On the basis of this model, this thesis analyse the relationship between wellbore stability in different stress status and all sorts of parameters including deviation angle, relative azimuth angle, formation stress, pore pressure and rock mechanical parameters. 在此模型的基础上,本文分析了在不同地应力状态下井壁稳定性与井斜角、相对方位角(RAA)、地层孔隙压力以及地层岩石力学特性等参数之间的相互关系;
Being different from straight wells, the stability of directional wells is different according to the changeable deviation and relative azimuth angle. 与直井不同,定向井井壁稳定性随井斜角和相对方位角(RAA)的变化而不同;
There exist negative correlation between the optical thickness of effective radiation layer and the droplet effective radius near cloud top, solar zenith angle and satellite zenith angle, not obvious for the relative azimuth angle. 有效辐射层的光学厚度与云上层有效粒子半径、太阳天顶角、卫星天顶角等因素呈反相关,与相对方位角(RAA)无必然联系。
The cost of the system is reduced and the structure is predigested, and it makes the detection system can measure distance, relative velocity and azimuth angle at the same time. 这样做既提高了系统的经济性,简化了结构,又使得系统具有了同时测量目标距离、相对速度和方位角的功能。
Aiming at two satellites formation, the paper studies the method of relative autonomous orbit determination between two satellites when the measure parameters are relative distance, azimuth angle, and elevation angle. 针对2颗卫星编队飞行的情形,研究了星间位置测量量为相对距离、方位角和俯仰角时的卫星相对轨道自主确定方法。