Gilbert choke equation - Revision history

MishaT: /* Brief */

2024-11-08T16:10:31Z

‎Brief

2024-11-08T16:10:04Z

‎Brief

2024-11-08T16:07:50Z

‎Brief

2024-11-08T16:05:44Z

2024-11-08T16:03:46Z

2024-11-08T16:03:34Z

‎References

2024-11-08T16:02:34Z

‎Nomenclature

2024-11-08T16:02:10Z

‎Math and Physics

2024-11-08T16:01:03Z

‎Example

2024-11-08T16:00:17Z

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 __TOC__
 ==Brief==
-The most common formula used for multiphase flow through surface chokes developed by '''Gilbert''' <ref name=Gilbert/>.
+The most common formula used for multiphase flow through surface chokes developed by '''Gilbert''' in 1954<ref name=Gilbert/>.
 Gilbert developed his empirical equation from field data in California<ref name=KermitBrown1984/>.

@@ Line 2: / Line 2: @@
 __TOC__
 ==Brief==
-The most common formula used for multiphase flow through surface chokes developed by Gilbert <ref name=Gilbert/>.
+The most common formula used for multiphase flow through surface chokes developed by '''Gilbert''' <ref name=Gilbert/>.
 Gilbert developed his empirical equation from field data in California<ref name=KermitBrown1984/>.

@@ Line 2: / Line 2: @@
 __TOC__
 ==Brief==
-The most common formula used for multiphase flow through surface chokes by Gilbert <ref name=Gilbert/>.
+The most common formula used for multiphase flow through surface chokes developed by Gilbert <ref name=Gilbert/>.
 Gilbert developed his empirical equation from field data in California<ref name=KermitBrown1984/>.

← Older revision		Revision as of 16:05, 8 November 2024
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		+	<div style='text-align: right;'>By Mikhail Tuzovskiy on {{REVISIONTIMESTAMP}}</div>
	__TOC__		__TOC__
	==Brief==		==Brief==

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 :<math>P_{wh}=\frac{435 \times GLR^{0.546}}{D^{1.89}} \times q</math>
-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.
+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<ref name=Economides/>.
 ==Example==

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   |place=Tulsa, Oklahoma
 }}</ref>
+<ref name=Economides>{{cite book
 </references>

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 :<math>GLR</math> = gas liquid ratio, Mscf/bbl or 10^3 scf/bbl
 :<math>P_{wh}</math> = well head pressure, psig
-:<math>q</math> = flow rate, bbl/d
+:<math>q</math> = liquid flow rate, bbl/d
 == References ==

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 :<math>P_{wh}=\frac{435 \times 0.4^{0.546}}{22^{1.89}} \times 600 = 460 psig = 460 +14.7 = 474.7 psia</math>
-Validity check 180/460=0.4 < 0.7 OK
+Validity check 180/474.7=0.38 < 0.7 OK
 ==Nomenclature==

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 __TOC__
 ==Brief==
-The most common formula used for multiphase flow through surface chokes by Gilbert <ref name=Gilbert/><ref name=KermitBrown1984/>.
+The most common formula used for multiphase flow through surface chokes by Gilbert <ref name=Gilbert/>.
-Gilbert developed his empirical equation from field data in California.
+Gilbert developed his empirical equation from field data in California<ref name=KermitBrown1984/>.
 ==Math and Physics==