Study and Verification of a Physical Simulation System for Formation Pressure Testing while Drilling

Figure 14

Testing results of pressure response for both the present and the previous systems under different permeabilities. (a) Pressure response versus time (number 1,  mD,  ml/s,  s). (b) Pressure response versus time (number 2,  mD,  ml/s,  s).

(a)

(b)