Rock Typing andPrediction of Permeability-Porosity Relationship for one of IranianCarbonate Gas Reservoirs

[M.Sharifinik] - Islamic Azad University, Tehran, Iran Reservoir characterization methods are very important as they provide a better description of the storage and flow capacities of a hydrocarbon reservoir; moreover, it plays crucial role in reservoir simulation models.Reservoir rock typing is one of the most essential parts of proper reservoir characterization. This is a broad classification including quantitative measures such as porosity, permeability, pore and throat sizedistributions, pore connectivity and qualitative descriptions of rock fabric and texture. Rock typing is based on conventional core analysis data, special core analysis (SCAL), wireline logs, description of cuttings and depositional environment, and thin-section analysis. Rock typing and hydraulic flow unit identification are elaborated to integrate both geological and petroleum engineering data. Among the various quantitative rock-typing techniques presented in the literature, the flow zone index approachand Winland R35 method aremore widely used.‘K’ and ‘D’ are main carbonate formations for one of the giant gas reservoirs in Iran. In this study, core data from one well are assembled to develop more accurate generalized permeability-porosity relationship for characterize ‘K’ and ‘D’ formations by (HFU) concept for a gas condensate field reservoir in Persian Gulf in Iran.

Rock Typing andPrediction of Permeability-Porosity Relationship for one of IranianCarbonate Gas Reservoirs Keywords:

Reservoir Characterization , Rock Typing , Hydraulic Flow Unit , Winland R35 , Permeability