【摘要】 随着油气资源勘探开发不断向海洋和西部地区深入,钻井作业所面临的地质条件和自然环境更加复杂和恶劣,在技术、成本及环保等方面存在的问题更加突出。为此,小井眼井连续油管钻井作为一项优越性明显的钻井新技术,受到了国内外各油田和研究机构的重视和青睐。该技术具有降低成本、操作安全、利于环保、能应用于特殊环境和特殊的勘探开发中、易实现自动化和智能化等优点,体现了国际石油钻井技术发展的总趋势,必将成为21世纪主要钻井技术之一。更多还原

【Abstract】 As the exploratory development of oil and gas resources is being deepened continuously to the ocean and western area, the geological condition and natural environment that the drilling operation faces with are more complicated and more extreme, and the existent problems in the aspects such as technology, cost and environment protection is more obvious. For this reason, the slim- hole coiled tubing drilling technology, as a new drilling technology with obvious superiorities, is paid more attention by the oilfields and research institution both in China and abroad. Because this technology can be applied into special environment and special exploration and development, and be easier to realize automatization and intelligent drilling with greatly reduced occurrence of drilling accidents, environmental pollution and cost, it is the general development trend of the international petroleum drilling technologies and must become one of the major drilling technologies in the 21st century.更多还原