Genetic Type and Distribution Rule of Natural Gas of Kongdian Formation in Weibei Sag

• 责任者：Shen Pu (School of Geo-Resources and Information ; China University of Petroleum ; Dongying 257061 ; China) ; Jin Qiang
• 刊名：Journal of Earth Sciences and Environment
• 出版年：2010
• 卷期：32(3)
• 关键词：孔店组 ; Kongdian Formation ; 天然气成因 ; natural gas origin
• 页码：p.252-256
• 图表：5 illus., 19 refs.
• 分类号：1003
• issnNo：ISSN1672-6561
• isbnNo：CN61-1423/P

 Based on natural gas composition, carbon isotope and light hydrocarbon data, genetic type and distribution rule of natural gas of Kongdian Formation in Weibei Sag were discussed with the theory and discriminant diagram of natural gas genetic type and reservoir condition. The results showed that volume contents of CH₄, heavy hydrocarbon and nonhydrocarbon were high, low and extremely low for natural gas in Weibei Sag, respectively; natural gas from well Tuan-4 in southern clinoform zone was biogas;natural gas in the southern of Duhu nose tectonic zone was oil type associated gas with biogas;natural gas in the middle of Duhu nose tectonic zone was typical oil type associated gas;natural gas in southern rim and eastern of northern subsag was coal type gas with oil type gas; northern deep subsag was the prospecting area for coal type gas.