特种油气藏2017，Vol.24Issue(1)：22-26,5.DOI:10.3969/j.issn.1006-6535.2017.01.005
辽河坳陷雷家致密油烃源岩评价标准探讨
Discussion of Leijia Source-Rock Evaluation Criteria in Liaohe Depression
摘要
Abstract
The source-rock lithology, TOC, organic matter maturity, hydrocarbon generation potential and other aspects are analyzed to determine the Shahejie-4 tight oil source-rock evaluation criteria and favorable exploration areas in Leijia.Analysis indicates that the source-rock in this area is characterized by high TOC, medium maturity, favorable organic matter type and high oil-generation potential.Shahejie-4 tight oil source-rock is considered as favorable source-rock in this area and the corresponding lithology is dominated by carbonate shale, argillaceous dolomite (limestone) and clay shale, followed by felsic shale.The source-rock in this area is classified into Category-Ⅰ, Category-Ⅱ and Category-Ⅲ according to the organic matter type, TOC, Ro, ST and other indicators.Category-Ⅰ source rock in this area mainly distributes in the main body of Chenjia Depression and the corresponding area is 54.9 km2.Category-Ⅱ source rock in this area mainly distributes in the outer edge of Chenjia Depression and the corresponding area is 153.0 km2.Category-Ⅲ source rock in this area mainly distributes in the east side of Chenjia Depression and the corresponding area is 51.0 km2.The favorable exploration areas of Category-Ⅰ mainly distribute within Chenjia Depression.The favorable exploration areas of Category-Ⅱ mainly distribute in the side edge of Chenjia Depression and the main body of Taian Depression in the north.The favorable exploration areas of Category-Ⅲ mainly distribute in the east side of Chenjia Depression.This research could provide certain guidance for the identification of favorable exploration areas in this area.关键词
致密油/烃源岩/评价标准/有机质成熟度/生烃潜力/雷家地区/辽河坳陷Key words
tight oil/source-rock/evaluation criteria/organic maturity/hydrocarbon potential/Leijia/Liaohe Depression分类
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单俊峰,王佳林,韩霞..辽河坳陷雷家致密油烃源岩评价标准探讨[J].特种油气藏,2017,24(1):22-26,5.基金项目
国土资源部"全国油气资源战略选区调查与评价"部分成果(2011QYXQ15-07-04) （2011QYXQ15-07-04）
