An Integrated Approach for Facies Characterization in Raageshwari Deep Gas Volcanic Reservoirs, Barmer Basin, India

Barmer Basin is one of the most prolific hydrocarbon basins of India having more than 30 discoveries to date. The Raageshwari Deep Gas (RDG) Field, situated in the southern Barmer Basin, was discovered in 2003 by exploration well Raageshwari-1 and is a part of RJ-ON-90/1 contract area operated by Cairn India. This field is characterized by tight gas-condensate reservoirs with excellent gas quality of approximately 80% methane, low CO2 and no H2S. Subsequent to discovery, the field was further appraised by six more wells and is being developed by 27 wells from 4 well-pads. The main objective of the initial development plan was to meet internal gas demand; however, based on years of encouraging well performance and additional data acquired, a revised FDP focusing on commercial gas sales in addition to internal gas consumption was submitted to and approved by the Management Committee in 2014. The field is currently being developed using deviated wells with multi-stage hydraulic fracturing to allow substantial production at economic rates.