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复杂地层深孔钻探孔内事故处理与预防研究分析

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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.
Research and Analysis on accident treatment and Prevention of Deep-hole drilling in complex formation
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.

Complex formationdeep drillingin-hole accidenttreatment and prevention

刘虹志

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四川省能源地质调查研究所,四川 成都 610000

复杂地层 深部钻探 孔内事故 处理预防

2024

世界有色金属
有色金属技术经济研究院

世界有色金属

影响因子:0.138
ISSN:1002-5065
年,卷(期):2024.(2)
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