中上扬子区海相层系流体特征与油气保存条件  

Fluid characteristics and hydrocarbon preservation conditions in marine facies strata of middle-upper Yangtze region

作　　者：刘光祥[1,2] 沃玉进 潘文蕾[2] 张长江[2] 

机构地区：[1]中国地质大学(北京)能源地质学院,北京100083 [2]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151 [3]中国石油化工股份有限公司石油勘探开发研究院,北京100083

出　　处：《石油实验地质》2011年第1期17-21,27,共6页Petroleum Geology & Experiment

基　　金：国家科技重大专项项目(2008ZX05005-002)资助

摘　　要：通过对中上扬子区地层水化学特征、地层水氢氧硫同位素、天然气组成特征、天然气烷烃碳同位素、甲烷氢同位素、天然气轻烃组成特征等的研究,结合油气显示及产出情况将中上扬子区流体特征划分为5大区,即:川中—川西区(Ⅰ)、川北—川东—川南区(Ⅱ)、江汉盆地南部(Ⅲ)、黔东南坳陷区(Ⅳ)和湘鄂西区、黔中及邻区、江汉盆地北部等区(Ⅴ),其对应的油气保存条件逐渐变差。Based on studies of formation water chemical characteristics, H, O and S isotopes in formation water, natural gas composition, C isotope in alkane, H isotope in methane and light hydrocarbon composition in the middle-upper Yangtze region, combined with petroleum shows and productions, the research area was divided into 5 blocks according to fluid characteristics： the middle and western Sichuan Basin （Ⅰ）, the northern, eastern and southern Sichuan Basin （ Ⅱ ）, the southern Jianghan Basin （ Ⅲ）, the depression in the southeast of Guizhou Province （Ⅳ）, as well as the west of Hunan and Hubei Provinces, the middle of Guizhou Province, and the northern Jianghan Basin （Ⅴ）. Preservation conditions decrease from Ⅰ to Ⅴ.

关 键 词：氢氧硫同位素 碳氢同位素 地层水 天然气 油气保存条件 海相层系 中上扬子区 

分 类 号：TE122.34[石油与天然气工程—油气勘探]