Methods for testing shale physics and chemistry properties 泥页岩理化性能试验方法
Analysis of borehole collapse cycling time for shale 泥页岩井壁坍塌周期分析
It is the density data of the shale 这是泥页岩密度数据。
Compressing parameter of ningming expansive shale for construction 宁明膨胀性泥页岩填料施工压实参数研究
Hard and crisp brittle shale , fragile shale 硬脆性泥页岩
Hard and crisp brittle shale fragile shale 硬脆性泥页岩
Strength reduction method with fem for analyzing the expansive soil cutting slope collapse and slide 膨胀性泥页岩填料的承载比
Oolitic limestones are rare and interbedded in the dark - gray mudstones and / or shales 这些砂岩和鲕粒灰岩既可单独成层,但更常见它们与深灰色泥页岩组合成薄互层。
Through the analysis of the stratigraphy and sedimentary facies of the research areas , the description model between the stratigraphic framework and deposite environment can be set up firstly by the transition from the " three horizons sandstone with two intercalated limestone horizons ' mn yanshiping area to shale and marl in amdo - zigetang co , and to oil shale in bilong co , then by the transition of the shallow water platform facies to the deep water continental shelf , slope , and to the deep water basin 通过对研究区地层和沉积相分析,建立起一个从北向南由雁石坪地层类型“三砂夹两灰”过渡为安多?兹格塘错地层类型泥页岩、泥灰岩,最后到比洛错地层类型黑色油页岩,由浅水台地相过渡到深水陆棚、斜坡,最后到深水盆地相的地层格架与沉积环境解释模式。
Water shutoff agent dsz - a is composed of inorganic particle . its specialities are low cost , easily flow , high strength and long valid period . the agent suits non - selective water shutoff in sand formation . dsz - a not only can plug high water - bearing formation , but also can plug case leakage . dsz - a has been applied on site and gotten good effect . it is a agent which has wide prospect 准噶尔南缘属山前推覆挤压构造,地质条件十分复杂.地层主要是泥岩与砂质泥岩为主,尤其是安集海河组,泥岩石中的蒙脱石含量高,存在龟裂、硬碎性页岩和强水敏、易造浆的泥页岩,易水化膨胀、坍塌、缩径.针对这些难点,采取确定井身轨迹设计及控制原则,平衡钻井及井控技术、固井工艺技术、复杂情况的预防和处理等技术措施,成功地进行了该地区的钻探作业,取得了良好的经济效益和社会效益