Features

From well logs to defensible capital decisions

RRS is built for petrophysicists, reservoir engineers, economists, and asset teams who need one connected path: formation evaluation on your machine, probabilistic volumetrics, investment economics, scenario planning, and decision reporting, without copy-paste drift between tools. Well log files and interpretation cases stay in a project folder you choose; only DLIS conversion (session-only, file not retained) and optional CSV imports on other modules touch the server, and CSV never stores your file.

Well Correlation (local-first)

Align multiple wells on one depth axis, pick and correlate formation tops, draw tie-lines, and flatten on a marker. Post tops or zone thickness to a to-scale base map contoured by inverse-distance weighting or Delaunay triangulation. Wells and correlation projects stay in a project folder on your machine.

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Formation Evaluation (local-first)

Load LAS and DLIS well logs into a browser petrophysics workspace: log viewer, Vsh, porosity, Sw, net pay, crossplots (neutron–density, Pickett, Hingle, M–N, Buckles, GR histogram), results, and sensitivity. 6 Sw model families (Archie, Simandoux, Indonesia, dual-water, Waxman-Smits, and Juhasz). Case JSON, LAS, trend lines, and display templates save to a project folder you choose on your computer, no well log storage in our database. Stage zone averages to Volumetrics through an explicit in-browser bridge.

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Geomechanics (1D mechanical earth model)

Build a wellbore stability model from sonic and density logs inside the Formation Evaluation workspace: dynamic and static elastic properties (with Castagna or Greenberg–Castagna shear synthesis), overburden, Eaton or Bowers pore pressure with fitted normal compaction trends, UCS and friction angle, poroelastic Shmin and SHmax, the collapse-to-breakdown mud weight window in ppg EMW, a Zoback stress polygon, and sanding-onset critical bottomhole flowing pressure. Calibrate against imported RFT/MDT and LOT/FIT points; rotate the stress tensor for deviated and horizontal wells.

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Volumetrics & reservoir uncertainty

Run deterministic and Monte Carlo workflows with explicit assumptions for reservoir risk quantification. 6 distinct saturation model families across Formation Evaluation and Volumetrics combined, with tornado sensitivity and Spearman rank drivers.

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Investment & economics

Decline-driven multi-asset cash flow with tax, royalty, opex escalation, abandonment, and carbon pricing stated explicitly, then NPV and IRR as distributions rather than a single point.

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Scenarios & decision reporting

Rank development cases against NPV and IRR thresholds, solve break-even price, capex and opex, then export a single-scale Decision Dashboard and an Executive Summary memo built on the same workspace.

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Connected workflow

6 integrated modules, Formation Evaluation through Decision Dashboard, with explicit handoffs instead of silent overwrites between petrophysics, volumetrics, economics, and scenarios.