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Fracture network expansion intelligent prediction method considering inter-segment fracturing process difference
Free accessEuropean Patent Office | 2024| -
Tunnel construction drilling device and tunnel construction method thereof
Free accessEuropean Patent Office | 2024| -
Hard rock directional fracturing method under hydraulic fracturing-carbon dioxide phase change coupling
Free accessEuropean Patent Office | 2024| -
High-temperature hydraulic control sliding sleeve switch
Free accessEuropean Patent Office | 2024| -
Tunnel inverted arch side formwork device and tunnel inverted arch construction method
Free accessEuropean Patent Office | 2024| -
Slurry shield normal pressure cutter cylinder washing system
Free accessEuropean Patent Office | 2024| -
Multiphase fluid migration distribution monitoring device based on acoustoelectric combination
Free accessEuropean Patent Office | 2024| -
DOWNHOLE TRANSDUCER WITH A PIEZOELECTRIC CRYSTAL MATERIAL
Free accessEuropean Patent Office | 2024| -
Construction method for special-shaped large-section ultra-deep vertical shaft of water delivery tunnel
Free accessEuropean Patent Office | 2024| -
Method for efficiently removing near-well reversed-phase emulsification zone of offshore heavy oil thermal production well
Free accessEuropean Patent Office | 2024| -
Dynamic simulation monitoring method for variable system production of compact oil and gas reservoir fractured horizontal well
Free accessEuropean Patent Office | 2024| -
Urban concealed culvert trend continuous tracking method
Free accessEuropean Patent Office | 2024| -
Ground intelligent dynamic monitoring system for coal bed gas drainage and mining and analysis method
Free accessEuropean Patent Office | 2024| -
Efficient caving method for suspended top coal at end of fully mechanized caving face of extra-thick coal seam
Free accessEuropean Patent Office | 2024|