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本文针对塔东北地区打探井“深、探、新”等特点,通过掌握设计井和已钻井的地质资料及地层孔隙压力和地层破裂压力变化规律,提出了在详细掌握各种地层因素的前提下,考虑施工井队的技术素质和装备条件,自下而上根据力学平衡的观点来确定井身结构的一整套技术方法。在此基础上,提出了塔东北地区合理的井身结构方案。
Based on the exploration of deep, exploration and new features of wells in northeast of Tarim Basin, this paper, by grasping the geological data of design wells and drilled wells, the pore pressure of formation and the variation of formation fracture pressure, puts forward that under the premise of grasping various stratigraphic factors in detail, Considering the technical quality and equipment conditions of the construction team, a set of technical methods for determining the well structure based on the viewpoint of mechanical balance is built from the bottom up. On this basis, put forward a reasonable scheme of well bore structure in northeast of tower.