Deep fluids in a petroliferous basin generally come from the deep crust or mantle beneath the basin basement, and they transport deep substances(gases and aqueo
The distribution characteristics of the oil-water contact are the basis for the reservoir exploration and development and reserves evaluation. The reservoir wit
Statistics have shown that the world’s proven recoverable coal reserves are 984.211 billion tons,including 246.643 billion tons in the USA,157.01 billion tons
Objective Plant phototropism means that trees on the side directly exposed to sunlight generally grow faster than those on the opposite,and positive phototropis