V-Cone in wet gas measurement
V-Cone in wet gas measurement
(OP)
Have any of you used the V-cone in wet gas measurement? If you have, how did it perform? Any feedback you can provide would be appreciated.
Thanks!
Thanks!
Pamela K. Quillin, P.E.
Quillin Engineering, LLC





RE: V-Cone in wet gas measurement
The AGA-3 tube with a flow conditioner did a great job. The V-cones did the same job for a fraction of the cost. I'm a big fan of the V-cone.
Another client had V-cones on the wellhead and a decent AGA-3 tube at the compressor station. The average error was over 20%. Lots of people were bad mouthing V-cones. McCrometer's rep went to the wells and found: (1) in a natural gas field the guy setting the v-cones up had left the default gas analysis for air in the RTU; and (2) he chose orifice calculation instead of V-cone calculation (big difference in how you calculate β ratio). They put in the right gas analysis (SG 0.65 instead of 1.0) and the right calcs and now the sum of the wells is around 0.75% higher than the AGA-3 tube. Funny thing is that EVERYONE in the company had heard about the crappy v-cone measurement, but NO ONE has heard that it was operator error instead of equipment failure. I did a HAZOP on another system last month and two different people questioned my choice of V-Cones for the project. We finally had to pull current field data to show that the "problem" had been fixed.
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
RE: V-Cone in wet gas measurement
Pamela K. Quillin, P.E.
Quillin Engineering, LLC
RE: V-Cone in wet gas measurement
RE: V-Cone in wet gas measurement
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
RE: V-Cone in wet gas measurement
Pamela K. Quillin, P.E.
Quillin Engineering, LLC