石油钻采工艺2011，Vol.33Issue(1)：109-111,116,4.
大邑构造浅部井段钻具失效分析及预防
Analysis and precaution of drilling tools failure in shallow section of Dayi structure
摘要
Abstract
Sandstone and mudstone stagger in shallow formation of Dayi structure with gravel layers locally, so the drillability is poor. In recent years, 13 deep wells were deployed in the area, while a total of 42 time drilling failures happened in shallow section,causing significant economic loss. In order to avoid frequent drilling failure in Dayi shallow strata, the early failures were collected, and indoor micro and corrosion tests were conducted. The main reason of the failure is that soft and hard staggered formation easily leads to drilling tools fatigue, with no nondestructive testing in time, and drilling rotation speed is too high, causing the probability of occurrence of fatigue failure increases. The measures to prevent drilling failure are proposed, which are properly adjusting drilling parameters and timely nondestructive testing. Good results have been achieved at the scene through the use of these measures.关键词
大邑/钻具/失效/钻速/无损探伤分类
能源科技引用本文复制引用
房舟,朱化蜀,任茂,李丽,胡大梁..大邑构造浅部井段钻具失效分析及预防[J].石油钻采工艺,2011,33(1):109-111,116,4.基金项目
受国家重大专项课题"低渗气藏特殊复杂地层高效钻井关键技术"(编号:2008ZX05022-005)和中国石化股份有限公司西南油气分公司科技攻关项目"大邑须家河组气藏开发配套工艺技术研究"(编号:G1100-07-25-0174)的资助. （编号:2008ZX05022-005）
