Automated analysis of formation fluids under pressure

FIELD: oil and gas industry.

SUBSTANCE: this invention is related to an automated analysis of formation fluids such as gas-cut (under pressure) raw oil. Analysis of the formation fluid sample includes separation of the formation fluid sample into a flow of a gaseous phase and a flow of a liquid phase. Besides, it includes determination of composition of the gaseous phase flow, measurement of a parameter of the liquid phase flow and determination of volume of components of liquid phase flow at least partially on the basis of the measured parameter of the liquid phase flow. A system for analysis of the formation fluid sample includes measuring vessel (126) having a possibility of receiving a formation fluid sample, phase separator (128) having a possibility of receiving the formation fluid sample from measuring vessel (126) and separating the formation fluid sample into a gaseous phase flow and a liquid phase flow. Besides, the system includes gas chromatograph (134) having a possibility of receiving the gaseous phase flow from phase separator (128) and liquid flow meter (138) having a possibility of detecting the boundary line containing at least one component of the liquid phase flow.

EFFECT: automation of an analysis of a formation fluid sample such as a formation fluid sample under pressure, for example gas-cut oil.

14 cl, 3 dwg

 



 

Same patents:

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a high-sensitivity method for measuring the amount of individual's blood plasma glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts. The high-sensitivity method for measuring the amount of glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts is characterised by the fact that a mixture of individual's blood plasma with methanol or ammonia water in the specific concentration is introduced into a solid phase having the reverse-phase distribution function and the anion exchange function; the solid phase is then washed with a cleaning fluid that is a single-component fluid or a mixed fluid of at least two components specified in a group containing water, alkali, alcohol and acetonitrile. That is followed by elution from the solid phase in acid alcohol specified in formic acid - methanol or formic acid - ethanol; that is followed by the stage of measuring glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts by liquid chromatography - mass spectrometry or liquid chromatography - mass spectrometry/mass spectrometry.

EFFECT: high-sensitivity method enables detecting and measuring the amounts of individual's blood plasma glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts.

4 dwg, 17 tbl, 7 ex

FIELD: instrumentation.

SUBSTANCE: invention relates to forecast of ageing processes of the synthetic polymer materials (SPM) depending on duration of their operation or storage. Analysis of the volatile organic compounds (VOC) migrating from SPM is performed by active sampling for sorbent, with further thermal desorption and gas chromatographic analysis. Forecast of the ageing processes of the material and estimation of toxicity of the gas discharge are performed as per dynamic of the qualitative and quantitative composition of gas discharge components in SPM initial state, and during artificial climatic thermal-humidity ageing. Dynamics analysis of the total gas discharge (ΣT) from each material is performed for all substances migrating from studied SPMs. Change of toxicity is estimated and forecast of the material ageing is performed as per developed indices of total gas discharge (ΣT) and as per hygienic index P=(ΣTinitial/ΣTn)/V, where Tinitial and Tn are indices of toxicity of gas discharge of each substance in initial state and after ageing, respectively, and ΣTinitial and ΣTn are total indices of toxicity of gas discharge of all components of SPM in initial state and after ageing, V is duration of ageing (year, month).

EFFECT: invention ensures high accuracy of the method of VOC qualitative and quantitative composition determination in gas discharge during materials ageing and the analysis results repeatability.

3 tbl

FIELD: biotechnology.

SUBSTANCE: sample under study is placed in a sealed container of inert material, thermostated to the temperature above 25°C but below the destruction temperature of the biological object under study. From the thermostated sample the sampling of gas-vapour phase is carried out, which is examined by chromatography-mass spectrometry method by separation on the chromatographic column. Then the components of mixture of the gas-vapour phase are recorded as a series of chromatographic peaks in the chromatogram and are identified on time of their exit on the chromatogram and mass spectrum. Calculation of the concentration of alcohols is carried out in accordance with the obtained chromatogram according to the relevant peak areas of components of mixture of the gas-vapour phase.

EFFECT: increased sensitivity, accuracy and reliability of the identification and quantitative research, preservation of the object under study for possible repeat or additional studies.

1 tbl, 8 dwg

FIELD: chemistry.

SUBSTANCE: method of simultaneous determination of methanol and diethylene glycol in natural and sewage water by LC method with separation of said components in chromatographic column in flow of eluent, which represents sulphuric acid solution in deionised water with molar concentration 2.5 mmole/dm3; registering difference of indices of refraction of eluent solution and solutions, which contain target components and processing results of measurements by method of absolute calibration. Sample preparation does not require dilution of analysed water sample up to content of target components 10 g/dm3, more concentrated samples are diluted with deionised water.

