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Gas chromatography rapid quantitative analysis method for saturated hydrocarbon in crude oil sample

An analysis method and quantitative analysis technology, applied in the field of oilfield exploration and development, can solve the problems of long analysis period, insufficient abundance, and inability to provide analysis data analysis data in time, so as to reduce the amount of reagents, shorten the analysis time, and simplify the operation steps.

Pending Publication Date: 2020-05-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For emergencies, this method has the disadvantages of long analysis cycle, inability to provide analysis data in time, and insufficient analysis data

Method used

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  • Gas chromatography rapid quantitative analysis method for saturated hydrocarbon in crude oil sample
  • Gas chromatography rapid quantitative analysis method for saturated hydrocarbon in crude oil sample
  • Gas chromatography rapid quantitative analysis method for saturated hydrocarbon in crude oil sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 Saturated hydrocarbon gas chromatographic fast quantitative analysis method in a kind of crude oil sample

[0039] Described method comprises the following steps:

[0040] Step 1, preparing a standard substance solution: using deuterated n-tetradecane as a standard substance and using isooctane as a solvent, prepare a standard substance solution with a concentration of 200 μg / mL;

[0041] Step 2, weighing 17.60 mg of crude oil sample;

[0042] Step 3, add 100 μL standard solution to the crude oil sample, and dilute to 1 mL with isooctane to obtain a crude oil detection solution;

[0043] Step 4, put the crude oil detection solution into the sample bottle, put it into the ultrasonic cleaner for 15 minutes, shake and mix;

[0044] Step 5, put the sample bottle into a centrifuge for centrifugation, and centrifuge at 4000r / min for 10min;

[0045] Step 6, carry out gas chromatographic analysis to the crude oil detection solution after centrifugation:

[0046...

Embodiment 2

[0056] Embodiment 2 Saturated hydrocarbon gas chromatographic fast quantitative analysis method in a kind of crude oil sample

[0057] Described method comprises the following steps:

[0058] Step 1, preparing a standard substance solution: using deuterated n-tetradecane as a standard substance and using isooctane as a solvent, prepare a standard substance solution with a concentration of 200 μg / mL;

[0059] Step 2, weighing 20 mg of crude oil sample;

[0060] Step 3, add 50 μL standard solution to the crude oil sample, and dilute to 1 mL with isooctane to obtain crude oil detection solution;

[0061] Step 4, put the crude oil detection solution into the sample bottle, put it into the ultrasonic cleaner for 10 minutes, shake and mix;

[0062] Step 5, put the sample bottle into a centrifuge for centrifugation, and centrifuge at 5000r / min for 5min;

[0063] Step 6, carry out gas chromatographic analysis to the crude oil detection solution after centrifugation:

[0064]Chroma...

Embodiment 3

[0074] Embodiment 3 A fast quantitative analysis method for saturated hydrocarbon gas chromatography in a crude oil sample

[0075] Described method comprises the following steps:

[0076] Step 1, preparing a standard substance solution: using deuterated n-tetradecane as a standard substance and using isooctane as a solvent, prepare a standard substance solution with a concentration of 200 μg / mL;

[0077] Step 2, weighing 15 mg of crude oil sample;

[0078] Step 3, add 100 μL standard solution to the crude oil sample, and dilute to 1 mL with isooctane to obtain a crude oil detection solution;

[0079] Step 4, put the crude oil detection solution into the sample bottle, put it into the ultrasonic cleaner for 15 minutes, shake and mix;

[0080] Step 5, put the sample bottle into a centrifuge for centrifugation, and centrifuge at 3000r / min for 10min;

[0081] Step 6, carry out gas chromatographic analysis to the crude oil detection solution after centrifugation:

[0082] Chro...

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Abstract

The invention relates to the technical field of oil field exploration and development, in particular to a gas chromatography rapid quantitative analysis method for saturated hydrocarbon in a crude oilsample. The method comprises the following steps: step 1, preparing a standard substance solution; 2, weighing a proper amount of crude oil sample; 3, adding a standard sample and a reagent into thecrude oil sample to obtain a crude oil detection solution; 4, putting the crude oil detection solution into a sample bottle, putting the sample bottle into an ultrasonic cleaner, oscillating and uniformly mixing; step 5, putting the sample bottle into a centrifugal machine for centrifugal separation; and 6, carrying out gas chromatographic analysis on the centrifugally separated crude oil detection solution, and carrying out quantitative analysis. According to the method disclosed by the invention, chromatographic analysis can be carried out on the crude oil sample without chromatographic column treatment, so that the operation steps are simplified, the reagent consumption is reduced, the analysis process is shortened, and analysis data can be quickly provided.

Description

technical field [0001] The invention relates to the technical field of oilfield exploration and development, in particular to a gas chromatography rapid quantitative analysis method for saturated hydrocarbons in crude oil samples. Background technique [0002] With the development of industry, human beings' demand for energy has increased sharply, and crude oil and its products have become the most important energy source. In recent years, with the continuous exploration and development of oil, crude oil has The phenomenon of running, popping, dripping, and leaking occurred many times. Once an oil spill occurs, due to the lack of systematic and comprehensive oil spill identification basis and rapid and effective oil spill identification methods, it often takes a lot of manpower and material resources to understand the source of crude oil, and it is extremely difficult to determine the oil spill point in a timely and rapid manner. , which led to the continuous expansion of p...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/86
CPCG01N30/02G01N30/06G01N30/8679G01N2030/047
Inventor 金洪蕊李政王忠鲍燕王茹刘旋宋长玉邸晓君任英姿曹智
Owner CHINA PETROLEUM & CHEM CORP
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