... interbedded with variable proportions of silt and clay. Gas is the target hydrocarbon type, but light oil / condensate can be present unexpectedly. In these depleted reservoirs, hydrocarbons typing are complicated by their reduced volumes and corresponding diminished effect on conventional logs. Wells...

... Abstract Porosity, permeability and water saturation cannot be effectively estimated from conventional logs by using the classical methods in tight sandstone reservoirs due to the complicated mineral components, pore structure and strong heterogeneity that caused by the diagenesis in the Chang...

... response of reservoir formation tester measurements for formation pressure and reservoir fluid mobility. machine learning Artificial Intelligence orientation induction resistivity log analysis Upstream Oil & Gas log resistivity curve induction resistivity conventional log well logging...

... Difficulty in reservoir evaluation arises when coal is present within the sandstones. None of the conventional logs clearly identify coal lithology. Moreover, combination of log responses actually can mislead the coaly interval to be interpreted as hydrocarbon bearing. As shown in the Fig. 3...

... conventionally acquired logs, although it should be recognised that the uncertainty in this approach is significant. Application of this technique to other fields with limited image data may prove helpful in reservoir modelling and understanding of production behaviour. conventional log reservoir log...