Successful development of known fields requires high-quality seismic data in order to accurately delineate the reservoir through processes such as seismic inversion and reservoir characterization studies. In the new oil price regime this has become even more important as oil companies try to keep ...
Technical Content
Predicting Reservoir Heterogeneity in The Upper Cretaceous Frontier Formation in the Western Powder River Basin - An Integrated Stratigraphic, Sedimentologic, Petrophysical, and Geophysical Study
Predicting Reservoir Heterogeneity in The Upper Cretaceous Frontier Formation in the Western Powder River Basin - An Integrated Stratigraphic, Sedimentologic, Petrophysical, and Geophysical Study
This study explores the predictive capability of an integrated geologic, petrologic, petrophysical and geophysical model based on detailed facies analysis of thirteen sediment cores expanded over 400 wireline log suites and 440 square miles of 3D seismic in the western Powder River Basin, Wyoming.
Maximizing Recoverable Reserves in Tight Reservoirs Using Geostatistical Inversion from 3-D Seismic: A Case Study From The Powder River Basin
Maximizing Recoverable Reserves in Tight Reservoirs Using Geostatistical Inversion from 3-D Seismic: A Case Study From The Powder River Basin
The economics of unconventional plays can be improved if horizontal wellbores target facies with favorable reservoir and geomechanical properties. An integrated, multi-disciplinary approach has been developed in order to reduce economic risk, facilitate improved and faster decision making and enable more efficient and effective ...
Commonly fitted by an ellipse, AVOAz is actually better approximated using limaçons. The article begins by reviewing the properties of the original limaçon, then explains how they can apply to AVOAz and finally illustrates how limaçons can help with the interpretation of anisotropy on ...
Improved subsalt images with shot patch-based angle gather illumination weighting
Improved subsalt images with shot patch-based angle gather illumination weighting
One way to address the problem of weak subsalt illumination is through angle gather illumination weighting (AGILW). In this technique, synthetic data mimicking the field data are generated and migrated the same way as the field data. Illumination weighting scalars are obtained by measuring ...
A Seismic Interference Noise Experiment in the Central North Sea
A Seismic Interference Noise Experiment in the Central North Sea
The test showed that, in the central North Sea, with appropriate denoising, we were able to successfully remove SI from all azimuths down to a vessel separation of less than 25 km. By adjusting vessel speeds to make sure that SI did not arrive ...
Ray-tracing-based Input Data Selection RTM - A Target Oriented Approach for Clearer Subsalt Image
Ray-tracing-based Input Data Selection RTM - A Target Oriented Approach for Clearer Subsalt Image
We present an input data selection workflow based on 3D ray-tracing to improve the RTM image in areas of poor illumination and low signal-to-noise ratio. It is effective for imaging subsalt three-way closure with weak subsalt primaries and strong noise levels. The workflow can ...
Dynamic-image warping and volumetric Vp/Vs constraint for nonlinear PP/PS tomography
Dynamic-image warping and volumetric Vp/Vs constraint for nonlinear PP/PS tomography
Serial processing of PP and PS waves leads to depth inconsistencies between the PP and PS migrated images. The link between P- and S-velocity model is the Vp/Vs ratio, whose estimation is an important task in multicomponent analysis because of its applications to lithology ...
Simultaneous Shooting for Sparse OBN 4D Surveys and Deblending Using Modified Radon Operators
Simultaneous Shooting for Sparse OBN 4D Surveys and Deblending Using Modified Radon Operators
Discusses use of simultaneous-source acquisition for sparse (ROV-deployed) OBN surveys, using time and motion studies to quantify impact on acquisition time. Also describes new technique for sim-src crosstalk noise attenuation using modified Radon operators. Finally, application to Gorgon OBN data for baseline and monitor ...