|Archive of Texas PTTC Workshops
Predicting Reservoir Quality
Using Diagenetic Models
April 11, 2001, San Antonio, Texas. Co-sponsored by PTTC Texas Region
and South Texas Geological Society.
Presenters: Linda Bonnell and Robert Lander, Geocosm
LLC, Austin, Texas; and Steve Laubach, the Bureau of Economic Geology.
Advances in the study of diagenesis over the past 10 years have finally
made it possible to accurately predict the physical properties of some
sandstone types without using well or outcrop control data. These advances
are based on a breakthrough in the classic problem of quartz cementation
during diagenesis, coupled with important new models of sandstone compaction
When integrated with depositional and burial history models, these models
can be used to predict critical rock properties, such as porosity and
permeability, through both time and space. These models are being extended
to predict the effects of faulting and fracturing on sandstone fluid-flow
characteristics, seismic attributes, and other fundamental rock properties.
This half-day workshop introduced predictive sandstone models of diagenesis,
porosity and permeability, and fracture characterization and quality.
"Storage and Producibility in Sandstone Reservoirs: Why Should You Care
About Reservoir Quality?" Linda Bonnell, Geocosm LLC.
"Sandstone Reservoir Quality Models." Robert Lander, Geocosm LLC.
"Approach to Reservoir Quality Risking." Linda Bonnell.
"Producibility in Tight Gas Reservoirs: Why Should You Care About Fracture
Quality and Scaling?" Steve Laubach, Bureau of Economic Geology, Austin,
Texas, and Robert Lander.
"Major Controls on Fracture Quality." Steve Laubach.
"Approaches for Fracture Characterization." Steve Laubach.
For more information about this and other PTTC
workshops, please contact Sigrid Clift at
512-471-0320 or e-mail firstname.lastname@example.org