博孜2402井钻井提速关键技术  

Key Technologies for Faster Drilling in Bozi 2402 Well

作　　者：王言泉 郑智冬 刘立超 吴彪 李长东 窦华进 WANG Yan-quan;ZHENG Zhi-dong;LIU Li-chao;WU Biao;LI Chang-dong;DOU Hua-jin(The No.3 Drilling Company,CNPC Bohai Drilling EngineeringCo.,Ltd.,Tianjin 300280,China)

机构地区：[1]中国石油集团渤海钻探工程有限公司第三钻井工程分公司,天津300280

出　　处：《西部探矿工程》2024年第4期25-29,33,共6页West-China Exploration Engineering

摘　　要：目前塔里木博孜1区块部署的井多为五开井身结构,平均井深7000m以上。地质构造复杂,施工难度大,事故复杂频发,周期普遍在400d以上。该区块吉迪克组、库姆格列木群盐层段以及目的层事故频发成为区块钻井难题,尤其是上部巨厚砾石层严重制约区域资源高效勘探开发,实钻表现为机械钻速慢、单只钻头行程进尺低、因憋跳钻引发井下钻具事故频发。博孜2402井从井身质量优化、钻头选型技术、钻具组合优化技术、钻井液体系优选、盐层卡层技术等方面着手,形成了博孜2402井钻井提速关键技术,该井最终以钻井周期253.88d,钻完井周期303.88d,创博孜1区块钻完井周期记录,博孜2402井关键钻井技术,可为博孜1区块钻井提供技术支持,建议进行推广。At present,most of the wells deployed in Block 1 of Tarim Bozi are of a five well casing structure,with an average well depth of over 7000m.The geological structure is complex,the construction difficulty is high,and accidents occur frequently,resulting in a construction period generally exceeding 400 days.The frequent occurrence of accidents in the Jidike Formation,Kumugeliemu Group salt layer,and target layer in this block has become a difficult drilling problem,especially in the upper thick gravel layer,which seriously restricts the efficient exploration and development of regional resources.The actual drilling performance is slow mechanical drilling speed,low single drill bit travel footage,and frequent downhole drilling tool accidents caused by poor jumping drilling.Starting from the optimization of wellbore quality,drill bit selection technology,drilling tool combination optimization technology,drilling fluid system optimization,salt layer jamming technology,etc.,key technologies for improving drilling speed of Bozi 2402 well have been formed.The final drilling cycle of this well is 253.88 days,with a completion cycle of 303.88 days,setting a record for the completion cycle of Bozi 1 Block.The key drilling technology of Bozi 2402 well can provide technical support for drilling in Bozi 1 Block,and it is recommended to promote it.

关 键 词：博孜1区块 海博瑞钻头 钻头选型 钻具组合 钻井提速 

分 类 号：TE243[石油与天然气工程—油气井工程]