Prediction of the Deep Natural Gas Potential of Changling Fault Depression，Songliao Basin

Abstract

Abstract:

The deep beds of Changling fault depression is characterized by rich natural gas which can reach from 1.14×10¹²to 1.71×10¹² m³(the average value is 1.42×1012 m³) according to the results of petroleum system simulation. The hydrocarbon gases and CO^₂ are distributed in different areas: the east part of the depression is rich in hydrocarbon gases; the west part is rich in CO^₂; the middle part is rich in the both kinds of gases. The distribution of hydrocarbon gases are controlled by source rocks, while the CO^₂is closely related to the volcanic rocks and major basement faults. The comprehensive evaluations show five favorable regions, among which one is belong to typeⅠ, three belong to type Ⅱ, one belong to type Ⅲ. The typeⅠand type Ⅱ are the favorable regions to explore for the next step.

Key words: Changling fault depression, deep bed, volcanic rock, gas resource evaluation, Songliao Basin

CLC Number:

TE132.1

YAN Wei-Feng, LI Jian-Zhong, WANG Li-Wu, ZHANG Qiang-Chun1, Yang-Tao1, Ma-Yan,. Prediction of the Deep Natural Gas Potential of Changling Fault Depression，Songliao Basin[J]. Geoscience, 2009, 23(5): 902-907.

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Prediction of the Deep Natural Gas Potential of Changling Fault Depression，Songliao Basin

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