石油定向井井眼轨迹不确定性分析

Uncertainty analysis of oil directional well hole track

随着我国能源需求量的不断提高,石油行业不断加大油气开发力度。定向井的应用可以摆脱地面条件对石油开发的限制,有利于提高油藏采收率与石油产量,因此,分支井、水平井与绕障井等定向井在油田中得到了推广应用。但油田开采过程中,对定向井井眼轨迹的控制精度提出了更高的要求,定向井井眼轨迹的控制难度也在不断增加。由于井眼轨迹不确定性的存在,使井眼相碰问题频频出现,极易引起安全事故,造成严重的损失。本文对石油定向井井眼轨迹的主要影响因素进行了分析。

With the increasing energy demand in China,the petroleum industry has been increasing its petroleum exploitation.The application of directional wells can get rid of the restriction of ground conditions on oil development,and it is beneficial to improve oil recovery and oil production.However,in the process of oil field exploitation,the control precision of directional borehole track is higher and the control difficulty of directional borehole track is increasing.Due to the uncertainty of borehole track,the problem of borehole collision frequently occurs,which is easy to cause safety accident and cause serious loss.In this paper,the main influencing factors of oil directional well track are analyzed.