EFFECT: quickness and simultaneousness of determination of diethylene glycol and methanol content.

FIELD: chemistry.

SUBSTANCE: described is an alcohol thermal hydration chamber and an apparatus for real-time determination of isotopic composition of non-exchangeable hydrogen and deuterium atoms in ethanol samples, comprising: A) an alcohol thermal dehydration chamber, B) an indicating device which has a pyrolysis reactor (26) and a continuous flow isotope spectrometer and is connected to the alcohol thermal dehydration chamber by C) a system of valves, connectors and capillary tubes which are used to transfer the analysed sample and clean the alcohol thermal dehydration chamber; the procedure for real-time determination of isotopic composition of non-exchangeable hydrogen and deuterium atoms in ethanol samples and the procedure for off-line preparation of ethene (ethylene) gas by means of the alcohol thermal dehydration chamber and for the identity and geographical origin of wines, alcoholic beverages, fruit juices, honey and etc.

EFFECT: high accuracy of determination.

9 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention can be used for simultaneous determination of content of ions of transition metals Fe(III), Fe(II), Cu, Pb, Zn, Ni, Co, Cd, Mn in natural, surface, waste, underground water and water extracts of saline soil. High-performance liquid chromatography is used for simultaneous determination of content of ions with separation of the ions in a chromatographic column in eluent flow. The eluent consists of a solution of sodium octane sulphonate, sodium hydrotartrate and acetonitrile in dionised water. Mixing is then carried out in a post-column reaction module with a reagent which is a solution of PAR ([4-(2-pyridylazo) resorcinol], glacial acetic acid and aqueous ammonia in deionised water. Further, the difference in optical absorption of the eluent and complexes of the determined ions with the added reagent is detected using spectrophotometric detector in the visible spectrum at 520 nm.

EFFECT: increased accuracy, faster simultaneous determination of content of transition metal ions in natural, surface, waste, underground water and water extracts of saline soil.

2 tbl

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for synthesis of ester perfluorinated derivative by using a chemical reaction. This reaction represents the fluorination reaction of the parent compound as a raw, the reaction of chemical conversion of fragment of ester perfluorinated derivative to yield another ester perfluorinated derivative or the interaction reaction of carboxylic acid with alcohol under condition that at least one or reagent, i. e. carboxylic acid or alcohol, represents a perfluorinated compound wherein indicated perfluorinated derivative of ester represents a compound comprising a fragment of the formula (1):

with a boiling point 400°C, not above. The reaction time for carrying out abovementioned chemical reaction is sufficient to provide the required yield of ester perfluorinated derivative and wherein this yield of ester perfluorinated compound is determined by the gas chromatography method by using a nonpolar column. Also, invention relates to a method for pyrolysis of ester perfluorinated derivative with a boiling point 400°C, not above, to yield the dissociation product wherein this product represents a derivative of acyl fluoride or ketone and wherein pyrolysis time is sufficient to provide the required degree of conversion of ester perfluorinated derivative and wherein the indicated conversion degree of ester perfluorinated derivative is determined by gas chromatography method by using a nonpolar column. Also, invention relates to a method for analysis of ester perfluorinated derivative with a boiling point 400°C, not above, that involves analysis of ester perfluorinated derivative in a sample containing ester perfluorinated derivative by gas chromatography method by using a nonpolar column wherein ester perfluorinated derivative represents compound comprising a fragment of above given formula (1).

EFFECT: improved method of synthesis.

8 cl, 1 dwg, 2 ex

Gas analyzer // 2141656
The invention relates to devices for analytical instrumentation and can be used as a chromatographic device in the refining, petrochemical and other fields to measure the microtraces

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for synthesis of ester perfluorinated derivative by using a chemical reaction. This reaction represents the fluorination reaction of the parent compound as a raw, the reaction of chemical conversion of fragment of ester perfluorinated derivative to yield another ester perfluorinated derivative or the interaction reaction of carboxylic acid with alcohol under condition that at least one or reagent, i. e. carboxylic acid or alcohol, represents a perfluorinated compound wherein indicated perfluorinated derivative of ester represents a compound comprising a fragment of the formula (1):

