鄂尔多斯盆地东缘黄甫区块致密砂岩储层展布特征

TIGHT SAND GAS RESERVOIR DISTRIBUTION FEATURES OF HUANGFU BLOCK IN THE EASTERN ORDOS BASIN

为评价鄂尔多斯盆地黄甫区块的致密砂岩气资源,利用二维地震资料对区块内的砂体展布进行了解释,结果显示该区块共发育石千峰组千5砂岩、下石盒子组盒8砂岩、山西组山2砂岩和太原组太2砂岩四套砂体,估算致密砂岩气总资源量为3040.82亿m3,可优先在区块西南部的伊陕斜坡构造单元上加大勘探力度,以便早日探明该区的致密砂岩气资源和实现商业化开发。

For the purpose of evaluating the tight sand gas resources of Huangfu block in the eastern Ordos Basin,2D seismic data were used to interpret the sand body distribution features in Huangfu block. The results show that there are four sets of sand body( Qian5 sand body of upper Permian,He8 sand body of lower Permian,Shan2 sand body of lower Permian and Tai2 sand body of upper Carboniferous) developed in this area. Estimated tight sand gas reserves is about 304 billion cubic meters,in order to obtain proven resources as soon as possible and realize commercial development,more exploration efforts should be executed in the southwestern part first.