P02: Prototype Concept of Reservoir-Profile-Update-Rate to Quantitatively Evaluate Efficiency of Reservoir Description with Different Services While Drilling

Under the current digital oil field development environment, reservoir profile update rate (RPUR) is introduced as a key quantitative indicator to evaluate the efficiency of 2D reservoir description and 2D reservoir profile update degree with specific services while drilling. RPUR is defined as the average of the boundary update rate (BUR) and the layer’s property update rate (LPUR). It greatly depends on DOD and resolution of the selected service while drilling to update boundaries and layers in different reservoirs. Deeper DOD and higher resolution for more boundaries and interlayer area detected with higher certainty, higher profile update degree with higher probability, and vice versa. Multiple examples presented advantages of different services for effective reservior description in specific reservoirs, which can be quantitatively evaluated by RPUR factor. The current RPUR concept is only a prototype with simplified factor and standard considered. More details should be input to refine this concept for more applicable reservoirs and situations.