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鄂尔多斯盆地中部马家沟组天然气储层特征
石油与天然气地质
1992年 13卷 第No.4期
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Title
RESERVOIR CHARACTERISTICS OF MAJIAGOU FORMATION IN CENTRAL ORDOS BASIN
Authors
Huang Yueming
Yang Yihua
Bao Hongping
Yu Huilong
摘要
鄂尔多斯盆地中部下奥陶统马家沟组天然气储集层,实际是一种潮坪膏盐岩与碳酸盐岩共生的萨布哈类型,大气淡水淋滤标志显著,可分为4种储集岩,受控于沉积和成岩环境。溶孔层与致密层的叠加配置,构成了马家沟组多个含气层段。
Abstract
The gas reservoirs of the Majiagou Formation,Lower Ordovician in central Ordos Basin could be divided into four types that are acturally a kind of sabkha composed of gypsum-salt on tidal flat associated with carbonate rocks with clear leaching marks of atmospheric water.
关键词：
天然气;
储层;
成岩作用;
淡水淋滤;
下奥陶统;
鄂尔多斯盆地;
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