摘要
苏里格气田东区盒8、山1段储层岩性主要以岩屑石英砂岩为主,同时发育石英砂岩及岩屑砂岩;填隙物以高岭石、方解石、伊利石、硅质为主,见少量的凝灰质及绿泥石;填隙物的高低直接影响了储层物性的好坏。通过铸体技术分析苏里格气田东区面孔率一般在2.0%以上,可将孔隙类型分为复合型、溶孔-晶间孔型、微孔型。最后通过参数综合评价将储层划分为3类,苏里格气田东区盒8、山1段储层主要为Ⅱ、Ⅲ类。
The pore-section area ratio of Eastern Sulige gasfield is generally more than 2.0 percent obtained by analysis ofcasting slices.The pore types can be divided into complex,dissolution–intergranular pores,and micro-pores.Finally,throughcomprehensive evaluation of the reservoir parameters,reservoirs are divided into 3 categories.Reservoirs of the He8 andShan1 Members in Eastern Sulige gasfield are mainlyⅢandⅢtype reservoirs.
作者
陈志华
李跃刚
李进步
杨勇
曹艳
CHEN Zhihua;LI YaoGang;LI JinBu;YANG Yong;CAO Yan(Exploration and Development Institute of Petro China Changqing Oilfield Company;Xi'an Changqing Scientific–Technology Engineering Company Ltd)
关键词
鄂尔多斯盆地
苏里格气田东区
储层特征
压汞
Ordos basin
Eastern Sulige gasfield
reservoir characteristics
mercury intrusion method
