In the process of horizontal well drilling and logging, real-time continuous monitoring returned cuttings is needed to monitor cleanliness hole reduce complex accidents, such as bit mud bag, wall collapse, stuck drilling, leakage, which may affect construction logging operations. However, when metering device fails or acquisition data packet lost, can be incomplete discontinuous, poses a challe...

Abstract To solve the problem of hole cleaning quantitative evaluation in highly deviated / horizontal well sections, experiments are made on experimental system influence laws annulus return speed, pipe drill tool eccentricity, deviation angle, drilling fluid density and viscosity, cuttings size other parameters bed thickness studied, calculation models steady-state dimensionless established, ...