Access Restriction

Author Downton, Jonathan E.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Avo Study ♦ Pike Peak ♦ Avo Analysis ♦ Preliminary Result ♦ Aostra Contract ♦ Steam Front ♦ Rock Physic Study ♦ Modeling Study ♦ Forward Modeling Study ♦ Synthetic Gather ♦ Actual Seismic ♦ Seismic Response ♦ Enhanced Oil Reservoir Production ♦ Forward Modeling ♦ High Temperature ♦ Reservoir Change ♦ Extrinsic Variable ♦ Bandpassed Reflectivity Estimate ♦ Template Seismic Study ♦ Steam Chamber ♦ Low Fluid Modulus ♦ Elastic Property ♦ Pike Peak Thermal Project ♦ Avo Inversion Technique ♦ Log Control ♦ Reservoir Condition ♦ Fluid Stack React
Abstract An AVO study was performed to determine the potential of AVO to map the steam chamber, to aid in the enhanced oil reservoir production of the Pikes Peak Thermal Project. The study consisted of three phases: a rock physics study, a modeling study and a template seismic study. The rock physics study helped determine the relationship between the elastic properties of the reservoir and the extrinsic variables: temperature and pressure. This understanding was used along with log control to do a forward modeling study. Synthetic gathers were generated under a variety of reservoir conditions to model the seismic response of the reservoir. The knowledge gained from the modeling study was used to design and interpret the AVO study. Two AVO inversion techniques were found helpful in describing reservoir changes. The bandpassed reflectivity estimate of lambda and the fluid stack react anomalously to the high temperatures and low fluid modulus associated with the steam front. This was predicted based on forward modeling and observed on the actual seismic. This offers the potential for 4D AVO studies to map the steam front as a function of time.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study