A SIMPLE PROCEDURE FOR CALCULATING SHUT-IN TUBING PRESSURE (SITP)

Akpoturi Peters¹ and Nwakaudu Stanley²

¹ Department of Petroleum Engineering Delta State University, Abraka

²Department of Chemical Engineering, Federal University of Technology, Owerri

E-mail: petersakpoturi1212@gmail.com

ABSTRACT: Facilities and Drilling Engineering usually require the expected shut-in tubing pressure (SITP) for oil wells in order to size the wellhead equipment and for surface facilities design. Often times this information is not available and has to be estimated. A simple procedure for calculating the wellhead shut-in tubing pressure has been developed from basic physical laws using reservoir data such as reservoir  pressure, producing GOR, oil and gas gravities, production depth and reservoir temperature. Comparison of the predictions with actual measured field data validates the accuracy of t his simple procedure.