The Reservoir Characterization Advisor- Fluvial Deltaic: Software Capturing the Methodology of Integrated Characterization
KNOX, PAUL R., W. GERALD WHITE, MARK H. HOLTZ, and JEFFREY G. PAINE
Advanced geological, geophysical, and engineering methods must be integrated to accurately locate economic volumes of unrecovered hydrocarbons in mature reservoirs. Many operators of mature fluvial-deltaic reservoirs may lack experience in such studies. A methodology successfully applied in the Frio Formation of South Texas has been summarized in a software application for microcomputers titled the Reservoir Characterization Advisor- Fluvial Deltaic (RCA-FD).
The RCA-FD leads users through the four steps of integrated characterization: 
(1) determination of reservoir architecture, (2) documentation of fluid flow 
history, (3) integration of fluid flow history and architecture to identify 
compartmentalization, and (4) identification of specific opportunities for 
reserve growth (recompletions and targeted infill drilling). Sufficient 
background is provided in each discipline to allow the geoscientist to carry out 
specialized tasks. Information covering correlation and facies interpretation 
from
 well 
logs
 is provided for nongeologists, and background on 3-D seismic 
survey design and interpretation is given for those without a working knowledge 
of geophysics. Engineering background and guidance in constructing accurate 3-D 
reservoir visualization models are provided for nonengineers. Finally, a 
semiquantitative 
quick
-
look
 analysis using readily available parameters is 
incorporated to prioritize reservoirs for detailed study.
The software is user-friendly, extensively illustrated, and runs on Windows 
3.1 or Windows 95. The RCA-FD is publicly available and requires no additional 
support software. Use of the RCA-FD can substantially improve the near-term 
recovery of oil 
from
 mature fluvial-deltaic reservoirs by making advanced 
characterization studies more achievable and focused.