Article ID Journal Published Year Pages File Type
1758138 Journal of Natural Gas Science and Engineering 2012 6 Pages PDF
Abstract

Choke valves are critical elements in gas production facilities. Malfunction or failure of a choke valve can seriously affect safety, the environment and production rates. Choke is a device installed at wellhead or down hole to control the flow rate for maintaining sufficient back pressure to prevent formation damage, to prevent water/gas coning, to stabilize the flow rate and to produce the reservoir at the most efficient possible rate. In this work a simple-to-use method is developed to estimate the choke flow coefficient for natural gas subsonic flow through orifice-type chokes as a function of Reynolds number and the ratio of choke diameter to pipe diameter. The results can be used in follow-up calculations for rapid estimating gas passage through a choke under subsonic flow conditions. Estimations are found to be in excellent agreement with reported data in the literature with average absolute deviation being less than 0.4%.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (269 K)Download as PowerPoint slideHighlights► Rapid estimation of choke flow coefficient for natural gas subsonic flow through orifice-type chokes. ► Development of a simple-to-use mathematical predictive tool. ► Presenting a case study for the benefit of engineers to demonstrate clearly the usefulness of new proposed tool.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Earth and Planetary Sciences (General)
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