with a boiling point 400°C, not above. The reaction time for carrying out abovementioned chemical reaction is sufficient to provide the required yield of ester perfluorinated derivative and wherein this yield of ester perfluorinated compound is determined by the gas chromatography method by using a nonpolar column. Also, invention relates to a method for pyrolysis of ester perfluorinated derivative with a boiling point 400°C, not above, to yield the dissociation product wherein this product represents a derivative of acyl fluoride or ketone and wherein pyrolysis time is sufficient to provide the required degree of conversion of ester perfluorinated derivative and wherein the indicated conversion degree of ester perfluorinated derivative is determined by gas chromatography method by using a nonpolar column. Also, invention relates to a method for analysis of ester perfluorinated derivative with a boiling point 400°C, not above, that involves analysis of ester perfluorinated derivative in a sample containing ester perfluorinated derivative by gas chromatography method by using a nonpolar column wherein ester perfluorinated derivative represents compound comprising a fragment of above given formula (1).

EFFECT: improved method of synthesis.

8 cl, 1 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention can be used for simultaneous determination of content of ions of transition metals Fe(III), Fe(II), Cu, Pb, Zn, Ni, Co, Cd, Mn in natural, surface, waste, underground water and water extracts of saline soil. High-performance liquid chromatography is used for simultaneous determination of content of ions with separation of the ions in a chromatographic column in eluent flow. The eluent consists of a solution of sodium octane sulphonate, sodium hydrotartrate and acetonitrile in dionised water. Mixing is then carried out in a post-column reaction module with a reagent which is a solution of PAR ([4-(2-pyridylazo) resorcinol], glacial acetic acid and aqueous ammonia in deionised water. Further, the difference in optical absorption of the eluent and complexes of the determined ions with the added reagent is detected using spectrophotometric detector in the visible spectrum at 520 nm.

EFFECT: increased accuracy, faster simultaneous determination of content of transition metal ions in natural, surface, waste, underground water and water extracts of saline soil.

2 tbl

FIELD: chemistry.

SUBSTANCE: described is an alcohol thermal hydration chamber and an apparatus for real-time determination of isotopic composition of non-exchangeable hydrogen and deuterium atoms in ethanol samples, comprising: A) an alcohol thermal dehydration chamber, B) an indicating device which has a pyrolysis reactor (26) and a continuous flow isotope spectrometer and is connected to the alcohol thermal dehydration chamber by C) a system of valves, connectors and capillary tubes which are used to transfer the analysed sample and clean the alcohol thermal dehydration chamber; the procedure for real-time determination of isotopic composition of non-exchangeable hydrogen and deuterium atoms in ethanol samples and the procedure for off-line preparation of ethene (ethylene) gas by means of the alcohol thermal dehydration chamber and for the identity and geographical origin of wines, alcoholic beverages, fruit juices, honey and etc.

EFFECT: high accuracy of determination.

9 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: method of simultaneous determination of methanol and diethylene glycol in natural and sewage water by LC method with separation of said components in chromatographic column in flow of eluent, which represents sulphuric acid solution in deionised water with molar concentration 2.5 mmole/dm3; registering difference of indices of refraction of eluent solution and solutions, which contain target components and processing results of measurements by method of absolute calibration. Sample preparation does not require dilution of analysed water sample up to content of target components 10 g/dm3, more concentrated samples are diluted with deionised water.

EFFECT: quickness and simultaneousness of determination of diethylene glycol and methanol content.

FIELD: biotechnology.

SUBSTANCE: sample under study is placed in a sealed container of inert material, thermostated to the temperature above 25°C but below the destruction temperature of the biological object under study. From the thermostated sample the sampling of gas-vapour phase is carried out, which is examined by chromatography-mass spectrometry method by separation on the chromatographic column. Then the components of mixture of the gas-vapour phase are recorded as a series of chromatographic peaks in the chromatogram and are identified on time of their exit on the chromatogram and mass spectrum. Calculation of the concentration of alcohols is carried out in accordance with the obtained chromatogram according to the relevant peak areas of components of mixture of the gas-vapour phase.

EFFECT: increased sensitivity, accuracy and reliability of the identification and quantitative research, preservation of the object under study for possible repeat or additional studies.

1 tbl, 8 dwg

FIELD: instrumentation.

