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介绍了小井眼技术的发展概况，从小井眼钻头、减震技术、小环空技术、评价方法和井下工具等方面论证了小井眼技术的可靠性和可行性。小井眼技术在新区勘探、老油田开发等领域的推广应用可以降低钻井成本，提高油田勘探开发的总体经济效益。近年来，随着小井眼配套工具及相关工艺技术的不断发展完善，此项技术将会得到进一步推广和应用。
The development of slimhole technology is introduced. The reliability and feasibility of slimhole technology are demonstrated from the aspects of slimhole bit, vibration reduction technology, small ring and space technology, evaluation method and downhole tools. Slim hole technology in the new exploration, development and other fields of old oil fields to promote the use of drilling costs can be reduced and improve the overall economic efficiency of oil exploration and development. In recent years, with the continuous development and improvement of supporting tools and related process technology of slim hole, this technology will be further popularized and applied.