伊朗雅达油田首口水平井S15钻井技术

S15井位于伊朗阿瓦兹市东南部，是中国石化在伊朗雅达项目的第一口水平井,属于侧钻水平井。由于裸眼段比较长、侧钻点深、水平段长、水平位移大等，该井施工困难大。为保证施工的顺利进行，针对钻遇地层的特点，通过制定有效的轨迹控制方案，选取合适的螺杆及钻具组合，采取合理的钻井参数及技术措施，同时优化钻具结构，顺利的完成钻井任务。总结出适合伊朗雅达地区水平井的配套钻井技术，为以后水平井的施工提供借鉴。

Drilling Technology for the First Horizontal Well S15 in Yada Oilfield of Iran

S15 well is located in the southeast of Ahawaz in Iran, which was a sidetracking horizontal well and the first horizontal well by Sinopec in Yada project in Iran. Because of the long open hole section, deep sidetrack points, long horizontal section and large horizontal displacement, the construction was very difficult. In order to ensure the smooth progress of the construction, aimed at the characteristics of drilled formation, through making up the effective trajectory control scheme, selecting the appropriate screw and BHA, taking reasonable drilling parameters and technical measures and meanwhile optimizing the drilling tool structure, the drilling tasks were successfully completed. The matching horizontal well drilling technologies suitable to Yada of Iran were summed up as the reference for the late horizontal wells drilling construction.