Research status and prospect of rotary percussion drilling technology
With the deep and ultra-deep development of resource exploration,as well as the higher de-mand for emergency drilling and rescue level guarantee capabilities,rotary percussion drilling technolo-gy has become a research hotspot in the field of efficient drilling.Compared with traditional rotary dril-ling technology,rotary drilling technology has advantages such as high drilling efficiency,low drilling pressure,and low stick-slip vibration intensity in hard rock formations.It is widely used in the explora-tion and exploitation of deep-sea resources,emergency drilling rescue and other fields.At present,un-der complex rock formations and variable working conditions,further improving the efficiency of rotary percussion drilling and reducing the costs have become the primary tasks faced in the process of deep and ultra-deep drilling.Firstly,the basic concept and advantages of rotary drilling technology are intro-duced.Secondly,the development and structural characteristics of hydraulic and pneumatic impactors are reviewed.Thirdly,the research progress and optimization strategies of efficient rock breaking me-chanisms are discussed.Fourthly,the research results on key influencing factors of drilling efficiency are elaborated.Finally,based on the research achievements and challenges faced by rotary percussion drilling technology,the future research directions are analyzed and prospected.
rotary percussion drillingpower modedrilling efficiencyrock breaking mechanismefficient rock breaking
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维普
