pvt_gas: Create a matrix of PVT properties for dry- and wet-gas...

In Rpvt: Estimate the PVT Properties of Reservoir Fluids

Description

The pvt_gas() generates a table of gas PVT properties at reservoir temperature and pressures from the atmospheric condition up to the initial reservoir pressure. The estimated properties are compressibility factor, formation volume factor, density, compressibility, viscosity, and pseudo-pressure.

Usage

pvt_gas(
  input_unit = "Field",
  output_unit = "Field",
  fluid = "wet_gas",
  pvt_model = "DAK",
  visc_model = "Sutton",
  t = 300,
  p = 5000,
  gas_spgr = 0.69,
  nhc_composition = c(0, 0, 0),
  cgr = 3,
  cond_api = 42,
  warning = "yes"
)

Arguments

input_unit	input unit system for parameters, a character string either 'SI' or 'Field'
output_unit	output unit system for properties, a character string either 'SI' or 'Field'
fluid	fluid type, a character string either 'dry_gas' or 'wet_gas'
pvt_model	PVT model, the character string 'DAK'
visc_model	viscosity model, the character string 'Sutton'
t	temperature, a numeric value either in 'C' or 'F' depending on the 'input_unit'
p	pressure, a numeric value either in 'kPag' or 'Psig' depending on the 'input_unit'
gas_spgr	gas specific gravity (Air = 1.0)
nhc_composition	a vector of mole fractions for nitrogen, hydrogen sulfide, and carbon dioxide, respectively
cgr	condensate to gas ratio, a numeric value in 'm3/m3' or 'STB/MMSCF' depending on the 'input_unit'
cond_api	condensate API
warning	a charater string either 'yes' or 'no'

References

\insertRef

Sutton2007Rpvt

\insertRef

Wichert1972Rpvt

Examples

pvt_gas_results_1 <- pvt_gas(input_unit = "Field", output_unit = "Field",
fluid = "dry_gas", pvt_model = "DAK", visc_model = "Sutton",
t = 400, p = 20000, gas_spgr = 0.65, nhc_composition = c(0.05,0.02,0.04),
cgr = 0.0, cond_api = NULL, warning = "yes")

head(pvt_gas_results_1)

pvt_gas_results_2 <- pvt_gas(input_unit = "Field", output_unit = "Field",
fluid = "wet_gas", pvt_model = "DAK", visc_model = "Sutton",
t = 300, p = 20000, gas_spgr = 0.75, nhc_composition = c(0.02,0.05,0.08),
cgr = 10.0, cond_api = 42.4, warning = "yes")

head(pvt_gas_results_2)

Rpvt documentation built on July 8, 2020, 7:34 p.m.