Obtain the total weight G of the sampleAlways；
Aqueous weight G in the mixed liquorFromCalculation method it is as follows:
GFrom=(GAlways-GWater)×HFrom。
4. aqueous assay method according to claim 3, which is characterized in that obtain the total weight G of the sampleAlwaysMethod
Include:
Before pouring into the sample in the sample cylinder, the pure weight G of the sample cylinder is weighedCylinder；
After in by sample cylinder described in the Sample introduction, the total weight G of the sample cylinder and the sample is weighedSample+cylinder；
The total weight G of the sampleAlwaysCalculation formula are as follows: GAlways=GSample+cylinder-GCylinder。
5. aqueous assay method according to claim 3, which is characterized in that the total moisture content H of the sampleAlwaysCalculating side
Method are as follows:
6. aqueous assay method according to claim 1, which is characterized in that make the sample being located in sample cylinder separation
Method for the mixed liquor positioned at upper layer and the free water positioned at lower layer includes:
Before pouring into the sample in the sample cylinder, the sample is heated, after heat-treated
The sample pours into the sample cylinder.
7. aqueous assay method according to claim 1, which is characterized in that the sample cylinder is graduated cylinder, is swum by reading
Scale on the graduated cylinder corresponding to liquid level from water is to obtain the volume V of the free waterWater, and pass through the free water
Volume VWaterObtain the weight G of the free waterWater。
8. aqueous assay method according to claim 1, which is characterized in that obtain the water content H of the mixed liquorFromSide
Method includes:
The mixed liquor being located in the sample cylinder is poured into centrifugation apparatus, to obtain the aqueous of the mixed liquor using centrifugal process
Measure HFrom。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994820.0A CN109696372A (en) | 2017-10-23 | 2017-10-23 | Aqueous assay method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994820.0A CN109696372A (en) | 2017-10-23 | 2017-10-23 | Aqueous assay method |
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| Publication Number | Publication Date |
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| CN109696372A true CN109696372A (en) | 2019-04-30 |
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| CN201710994820.0A Pending CN109696372A (en) | 2017-10-23 | 2017-10-23 | Aqueous assay method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021262643A1 (en) * | 2020-06-22 | 2021-12-30 | Saudi Arabian Oil Company | Measuring water content of petroleum fluids using dried petroleum fluid solvent |
| US11548784B1 (en) | 2021-10-26 | 2023-01-10 | Saudi Arabian Oil Company | Treating sulfur dioxide containing stream by acid aqueous absorption |
| CN117309667A (en) * | 2023-08-02 | 2023-12-29 | 中国科学院力学研究所 | Experimental device and analysis method for determining specific components in sample |
| US11926799B2 (en) | 2021-12-14 | 2024-03-12 | Saudi Arabian Oil Company | 2-iso-alkyl-2-(4-hydroxyphenyl)propane derivatives used as emulsion breakers for crude oil |
| US12116326B2 (en) | 2021-11-22 | 2024-10-15 | Saudi Arabian Oil Company | Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US12116326B2 (en) | 2021-11-22 | 2024-10-15 | Saudi Arabian Oil Company | Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst |
| US11926799B2 (en) | 2021-12-14 | 2024-03-12 | Saudi Arabian Oil Company | 2-iso-alkyl-2-(4-hydroxyphenyl)propane derivatives used as emulsion breakers for crude oil |
| CN117309667A (en) * | 2023-08-02 | 2023-12-29 | 中国科学院力学研究所 | Experimental device and analysis method for determining specific components in sample |
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