Analysis, inversion, geostatistical simulation, and visualization of porosity in a carbonate gas reservoir
Journal Article
·
· JPT, Journal of Petroleum Technology
OSTI ID:500970
Integration of well and seismic data is essential when predicting reservoir-rock properties from seismic data. The goal of this study was to quantify the total-reservoir-pore-volume (PV) uncertainty associated with porosity. Uncertainty in the interval velocities within the reservoir was also examined. However, the authors did not evaluate the reservoir-PV uncertainty caused by depth conversion, water saturation, or other parameters. The field has seven wells and is covered by a three-dimensional (3D) seismic survey. Two of the wells lack either a sonic or density log or both above the reservoir interval. Because of the large volume of seismic data and the small number of wells, the authors felt that it would be useful if the range of reservoir properties between the wells could be constrained by use of the seismic data. Acoustic impedance (AI) is a logical choice for estimating porosity because AI should be related to porosity. Frequently, porosity values are calculated from both the sonic and density logs. The Wyllie travel-time equation relates travel time to fractional porosity, porosity can be related to density, and AI is related to velocity and density.
- OSTI ID:
- 500970
- Journal Information:
- JPT, Journal of Petroleum Technology, Journal Name: JPT, Journal of Petroleum Technology Journal Issue: 5 Vol. 49; ISSN 0149-2136; ISSN JPTJAM
- Country of Publication:
- United States
- Language:
- English
Similar Records
Porosity and pore structure from acoustic well logging data
Effect of isolated biomoldic porosity on log analysis of Pennsylvanian carbonate reservoirs: Case history
Porosity and formation pressure prediction from seismic data
Journal Article
·
Sat May 01 00:00:00 EDT 1993
· Geophysical Prospecting; (United States)
·
OSTI ID:6381599
Effect of isolated biomoldic porosity on log analysis of Pennsylvanian carbonate reservoirs: Case history
Conference
·
Tue Aug 01 00:00:00 EDT 1989
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:5661237
Porosity and formation pressure prediction from seismic data
Conference
·
Thu May 01 00:00:00 EDT 1986
· Am. Assoc. Pet. Geol., Bull.; (United States)
·
OSTI ID:5199516