Understanding Fractured Plays

Fractures play a big role in development and production. They affect the quality of subsurface images, distorting seismic signals in the overburden. They control production, sometimes impeding it and other times enhancing it. The latest seismic techniques and geoscience software can detect and harness fracture-induced anisotropy. Building a model from this and other field data yields a detailed view of fractured reservoir characteristics. Armed with this understanding of fractures and resource-in-place, you can determine the best development plan for the play.

Understanding Fractured Plays

Fractured Reservoir Characterization

Large scale fracturing and faulting has an important impact on the structure and connectivity of the reservoir. New imaging algorithms and dedicated interpretation tools like FaultFractureSpark provide enhanced and rapid fault interpretation.

Smaller fractures visible only at the log and core scale have an equally important role to play in naturally-fractured reservoirs. Anisotropy observed in fractured formations distorts the seismic image. Azimuthal anisotropy analysis of wide- and full-azimuth surveys and analysis of multicomponent seismic provide the parameters required to focus images using orthorhombic velocity models and migration algorithms.

This seismic anisotropy provides information on the spatial distribution of fracture intensity and orientation which can be unlocked with a suite of GeoSoftware analysis tools including ProAZ and GeoConsulting Seismic Reservoir Characterization workflows for azimuthal inversion.

Calibration with core and image log data provides the basis for quantitative interpretation of fractured plays allowing you to target or avoid fracture swarms with development wells. For reservoir model building, the ERGO fractures knowledgebase provides unique context.

 

Orthorhombic extension to HTI velocity analys...

Chris Davison | Martin Grimshaw | Eamonn Murray | Monika Kow...
©2014 EAGE

Azimuthal Fourier coefficients: a simple meth...

Jon Downton
©2011 SEG

Tilted orthorhombic imaging for full azimuth ...

Qiaofeng Wu | Yunfeng (Fred) Li | Zhengxue Li | Weishan Han
©2013 EAGE
GeoSoftware - HampsonRussell

HampsonRussell

World-class geophysical interpretation for seismic exploration and reservoir characterization, all accessible to any geophysicist.
Onshore - UltraSeis

UltraSeis

Enabling quantitative interpretation with high-quality, high-density and cost-effective seismic. A fully integrated solution for onshore reservoir development.

GeoSoftware - PowerLog

PowerLog

The benchmark for petrophysics, rock physics, facies analysis and statistical mineralogy. Collaborative multi-well log analysis made easy for better drilling decisions.

GeoConsulting - RoqScan

RoqScan

Automated mineralogy. Hard data when and where you need it. Perform detailed rock property analyses. Steer wells. Optimize completions.
Onshore - EmphaSeis

EmphaSeis

Optimize vibroseis source performance. Get better penetration and sharper images. Improve bandwidth for single or multicomponent analysis.
Subsurface Imaging - Orthorhombic RTM

Orthorhombic RTM

Rely on Orthorhombic RTM to resolve azimuthal and polar anisotropy in fractured overburden. Improve structural imaging and spatial position from full-azimuth data.