Through Galerkin Finite Element Methods, the calculation shows the volume of gas diffusion increases as the time prolongs of the drilling fluid being undisturbed and gas diffusion in water-based drilling fluid with oil is larger than that in water-based drilling fluid. 用伽略金有限元方法求解,计算表明,气体扩散量随钻井液静置时间延长而增加,水基钻井液加入油后与不加油的钻井液相比增大了气体扩散量。
Experimental Study on Undisturbed Measurement of Gas Bubble Rising Velocity Using Infrared Emitting Diode and Photodiode 利用红外对管进行无干扰气泡上升速度测量的实验研究
Array induction logging as an important resistivity logging method could exactly measure the undisturbed zone resistivity and reservoirs evaluation of oil and gas. 阵列感应测井作为重要的电阻率测井方法就是要准确测量原状地层电阻率和进行油气层评价。