Difference between revisions of "Farshad Oil Compressibility correlation"

Latest revision as of 11:03, 29 September 2020

Farshad correlation is an empirical correlation for the oil compressibility published in 1996^[1].

A1 = 0.1982
A2 = 0.6685
A3 = –0.21435
A4 = 1.0116
A5 = -0.1616
A6 = –5.4531
A7 = 5.03 * 1e-4
A8 = 3.5 * 1e-8

C_o = 10^{A6 + A7 \times X - A8 \times X^2}

where:

X = R^{A1}_s \times T^{A2} \times SG^{A3}_g \times Y^{A4}_{oil_API} \times P^{A5}

A_1..A_{8}

= coefficients

C_o

= oil compressibility, psia^-1

P

= pressure, psia

R_s

= solution oil gas ratio, scf/bbl

SG_g

= gas specific gravity, dimensionless

T

= temperature, °F

Y_{oil_API}

= oil API gravity, °API

↑ Frashad, F.; LeBlanc, J.L.; Garber, J.D. (1996). "Empirical PVT Correlations For Colombian Crude Oils". SPE Latin America/Caribbean Petroleum Engineering Conference, 23-26 April, Port-of-Spain, Trinidad. Society of Petroleum Engineers (SPE-36105-MS).

@@ Line 1: / Line 1: @@
 __TOC__
-=== Brief ===
+== Farshad oil compressibility correlation ==
 [[Farshad correlation]] is an empirical correlation for the oil compressibility published in '''1996'''<ref name= Farshad/>.
-=== Math & Physics ===
+== Math & Physics ==
 A1 = 0.1982<br/>
 A2 = 0.6685<br/>
@@ Line 22: / Line 22: @@
 === Discussion  ===
 === Application range ===
-=== Nomenclature ===
+== Nomenclature ==
 :<math> A_1..A_{8} </math> = coefficients
 :<math>C_o </math> = oil compressibility, psia<sup>-1</sup>
 :<math> P </math> = pressure, psia
-:<math> R_s </math> =  oil gas ration, m3/m3
+:<math> R_s </math> =  solution oil gas ratio, scf/bbl
 :<math> SG_g </math> = gas specific gravity, dimensionless
-:<math> T </math> = temperature, °R
+:<math> T </math> = temperature, °F
-:<math> Y_{oil_API} </math> = oil API gravity, dimensionless
+:<math> Y_{oil_API} </math> = oil API gravity, °API
-=== References ===
+== References ==
 <references>