Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.

Water rate (m3/s)

Water flow rate.

Oil rate (m3/s)

Oil flow rate.

Compute the water cut of a producing well as the water fraction of the total liquid flow. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Water cut

Water cut as a fraction of the liquid stream.

Water cut %

Water cut expressed in percent.

• Petroleum correlations are fluid-, pressure-, temperature-, and region-dependent. PVT sampling, phase behavior, relative permeability, capillary pressure, heterogeneity, aquifer support, well constraints, history match, and units affect forecasts and reserves.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.

• Atterberg Consistency Index Calculator

  Compute the consistency index CI = (LL - w) / PI from liquid limit and natural water content in percent and the plasticity index.

• Atterberg Plasticity Index Calculator

  Compute the plasticity index PI as liquid limit minus plastic limit, both in water-content percent.

• Buckley Leverett Front Saturation Calculator

  Find the Buckley-Leverett shock-front water saturation by the Welge tangent construction on a Corey fractional-flow curve.