Fracture plays less important role in sandstone and
shale. But in deep formation , there is small porosity as the
result of compaction. If the fractures exist ,the permeability
of sandstone formation will be improved , then production
zone is formed1The research shows that the fracture can be
distinguished by using conventional logging data , for
example , porosity difference , big sonic interval-time , low
resistivity ,VDL anomaly etc. The conventional logging have
prevalent ,economical and practical advantages ,so the method
of distinguishing fracture by using conventional logging data
is a valuable technique.
论文详情