彭州气田彭州115井钻井提速配套技术
投稿时间:2018-09-04  修订日期:2019-05-30  点此下载全文
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作者单位E-mail
江波 中国石化西南油气分公司石油工程技术研究院 4569668@qq.com 
任茂 中国石化西南油气分公司石油工程技术研究院  
王希勇 中国石化西南油气分公司石油工程技术研究院  
基金项目:中国石油化工股份有限公司重大专项“龙门山前雷口坡组气藏勘探开发关键技术研究”(编号:P1609)
中文摘要:为解决龙门山前彭州气田钻井中上部地层气体钻井提速技术受限、易井斜,中部须家河组与小塘子组地层研磨性强、可钻性差,下部雷口坡组地层较破碎、易阻卡、易漏,以及机械钻速低、钻井周期长等难题,通过分析龙门山前彭州气田地质资料和地层特点,在彭州115井中开展了优化井身结构、水力加压器、垂直钻井技术、PDC钻头优选技术、高效钻井液技术、扭力冲击器等钻井提速配套技术的研究与运用,实现了安全快速钻井,平均机械钻速2.62m/h,钻井周期265.75d,与区块前期钻井周期最短井羊深1井相比,钻井深度增加454m,平均机械钻速提高24.17%,钻井周期减少了17.42d,创川西地区钻探雷四段气藏为目的井中钻深最深和钻井周期最短纪录。研究结果表明,彭州115井钻井提速配套技术可为彭州气田后续井钻井提速增效提供借鉴。
中文关键词:雷口坡  彭州气田  提速  水力加压器  垂钻钻井  高效钻头  高效钻井液
 
Matching technology of improving drilling speed for Well Pengzhou115 in Pengzhou Gas Field
Abstract:There are some difficulties in drilling in Pengzhou Gas Field of Longmen Piedmont. In the upper strata, gas drilling technology is limited and prone to deviation. It has strong abrasiveess and poor drillability in the middle part of the Xujiahe Formation and the Xiao Tong Zi formation. In the lower lekou slope formation, the strata are relatively fragmental, easy to resist and easy to leak. Drilling speed is low and drilling cycle is long. Based on the analysis of geological data and formation characteristics in Pengzhou gas field, the research and application of matching technologies for drilling speed-up, such as optimizing well bore structure, hydraulic pressurizer, vertical drilling technology, PDC bit optimization technology, high-efficiency drilling fluid technology and torsion impactor, are carried out in well Pengzhou115.Safe and fast drilling is realized.The average drilling speed is 2.62m/h and the drilling cycle is 265.75d.Compared with the shortest cycle well Yangshen 1 in the block, drilling depth and the ROP is increased by 454m and 24.17% respectively. In the West Sichuan area, the record of the deepest drilling depth and the shortest drilling cycle is created in the drilled well for the fourth member of Leikoupo gas reservoir.Research results showed that the proposed high—speed drilling techniques for Well Pengzhou115 can provide references for follow-up operations to enhance the ROP and efficiencies in the Pengzhou Gas Field.
keywords:LeiKouPo  Pengzhou Gas Field  speed up  hydraulic pressurizer  vertical drilling  efficient drilling bit  high efficiency drilling fluid.
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