According to the nature, Guangxi limestone is separated into three types: pure limestone, siliceous limestone, mixed sand shale or limestone of igneous rock.
广西的石灰岩按性质可分为纯质石灰岩、夹硅质石灰岩、夹砂页岩或火成岩的石灰岩三种类型。
Applying the stimulation with fracturing for sand shale in Daqing volcanic gas reservoir, the success rate of operation is only 36 percent. The result of the stimulation is bad.
火山岩气藏应用砂泥岩压裂技术进行增产改造，施工成功率只有36%，增产效果差。
They drill down to the shale, then go sideways and inject high-pressure water, sand or other material into the rock.
当钻到页岩时，从侧面将高压水、沙子和其它东西注入页岩内。
The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.
页岩中风成粉砂沉积的发现，可以进一步为研究有关湖相页岩和第四纪纹泥的古气候变化、正确恢复古湖泊沉积环境提供良好的指标。
The meaning of sand or shale content of seismic horizon is generally different from that of geologic horizon.
地震层定量解释的砂泥含量与地质研究中岩石的砂泥含量意义不同。
Formations to be cored are Tertiary age sand and shale.
待取芯的地层包括第三纪砂层和页岩。
Horizontal maximum and minimum principal stresses are nearly equal in shale formation, and very different in sand formation.
在泥岩段水平最大与最小主应力基本相等或相差甚小，在砂岩段才呈现较大差异。
The burnability of the cement raw meal prepared by shale or yellow-sand has been studied in this paper.
本文研究了以黄沙或页岩代替粘土质原料配制水泥生料的易烧性。
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock.
五道梁群以灰白色、灰黄色灰岩为主，含有砾岩、砂岩，夹有少量泥岩、油页岩和未固结砂泥沉积。
Based on the results of dispersion experiments on cores of sand and shale, the paper analyzed the variability of acoustic dispersion for dry and water-saturated cores.
结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点。
Coal gas reservoir has different physical properties from sand and shale stone formation, it is difficult for conventional test to get formation parameters.
煤气储层具有与砂泥岩地层不同的储层物性，常规测试很难获取地层参数。
The overlying strata of the coal bed roof are dominated by sedimentary rocks such as shale, sand stone and limestone, whose physical and mechanic properties differ greatly.
煤层顶板覆岩一般以页岩、砂岩、灰岩等沉积岩为主，其物理力学性质差异很大。
There are many factors to affect identification of oil and gas bearing layers in the sand-shale formation.
在砂泥岩地层中，影响油、气层识别的因素较多，尤其在复杂地质条件下准确识别油气层难度更大。
There are many factors to affect identification of oil and gas bearing layers in the sand-shale formation.
在砂泥岩地层中，影响油、气层识别的因素较多，尤其在复杂地质条件下准确识别油气层难度更大。
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