中国南海流花油田套管开窗侧钻大位移井钻井技术  

ERD TECHNOLOGY BY CASING SIDETRACK IN LIU HUA OILFIELD OF SOUTH CHINA SEA

作　　者：王俊良 杨继明 张新平 陈斌 

机构地区：[1]斯伦贝谢中国海洋服务公司 [2]中国海洋油田深圳分公司

出　　处：《钻采工艺》2010年第3期7-11,140,共5页Drilling & Production Technology

摘　　要：流花油田是南海东部海域地质储量最大的油田之一,用套管开窗侧钻大位移井在南区进行先导性试验钻探,钻成了中国海上Φ215.9mm水平段最长的一口大位移井,获得了重大地质勘探成果。文中介绍了流花11-1-D4PH大位移井的设计井身结构和剖面,主要技术难点,关键技术及取得的主要技术成果。其主要技术难点是在Φ215.9mm井眼增斜、稳斜、绕障防碰、横穿产层;穿越不同的地层压力梯度,产层井漏可能引起井下事故,长段泥岩强烈的造浆性使泥浆性能难以维护等;简略地介绍了旋转导向技术(Xceed675)的使用情况和效果,钻柱设计及摩阻扭矩分析技术,大位移井参数优化及安全钻进技术,钻井液技术等关键技术和核心技术措施,同时介绍了一些大位移井钻井理念。简略叙述了施工简况、时效构成和中靶情况。文中总结了多项技术成果,得出了一些认识,提出了有益的建议和结论。The oil reserves of Liuhua oilfield is one of the biggest reserves in the eastern area in South China Sea,drilling operation has been performed by extended reach drilling with casing sidetrack,and important geological achievements have been achieved by the ERD hole.The paper showed the ERD geometry,proposal profile,main challenging points,main key technology and main professional achievements.The main challenging points are building,holding,Anti-collision,drilling into pay zone in same 215.9mm hole,which has different pressure gradient,and might cause lost circulation and result in pipe stuck,and hard to maintain mud performance due to long open hole in shale and clay stone.It also introduced the RSS Xceed675 application and its results,technology on BHA design and torque and drag analysis,ERD drilling parameter optimization and safe drilling operation procedures,drilling fluid technology.Briefly talked about the operation summary,time breakdown and hitting targets.The paper summarized some technical achievements,and some lesson learnt has been got,and finally useful suggestion and conclusion have been put forward accordingly.

关 键 词：流花油田 大位移井 侧钻 钻井技术 钻探 开发 套管开窗 旋转导向系统 轨迹控制 

分 类 号：TE243[石油与天然气工程—油气井工程]