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improved method for drilling of the initial phase of oil wells in deep water with head underwater well
improved method for drilling of the initial phase of oil wells in deep water with head underwater well
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机译:井下水下井钻探深水油井初始阶段的改进方法
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摘要
Improved method for the drilling of the initial phase of deep water oil wells with an underwater well head consisting in the positioning and cementation of the conductor pipe and anchorage casing by means of a single drilling phase. A tapered hole (with a double diameter) is drilled using a drill string consisting of a motor driven pilot bit and a reaming bit.
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