地质学报2012，Vol.86Issue(7)：1132-1142,11.
中国古生界海相烃源岩生烃潜力评价标准与方法
Evaluation Criterion and Methods of the Hydrocarbon Generation Potential for China's Paleozoic Marine Source Rocks
摘要
Abstract
The evaluation of the hydrocarbon generation potential for the Proterozoic—Paleozoic marine source rocks with the highly maturity to over-maturity in China's marine sediment basins has long been disputed, and there have been no applicable evaluation criteria and methods. The geochemical analyses for low-mature Proterozoic—Paleozoic marine mudstone/shale and carbonatic rock reveal that there are distinctive linear relations between the total organic carbon content (TOG) and generation potential of different types of immature or low-mature Proterozoic—Paleozoic marine source rocks. Judged from hydrocarbon potential of rock pyrolysis, there are no big differences of the lowest TOC threshold (TOC must be greater than 0.5%) for the mudstone/shale and marine carbonate, both of which are regarded as effective potential source rocks. The source rock with TOC value less than 0. 75 % is poor of hydrocarbon potential for the Proterozoic to the Lower Paleozoic marine source rocks, and TOC 0. 75%~1. 5%, fair; 1. 5%~2. 0%, good; 2%~4%, very good; >4%, excellent. The TOC limit of each level for the Upper Paleozoic shale is slightly higher than that of the Lower Paleozoic shale. The initial potential of source rocks with highly or over-maturity in Chinas Proterozoic—Paleozoic marine sediment basins can be calculated by its TOC and the equations obtained from the immature or low-mature marine source rocks.关键词
海相烃源岩/评价标准与方法/古生界/有机碳/生烃潜力Key words
marine source rock/ evaluation criteria and method/ Paleozoic/ organic carbon/ generation potential引用本文复制引用
陈建平,梁狄刚,张水昌,邓春萍,赵喆,张蒂嘉..中国古生界海相烃源岩生烃潜力评价标准与方法[J].地质学报,2012,86(7):1132-1142,11.基金项目
本文为国家"十五"重点科技公关课题(编号2004BA616A020-01-01)、中国石油天然气股份公司科技项目(编号04051-04)及中国石化股份有限公司科技项目(编号2004-08)共同资助成果. （编号2004BA616A020-01-01）
