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桩837区块位于五号桩油田济阳坳陷沾化凹陷孤北洼陷中央隆起带北部桩837块构造腰部位。长期以来在该区块的施工井中普遍反映出这一区域井下情况相对复杂,泥浆性能难以控制以及钻井液成本严重超支的施工难题。针对这一难题,在对837-5井的施工中,我们在聚磺防塌润滑钻井液体系的基础上,合理调整钻井液的流变参数,配合合理工程措施,实现了高速安全低成本钻井,机械钻速、建井周期均在该区域创造纪录,同时收到了良好的经济效益。
Pile 837 is located at the structural waist of 837 piles in the northern part of the central uplift of the Gubei Sag in the Zhanhua Depression, Wuyangzhu Oilfield. For a long time, the construction wells in this block have generally reflected the difficult construction problems in this area, such as the complicated underground conditions, the muddy performance and the serious overspending of drilling fluid. In response to this challenge, in the construction of Well 837-5, based on the polysulfide anti-collapse lubrication drilling fluid system, the rheological parameters of drilling fluid are reasonably adjusted and reasonable engineering measures are taken to realize high-speed safe and low-cost drilling , ROP, well construction cycle in the region to create a record, at the same time received a good economic benefits.