Every Converge module

A full equation-of-state workbench. Describe the fluid from a lab composition, split and lump the plus fraction, match the lab experiments, then hand black-oil tables or a compositional deck to the rest of the project.

• Peng-Robinson 1976 and 1978, SRK, Peneloux volume shift
• Whitson gamma split of the plus fraction, custom lumping
• Stability, flash, bubble and dew points
• Phase envelope with quality lines and critical point
• CCE, differential liberation, CVD, multistage separator
• Swelling test and separator optimisation
• Regression with bounds, weights and per-point exclusion
• Live tuning, run history, undo and compare
• LBC viscosity, hydrate screening
• Model library: several fluids per project, compare envelopes

When a full composition is more than the job needs, start from oil gravity, gas gravity and GOR. Published correlations give oil, gas and water properties against pressure, compared with your lab points.

• Oil, gas and water properties from correlations
• Honour a measured bubble point
• Lab match plots and tables
• Tables flow to every other module

The tuned fluid leaves Converge in the format your next tool expects, for eight simulators. Black-oil tables come from flashing the equilibrium oil through your separator train, not from the reservoir flash.

• PROSPER, MBAL and GAP black-oil tables
• REVEAL and Eclipse PVTO / PVDG
• CMG IMEX black-oil tables
• E300 compositional deck
• CMG GEM compositional deck
• CSV of every table

Reads a lab report in PDF, Excel or Word, builds the fluid model, runs the engineering calculations you ask for and explains the results. Its models are drafts until you accept them, and tuning stays with you. It works with Claude, Gemini, OpenAI or Kimi. Read how it works.

Inflow and outflow on the project fluid, with nodal analysis to find the operating point.

• PI, Vogel, Fetkovich, Jones, Darcy with skin
• Gas back-pressure, horizontal and fractured wells
• Hagedorn-Brown, Beggs-Brill, Gray, Duns-Ros
• Deviation survey and temperature
• Nodal analysis, sensitivities, lift-curve export
• Gas lift and ESP design, chokes, erosion and liquid loading

Tank models on the project fluid, from diagnostic plots to a history match and forecast.

• Oil, gas and condensate tanks with gas cap
• Schilthuis, Fetkovich, van Everdingen-Hurst, Carter-Tracy aquifers
• Havlena-Odeh, Campbell, Cole and p/Z plots
• Drive indices
• Automatic history match and forecast
• Multi-tank

Decline models fitted to production history, with uncertainty bands.

• Arps, modified hyperbolic, Duong, stretched exponential
• Automatic fit
• P90 / P50 / P10 bands and type wells
• Flowing material balance

Pressure-transient analysis from diagnostics to a regressed analytical model.

• Log-log derivative diagnostics
• Horner and MDH
• Analytical models with boundaries, dual porosity and fractures
• Automatic regression

Gathering networks built on the same wells and fluid, solved and optimised together.

• Drag-and-drop gathering network
• Multiphase pipelines, chokes, compressors, separators
• Network solve
• Gas-lift and choke optimisation

A grid simulator that reads the project fluid directly.

• Three-phase black-oil grid simulator
• Wells with rate and pressure controls, schedules
• Pressure and saturation maps over time

Reservoir, wells and network run together through time, so a change in one shows up in the others.

• Reservoir, wells and network coupled through time
• Scenario comparison
• Field-development screening

Cash flow and fiscal terms on your production profile.

• Cash flow, NPV, IRR, payback, breakeven
• Royalty, tax and production-sharing terms
• Monte Carlo economics
• Emissions cost