目前 ,钻探及修井作业中 ,司钻在视角很小的情况下 ,目测游车大钩的位置是很不容易的 ,尤其在大风、下雨和夜晚是非常困难的 ,有可能误操作而发生游车大钩顶天车、溜钻等恶性事故 ,致使钻井设备、井口装置、人身安全造成重大损失。为此 ,兰州石油机械研究所研制了游车大钩高度? At present, drilling and workover operations, the driller in the case of small perspective, the visual location of the hook is not easy, especially in the wind, rain and night is very difficult, may be misoperation and Occur in a large hook overhead traveling car, rolling drill and other serious accidents, resulting in drilling equipment, wellhead devices, personal safety caused significant losses. To this end, Lanzhou Petroleum Machinery Research Institute developed a hook height?