Our test begun on March 26 at 4:oo pm. For the next six days and nights we controlled pressure in a hole B. Water was injected by a new system. Idea of this system appeared few weeks before the test and it is based on pumping system with two gas buffers (pic.1). Those buffers are installed for minimize unstability during adjusting pressure in borehole B (pic.2). The gas used in the buffers was Nitrogen.
Flaw rate we estimate by weight changes by a load-cell installed with the water tank.
Fluid Injection Test 2007