A method for analyzing sterane compounds in petroleum geological samples
A technology of geological samples and analysis methods, applied in the field of analysis of sterane compounds in petroleum geological samples, can solve the problems of complicated steps, wrong qualitative results, inability to achieve baseline separation, etc., and achieves simple, reliable and accurate sample preparation process. The effect of high degree of concentration and short sample extraction time
Image
Examples
Embodiment 1
[0045] The petroleum geological sample in the present embodiment adopts the core sample of series drilling in continental sedimentary basin in eastern my country, and the analysis method of sterane compounds in the core sample comprises the following steps:
[0046] (1) Grind the core sample to rock particles with a particle size of 2-3 mm, take 100 mg of rock particles and place them in a 2 mL chromatographic bottle, add 1 mL of toluene to it, and obtain a weight-to-volume ratio of rock particles to toluene of 100 mg / mL of solution; sealed with a bottle cap lined with tinfoil, and soaked at room temperature for 6 hours; then ultrasonically oscillated the chromatographic bottle in an ultrasonic instrument for 15 minutes, then placed the bottom of the chromatographic bottle in a centrifuge tube and centrifuged for 10 minutes, the core sample The soluble organic matter in the chromatographic bottle is extracted into the supernatant liquid of the chromatographic bottle, and the s...
Embodiment 2
[0053] The petroleum geological sample in the present embodiment adopts the core sample of series drilling in continental sedimentary basin in eastern my country, and the analysis method of sterane compounds in the core sample comprises the following steps:
[0054] (1) Grind the core sample to rock particles with a particle size of 2-3 mm, take 400 mg of rock particles and place them in a 2 mL chromatographic bottle, add 1 mL of toluene to it, and obtain a weight-to-volume ratio of rock particles to toluene of 400 mg / mL of solution; the chromatographic bottle was ultrasonically oscillated in an ultrasonic instrument for 60 min; then sealed with a bottle cap lined with tinfoil, and the chromatographic bottle was placed at room temperature for 24 hours, then the soluble organic matter in the core sample was extracted into the chromatographic bottle In the supernatant, the supernatant is the liquid to be analyzed.
[0055] Step (2) is the same as in Example 1.
[0056] Step (3...
Embodiment 3
[0059] The petroleum geological sample in the present embodiment adopts the core sample of series drilling in continental sedimentary basin in eastern my country, and the analysis method of sterane compounds in the core sample comprises the following steps:
[0060] (1) Grind the core sample to rock particles with a particle size of 2-3 mm, take 100 mg of rock particles and place them in a 10 mL chromatographic bottle, add 5 mL of toluene to it, and obtain a weight-to-volume ratio of 20 mg / mL of rock particles to toluene. mL of solution; ultrasonically vibrate the chromatographic vial for 5 min in an ultrasonic instrument; then seal it with a bottle cap lined with tinfoil, place the chromatographic vial at room temperature for 12 h, and place the vial bottom down in a centrifuge tube for 60 min , the soluble organic matter in the core sample is extracted into the supernatant of the chromatographic bottle, and the supernatant is the liquid to be analyzed.
[0061] Step (2) is t...
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Abstract
Description
Claims
Application Information
- IPC
- G01N30/88
- Inventors
- 刘鹏; 蒋启贵