涪陵页岩气田瘦身井配套钻井关键技术实践与认识  

Practice and understanding of key technology of slimming well drilling in Fuling shale gas field

作　　者：王鸿远 明鑫 张玉强 魏振华 明柱平 WANG Hongyuan;MING Xin;ZHANG Yuqiang;WEI Zhenhua;MING Zhuping(Zhongyuan Petroleum Engineering Co.,Ltd.,SINOPEC,Puyang 457001,China;Southwest Drilling Branch,Zhongyuan Petroleum Engineering Co.,Ltd.,Chengdu 610052,China;Jianghan Oilfiled Company,SINOPEC,Qianjiang 433123,China)

机构地区：[1]中石化中原石油工程有限公司,河南濮阳457001 [2]中石化中原石油工程有限公司西南钻井分公司,四川成都610052 [3]中石化江汉油田分公司,湖北潜江433123

出　　处：《断块油气田》2024年第4期714-719,共6页Fault-Block Oil & Gas Field

摘　　要：为提高涪陵页岩气田开发效益,提升钻井效率,降低钻井成本,需采用井身结构瘦身优化设计技术。为满足压裂改造、采气要求,通过建模与数据统计分析等手段,文中提出了2种井身结构瘦身方案,并针对瘦身井钻井配套技术难点,开展了个性化钻头、钻具组合、钻井参数、定向仪器结构4项技术的优化与实践。现场应用表明,井身结构瘦身后,机械钻速显著提高,钻井周期进一步缩短,单井用电量降低37.5%,钻屑量降低19%~39%,每年可减少固体废物上万立方米,降低了油田安全环保压力。该技术可为国内其他页岩气田效益开发提供参考。In order to improve the development efficiency and drilling efficiency and to reduce drilling cost,the optimization design technology of casing program slimming is adopted in Fuling shale gas field.In order to meet the requirements of fracturing stimulation and gas production,two kinds of casing program slimming schemes are proposed by means of modeling and data statistical analysis,and in view of the technical difficulties of slimming well drilling,the optimization and practice of four technologies including personalized drill bit,drill assembly,drilling parameters and directional instrument structure are carried out.Field application shows that after the casing program slimming,the rate of penetration is significantly increased,the drilling cycle is further shortened,the electricity consumption of a single well is reduced by 37.5%,the amount of drilling cuttings is reduced by 19%-39%,and the solid waste can be reduced by tens of thousands of cubic meters per year,reducing the oil field safety and environmental protection pressure.This technology provides a reference for the beneficial development of other domestic shale gas fields.

关 键 词：页岩气田 水平井 井身结构瘦身 难点分析 关键技术 

分 类 号：TE246[石油与天然气工程—油气井工程]