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- triaxial stress sensitivity 三轴应力敏感
- Stress sensitivity has relationship with water saturation of reservoirs. 低渗透气藏岩心的孔隙度随有效压力的增大呈指数关系递减。
- Stress sensitivity of rock is closely related to its compressibility. 岩石的应力敏感程度与岩石的压缩系数之间存在密切的关系。
- It is frequently accelerated by the presence of an active environment and by triaxial stress. 激化环境和存在三轴应力,常可加速这种破坏。
- This paper introduces two three-moduli incremental non-linear stress-strain relationships under triaxial stress condition. 介绍了三轴条件下的两个三模量增量非线性应力-应变关系式。
- The test device and method on the water conduction coefficient for large sample under triaxial stress state are introduced. 介绍了三轴应力状态下测定大煤样导水系数的实验装置与实验方法。
- A theoretical formula is proposed between the stress sensitivity index and the compressibility of rock. 文中建立了岩石应力敏感指数与压缩系数之间的理论关系式。
- Based on the influence of stress sensitivity on the logging surface fracturing pressure,an interpretation model for. 地层破裂压力是钻井液密度确定、井身结构和压裂设计施工的基础数据。
- Aimed at the problems of the theory of biaxial stress ellipse, a new method for casing strength design under combined loads the triaxial stress theory is put forward. 针对双向应力椭圆理论存在的问题,提出了解决组合载荷下套管柱强度设计的三向应力圆理论;
- The monotone property of multivariate function proved that the maximum stress strength point exists on the inner surface of casing under the triaxial stress conditions. 通过实例计算,对比分析了用“三向应力圆”理论与其他几种理论计算的抗挤强度值。
- The more compressible the rock is,the higher the stress sensitivity index will be. 岩石的压缩性强,岩石的应力敏感程度就高。
- The influenes of triaxial stress states on the elastic wave velocities of clayey sandstone,and claystone and hard siliceous sandstone have been determined by experiments. 岩石所受的三向应力状态对其弹性波传播性质有一定的影响，此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。
- LI Peng,LI Zhen,LIU Jin-yu.Slaking test study of coarse aggregate under high triaxial stress condition[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(2):231 -234. [10]李鹏;李振;刘金禹.;粗粒料的大型高压三轴湿化试验研究[J]
- The research results show the force sensors can be constructed using amorphous alloy materials with high stress sensitivity. 研究结果表明具有大的应力敏感性的非晶带材料可用来制作力传感器。
- According to this formula,due to the weak compressibility of rock,the stress sensitivity is extremely minus,which can be neglected in produc... 根据该公式,油藏岩石的压缩系数很小,应力程度极其微弱,生产过程中可将其忽略。
- The factors including clay content &calcite cement have an important effect on the stress sensitivity of low-permeability rocks. 粘土总量和有无方解石胶结对低渗透岩石压敏效应的影响更为显著。
- It was found that the toroidal cores of Fe73.5Cu1Nb3Si15.5B7 alloy can obtain a lower stress sensitivity after proper heat treatm... 结果表明,通过合适的热处理工艺可以降低合金的应力敏感性,使得该合金绕制的铁芯在相对变形率为5%25时,磁导率指标的变化率小于40%25。
- Contraposethe fracture reservoirs'peculiar deformation characteristics, fracture's stress sensitivity, closure mechanism and closure law have been detail studied. 针对裂缝性储层所特有的变形特征,对裂缝性储层的应力敏感性及裂缝的闭合机理和规律进行了详细的研究。
- The caculations and anolyses of examples show that the application of triaxial stress theory in casing string design can take most factors into consideration and obtain the results with high preci... 给出了应用计算机实现套管柱设计的方法和步骤,并编制了相应的计算软件,结合具体设计实例,通过计算分析表明,应用三轴强度理论进行套管柱设计具有分析全面、计算精度较高的特点。
- However the stress sensitivity of the alloy is so high that the permeability may decrease dramatically by slight mechanical deformation of the toroidal cores. 但该合金应力敏感性大,微小的变形导致磁导率的大幅度降低。
