cuttings density

The dependences of the cuttings regime upon working states of diamond bit face, bottom unevenness and chips size considered and corresponding suggestions given.

论述了正常钻进的条件,提出了合理岩屑规程是保证正常钻进的关键和设计钻头的主要依据之一,讨论了岩屑规程与金刚石钻头唇面工作状态、孔底表面粗糙度和岩屑粒度的关系,提出了相应的建议。

The T3x gas reservoirs in west Sichuan Depression are deep terrestrial tight clastic rock gas reservoirs which are characterized by low permeability, thin inter-bed, superimposition of multi-layers, and strong heterogeneity.

川西坳陷须家河组气藏属于深层陆相致密碎屑岩气藏,具有致密、低孔渗、薄层交互、多层叠置和强非均质性的特点。

The Influence of Cutting Element Dimension,Linear Speed and Bit Load Stabilization on Chip Grain-Size and Effect of Rock Failure

切削具的线性尺寸、线速度、轴载的稳定性对岩屑粒度和破岩效率的影响

In lithology, the calcareous sandstone is of coarse grain and fairly well sorted.

岩性主要为粒度相对较粗、分选较好的碎屑岩。

pellet-bioclastic grainstone

球粒生物屑粒状灰岩

The strength and density of debris retards or prevents coarse particles from sinking.

这种高强度和高密度的岩屑会妨碍或阻止粗颗粒下沉。

Loose fragments or grains that have been worn away from rock.

岩屑从岩石上磨损下来的疏松的石粒或碎屑

Clastic rocks are composed of individual fragments of mineral or rock. The fragments may range in size from huge boulders to microscopic particles.

碎屑岩是由岩石和矿物碎屑的单体组合而成，这些碎屑物质的粒度可以是巨大的确石到微细的颗粒。

Probability cumulative grain size curves in terrigenous depositional environments of the Paleogene in Huimin Sag

惠民凹陷古近系碎屑岩主要沉积环境粒度概率累积曲线特征

GRAIN-SIZE DISTRIBUTION OF EOGENE CLASTIC ROCKS AND THEIR ENVIRONMENTAL INTERPRETATION IN NORTH JIANGSU

苏北盆地下第三系碎屑岩的粒度分布特征及其环境解释

The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.

卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。

subfeldspathic lithic arenite

亚长石质岩屑砂屑岩

loose material (stone fragments and silt etc) that is worn away from rocks.

从岩石上磨损下来的疏松的石粒或碎屑。

Texture is the key to naming the major clastic rocks. For example, conglomerate is composed of fragments larger than 2 millimeters.

结构是碎屑岩定名的重要因素，例如，砾岩是由粒径大于两个毫米的碎屑物组合而成;

lithic arkosic wacke

岩屑长石砂岩质杂砂岩

sparry intraclastic calcarenite

亮晶内碎屑砂屑灰岩

Study of Formation and Strength Features of Clay Gouged Intercalation in Red Fragment Rock Series

红色碎屑岩系中泥化夹层组构及强度特性研究

Quantitative study of bioclastic grains in carbonate rocks:Theoretical analysis and application of point-counting method

碳酸盐岩生屑颗粒定量研究——点计数法的理论分析与应用

GRAIN-SIZE CHARACTERISTICS OF THE SIHAI TEPHRA SHEET AND THEIR GEOLOGICAL IMPLICATIONS

吉林龙岗四海火山碎屑物粒度分析与地质意义

Optimal Description of Lithology by Statistical Methods of Gray Level for Cuttings;

基于灰度统计特征的岩屑岩性最优描述方法研究