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伴随着经济快速发展,能源的快速枯竭,提高不可再生资源的开采率和利用率已成为现阶段的重中之重。与石油、天然气等不可再生资源的开采直接相关的就是钻井技术的高低。对于我国胜利油田、大庆油田等经过最初的钻井技术进行开采,由于开采中一些不可避免的原因,导致石油开采完结,或者无法继续开采,这造成了资源的极大浪费。为了降低重新钻井的成本,使得原油的井网络结构完善,充分利用原油的地质、地矿、报废井眼,提高石油、天然气等的开采率,侧钻井工艺的应用,已经从最初的实验阶段,逐渐走向了现实的应用。侧钻井工艺使得油藏的开采年限得到了延长。如何改进在废弃井眼中下侧钻以及构建新的井身结构中存在的问题也越来越重要了。
With the rapid economic development, the rapid depletion of energy and the improvement of the exploitation rate and utilization rate of non-renewable resources have become the top priority at this stage. Directly related to the exploitation of non-renewable resources, such as oil and natural gas, is the drilling technology. For China’s Shengli Oilfield, Daqing Oilfield and other drilling technology through the first exploitation, due to some unavoidable reasons in the mining, leading to the end of oil production, or unable to continue mining, which caused a tremendous waste of resources. In order to reduce the cost of re-drilling, make the structure of the well network of crude oil perfect, make full use of crude oil geology, geology and mines, scrap wellbore, increase the exploitation rate of oil and natural gas, the application of side drilling technology has been from the initial experimental stage, Gradually toward the reality of the application. Side drilling technology has enabled the reservoir to extend the life of the mining. It is also of increasing importance how to improve the problems of under-lateral drilling in the abandoned wellbore and construction of new wellbores.