Overview

• Based on numerical solution of Maxwell equations.
• Greatly improves on current state of EM MWD theory.
• Computes signal attenuation based on media properties, signal frequency, etc.
• Allows selection of optimal signal strength and frequency.
• Determines electromagnetic field distribution and currents in surrounding media and along drill string.
• Calculates impedance of the entire system.
• Determines the optimal EM transmitter gap size.
• Allows determination of the most optimal drilling fluid.
• Determines optimal parameters of the receiver (including differential receivers).
• Accounts for effect of different casing and drillstring configurations.
• Accounts for finite resistance and permeability of metal and drillstring joints.