Frontier exploration by electromagnetic scanning — A deep water example

Suffert, Joanne; Roth, F.; Sangvai, Pranaya; Bastia, Rabi; Tyagi, Anil K.

doi:10.1190/1.3063737

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…The shale resistivity as measured by the standard logging suite is around 0.7-0.9 ohmm. Interpretation of previously collected CSEM data in the Krishna-Godavari Basin , Suffert et al, 2008, as well as available anisotropy logs indicated a higher vertical resistivity, about 1.5 to 2.0 times higher than the horizontal resistivity.…”

Section: Background Information For Survey Areamentioning

confidence: 75%

Interpreting CSEM data in complex resistivity regime

Lorenz

Pedersen

Akella

et al. 2010

ASEG Extended Abstracts

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Section: Background Information For Survey Areamentioning

confidence: 75%

Interpreting CSEM data in complex resistivity regime

Lorenz

Pedersen

Akella

et al. 2010

ASEG Extended Abstracts

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“…The application window has since the introduction of the method been expanded to include frontier exploration, where large-scale, coarse 3D grid surveys can be a very useful tool (Suffert et al, 2008;Morten et al, 2009). In these situations, it is essential to go to 3D acquisition with azimuth data as demonstrated in Morten et al (2009).…”

Section: Introductionmentioning

confidence: 99%

3D reservoir characterization of a North Sea oil field using quantitative seismic & CSEM interpretation

Morten

Roth

Timko

et al. 2011

SEG Technical Program Expanded Abstracts 2011

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“…Marine CSEM has become a method for 3D imaging of areas with complex geologies, which is applied by many major oil companies, either as a stand-alone frontier exploration tool (Monk et al, 2008;Suffert et al, 2008) or in conjunction with, or addition to other geophysical probes. Recent published case studies for the latter include Carrazone et al (2008), Price et al (2008) Plessix and van der Sman (2008), , and .…”

Section: Introductionmentioning

confidence: 99%

Exploration case studies in mature Gulf of Mexico basins using 3D marine CSEM

Yuan

Pham

Zach

et al. 2009

SEG Technical Program Expanded Abstracts 2009

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High salt concentrations and small targets in complicated geology often found in the Gulf of Mexico have been an impediment to the application of marine CSEM techniques, until recent advances in operations, acquisition hardware and advanced processing techniques permit 3D-mapping of complex resistivity distributions. Using two examples from a recent prelease sale campaign, we demonstrate the successful application of the entire value chain from customized acquisition grids, multi-frequency acquisition to processing of data including wide-azimuth lines with reliable phase and amplitude, and subsequent inversion-based 3D interpretation. Advanced interpretation is based on an iterative Hessian-based inversion with quasi-Newton update and fast finitedifference time-domain modeling. Inversion results are used to construct resistivity distribution consistent with 3D-seismic images. During the campaign, we successfully addressed the client's need to resolve small targets (2 km x 2 km) with low-resistivity pay (Δρ < 5 Ωm), many found in the vicinity (<1 km) of large salt bodies.

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Frontier exploration by electromagnetic scanning — A deep water example

Cited by 6 publications

References 10 publications

Interpreting CSEM data in complex resistivity regime

Interpreting CSEM data in complex resistivity regime

3D reservoir characterization of a North Sea oil field using quantitative seismic & CSEM interpretation

Exploration case studies in mature Gulf of Mexico basins using 3D marine CSEM

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