The Rock - Sandstone SedimentaryRock Type:Clastic Related to:Shale,conglomerate,siltstone,breccias Color:highly variable Texture:Sand sized grains Origins:River, ocean, glacier and desert deposits Common Minerals:Quartz,feldspars,micas,calciteandclays ...
Rock constituentsGrain sizeMaturityBased on the microscope observation, the sedimentary characteristics of 20 groups sandstone samples were analyzed. All sandstones are taken from Shendong Coal Mine Area. The observation contents consist of rock constituents, grain size, textural and compositional maturity,...
Sedimentary characteristics and favorable reservoir prediction of Longtan Formation in Huangqiao area, Jiangsu Province (in Chinese). Petrol Geol Exp, 2012, 34: 395–399 [李建青, 蒲仁海, 武岳, 等. 江苏黄桥地区龙潭组沉积相与有利储层预测. 石油实验地质, 2012, 34: 395–399]. Google Scholar [...
Damage Characteristics of Sandstone Subjected to Coupled Effect of Freezing-Thawing Cycles and Acid Environment However, a few researches have been performed to investigate the permeability evolution during complete failure process of reservoir sandstones, which is very important for improvement of oil recov...
Therefore, a new loading device was developed to study the rock-arch instability characteristics of the plate, and particle flow code was used to further probe into the microscopic damage of the rock plate under the concentrated and the uniform loading, respectively. 2. Loading Experiment of Rock...
The aim of our research was to determine the mechanisms of wear on roller cone bit materials according to the characteristics of the steel material of the roller cone bit and the characteristics of the rock material, in this case, sandstone on the drilling regime. The results of the discovered...
sand/clay sedimentary rock noun a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.) 更多 英文 词典里"sandstone"的近义词 英文 叙词表中“sandstone"的另一个词是arenaceous rock。 arenaceous rock 更多 sandstone 的语法和变格 thumb|right sandstone (co...
Aeolian sandstones (see e.g., Pettijohn et al., 1973) are the sedimentary rock type that is most similar to chondrites, based on their shared characteristics (Table 11.2). Both are detrital. Additional points are that some individual chondrules are aggregates (see below, and figures in ...
The Yanchang Formation can be divided into Chang 10 to Chang 1 members from bottom up. The sedimentary characteristics reflect the evolutionary process of lake basin formation, expansion and extinction. The Chang 7 Member was deposited during the largest lake transgression. The black shale deposited ...
The tools are characterized by high SiO2content ranging from 75.34 to 96.58 wt%. The maximum value was reached in ‘Red − 3’ and minimum values in ‘Red − 2’ and ‘Red − 4’ groups. TiO2, Al2O3and Fe2O3totalshowed similar characteristics; they reached the highe...