在钻井过程中对地层造斜力的研究  

Theoretical Analyses of Formation Force on Earth Layers during Drilling Process

作　　者：余雄鹰 

机构地区：[1]中国海洋石油东海公司,200030

出　　处：《中国海洋平台》1995年第5期26-28,5,共4页China offshore Platform

摘　　要：本文叙述了在钻井过程中钻头切削异性和地层的各向异性对造斜力的影响,推导出了一个计算地层造斜力的新公式,由此较好地解释了在现场总结出的造斜规律,并进一步推出了确定临界地层倾角的准则方程。有利实际井眼轨迹的预测和控制。A new calculation formula of formation force acting on earth layers is derived by considering the effects of bit and the anisotropy of earth layers. This formula can be used to explain the field inclination problems. Furthermore, the criterion equation is established to calculate the critical formation dip β. These analytical results are useful to predict and control the trajectory of bit during drilling process.

关 键 词：地层 造斜力 研究 

分 类 号：P634[天文地球—地质矿产勘探]