H4三维绕障阶梯式水平井钻井技术

摘要

Design and operation of H4 well, a three-dimensional bypass staggered horizontal well which locates in Xinjiang Baolang Oilfield, are introduced in this paper. Well path control technology and drilling fluid system used in one building-up and two horizontal sections are mainly analyzed. The corresponding measures according to existing difficulties, such as excessive drag & torque in horizontal section, are taken, which is helpful to drill similar wells.%介绍了新疆宝浪油田H4三维绕障阶梯式水平井的设计和施工情况，重点分析了该井侧钻后的增斜段、两水平段井眼轨迹控制的工艺技术和钻井液体系，并针对该井水平段钻井过程中钻具摩阻和扭矩过大、钻压传递困难等难点，提出了相应的技术措施，为以后钻该类井提供了有益的借鉴。