PREDICTION OF TEMPERATURE PROFILE OF INJECTED CHEMICAL ALONG THE TUBULAR

• Main Author: ZHI, KUEH JING
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2011
• Subjects: T Technology (General)
• Online Access: http://utpedia.utp.edu.my/8331/1/2011%20-%20prediction%20of%20temperature%20profile%20of%20injected%20chemical%20along%20the%20tubular.pdf; http://utpedia.utp.edu.my/8331/

During petroleum production, organic solid deposition will accumulate in the wellbore and along the tubing. Therefore, production will be reduced due to blockage of production path by organic solid deposition. To solve blockage of production path, high temperature chemical will be injected into wellbore to treat organic solid deposition. As surrounding temperature is lower, heat will be transferred from wellbore to surrounding. Hence, prediction of temperature profile of injected chemical is needed so that suitable amount and reliable thermophysical properties of chemical can be predicted. The objective of this project is to examine temperature drop of injected chemical. Microsoft Excel® 2007 together with Microsoft Visual Basic for Application (VBA) is used to predict temperature profile of injected chemical. Model developed by Hasan and Kabir will be utilized in this computer program. This project is divided into 2 parts. First part of project will predict heat transfer and temperature profile of injected chemical. Second part of project will examine sensitivity parameters of injected chemical. In this project, there are several assumptions made to simplify the program created. Simulation of temperature profile of injected chemical is shown in graph. Sensitivity parameters are identified so that sensitivity analysis can be conducted. Sensitivity parameters identified are injection rate, injection temperature and fluid density. The result of computer program implies that it is plausible to predict temperature profile of injected chemical based on computer program created. Computer program can be used on other type of injection fluid like water. Optimal chemical condition for organic solid deposition treatment will be high injection rate, high fluid density and suitable injection temperature.