Abstract

A massive re-development program has been undertaken in Mumbai High, a multilayered complex carbonate reservoir, to increase oil production from the field. Drilling of horizontal and ERD (Extended Reach Drilling) wells is a major feature of this redevelopment program. The target layer for drilling the laterals is decided on the basis of log response and production behavior of the layers in the offset wells. In some cases, this becomes difficult because of ambiguous conventional log response in high angle/horizontal wells. The geometry of the laterals is decided after making a critical analysis of the geological model and also studying the structural configuration.