System for making a subsurface measurement with sensors distributed along a wired drill pipe according to an equation

摘要

A system provided for making a subsurface measurement includes a drill string 14 comprising a plurality of sections of wired drill pipe 20 having a communication channel, the drill string 14 extending into a subsurface formation. Sensors 401, 402, 403, 404, 405 are distributed along the drill string 14 at distances determined from an equation and the sensors 401, 402, 403, 404, 405 are in communication with the plurality of sections of wired drill pipe 20. The sensors 401, 402, 403, 404, 405 may measure a characteristic of a formation surrounding the drill string 14, and/or a characteristic of the drill string 14. The equation may be a linear, exponential or logarithmical equation.