
Facies map - AAPG Wiki
Jul 7, 2016 · The figure below is a depositional facies map for the Glob alt interval's basal sequence boundary, constructed by integrating the biofacies map, the net sandstone map, and the seismic facies map (Figures 3, 5, and 4, respectively).
GeolOil - How to calculate Net-Sand and Net-Pay
Here GeolOil comes to help, allowing to compute net-sand and net-pay with big versatility in six steps: Step 1 : Declare the correct well trajectory path. Step 2 : Use "extensive upscaling" as the processing type. Step 3 : Define the cutoff system for net-sand. Step 4 : Select the stratigraphic zones to calculate the upscaling.
The Sequence Stratigraphy, Depositional Environment and …
Oct 16, 2006 · The net sand isopach maps show the morphology of the thick and thin sand intervals. The net sand isopach maps and facies descriptions are used to interpret the depositional environment of each interval.
Subsurface maps - AAPG Wiki
Jan 24, 2022 · An isochore map of net pay should be contoured using well control points and interpolated or extrapolated using available seismic and well test data and the geologist's interpretation of depositional and diagenetic history.
Calculating net to gross in Petrel : r/geology - Reddit
Jan 30, 2019 · Go to the "attribute operations" tab and click the "to the zones at level" bubble. Then select your Res_Flag, NtG, NetRes or whatever log you have for net sand. Change the average method to "integrate" and hit run.
Most net pay mapping issues occur in areas where gross pay thickness tapers from full zone thickness down to zero at the fluid contact, the wedge zone. In traditional mapping projects, a zone’s net pay is calculated at each well and those values used to build a net pay contour map.
Abstract: Principles of Net Pay Isochore Mapping, Daniel J.
With a structure or top of porosity map and a spreadsheet of net pay values, a net pay map can be constructed. The net pay values for each well within the reservoir are posted. Now by using a net sand map and a mechanical method of contouring a net pay isochore map can be generated.
Geophysics: A Simple Guide to Seismic Amplitudes and Detuning
Dec 11, 2015 · Figure 4e shows a net sand map, obtained by multiplying the N:G map of 4d by the time thickness of 4a and also multiplying by the sand velocity to obtain a net reservoir thickness estimate in metres.
Net sand (ft) map of AEB-3D reservoir - ResearchGate
Download scientific diagram | Net sand (ft) map of AEB-3D reservoir from publication: Core and well logs interpretation for better reservoir characterization in Shushan Basin, Egypt |...
Net sand map showing the sand thickness within the Cardium …
Net sand map showing the sand thickness within the Cardium Raven River Member (GR cutoff: 90 API). ... descriptions, facies analysis and core analysis data were used together with production...