Two mathematical models for predicting elastic parameters in the absence of some necessary logs were developed and these models can be used in the Niger Delta and in other sedimentary basins of the world.
Vp/Vs against acoustic impedance crossplots coloured with density log indicated the pore fluid in the wells and mapped sand bodies to be water and oil. RokDoc is also capable of filtering the data being plotted I used crossplots filtered by a low or high shale to look at the properties of just the sands. The result of the rock physics analysis carried out using crossplots of acoustic impedance against P-wave velocity coloured with gamma ray log was able to separate the lithology into sand and shale both within the wells and the reservoirs of interest with the aid of the relevant rock physics models. Petrophysical properties were calculated from the logs using the respective equations and pseudo shear wave velocity was estimated from the P-wave velocity. Suite of logs from four wells were provided, but only three wells were used for the analysis because well 3 does not have density log. Perform forward modeling using rokdoc to understand the relationship between fluid. Different plays and situations will require modifications to this workflow and additional RokDoc tools.Accurate differentiation of reservoir fluid and determination of elastic parameters when some logs are not available is a major challenge in the petroleum industry and this study explored the potential of rock physics modeling to resolve these challenges. AVO analysis using intercept gradient crossplot to validate seismic. It is designed to highlight some of RokDoc’s extensive functionality, rather than an exhaustive list. RokDoc OverviewThe below shows a snapshot of RokDoc’s capabilities in a generic workflow.
#Rokdoc crossplot full
Define polygons to identify different AVO classes and facies in seismic data, or utilise the weighted stack cross-plotter to rotate and manipulate pairs of inversion volumes to reveal hidden lithology and fluid information. Emerson’s Paradigm® 18 provides a next-generation platform that includes new applications for advanced automation using machine learning methods, enhanced integration across the full range of Paradigm solutions, more effective collaboration, with applications running on the Cloud, and optimization of processes and. LambdaRho-MuRho Crossplot for Reservoir 1 (Freeman 004ST1).
#Rokdoc crossplot software
The RokDoc 3D cross-plot allow users to integrate well, seismic and rock physics data and establish whether inversion results are consistent with forward models from well data. Ikon Sciences RokDoc software packages were employed for the data processing and. RokDoc makes it simple to perform all the usual fluid substitutions, variable contacts and pressure perturbations, etc.The addition of the RokDoc Reservoir Characterisation modules to your tool kit, brings a range of sophisticated tools convert existing inversion volumes into meaningful and accurate geological rock properties for prospect evaluation.
#Rokdoc crossplot pdf
Dialog for RokDoc PDF Import Imports Probability density functions in RokDoc ASCII format.
If you have rock physics litho fluid (Lid) model data created using DUG Mod+ or provided through DUG’s consulting arm, you can map potential physical features and distinguish between such. Sections of a trace can be selected and the corresponding points in the scatter plot will be highlighted. Using the Rock Physics modules a 'basic' RokDoc user will easily make geological ‘sketches’ of a seismic interpretation and then determine if the synthetic matches the seismic. Dialog box to display properties within points in crossplot. Emerson’s Paradigm 18 provides a next-generation platform that includes new applications for advanced automation using machine learning methods, enhanced integration across the full range of Paradigm solutions, more effective collaboration, with applications running on the Cloud, and optimization of processes and. Crossplots allow you to analyse relationships between two datasets via colour coded scatter plots. The tools can be used to identify porosity and many other types of geological variations, based on seismic and well data. RokDoc has improved its powerful cross-plot functionality with updated default settings, enhanced axis and color scaling, as well as automatic user. RokDoc has unparalleled rock physics modelling capabilities and Rock Physics Model Templates. Use it to analyse well and seismic data, determine value and apply quantitative methods to predict rock, fluid and pressure properties.With RokDoc seismic data can be integrated with log data and pressure data. Implemented a new concept for semblance calculation for velocity picking by utilizing signal envelope, methods for Pore Pressure computation, various crossplot utilities and managed efficient handling of large 3D pre-stack data-set in Seis-P3 software. Rokdoc 6.4.2RokDocRokDoc has been developed in collaboration with major oil companies and academic experts since 2001.
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