石油实验地质2017，Vol.39Issue(5)：625-632,8.DOI:10.11781/sysydz201705625
万安盆地油气地质特征及其资源潜力新认识
New understanding of oil and gas geological characteristics and resource potential in Wan' an Basin
摘要
Abstract
The geological conditions, hydrocarbon distribution and enrichment regularity in the Wan' an Basin were systematically analyzed based on the latest seismic and test data. Some new understanding of oil and gas geological characteristics and resource potential were obtained. The Wan' an Basin experienced two tectonic evolution stages:fault depression phase and depression phase. Inshore limnetic, shore delta, fan delta, coastal?shallow sea, and bathyal facies deposited. Sediments are from west to east. The major source rocks are mudstone, shale, coal and coal?bearing mudstone in the Oligocene and Miocene, which mainly distributed in the central and northern depressions. There are three kinds of reservoirs, respectively the sandstones of Oligocene to Pliocene, the carbonate rocks of Middle to Upper Miocene, and the bed rocks of pre?Tertiary. There are two sets of regional cap rocks, the Pliocene-Quaternary and the Upper Oligocene-Lower Miocene. There are three favorable oil?and?gas regions, the west, the central and the southern zones. Oil and gas potential of the Wan ' an Basin is tremendous, and the geology resources of oil and gas are 29.38×108 t and 34897×108 m3 , respectively.关键词
构造演化/沉积特征/油气地质条件/油气富集规律/万安盆地Key words
tectonic evolution/sedimentary characteristics/oil and gas geological condition/enrichment regu⁃larity/Wan' an Basin分类
能源科技引用本文复制引用
张厚和,赫栓柱,刘鹏,廖宗宝,徐庆梅,朱筱敏,徐耀辉..万安盆地油气地质特征及其资源潜力新认识[J].石油实验地质,2017,39(5):625-632,8.基金项目
国家科技重大专项(2011ZX05025-005)和全国油气资源动态评价(2013,2015)资助. （2011ZX05025-005）
