1. In high-inclination drilling, cuttings easily accumulate in the section of 40-60 °inclination angle and form cuttings beds which lead to accidents of bit bouncing and drill pipe sticking. 大斜度钻井过程中，钻屑在40～60°井段易堆积形成岩屑床，对井下安全危害极大，容易引发憋钻和卡钻事故。
2. The main analysis content includes transformation rule of camber angle, kingpin inclination angle, caster angle, toe in, wheel grounding distance and steering error. 主要分析内容有：车轮外倾角、车轮内倾角、主销后倾角、前束、轮距及转向误差的变化规律。
3. The main analysis content includes transformation rule of camber angle, kingpin inclination angle, caster angle, toe in, wheel grounding distance and steering error. 主要分析内容有：车轮外倾角、车轮内倾角、主销后倾角、前束、轮距及转向误差的变化规律。
4. Firstly, this paper gave out definationsof parameters, the well inclination, azimuth angle, high-edge face angle of the drilling tool and magnetic face angle for the analysis of the MWD tool. 文章首先对随钻测斜仪所测参数进行定义．包括井斜角、方位角、高边工具面角及磁性工具面角，然后分析了一系列确定井眼参数的数学模型。
5. Firstly, this paper gave out definationsof parameters, the well inclination, azimuth angle, high-edge face angle of the drilling tool and magnetic face angle for the analysis of the MWD tool. 文章首先对随钻测斜仪所测参数进行定义．包括井斜角、方位角、高边工具面角及磁性工具面角，然后分析了一系列确定井眼参数的数学模型。
