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Quantitative analysis method for volatile components in liquid products of thermal-simulation hydrocarbon generation experiment

A quantitative analysis and thermal simulation technology, applied in the field of oil and gas geochemistry, can solve problems such as poor repeatability of experimental results, inapplicability of weighing methods, loss of volatile components, etc., to achieve true and reliable quantitative results of volatile components, and good application Foreground, experimental environment requirements are not high

Active Publication Date: 2014-12-24
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has high requirements on the experimental environment and operators. The volatile components are seriously lost during the oil-water separation process and the constant weight process. A small amount of water mixed with light hydrocarbons or a small amount of light hydrocarbons left in the water will cause great results. error, and the repeatability of the experimental results is poor
Use low boiling point organic solvents (such as dichloromethane) to collect oil-water mixtures, which can avoid the loss of volatile components during the oil-water separation process, but the presence of solvents makes the weighing method unsuitable
Traditional gas chromatography (GC-FID) can be used to analyze volatile components, but due to the small capacity and poor separation ability of the chromatographic column, the peak overlap phenomenon on the chromatogram is serious, and there are varying degrees of interference on the standard peak. Directly Affect Quantitative Results

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  • Quantitative analysis method for volatile components in liquid products of thermal-simulation hydrocarbon generation experiment
  • Quantitative analysis method for volatile components in liquid products of thermal-simulation hydrocarbon generation experiment
  • Quantitative analysis method for volatile components in liquid products of thermal-simulation hydrocarbon generation experiment

Examples

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Embodiment 1

[0035] This example provides a method for quantitative analysis of volatile components in liquid products of thermal simulation hydrocarbon generation experiments. The black mudstone samples from Well Da 11 in the Songliao Basin were taken for thermal simulation hydrocarbon generation experiments (the information of the samples is shown in Table 1), and the liquid products of the samples subjected to thermal simulation hydrocarbon generation experiments were collected, processed and analyzed according to the following steps and calculations to obtain quantitative results.

[0036] Table 1

[0037] sampling location

[0038] The quantitative analysis method of volatile components in the liquid product of thermal simulation hydrocarbon generation experiment of the present invention comprises the following steps:

[0039] (1) Collection and treatment of liquid products in thermal simulation hydrocarbon generation experiments:

[0040] (1a), connect the liquid product ...

Embodiment 2

[0063] This example provides a method for quantitative analysis of volatile components in liquid products of thermal simulation hydrocarbon generation experiments. Take the same sample as in Example 1, and use the same method as in Example 1 to carry out the thermal simulation hydrocarbon generation experiment, and the volatile components in the liquid product of the thermal simulation hydrocarbon generation experiment are subjected to the same thermal simulation hydrocarbon generation experiment liquid state as in Example 1. The quantitative analysis method of the volatile components in the product is analyzed to obtain quantitative results. The quantitative results of this example were compared with the quantitative results of Example 1 to investigate the repeatability of the quantitative analysis method of the volatile components in the liquid product of the thermal simulation hydrocarbon generation experiment of the present invention.

[0064] The data of S1, F1, S2, F2, C...

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Abstract

The invention provides a quantitative analysis method for volatile components in liquid products of a thermal-simulation hydrocarbon generation experiment. The quantitative analysis method comprises the following steps of collecting and treating the liquid products of the thermal-simulation hydrocarbon generation experiment, specifically, collecting, removing water, removing slag and injecting a standard sample; quantitatively analyzing the volatile components in the liquid products of the thermal-simulation hydrocarbon generation experiment through a comprehensive two-dimensional gas chromatography-hydrogen flame ionization detector, specifically, carrying out primary comprehensive two-dimensional analysis, volatilizing to reach constant weight and secondary comprehensive two-dimensional analysis; calculating a quantification result of the volatile components in the liquid products of the thermal-simulation hydrocarbon generation experiment. The quantification result of the volatile components in the liquid products of the thermal-simulation hydrocarbon generation experiment, which is obtained by the quantitative analysis method disclosed by the invention, is real, reliable and high in repetitiveness, so that a reliable technical support is supplied to evaluation of an oil-gas resource amount.

Description

technical field [0001] The invention relates to a quantitative analysis method for volatile components in liquid products of thermal simulation hydrocarbon generation experiments, and belongs to the technical field of oil and gas geochemistry. Background technique [0002] The thermal simulation experiment of hydrocarbon generation is one of the important experimental means used by oil and gas geochemists to explore the mechanism of oil and gas generation and reproduce the oil generation process. The experiment is mainly based on the principle of kerogen thermal degradation into hydrocarbons and the time-temperature compensation principle of organic matter thermal evolution. In the laboratory, immature or low-mature organic matter is used to simulate pyrolysis and hydrocarbon generation in a short period of time under high temperature and pressure conditions to reproduce Low-temperature and long-term thermal evolution of organic matter in geological processes. The product o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88
Inventor 张水昌王汇彤翁娜张斌朱光有苏劲陈瑞银刘小江魏小芳
Owner PETROCHINA CO LTD