DoodleTrain

Dynamic Reservoir Characterization – Multicomponent 4D

Instructor: Steve Roche / Thomas Davis
Date: November 6 - 7, 2017
Duration: 2 days
Members (early bird/price): CAD$ 800/1000 (plus GST)
Non-members (early bird/price): CAD$ 900/1100 (plus GST)
Location:TBA
Time: 8:30 am - 4:30 pm

Course Description

Completion and production processes cause dynamic changes in reservoir properties including pressure, saturation and permeability. The most accurate geophysical tool for monitoring these changes is time-lapse multicomponent seismology, specifically in delineating the spatial distribution of the changes. Studies over the past twenty years by the Reservoir Characterization Project (RCP) document the power of multicomponent seismology to observe and quantify these dynamic changes. RCP’s studies illustrate that more accurate quantitative measurements of reservoir properties can occur through the time-lapse multicomponent seismic monitoring and that these measurements must be introduced into dynamic reservoir characterization for more accurate prediction of reservoir performance.

This course covers time-lapse (4-D), multicomponent (9-C), 3-D seismic monitoring studies performed within RCP at Vacuum Field, New Mexico, Weyburn Field, Saskatchewan, Rulison Field, Colorado, Postle Field, Oklahoma and Delhi Field, Mississippi.   Both Vacuum and Weyburn Fields are mature carbonate reservoirs undergoing tertiary recovery using CO2 injection.  Postle and Delhi Fields are clastic sandstone reservoirs, also undergoing tertiary CO2 injection.  Rulison Field is a tight gas sandstone reservoir within a basin-centered gas play. Results show that pressure and fluid changes associated with the reservoir processes result in rock property changes detected using surface 9-C seismic data over time (dynamic reservoir characterization).

Purpose of the course is to provide real case studies of multicomponent seismic applications towards an actual dynamic reservoir problem.  Course participants will view real data and learn from the experiences gained within the Reservoir Characterization Project at Colorado School of Mines.  Topics include geology, reservoir characteristics, rock physics review specific to the problem, multicomponent overview, and details of multicomponent (9-C) seismic data acquisition & processing.  Main part of the course will be the integration of the geological, reservoir engineering and geophysical data into an interpretation consistent with all data.

Many time-lapse projects being reported in the literature today are focused on reservoirs where compressibility is the primary time-lapse signature.  This study focuses on carbonate and clastic rocks where changes in rigidity, detected using measurements of shear wave anisotropy, are the primary observations to infer reservoir processes. All projects, with the exception of the Delhi Field study, are full 9-C data volumes, utilizing both vertical and horizontal vibrators as P- and S-wave sources recorded by multicomponent geophones.

Geoscientists curious about multicomponent applications in both static and dynamic reservoir characterization will benefit from attending.  Emphasis is on real data examples but also provides a general theoretical background to relate the data observations and conclusions to current research efforts.  This course offers a head start up the multicomponent learning curve by presenting case studies of dynamic reservoir characterization projects from field records through multidisciplinary integration.

Biography

Thomas L. Davis, PhD, is a University Professor Emeritus at the Colorado School of Mines and founded the Reservoir Characterization Project (RCP), an industry funded consortium now in its 32nd year. RCP received the Distinguished Achievement Award from the Society of Exploration Geophysicists (SEG) in 2014. He is active member in SEG as an organizer for technical conferences, workshops and continuing education programs and has served as SEG’s Second Vice President, Technical Program Chairman, and Distinguished Lecturer. He received the C.J. Mackenzie Award from the Engineering College of the University of Saskatchewan, the Milton B. Dobrin Award from the University of Houston, and the Dean’s Excellence and Melvin F. Coolbaugh Memorial Awards from the Colorado School of Mines. He was a co-recipient of the best poster award of the SEG in 2009 for a presentation on multicomponent seismic applications to tight gas fractured reservoir characterization and the southwest section of AAPG in 2011 on CO2 flood monitoring in Postle Field, Oklahoma.

Steve Roche is Manager of Geophysics with Cimarex Energy Corp in Tulsa, Oklahoma.  He received his B.Sc. in Geophysics from the University of California, Riverside, in June 1978 and worked for Geophysical Service, Inc (GSI and HGS) as an Area Geophysicist for the Permian Basin Region of West Texas/Southeastern New Mexico. In 1994, Steve returned to school, attending the Colorado School of Mines as a member of the Reservoir Characterization Project (RCP), studying multicomponent seismology and 4-D applications for reservoir characterization. After receiving his Ph.D. in 1997, he joined Output Exploration, the oil & gas exploration division of Input/Output, working on exploration projects and multicomponent applications within I/O. Steve joined Veritas DGC in February 2003, specializing in multicomponent seismic research in the position of Principal Geophysicist – Multicomponent Research & Development for CGGVeritas. Steve joined Cimarex in April 2011.