Methods for identifying the genesis of condensate oil and gas

By combining PVT phase analysis with maturity and whole oil chromatography, the problem of identifying the genesis of condensate oil and gas has been solved, enabling rapid and accurate determination of the genesis of condensate oil and gas.

CN122084877APending Publication Date: 2026-05-26CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-11-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies lack effective methods for identifying the genesis of condensate oil and gas, making it difficult to accurately distinguish between primary and secondary condensate oil and gas reservoirs.

Method used

By acquiring surface oil and gas samples, performing PVT phase analysis, and combining maturity analysis and whole oil chromatography analysis, using aromatic hydrocarbon and adamantane chromatographic analysis and natural gas component analysis, the maturity difference between crude oil and natural gas and the loss of light components of n-alkanes are calculated to determine the genesis of condensate oil and gas reservoirs.

Benefits of technology

It enables rapid and accurate identification of the genesis of condensate oil and gas, improving the simplicity and accuracy of the identification process.

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Abstract

This application provides a method for identifying the genesis of condensate gas, belonging to the field of petroleum geological analysis technology. The method includes: acquiring oil and gas samples under surface conditions, wherein the oil and gas samples are oil and gas samples of condensate gas reservoirs identified through PVT phase state analysis; conducting maturity analysis on the oil and gas samples to obtain maturity analysis results; and determining the genesis of the condensate gas reservoir based on the analysis results, wherein the analysis results include at least the maturity analysis results. This method, by combining oil and gas geochemical characteristic analysis and fluid characteristic analysis, achieves rapid and accurate identification of the genesis of condensate gas.
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