1) Low-permeable clastic rocks
低渗透碎屑岩
2) low permeability rock
低渗透岩石
1.
Experimental study on coupled flow through low permeability rock under confining pressure;
低渗透岩石在围压作用下的耦合渗流实验
2.
Non-Darcy flow of single-phase water through low permeability rock;
低渗透岩石的单相水非Darcy流
3.
The effect of fluid-solid coupling on the seepage in low permeability rocks was measured for sandstone from the Changqing oil field on an FDES-641 triaxial system.
为研究低渗透岩石的流固耦合渗流规律,采用FDES-641驱替评价系统对采自长庆油田的砂岩岩样进行实验和分析。
3) low-permeability sandstone
低渗透砂岩
1.
An experimental study on oil migration and accumulation in low-permeability sandstone;
低渗透砂岩石油运移及成藏特征模拟实验
2.
Based on the comprehensive geological study of Niu-20, Chun-41, Zhuang-74 and Daluhu low-permeability sandstone oil pools, the research content and method of the geological model on the reservoir heterogeneity of low-permeability sendstone oil pools in Shengli oil district were sumarized systematically in this paper.
该文在牛20、纯41、桩74、大芦湖等低渗透砂岩油藏地质综合研究的基础上,系统总结了胜利油区低渗透砂岩油藏储层非均质地质模型的研究内容和方法。
4) low permeability sandstone
低渗透砂岩
1.
Threshold pressure gradient of low permeability sandstone;
低渗透砂岩渗流启动压力梯度
2.
The poor producing degree and the economic benefit of the low permeability sandstone by vague injection-production is caused by changeful sedimentary microfacies and high intra-layer and plane heterogeneity in whole oil reservoir set.
针对陕北低渗透砂岩小油田因沉积微相多变,层内和层间非均质性强,整个油层组笼统注采开发采出程度低以及经济效益差等现状,通过对顺宁长12油藏充分利用岩芯分析和测井曲线等基础地质资料,加强沉积微相研究,开展油藏小层精细划分对比及小层砂体连通性分析,明确了主要注采小层在空间上的展布规律,为优化注水开发方案和选用先进注采配套工艺技术措施提供了比笼统注采更为精细的开发地质依据。
3.
The structural fractures in fractured low permeability sandstone reservoirs have great effect on displacement efficiency.
裂缝性低渗透砂岩油层中的构造裂缝对驱油效率有明显影响。
5) clay shale with low permeability
低渗透页岩
6) low-permeability rock
低渗透岩石
1.
Stress sensitivity characteristics of low-permeability rocks;
低渗透岩石压敏特征研究
补充资料:火成碎屑岩
火成碎屑岩 pyroclastic rock 由火山碎屑物质堆积而成的岩石。又称火山碎屑岩。其特征介于熔岩与正常沉积岩之间。火山碎屑物的含量一般大于50%,其次为正常沉积物或熔岩物质。碎屑物的种类有岩屑、晶屑、玻屑、火山弹、浮岩及火山渣等。碎屑物的大小不一,常见棱角状。具集块结构、火山角砾结构、凝灰结构、火山尘结构等和假流纹状、斑杂状、火山泥球状、层理状等构造。分为两大类型:①熔结火山碎屑岩。由火山碎屑物经熔结而成。通常火山碎屑物含量大于90%。包括熔结集块岩、熔结角砾岩、熔结凝灰集块岩和熔结凝灰岩等。②正常火山碎屑岩。由火山碎屑物质经一定的压实作用形成。包括集块岩、火山角砾岩、火山凝灰角砾岩和凝灰岩等。其中凝灰岩分布最广。此外,火山碎屑岩与熔岩和正常沉积岩之间还存在一系列过渡类型。广义上,含火山碎屑物质大于10%的岩石都可称作火山碎屑岩。与火山碎屑岩有关的矿产有各种金属和非金属矿产(如Fe、Cu、Pb、Zn、S、B等)。如中国甘肃的白银厂铜矿床、镜铁山铁矿床等。 |
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