Evaluation of laminated shaly sand sequences in Ahwaz oil field using (via) Thomas Stieber method and conventional petrophysical logs

摘要

Thin layers of sand between shale formations can produce hydrocarbons if the layers are studied well. These layers are often ignored because of low thickness of layers and low resolution of conventional petrophysical logging tools in conventional methods. These tools only calculate the average properties of these layers, which makes a wrong prediction of amount of oil and gas in layers. If the thin laminated shaly sand is identified accurately and the petrophysical parameters are calculated carefully, there will be some methods to analyze the layers better which results in enhancing the production of reservoir.