海相油气地质2017，Vol.22Issue(1)：69-74,6.DOI:10.3969/j.issn.1672-9854.2017.01.009
云南曲靖地区下寒武统筇竹寺组页岩气成藏地质条件及有利区预测
Geological Conditions for Shale Gas Accumulation and Favorable Area Prediction in Qujing of Eastern Yunnan
摘要
Abstract
Based on the field research, core observation, geochemical analysis and gas desorption analysis, the shale gas enrichment conditions were studied and discussed in Qiongzhusi Formation of the lower Cambrian in Qujing area of Eastern Yunnan. It is shown that the thickness of black shale in Qiongzhusi Formation is 237~363m, the TOC values varied in a wide range with the majority of them higher than 2.0%, the average of maturity(Ro) is 3.06%, the average of quartz content is 53.18%, and the carbonate mineral content averaged 18.82%. The primary pore space are microcracks in mud shales, intergranular pores, intragranular pores and organic pores. The comprehensive analysis showed that the study area has a good potential for shale gas exploration. In addition, according to the lower gas desorption from several wells in the field, it can be deduced that the key for the enrichment of shale gas is preservation conditions in East Yunnan, and the Malong area could be the target for shale gas exploration.关键词
页岩气/成藏条件/有利区预测/筇竹寺组/下寒武统/曲靖地区/云南Key words
Shale gas/Accumulation condition/Favorable area prediction/Qiongzhusi Formation/Lower Cambrian/Qujing area/Yunnan分类
能源科技引用本文复制引用
张聪,包书景,石砥石,胡琳,苑坤..云南曲靖地区下寒武统筇竹寺组页岩气成藏地质条件及有利区预测[J].海相油气地质,2017,22(1):69-74,6.基金项目
本文受国土资源部全国油气资源战略选区调查项目"南方油气资源战略选区调查"(编号:XQ2014-04)和全国地质调查评价专项"页岩气有利目标区调查评价与优选"(编号:1212291413012)资助 （编号:XQ2014-04）
