自1978年发表了有关钻井技术发展概况的论文以来,在近四、五年间的专业杂志上共发表了400多篇有关钻井技术发展情况的文章,这些文章有助于了解当前钻井技术发展的水平。1978年所预测的发展趋势有一部 More than 400 articles on the development of drilling technology have been published in professional journals in the last four or five years since the paper on the development of drilling technology was published in 1978. These articles help to understand the current level of drilling technology development . There is one forecast trend in 1978