Difference between revisions of "Farshad Oil Compressibility correlation"

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(Created page with "__TOC__ === Brief === === Math & Physics === A1 = 0.1982<br/> A2 = 0.6685<br/> A3 = –0.21435<br/> A4 = 1.0116<br/> A5 = 0.1616<br/> A6 = –5.4531<br/> A7 = –5.03 * 1e-4...")
 
m (MishaT moved page Farshad correlation to Farshad Oil Compressibility correlation: better name)
 
(15 intermediate revisions by 2 users not shown)
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__TOC__
 
__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/>
 
A1 = 0.1982<br/>
 
A2 = 0.6685<br/>
 
A2 = 0.6685<br/>
 
A3 = –0.21435<br/>
 
A3 = –0.21435<br/>
 
A4 = 1.0116<br/>
 
A4 = 1.0116<br/>
−
A5 = 0.1616<br/>
+
A5 = -0.1616<br/>
 
A6 = –5.4531<br/>
 
A6 = –5.4531<br/>
−
A7 = –5.03 * 1e-4<br/>
+
A7 = 5.03 * 1e-4<br/>
 
A8 = 3.5 * 1e-8<br/>
 
A8 = 3.5 * 1e-8<br/>
  
−
:<math> C_o = 10^{A6 + A7 * X - A8 * X^2}</math><ref name= Farshad/>
+
:<math> C_o = 10^{A6 + A7 \times X - A8 \times X^2}</math>
  
 
where:
 
where:
  
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:<math>  X = R^{A1}_s * T^{A2} * SG^{A3}_g * Y^{A4}_{oil_API} * P^{A5}</math>
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:<math>  X = R^{A1}_s \times T^{A2} \times SG^{A3}_g \times Y^{A4}_{oil_API} \times P^{A5}</math>
  
 
=== Discussion  ===
 
=== Discussion  ===
 
=== Application range ===  
 
=== Application range ===  
−
=== Nomenclature ===
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== Nomenclature ==
 
:<math> A_1..A_{8} </math> = coefficients
 
:<math> A_1..A_{8} </math> = coefficients
 +
:<math>C_o </math> = oil compressibility, psia<sup>-1</sup>
 
:<math> P </math> = pressure, psia
 
:<math> P </math> = pressure, psia
 +
:<math> R_s </math> =  solution oil gas ratio, scf/bbl
 
:<math> SG_g </math> = gas specific gravity, dimensionless
 
:<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>
 
<references>
  
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[[Category:pengtools]]
 
[[Category:pengtools]]
 
[[Category:PVT]]
 
[[Category:PVT]]
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 +
{{#seo:
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|title=Farshad oil compressibility correlation
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|titlemode= replace
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|keywords=oil compressibility correlation
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|description=Farshad correlation is an empirical correlation for the oil compressibility published in 1996.
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}}

Latest revision as of 11:03, 29 September 2020

Farshad oil compressibility correlation

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

Math & Physics

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}

Discussion

Application range

Nomenclature

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

References

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