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