Study on the design of gas extraction drilling angle of crossing coal layer drilling in the floor rock roadway considering the boreholes superposition effect
Siqi Zhang, Zhaofeng Wang, Yimeng Zhao, Demin Chen, Yang Qiu, Jinjun Wei
Topics & Concepts
BoreholeDrillingCoalGeologyPetroleum engineeringSuperposition principleExtraction (chemistry)Coal miningMining engineeringGeotechnical engineeringEngineeringMechanical engineeringChemistryWaste managementChromatographyQuantum mechanicsPhysicsGeoscience and Mining TechnologyCoal Properties and UtilizationGeomechanics and Mining Engineering