CDXA井组预定向钻井技术  

The Pre-Orienting Drilling Technology for CDXA Cluster Wells

作　　者：李士清[1] 

机构地区：[1]胜利石油管理局海洋钻井公司,山东东营257055

出　　处：《石油钻探技术》2004年第4期35-36,共2页Petroleum Drilling Techniques

摘　　要：为防止井眼碰撞、窜槽现象的发生,CDXA井组采用了表层预定向钻井技术。为保证大井眼表层预定向的 成功,研制了φ440.0mm带有直条式偏置扶正块的1.50°和1.25°两种动力钻具,该动力钻具和常规φ244.5mm 4级动力 马达配合,成功完成了CDXA井组的表层预定向钻进。Surface pre-orienting drilling technology is employed for preventing wellbore from collision and channeling in CDXA Cluster Wells. In order to assure the surface wellbore is oriented successfully, two types of mud motors of 440. Omm OD with offset centralizers (their bent angles are 1. 50°and 1. 25°) is developed, and the surface pre-orienting job is achieved successfully by supporting these mud motors with a normal four level mud motor of 244. 5mm OD.

关 键 词：丛式井 定向钻井 随钻测井 测斜仪 窜槽 CDXA井组 

分 类 号：TE243[石油与天然气工程—油气井工程]