石油实验地质2016，Vol.38Issue(4)：473-479,7.DOI:10.11781/sysydz201604473
川东南页岩气储层脉体中包裹体古压力特征及其地质意义
Trapping pressure of fluid inclusions and its significance in shale gas reservoirs, southeastern Sichuan Basin
摘要
Abstract
Facies studies on fluid inclusions revealed that aqueous and gas⁃bearing inclusions are distributed in quartz and calcite veins of shale gas reservoirs in wells Jiaye A, Nanye A and Pengye A in the southeastern Sichuan Basin. Raman probe analyses showed that gas⁃bearing inclusions mainly contain CH4 . The homogenization temperature of aqueous inclusions ranges from 215.8-245.4 °C in quartz veins of well Jiaoye A. The homogenization temperature of aqueous inclusions ranges from 214.4-240.8 °C in quartz veins in well Nanye A. The homogenization temperature of aqueous inclusions ranges from 177.8-210.4 °C in calcite veins in well Nanye A. The homogenization temperature of aqueous inclusions ranges from 128.5-156.4 °C in calcite veins in well Pengye A. The trapping pressure of gas⁃bearing inclusions and aqueous inclusions ranges from 114.9-130.5 MPa in quartz veins in well Jiaoye A. The trapping pressure of gas⁃bearing inclusions and aqueous inclusions ranges from 124.0-151.5 MPa in quartz veins in well Nanye A. The trapping pressure of gas⁃bearing inclusions and aqueous inclusions ranges from 124.0-151.5 MPa in quartz veins in well Nanye A. The trapping pressure of gas⁃bearing inclusions and aqueous inclusions ranges from 114.0-122.3 MPa in calcite veins in well Nanye A. The trapping pressure of gas⁃bearing inclusions and aqueous inclusions ranges from 32.5-43.0 MPa in calcite veins in well Pengye A. Fluid inclusions in these wells were trapped during the Yanshanian period. Reservoirs were over pressured when fluid inclusions were trapped in wells Jiaoye A and Nanye A, but under normal conditions in well Pengye A. Pressure coefficients when trapping showed similar regularities as measured well pressure, inferring that the gas preservation conditions in wells Jiaoye A and Nanye A are better than that of Pengye A.关键词
古压力/包裹体/储层/页岩气/龙马溪组/川东南Key words
paleo-pressure/fluid inclusion/reservoir/shale gas/Longmaxi Formation/southeast Sichuan Basin分类
能源科技引用本文复制引用
席斌斌,腾格尔,俞凌杰,蒋宏,申宝剑,邓模..川东南页岩气储层脉体中包裹体古压力特征及其地质意义[J].石油实验地质,2016,38(4):473-479,7.基金项目
国家自然科学基金“古生界页岩含气性原生有机质控制作用研究”（ U1663202）和中国石化科技部项目（ P15097，P14156）资助。 （）
