井底动力钻具钻水平井下部钻柱受力的状态矩阵法

摘要

文中针对井底动力钻具钻水平井下部钻柱受力的复杂力学问题，提出了一种新的求解方法--状态矩阵法。并用实例表明结果与其它方法一致，符合实际。%When the coure of drilling a borizontal well with the downhole motor,under the axial force and deadweight, the lateral tmiform distributed load and the original bending were simultaneously act upon the bottom - hole assembly. The state matrix method is proposed to solve the complex problem of mechanics in this paper. Its result is agreed with other methods and corresponded to practise.