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Modelling Azimuthal NMO in Laterally
Heterogeneous HTI Media
By Ed Jenner
Article from the September 2010 issue of First Break
 For traveltime data, it is known that lateral heterogeneity can manifest itself as anisotropy (Grechka, 1998; Grechka and Pech, 206), potentially distorting inversion and interpretation of derived medium properties. Jenner (2008) modelled lateral velocity variations less than the scale of a CMP spread and concluded that the distortions in effective NMO ellipses are not suppressed by Dix-type conversion to interval NMO ellipses. In addition, this modelling also demonstrated that a particular azimuthal velocity anomaly observed in field data could potentially be explained solely by lateral velocity variations in an isotropic overburden. A characteristic of isotopic models containing lateral heterogeneities was that effective (RMS) and interval NMO ellipses were highly correlated and displayed similar patterns as the lateral heterogeneities, even when those heterogeneities were quite complex. Read the Technical Article |
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Seismic Interpretation and Reservoir Solutions
Imaging Solut[ION]s spoke to John Tinnin, Director Reservoir Solutions for GXT, about how seismic interpretation and Reservoir Solutions support shale exploration and production.
Imaging Solut[ION]s: Please describe GXT's Reservoir Solutions.
Leveraging GXT's data processing expertise, we provide a broad range of services, from individual services such as simultaneous inversions or pore pressure prediction, to fully integrated interpretations including selection of optimized well locations. Utilizing these and other offerings, we help clients get the most out of their exploration dollars, maximize production, and deliver optimized solution to address their geophysical challenges.
Read the Full Interview
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The Power of Shales - Unlocking Unconventional Reservoirs
A Hart's E&P Webinar
While not a new phenomenon, shale plays are becoming of increasing interest as E&P companies search for alternative resources. Successful E&P operators in shales are increasingly using seismic to maximize production. Learn from leading experts how seismic can help you understand the geology of shale plays to optimize your wellbore placement and improve overall well productivity.
What You Will Learn: - The value of seismic data in shale plays
- How operators are using seismic to enhance their productivity in shales
- How seismic data can provide information about stress fields, fractures, and rock properties
Click here to register and view the webinar on demand.
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Seismic's Role in Shale Plays Shift Dramatically
Article from the October 2010 issue of E&P Daily News
While E&P activities in North American shale plays continue to heat up, helping shale operators to high-grade well locations and design well programs in shale plays through the use of seismic is nothing new to ION Geophysical. Since 2003, ION has delivered more than 12,000 sq miles (31,080 sq km) of processed unconventional reservoir data from around the world. During that time, it has seen a dramatic shift in the value and role of seismic data in shale operations. Economic viability in shale plays has been achieved primarily through advancements in two engineering technologies - horizontal drilling and hydraulic fracture stimulation. Read the Article
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Global Gatherings
January 12-14
- GEOindia
- Greater Noida, New Delhi
February 8
- GMG User Meeting
- London, England
February 16-18
- North American Prospect
Expo (NAPE)
- Houston, USA
Email us for further information on these events
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