At such depths, these liquids are under very high pressure. Pump petroleum out, and the pressure in the well drops. Water in the surrounding rock, which is also packed under high pressure, then pushes its way into this low-pressure pocket until the pressure reaches equilibrium. "It's just like digging a hole at the beach, where water in the sand around it flows into the lower pressure zone of the hole," explains Chris Liner, a professor of petroleum seismology at the University of Houston.作者: gydxmm 时间: 2014-12-10 21:25
