Methods and Applications of Geochemical Trace for Natural Gas Migration

Abstract

Abstract: Many geochemical indices change regularly in the course of natural gas migration. This paper reviews previous researches on geochemical indices of gas migration, by which the gas migration direction of Wen-23 gasfield in Dongpu sag is judged with some indices. The result shows that the coal-formed gas from deep Qianliyuan sub-sagin migrated upward firstly along Wendong fault, then northwestward along Wen-105 fault and Es4 reservoir sands, and finally accumulating into gasfield in structural highs.

Key words: natural gas, migration, geochemistry, Wen-23 gasfield

CLC Number:

TE122.1

LI Zong-liang, JIANG You-lu. Methods and Applications of Geochemical Trace for Natural Gas Migration[J]. Xinjiang Petroleum Geology, 2008, 29(6): 753-755.

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