Figure 4.
The graph shows cumulative flow plotted against time in days, with inflow and outflow at 1.6 mega pascal and at target effective stress 4.1 mega pascal, along with inflow and outflow after D testing at 1.6 mega pascal. At 1.6 mega pascal, inflow decreases from 0 to about minus 30 millilitres while outflow increases from 0 to about 30 millilitres within about 0.2 days. After D testing, inflow slightly decreases to about minus 3 millilitres while outflow increases to about 2 millilitres over about 0.4 days. At 4.1 mega pascal, inflow decreases steadily from 0 to about minus 35 millilitres while outflow increases from 0 to about 35 millilitres over about 0.9 days.Data showing the volume loss and gain from the injection and backpressure pumps, respectively, during hydraulic testing of sample ES1. The black and grey lines show data during hydraulic testing under in situ conditions prior to gas diffusion. The yellow and orange show flow after the sample has been consolidated to an effective stress of 4.1 MPa. The green and blue lines show flow data after diffusion testing