复杂地层深孔钻探孔内事故处理与预防研究分析
Research and Analysis on accident treatment and Prevention of Deep-hole drilling in complex formation
刘虹志1
作者信息
- 1. 四川省能源地质调查研究所,四川 成都 610000
- 折叠
摘要
随着对矿产资源需求的增加,矿产资源勘探逐渐向更深更复杂的地层发展.复杂地层深部钻探存在许多难点,孔内事故预处理是其中的重要关键技术之一,为降低深孔钻探孔内事故发生率,在施工过程中做好事故预防,本文分析常见深孔孔内事故特点,针对坍塌卡钻、压差/粘吸卡钻和缩径卡钻三种情况进行了形成原因、卡点原因及事故处理应对措施,重点分析了井漏和坍塌两重孔内事故,以及孔内事故的预防措施.
Abstract
With the increasing demand for mineral resources,mineral resources exploration is gradually developing to deeper and more complex strata.There are many difficulties in deep drilling in complex strata,and in-hole accident and treatment is one of the important key technologies.In order to reduce the incidence of accidents in deep-hole drilling and prevent accidents in the process of construction,this paper analyzes the characteristics of common deep-hole accidents,and carries out the causes of formation,sticking and accident treatment measures for the three cases of collapse sticking,pressure difference/suction sticking and diameter-shrinking sticking.This paper focuses on the analysis of the accidents in the double holes of well leakage and collapse,as well as the preventive measures.
关键词
复杂地层/深部钻探/孔内事故/处理预防Key words
Complex formation/deep drilling/in-hole accident/treatment and prevention引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据