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Oil gas inclusion component sampling method

A technology of inclusions and oil and gas, applied in the field of oil and gas exploration research, can solve the problems of being easily polluted by the outside world and not being able to effectively collect compounds with high carbon numbers, so as to achieve efficient collection, reduce external pollution, and reduce foreign pollutants.

Active Publication Date: 2015-06-17
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0003] In view of the above-mentioned existing technical conditions, in order to make up for the defects that the existing methods cannot effectively collect compounds with high carbon numbers in the target oil and gas inclusions and are easily polluted by the outside world, the present invention provides a method for sampling the components of oil and gas inclusions, including Follow the steps below:

Method used

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  • Oil gas inclusion component sampling method
  • Oil gas inclusion component sampling method
  • Oil gas inclusion component sampling method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Steps:

[0038] (1) Take a certain amount of calcite cement sample 1 in the brecciated fracture zone of Well Luo 63 in the Zhanhua Sag, and use a mortar to crush sample 1 into particles with a cross-section smaller than 1mm*1mm, then dry the particles and wash them with a solvent, Remove surface-adsorbed hydrocarbon components.

[0039] (2) Take two quartz capillary square tubes, the inner diameter of the first quartz capillary square tube 4 is 0.7mm*0.7

[0040] mm, the outer diameter is 0.9mm*0.9mm, and the length is about 50mm. The second square quartz capillary tube 2 has an inner diameter of 1mm*1mm, an outer diameter of 1.2mm*1.2mm, and a length of about 60mm. First put the two square tubes into the methylene chloride solvent and soak for 48 hours, then take them out and dry them, then use a hydrogen flame gun to seal one end of the two square tubes, and finally put the two square tubes into the oven and dry them at 100 Bake at ℃ for about 30 minutes to remove m...

Embodiment 2

[0047] Another oil and gas inclusion was taken for compositional analysis. Before collecting and analyzing the composition of the inclusion, the background composition of the sample was collected first (that is, except that the main minerals around the inclusion were not denuded, the rest of the operations were similar to the collection of the inclusion composition. components collected under exactly the same conditions) and analyzed, the results are as follows Figure 5 shown.

[0048] After collecting and analyzing the background components of the sample, collect and analyze the inclusion components of the same sample (i.e. repeat steps 1-5), and the analysis results are as follows: Figure 6 .

[0049] Depend on Figure 5 and Figure 6 It can be seen from the comparison that the analysis results of the background components no matter in the number of impurity peaks ( Figure 5 The peaks numbered 1 to 4) or in the response intensity ( Figure 5 Among them, the intensity...

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Abstract

A method of sampling ingredients of an oil-bearing inclusion includes a) providing a first container and a second container, an external diameter of the first container being smaller than an internal diameter of the second container, and the first and second containers both being transparent; b) adding a solvent into the first container and sealing said first container; c) adding an oil-bearing inclusion sample into the second container, and putting the first container that contains the solvent and is sealed in step b) into the second container; and d) using a laser to ablate the oil-bearing inclusion sample contained in the second container that is sealed in step c), and using the laser to break an end portion of the first container close to the sample on condition that the second container is maintained complete, so as to allow the solvent in the first container to enter the second container.

Description

technical field [0001] The invention belongs to the field of oil and gas exploration research and is used for collecting the components of oil and gas inclusions in geological samples. Background technique [0002] Oil and gas inclusions are geological paleofluid samples captured in minerals such as calcite and quartz during the process of oil and gas charging and accumulation. The analysis of the composition of oil and gas inclusions is one of the important means to understand the information of oil and gas properties, sources, accumulation periods, etc. They are superimposed in the same mineral particle, so how to effectively collect the components of the target inclusions is the key and difficult point of inclusion composition analysis. In the current existing technology, the collection of oil and gas inclusion components is generally divided into two steps: the first step is to destroy the main minerals around the inclusions to release the inclusion components; the seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/02G01N30/08
CPCE21B49/02G01N30/06G01N30/7206G01N2030/065
Inventor 席斌斌施伟军蒋宏秦建中许锦张志荣李志明
Owner CHINA PETROLEUM & CHEM CORP
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