The Distribution Rules of Gas in Shan 2 Member in Yulin Area of Changqing Gas Field

Abstract:

Yulin area of Changqing gas field in Ordos basin has the favorable conditions for gas accumulation in Shan 2 Member, which is the main productive layer to increase reserve and production. Based on the research of gas pool forming conditions, the distribution rules of gas in Shan 2 Member in Yulin area of Changqing gas field can be concluded: coals, swap dark mudstones and delta front sandbodies are well-developed vertically, the conditions of reservoir-forming combination for self-generation and self-preservation are processed; the sandbodies developed in submerged distributary channel and mouth bar microfacies of delta front have a high content of quartz, which have a good physical properties and a high gas production. There is a good relationship between the distribution of gas pools and the maturity of sandstone, the value 6 of maturity index (86% quartz content) can be used to delineate the zones of gas enrichment and productivity. This rule can guide the exploration and production of this area in next step.

• Periodical: Advanced Materials Research (Volumes 962-965)
• Pages: 506-511
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.962-965.506
• Online since: June 2014
• Authors: Jing Chao*
• Keywords: Changqing Gas Field, Distribution Rules, Maturity, Quartz Content, Shan 2 Member, Yulin Area

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DOI: 10.1016/s1876-3804(09)60099-9

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