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USE OF CUTTING VELOCITIES FOR REAL TIME PORE PRESSURE AND FRACTURE GRADIENT PREDICTION
USE OF CUTTING VELOCITIES FOR REAL TIME PORE PRESSURE AND FRACTURE GRADIENT PREDICTION
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机译:使用切割速度进行实时孔隙压力和断裂梯度预测
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摘要
Disclosed is a new method for providing accurate real time predictions of pore pressure and fracture gradient, at the rig site by determining the wave velocity from drill cuttings by means of a portable continuous wave technology (CWT) tool that measures drill cuttings at high resonant frequency and then using the velocity obtained in combination with the novel method of the present invention to arrive at accurate predictions for pore pressure and fracture gradient. The new technique offers real time pore pressure prediction at the rig site with small error margin that is not otherwise available using seismic, VSP, or check shot velocities in exploration.
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