在现有能源中,石油是世界上使用最广泛的一种,占一次能源结构的60%以上。因此,对石油开采技术的研究就显得尤其重要。 70年代,世界上一些技术先进的国家开始在石油钻井工程中采用定向井、丛式井、水平井代替传统的垂直井,这样不但节约了土地资源、降低了钻井成本,而且解决了开窗侧钻和海洋钻探等复杂工程问题,给石油工业带来了一次历史性的飞跃。石油钻井技术一个非常重要的环节就 Of the available energy, oil is the most widely used type in the world, accounting for more than 60% of the primary energy mix. Therefore, the study of oil extraction technology is particularly important. In the 1970s, some technologically advanced countries in the world began to use directional wells, cluster wells and horizontal wells instead of traditional vertical wells in oil drilling projects. This not only saved land resources, reduced drilling costs, but also solved the problems of fenestration Complex engineering problems such as drilling and marine drilling have brought a historic leap to the oil industry. Oil drilling technology is a very important part