... value are non-linear at different stages. The impact frequency and impact power of the tool decrease with the increase of the nozzle diameter, increasing first and then decreasing with the increase of the gap between the pendulum and the outer casing, increasing with the increase of the drain hole area...

... pulses of water to shatter the rock on a large scale. machine learning Reservoir Characterization reservoir geomechanics Artificial Intelligence Wellbore Design Upstream Oil & Gas regression specific energy Rock mechanics nozzle diameter correlation rock property breakage...

.... The results indicate that optimum drilling, in terms of volume of rock broken per unit of energy input to the jet, is achieved with single pulses spaced at indexing distances of four nozzle diameters. The average nozzle pressure required to initiate rock fracture is approximately nine times the rock tensile...

... ): the velocity at which the nozzle travels across the rock being cut. Reservoir Characterization metals & mining hydraulic fracturing Upstream Oil & Gas specific energy traverse velocity nozzle traverse velocity Rock mechanics nozzle diameter computer program McClain sandstone diameter...

... pressure (to cut coal) lies in the range of 100 to 500 atmospheres. These pressures were utilized for the research. The diameter of the nozzle was changed as .follows; 0.97; 1.24; 1.5; 2.17; 2.87; and 3.57 mm. Graphs showing dynamic pressures for each nozzle diameter and varied axial dynamic pressure were...

... equation, all for application to gaseous products of the detonation of high (chemical) explosives. Reservoir Characterization Completion Installation and Operations drilling operation Upstream Oil & Gas Hypervelocity Impact specific energy strength nozzle diameter breakage crater...