Difference between revisions of "Gilbert choke equation"
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| + | |last1= Economides |first1=M.J. | ||
| + | |last2= Hill |first2=A.D. | ||
| + | |last3= Economides |first3=C.E. | ||
| + | |last4= Zhu |first4=D. | ||
| + | |title=Petroleum Production Systems | ||
| + | |edition=2 | ||
| + | |date=2013 | ||
| + | |publisher=Prentice Hall | ||
| + | |place=Westford, Massachusetts | ||
| + | |isbn=978-0-13-703158-0 | ||
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Revision as of 19:03, 8 November 2024
Contents
Brief
The most common formula used for multiphase flow through surface chokes by Gilbert [1].
Gilbert developed his empirical equation from field data in California[2].
Math and Physics
Note that the equation is independent of the downstream pressure and assumes that the downstream pressure is less than 70% of the upstream pressure, i.e. the flow is "critical" i.e. fluid reach sonic velocity in the throat of the choke.
Example
Given data
Oil rate = 600 bbl/d, GLR=400 scf/bbl, D=22/64 in, Line pressure = 180 psia
Calculate the well head pressure?
Solution
Validity check 180/474.7=0.38 < 0.7 OK
Nomenclature
= choke beam diametr, 64th of an inch
= gas liquid ratio, Mscf/bbl or 10^3 scf/bbl
= well head pressure, psig
= liquid flow rate, bbl/d
References
Cite error: <ref> tag with name "Economides" defined in <references> is not used in prior text.
