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水平井地质导向技术直接关系到水平井钻井成功与否的关键技术。它是在地质综合研究的基础上,对随钻测井曲线及可能钻遇的地层岩性、油气藏进行预测。结合地质和气测资料,以实钻地质特征来确定和控制井眼轨迹,保证水平井最佳着陆点和最大限度地控制井身轨迹穿行于横向上变化不一的油气藏中,为钻井提速、油田增储上产,提高采收率提供重要的技术手段,是实现LWD导向技术的最终目的。本文系统介绍了油气藏着陆和水平段地质导向过程中的地层对比法,井身轨迹跟踪图法,LWD导向法在新疆夏子街油田XHW5401水平井的应用,并对施工中出现的问题进行了系统的分析和总结。
Horizontal well geosteering technology is directly related to the success of horizontal well drilling key technologies. Based on the comprehensive geological study, it predicts the logging-while-drilling curves and the possible formation lithology and reservoir. Combined with the geological and gas data, drilling and drilling to determine and control the wellbore trajectory to ensure the best landing horizontal well and to maximize the control of wellbore trajectory in the laterally varying oil and gas reservoirs, drilling speed, It is an ultimate goal of LWD-oriented technology to provide an important technical means to increase oil production and increase oil recovery. This paper systematically introduces the stratigraphic correlation method, well trajectory tracing method and LWD method applied in XHW5401 horizontal well in the geosteering process of the landing and horizontal section of oil and gas reservoirs. The problems in the construction are systematically analyzed Analysis and conclusion.