PRODUCTION ENHANCEMENT SYSTEM USING ROBOT DRILL FOR DRILLING MULTI-BRANCHED FISHBONE AND RADIAL MICROHOLES IN SHALE GAS RESERVOIR, AND METHOD THEREFOR - 佰腾网专利查询 - 全球专利搜索领导品牌
TEST DEVICE FOR SIMULATING LONGITUDINAL-LATERAL-TORSIONAL COUPLED NONLINEAR VIBRATION OF DRILL STRING OF DEEPWATER RISERLESS DRILLING AND METHOD THEREFOR - 佰腾网专利查询 - 全球专利搜索领导品牌