前言寻找新的油田以满足对能源日益增长的需要,促使勘探工作转向世界各大陆架和三角洲地区。寻找和开采这些新资源的成本达到了巨大的数值。最近北海的勘探工作证实了这一点。极大地影响海洋深钻成本高的一个问题是钻穿所谓“松软而粘性大的强粘 Foreword Finding new oil fields to meet the growing need for energy is driving exploration efforts to all continental shelf and delta regions of the world. The cost of finding and exploiting these new resources has reached a huge value. Recent exploration work in the North Sea confirms this. One problem that greatly affects the high cost of deep ocean drilling is drilling through so-called ”soft and viscous