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The structure of a field often accounts for the greatest uncertainty in terms of in-place reserves. Obtaining quick and accurate answers is critical. RMS™ Mapping combines advanced mapping and industry-standard algorithms. Integrated workflows enable geoscientists and engineers to build the structural framework of their field with confidence. RMS Mapping allows users to map geological horizons in depth or time.  Time horizons and fault data can be converted from time to depth using a 3D velocity model. The velocity model is built using a variety of user-defined functions. 

A complex fault model with many faults (Y-type geometry) is built within a structure model in RMS using the integrated structural modeling tool.
RMS Mapping is tightly integrated with the other RMS modules. This delivers quick iterations during the interpretation phase, which are then directly available for the rest of the workflow. All the steps in the mapping workflow are included as standard functionality. There is no need to run macros or use third-party plug-ins to carry out common mapping tasks. 

Data can be accessed directly through database links to OpenWorks and GeoFrame. Data may also be imported using a variety of flexible ASCII data loaders or through fixed file formats. All standard input data types, such as lines, surfaces, points and well data are supported. RMS includes utilities for the use and management of datums, projections and local coordinate systems. 

RMS Mapping Benefits

  • Integration with other RMS modules makes results easily available throughout the workflow.
  • Advanced algorithms deliver fast and accurate mapping. 
  • The ability to simultaneously display all data types in 2D and 3D views enables the user to easily validate the structural model.
  • A modern GUI allows the user to become familiar with the application quickly, thus accelerating the learning curve.

RMS Mapping Features 

  • A complete range of both industry-standard and new advanced algorithms are available to allow the fast and accurate mapping of time, depth, thickness and property maps. Algorithms include the Mask method, Local and Global B-spline, Converging average and Kriging.
  • Build-in, comprehensive volumetric analysis from maps. The user has access to both quick 2D volumetric tools and complete 3D volumetric analysis. Results can be produced by layer, fault block, facies, or license block. Accurate answers are produced as partial cell volume calculations are utilized. Reports are delivered in ASCII or Microsoft Excel formats. 
  • A modern user interface with a tree and folder layout of the data not only enables all the data to be stored in a single project location, but also has full session saving capabilities. All user preferences, views and visual settings are stored as part of the project. 
  • Advanced graphics: Both 2D and 3D views are available for displaying and QC’ing modeling results. The multiview environment enables the simultaneous display of both 2D and 3D view montages on a single page. All data types can be displayed, including seismic, which gives the user an opportunity to validate the structural model. Data can be edited interactively in 2D and 3D to ensure consistency.

Structural Uncertainty 

The best-estimated structure model (the average of all the realizations from simulation) is predicted from structure uncertainty analysis.

The uncertainty of horizons derived from seismic interpretations has a key, but often overlooked, impact on in-place reserves. RMS Mapping provides tools for structural uncertainty evaluations, equally important in both development and exploration projects. Multiple realizations of horizons and isochores can be automatically simulated and incorporated in user-defined workflows. Reserves results are tabulated and comparisons between different realizations can be made graphically using histogram plots. A full range of statistics is also available to enable the easy extraction of P10, P50 and P90 results. 

Structural Modeling 

The internal layering and all faults in the reservoir are quickly and easily built using the RMS integrated structural modeling tool. RMS Structural Modeling can handle thousands of faults and all fault geometries, allowing complicated models to be built without simplification. The horizon model can be generated from any surface data and can automatically deal with any repeat sections. The horizon model combines well information and the fault framework to build a complete structural model, while also handling unconformities and performing thickness correction. In addition, high-resolution structural maps can be created. These can display fault pinch outs and shadow contours, and with RMS differing fluid fill, can be mapped in separate regions and zones.