The Toutunhe sandstone reservoir in Niuquanhu area of Santanghu oilfield is mainly lithic sandstone,with an average porosity of 19.

 
  • 吐哈油区三塘湖油田牛圈湖区头屯河组砂岩储层主要为岩屑砂岩,平均孔隙度为19。
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