In a water flooded sandstone oilfield, keeping a reasonable formation pressure is important for both the development effect and the total development benefit.
对于注水开发砂岩油田，保持合理的地层压力既关系到油田开发效果，又影响到油田开发总体效益。
So that a large amount of low-mature oil was generated and subsequently migrated into sandstone belt with first secondary porosity created by the formation water released from clays.
这样，大量低成熟石油能够生成，并随着粘土释放出的层间水运移到砂岩的第一次生孔隙密集在中。
The alterations in the formation of the phreatic water oxidation sandstone type uranium deposits can be divided into two types.
酸碱度和氧化还原电位是对砂岩型铀矿后生蚀变水溶液中铀溶解和沉淀有较大影响的两个因素。
It may be concluded that the sedimentary facies, tectogenetic movement, the formation water and geothermic gradient are all important factors to form the oil-bearing sandstone.
结果表明，沉积相、构造运动、地层水的性质及地温梯度等都是促成含油砂岩形成的重要因素。
It is found that the oil effective permeability of low middle porous sandstone is related with the porosity, water saturation and shale volume of formation.
研究发现，油的有效渗透率与中低孔隙性储层的孔隙度、含水饱和度及泥质含量有关。
Knowing what the permeability of the orebody will let you know how much water you can get through the sandstone formation.
今夕何通透性矿体会让你知道你能得到多少水通过砂岩组成。
Jidike formation of Neogene is composed of sandstone and mudstone and gypsum deposited in wide and shallow salt-water lake evironments.
苏维依组为冲积扇—湖泊相砂砾岩和砂泥岩沉积； 上第三系吉迪克组以砂泥岩为主夹膏岩，属宽浅盐湖沉积。
Jidike formation of Neogene is composed of sandstone and mudstone and gypsum deposited in wide and shallow salt-water lake evironments.
苏维依组为冲积扇—湖泊相砂砾岩和砂泥岩沉积； 上第三系吉迪克组以砂泥岩为主夹膏岩，属宽浅盐湖沉积。
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