Time-lapse AVO analysis for reservoir monitoring of Paluxy formation, Delhi Field, Louisiana

摘要

Delhi Field is a mature oil and gas field located in the northeastern part of Louisiana. The reservoir intervals for this field are Tuscaloosa and Paluxy Formations with an average net pay section of 60 m, average porosity of 21%, and average permeability of 1400 mD. The field has been producing since 1944 and currently the field is being flooded by CO_2 since June 2009. In order to properly monitor the reservoir during the CO_2 injection, a time-lapse seismic survey was acquired between 2008 and 2010 in this field. The first survey was shot in January 2008, before the first phase of CO_2 injection, while the second survey was shot in June 2010, during the CO_2 injection.