One of the important topics of the study on carbonate reservoirs is how dolomitization influences reser-voir properties.The most important and most common understanding is that perhaps under deep burial

the poro-sity and permeability of dolomite are higher than that of limestone.Yet there are few quantitative evidences for this difference.Though most case studies show the porosity of dolomite is higher

there are some exceptions. Based on the interrelations between porosity and permeability of five core examples from carbonate platforms with different depositional settings

different geologic ages and different burial depths

this paper explores the similari-ties and differences between dolomite and limestone reservoirs.For cores sampled from shallow-buried platforms

the average porosity of dolomite is similar to that of limestone but permeability of dolomite is higher than that of limestone.While for cores sampled from deep burial platforms

the average porosity of limestone is much lower than that of the adjacent dolomite

but their interrelations of porosity-permeability are almost the same.