元坝区块提高钻井速度技术方案探析
投稿时间:2010-03-05  修订日期:2010-03-05  点此下载全文
引用本文:周延军,陈明,于承朋.元坝区块提高钻井速度技术方案探析[J].钻探工程,2010,37(5):1-4.
ZHOU Yan-jun,CHEN Ming,YU Cheng-peng. Discussion on Drilling Technology for Increasing ROP in Yuanba Block[J]. Drilling Engineering, 2010,37(5):1-4.
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作者单位E-mail
周延军 中国石油大学石油工程学院  
陈明* 胜利油田钻井工艺研究院 zjychenming@163.com 
于承朋 胜利石油管理局钻井工艺研究院  
基金项目:“十一五”国家科技支撑计划(项目编号:2008ZX05017-002)
中文摘要:在总结分析前期钻井经验的基础上,从地质因素、钻井复杂情况、岩石可钻性、地层温度、钻井液密度、井身结构等方面分析了目前影响元坝区块深井钻井速度提高的因素。指出井身结构层次有限,不能完全有效封隔不同压力体系的地层以及须家河组地层可钻性差、埋深较深、段长,不能利用空气钻进行钻进是影响机械钻速的2个最重要原因。提出了气体钻井方案、钻头选型方案、进口动力钻具配合高效钻头钻须家河地层方案,以及采用特种井眼尺寸井身结构方案,为元坝区块深井钻井提供技术支持。
中文关键词:深井钻井  井身结构  机械钻速  元坝区块
 
Discussion on Drilling Technology for Increasing ROP in Yuanba Block
Abstract:Based on the summery of previous drilling experience, analysis was made on the factors which influence ROP in deep well drilling in Yuanba Block from the aspects of geologic factors, complex drilling conditions, rock drillability, formation temperature, mud density and casing program. There are 2 main affecting factors: one is the limit of wellbore configuration stratification, which can not effectively seal the formations with different pressure system; another is that the gas drilling can not be used because of bad formation drillability with a deep and long drilling section. Gas drilling, bit selection and dynamic drilling tool coordinating with high efficiency bit scheme are presented for Xujiahe formation drilling and casing program with particular well size are introduced to give technical support for deep well drilling in Yuanba Block.
keywords:deep well drilling  casing program  penetration rate  Yuanba block
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