Daanzhai Limestone is referred to as a primary fractured reservoir controlled by lithology and lithofacies.
Transverse isotropic model for HTI media with a horizontal symmetry axis is the simplest one used to describe the transverse isotropy of the fractured reservoirs containing parallel vertical cracks.
Also it has been determined that fracture spacing, aquifer strength and skin factor have insignificant effect on water coning in fractured reservoirs.
The expansion and application of the method to fractured reservoirs are discussed in the paper.
The water coning caused by the imbalance between gravity and viscous forces is the most important reason for water production in different fractured reservoirs.
The Daanzai reservoir belongs to the type of porosity-fractured reservoir of ultra low porosity and permeability.
bounded naturally fractured reservoir