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我队55年就开始使用球塞式双层双动岩心管(合金)鑽进。在整个的使用过程中,对鑽具結构、操作方法、技术規范都是边試驗、边建立、边推广、边巩固的。特别是58年經过技术革新以后,更进一步的确定了双管鑽进的操作方法和技术規范,縮短了双管鑽头距离,改进了鑽头,从而使这項技术措施成为我队鑽探生产上的一項可靠的鑽探手段。經驗証明,双管鑽进可使用在Ⅲ—Ⅳ級的岩层中,能够保証岩矿心的採取,在破碎掉块地层能減少岩心堵塞,回次进尺一
My team began using 55-year double-acting ball-type double-acting core pipe (alloy) drilling. Throughout the use of the drilling rig structure, methods of operation, technical specifications are the side of the test, while establishing, while promoting, while consolidating. In particular, after 58 years of technological innovation, we further determined the operation method and technical specification of double pipe drilling, shortened the distance between double pipe bits and improved the drill bit, making this technical measure the drilling production of our team A reliable means of drilling. Experience has shown that dual-pipe drilling can be used in the Ⅲ-Ⅳ level of rock, rock core can guarantee the take, broken blocks in the formation can reduce core blockage,