SUBSTANCE: invention relates to forecast of ageing processes of the synthetic polymer materials (SPM) depending on duration of their operation or storage. Analysis of the volatile organic compounds (VOC) migrating from SPM is performed by active sampling for sorbent, with further thermal desorption and gas chromatographic analysis. Forecast of the ageing processes of the material and estimation of toxicity of the gas discharge are performed as per dynamic of the qualitative and quantitative composition of gas discharge components in SPM initial state, and during artificial climatic thermal-humidity ageing. Dynamics analysis of the total gas discharge (ΣT) from each material is performed for all substances migrating from studied SPMs. Change of toxicity is estimated and forecast of the material ageing is performed as per developed indices of total gas discharge (ΣT) and as per hygienic index P=(ΣTinitial/ΣTn)/V, where Tinitial and Tn are indices of toxicity of gas discharge of each substance in initial state and after ageing, respectively, and ΣTinitial and ΣTn are total indices of toxicity of gas discharge of all components of SPM in initial state and after ageing, V is duration of ageing (year, month).

EFFECT: invention ensures high accuracy of the method of VOC qualitative and quantitative composition determination in gas discharge during materials ageing and the analysis results repeatability.

3 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a high-sensitivity method for measuring the amount of individual's blood plasma glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts. The high-sensitivity method for measuring the amount of glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts is characterised by the fact that a mixture of individual's blood plasma with methanol or ammonia water in the specific concentration is introduced into a solid phase having the reverse-phase distribution function and the anion exchange function; the solid phase is then washed with a cleaning fluid that is a single-component fluid or a mixed fluid of at least two components specified in a group containing water, alkali, alcohol and acetonitrile. That is followed by elution from the solid phase in acid alcohol specified in formic acid - methanol or formic acid - ethanol; that is followed by the stage of measuring glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts by liquid chromatography - mass spectrometry or liquid chromatography - mass spectrometry/mass spectrometry.

EFFECT: high-sensitivity method enables detecting and measuring the amounts of individual's blood plasma glycyrrhizin, glycyrrhetinic acid and their pharmaceutically acceptable salts.

4 dwg, 17 tbl, 7 ex

FIELD: oil and gas industry.

SUBSTANCE: this invention is related to an automated analysis of formation fluids such as gas-cut (under pressure) raw oil. Analysis of the formation fluid sample includes separation of the formation fluid sample into a flow of a gaseous phase and a flow of a liquid phase. Besides, it includes determination of composition of the gaseous phase flow, measurement of a parameter of the liquid phase flow and determination of volume of components of liquid phase flow at least partially on the basis of the measured parameter of the liquid phase flow. A system for analysis of the formation fluid sample includes measuring vessel (126) having a possibility of receiving a formation fluid sample, phase separator (128) having a possibility of receiving the formation fluid sample from measuring vessel (126) and separating the formation fluid sample into a gaseous phase flow and a liquid phase flow. Besides, the system includes gas chromatograph (134) having a possibility of receiving the gaseous phase flow from phase separator (128) and liquid flow meter (138) having a possibility of detecting the boundary line containing at least one component of the liquid phase flow.

EFFECT: automation of an analysis of a formation fluid sample such as a formation fluid sample under pressure, for example gas-cut oil.

14 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: inventions relate to field of molecular biology and deal with recombinant DNA pA4, recombinant plasmid DNA pQE 30-A4, Esherichia coli strain M15-A4, recombinant polypeptide A4, possessing ability to selectively bind human serum albumin (HSA), affine sorbent, containing such polypeptide, affine combined sorbent and methods for successive removal of HSA and IgG from blood serum. Characterised affine combines sorbent is obtained by mixing affine sorbent, containing said recombinant polypeptide A4, and analogous affine sorbent, in which known IgG-binding polypeptide is used as ligand.

EFFECT: claimed inventions can be used in medical practice to deplete blood serum of two proteins, albumin (HSA) and immunoglobulin G (IgG), present in it in high concentrations Removal of two major proteins from blood serum will make it possible to identify other proteins, present in serum in lower concentrations.

8 cl, 9 dwg, 7 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: method for detecting and identifying toxic chemicals using a mobile chemical control complex is proposed in accordance with the developed chemical control algorithm using equipment of this complex. The method includes the following three stages: rapid analysis conducted up to 30 minutes in series using GDA 2. 5 gas analyzer, TruDefender FTG, FirstDefender and TruDefender FT spectrometers; sampling conducted up to 5 minutes in parallel using sampling tubes Tenax-TA and KPO-1M kit; in-depth analysis conducted up to 180 minutes using Agilent 5975T mass-spectrometer including Agilent G1888 vapour-phase system and ACEM 9300 thermodesorber.

EFFECT: increasing accuracy of detection of various concentrations of toxic chemicals and identification of these substances in environmental objects, as well as timely informing officials about the nature of the used chemical in order to make further decisions on making corresponding arrangements.

2 dwg

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