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- Title
Geological conditions, resource potential and exploration direction of natural gas in Junggar Basin.
- Authors
Yang Hai-bo; Wang Yu-tao; Guo Jian-chen; He Wen-jun; Lan Wen-fang
- Abstract
Junggar Basin is a large superimposed petroliferous basin in the western and has abundant oil and gas resources. However, there is an obvious difference between the degree of petroleum and natural gas ex-ploration.The paper attempts to analyze hydrocarbon accumulation, summarize accumulation model and predict favorable exploration fields and blocks for natural gas, to guide basin natural gas exploration on the basis of discovered gas reservoirs. The analysis suggests, there are three sets of source rocks(Carboniferous Permian Jurassic), five sets of natural gas reservoir-cap assemblages from Carboniferous to Paleogene.The gas reservoir is characterized by independent, near-source accumulation. There are 2 main formation models for natural gas in the basin; In-source-self-generation and self-preservation-unconformity-fault source-generated reservoir, represented by the Carboniferous from Ludong to Wucaiwan, which is the main accumulation model; near source-lower-generationand upper-accumulation-crushing anticline-fault secondary reservoir model, represented by the Paleogene in front of Nanyuan mountain.The favorable exploration fields mainly include; Ludong-Wucaiwan(Carboniferous), thrust belt in the south edge of the mountain front (Ju-rassic-Eocene of Paleogene), Zhongguai raised belt (mainly Permian) and deep basin(mainly Carboniferous and Permian). Increasing exploration in the fields is the important supporting measure to realize simultaneous development of oil and gas.
- Subjects
GEOLOGY; GAS reservoirs; NATURAL gas; NATURAL gas prospecting; CARBONIFEROUS Period
- Publication
Natural Gas Geoscience, 2018, Vol 29, Issue 10, p1518
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2018.08.013