Petromium Tools / Formula set PVT-001

PVT Fluid Properties

Black-oil + gas correlations · pressure sensitivity · browser-only workspace · V2.0

Mode
Units
Stored only in this browser · tap any field unit for quick conversion

Current state and correlation response

Pressure sensitivity

Gas z factor versus pressure3.45 MPa(a)34.47 MPa(a)
Gas z · independently scaledGas viscosity · independently scaled
Oil properties versus pressure3.45 MPa(a)34.47 MPa(a)
Oil Rs · independently scaledOil Bo · independently scaledOil viscosity · independently scaled

Each property is independently scaled so trend direction remains legible. Exact values and units are retained in the Cases export sheet.

Correlation result · not a lab report

Current state

Pressure

3,000 psia

Oil state

undersaturated

Bubblepoint

2,463.01 psia

Gas z

0.85243

No fluid characterization, correlation selection, operating envelope, or reservoir decision is authorized by this worksheet.

Calculation mode

Declared workflow

Enter the current state, oil gravity, gas gravity, and bubblepoint solution GOR. The frozen correlation set and screening defaults remain visible but locked to the audited method set.

Absolute state and fluid descriptors

Basic inputs

Calculation complete

Calculation audit

0 warnings

Gas z

0.85243

Gas density

11.1374 lb/ft3

Gas Bg

0.0009157 rb/scf

Gas cg

0.000290528 1/psi

Gas viscosity

0.0218562 cP

Oil Rs

600 scf/STB

Oil Bo

1.337326

Oil density

44.209 lb/ft3

Oil viscosity

0.608758 cP

Ppr / Tpr

4.57 / 1.641

Calculation observations

STANDARD_Z_ASSUMED_UNITY

Gas FVF and stock-tank mass identities assume z=1.0 at the entered standard conditions.

CORRELATION_MODEL_ONLY

Correlation-based black-oil and gas screening only; laboratory PVT, compositional EOS, water, wax, asphaltene, and near-critical phase behavior are excluded.

Operational boundary: Correlation-based screening only. This worksheet does not replace laboratory PVT, compositional EOS regression, reservoir simulation, process simulation, or competent engineering review.

Named local cases

Browser snapshots

Save a snapshot to compare or restore an entered case on this device.

Current method status

Applicability map

DAK reduced range

Inside

Pseudocritical correction

sweet-gas

Pressure cases

25

Oil: California-oil Standing source envelope is screened explicitly; regional bias is not corrected.

Gas: DAK is not a compositional EOS and standard-condition z is declared as unity.

PVT-001 v1.0.0 · SPE PEH Vol. I · original-paper equation register Laboratory PVT remains authoritative Exact cases export independently of chart scaling