Over time, the seismic data processing workflow, which is applied to transform the raw shot records into migrated, interpretable images of the subsurface, evolves. Typical raw shot records from the Permian Basin vary in quality from low (left) to average (right).
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In more extreme cases, this impairs our ability to apply modern processing workflows such as offset vector tile binning, and fundamentally limits the value of the information derived from the data, even after the best reprocessing workflows have been applied. Acquisition of the seismic data with vintage low cost acquisition design schemes consisting of a coarse and irregular grid of shot points and receiver stations, and a restricted range of vibroseis sweep frequencies, particularly at the low end.This may be due to a number of reasons including: Interpretation of legacy Permian Basin seismic data is difficult and may be of limited value when the quality of the available seismic stacks and gathers falls towards the lower end of the spectrum, as is often the case. Indeed, the richness of this resource base has made the Permian Basin one of the most resilient petroleum provinces in North America to today’s relatively low oil price.
DOES SEISMIC PROCESSING NEED FP64 HOW TO
Considered a mature basin twenty-odd years ago, evolution of our play concepts and advances in our understanding of how to extract oil and gas from shale formations have created a smorgasbord of new production opportunities in the basin, and many companies have entered the basin over the last few years. The Permian Basin is a fantastically rich petroleum province. Permian Basin Imaging Challenges and Opportunities Companies that treat seismic data as a dynamic resource and invest in seismic reprocessing projects should expect to gain a competitive advantage over rivals who make decisions using information extracted from more out-of-date seismic volumes. Rather, continual improvements in the seismic processing workflow reveal material seismic imaging improvements over time frames of 3 to 5 years (with a good processing contractor who uses current processing algorithms and workflows), as described in this article. The seismic data we use on a daily basis for well planning and investment decisions should not be viewed as a static resource. Seismic data is thus undeniably a key component of the oil and gas industry’s core exploration and development businesses. Year after year, multi-billion-dollar investment decisions are made, in part based on this information. Quantitative Interpretation projects follow with the goal of teasing out information about the internal structure of our reservoirs from seismic amplitude versus offset analyses.
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Using seismic data, interpreters map changes in reservoir depth, thickness and character between well locations, and identify the larger faults that create potential drilling hazards and disrupt reservoir continuity. Data + Geometry Data formats: SEG-Y, SEG-D (including rev.3), SEG-2, 80.Seismic data enables us to visualize the subsurface in three dimensions with sufficient vertical resolution to identify all but the thinnest of our oil and gas reservoirs.