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Interactive parameter adjustment for Vclay and TOC.
TOC methods in Shale Petrophysics include Schmoker, Delta LogR, Uranium, NMR, and Spectroscopy. Vclay methods include Spectroscopy, GR, Spectral GR, Neutron and Density-Neutron. One or a combination of these is designated as the final output. Where applicable, key TOC and Vclay parameters are available for interactive adjustment on the Logview. The parameters may be zoned.
Intro to Unconventional Reservoirs Suite
Sequential log analysis for organic shales. Stage and perforation design.
Complete Workflow for Unconventionals
With the Shale Petrophysics and Completion Advisor plug-ins on Techlog, you perform the petrophysical analysis and, in a lateral well, integrate with the GeoMechanics to compute Reservoir Quality and Completion Quality flags. This leads to defining the optimum placement of Stages and Perforations.
Shale Petrophysics - A Sequential Workflow
Shale Petrophysics offers a sequential petrophysical analysis designed for unconventional (organic) shales. Analysis of kerogen maturity and TOC are integrated with logic for Vclay, Lithology, Porosity, water saturation and permeability. Shale Petrophysics applies equally to vertical pilot wells and to lateral drain holes.
Visualize logs and their analysis along the lateral.
Prior to running the Completion Advisor, the Techlog platform can be used to visualize the petrophysics and GeoMechanics analysis from open or cased hole along with the logs which went into them.
Completion Advisor Quality Indicators
op: You can assess completion quality (CQ) along the interval based on GeoMechanics analysis which is enabled by the dipole sonic log.
Lay out the stages for the lateral completion.
Completion Advisor logic allows you to choose whether to spread the stages out evenly, or plan for optimum stage placement, each stage in an interval of similar stress. Stage placement can be fine-tuned interactively. For instance, gaps can be planned between some of the stages, to avoid completing tight or otherwise low quality intervals.
Compare the effectiveness of different completions.
Rapidly design multiple completion scenarios. In the engineered design (blue bars) 20 stages are placed in intervals of similar stress, perf clusters within each stage are positioned to minimize stress differential. Average frac stress across the stages has been reduced considerably relative to the Geometric design (red), reducing the likelihood of screen outs and a more uniform frac.
Multi well analysis with TL Field Map.
Shale Petrophysics is a multi-well, multi-zone application run from the Techlog Workflow Manager. Properties computed in Shale Petrophysics, in this case TOC, can be visualized via the Techlog Field Map application.
Oil Shale analysis with NMR and Spectroscopy.
In this shale oil well, Kerogen volume is computed from NMR porosity deficit. Lithology and porosity are driven by Spectroscopy and kerogen volume. NMR free fluid volume, with a short T2 cutoff, yields an estimate of S1 (light, producible oil). An empirical oil productivity index, RPI, is computed from S1 and TOC. In gas, gas in place is estimated from the NMR TGIP method.
Unconventional Reservoirs Suite.
Unconventional Reservoirs Suite.