张海502FH大位移分支水平井钻井技术  

Drilling Techniques in Extended Reach Multilateral Well Zhanghai502FH

作　　者：王俊明[1,2] 周明信[1,2] 沙东[1,2] 王雪滔[1,2] 蔡万伟 

机构地区：[1]大港油田分公司滩海勘探开发公司,天津大港300280 [2]威德福亚太有限公司,天津塘沽300452

出　　处：《石油钻探技术》2007年第5期114-117,共4页Petroleum Drilling Techniques

摘　　要：张海502FH井为一口大位移分支水平井,该井井底水平位移、水平段长度均创造了目前国内陆地钻井的最大纪录。该井钻井过程中存在φ244.5 mm技术套管内开窗难度大、摩阻扭矩预测及井眼清洁困难、钻井参数及欠尺寸稳定器的优选困难、完井作业难度大等技术难题,从套管开窗、井眼轨迹控制、钻井过程中摩阻扭矩预测、倒划眼起钻井眼清洁、钻井液及完井技术等方面,详细讨论了主要技术、先进工具的应用和应用效果。该井的成功为今后钻类似井积累了经验。Well Zhanghai502FH, an extended reach horizontal well, sets the new record in horizontal displacement and length of horizontal section in China. A series of technical challenges arose from drilling this well, including sidetracking in the φ244.5 mm intermediate casing string, wellbore cleaning and drag and torque prediction, drilling parameters and under-gauge stabilizer optimization, well completion, etc. The main technique, applications and results of advanced tools are introduced in detail, including casing sidetracking, wellbore trajectory control, drag and torque predictions, reaming, wellbore cleaning, drilling fluids, and well completion, etc. The successful applications accumulate valuable experiences for simi- lar drilling operations in the future.

关 键 词：套管开窗 水平井 井眼轨迹 钻井液 张海502FH井 

分 类 号：TE243[石油与天然气工程—油气井工程]