中国石油大学学报（自然科学版）2012，Vol.36Issue(2)：110-114,119,6.DOI:10.3969/j.issn.1673-5005.2012.02.018
基于机械比能理论的钻井效率随钻评价及优化新方法
New method of evaluation and optimization of drilling efficiency while drilling based on mechanical specific energy theory
摘要
Abstract
Based on the original rock breaking machine specific energy theory, by analyzing the positive role of hydraulic energy on the rock breaking and bottom-hole clean, a rock breaking specific energy model was established under the conditions of the hydraulic parameters, and the relevant theory was perfected. Based on the relations between rock breaking specific energy model and drilling parameters and rate of penetration( ROP) , appropriate optimizing measures were proposed by analyzing bottom-hole conditions of drilling and determining the reasonability of drilling parameters. Meanwhile, ROP can be predicted by further deducing the model. The results show that the established evaluation system of mechanical specific energy efficiency can accurately predict ROP before drilling, diagnose bottom-hole conditions and optimize parameter during drilling, and select bit after drilling. The theory assessment with highly diagnostic accuracy, effective optimizing and simple operation was demonstrated by field examples of rock breaking specific energy. Therefore, it is worthy to be applied and promoted.关键词
钻井/机械比能/钻井效率/钻井参数/优化方法/井底围压/机械钻速Key words
drilling/ mechanical specific energy/ drilling efficiency/ drilling parameter/ optimization method/ bottom-hole confining pressure/ rate of penetration分类
能源科技引用本文复制引用
孟英峰,杨谋,李皋,李永杰,唐思洪,张军,林四元..基于机械比能理论的钻井效率随钻评价及优化新方法[J].中国石油大学学报（自然科学版）,2012,36(2):110-114,119,6.基金项目
国家“973”高技术研究发展计划项目(2010CB226704) （2010CB226704）
国家重大专项课题(2011ZX05022-005) （2011ZX05022-005）
