孤东7－平1井钻井实践及认识

Drilling Practices on Well No. 7-Ping 1 in Gudong Oilfield

孤东７－平１井是国内第一口海油陆采水平并，其稳定产量是普通直井的６倍。在胜利油田设计与施工的水平井中，该并并身结构和地层压力比较复杂，创造了三维绕度最大和水平段精度最高的记录。本文重点介绍了该井的设计依据与施工过程，同时总结分析了该井井眼轨迹控制技术和主要钻探成果。

Well No. 7-Ping 1 in Gudong Oilfield is the first offshore well produced onshore, the oil production of which is 6 times more than conventional vertical wells. Designed and drilled by Shengli Oilfield, the well is characterized by the complicated casing program and formation pressure, the greatest three-dimensional bending deflection and the most accurate horizontal displacement. The paper presents the well design criterion and drilling procedures, and summerizes the well path control technique and the major drilling accomplishments.