#TITLE_ALTERNATIVE#

• Main Author: RASYAD HANIEF (NIM : 12211021), ISNA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28164
• Institution: Institut Teknologi Bandung

In recent years, oilfield technologies have advanced rapidly especially in drilling multilaterals from a single parent wellbore. Horizontal wells have been applied all over the world because of their high productivity. However, the well performance of these wells has not been well-defined yet. Vogel Equation was originally developed for conventional vertical wells and may not be valid for multilateral wells. The demand of oil which shows increasing number all over years made predicting the well performance is very necessary. <br /> <br /> This study is intended to determine well performance in some types of multilateral wells and also create a generalized dimensionless IPR equation for each type of well. This study is done by using CMG (Computer Modelling Group) Simulator. The performance of well is determined by running hundreds of simulations to see how well a well reacts with the change of either flowing bottom-hole pressure or production rate so that IPR equations for dimensionless figure can be generalized by combining all results from each case of well types. <br /> <br /> The method used in this study is based on a work by Bendakhlia and Aziz which said that the constant pressure runs give better IPR curve than the constant production rate. Therefore, the well is constrained by a constant flowing bottom-hole pressure and the production rate is observed. The data used to construct IPR curve are taken after the well has reached pseudo-steady-state condition, in which is observed just slightly after the production has begun. Some of bottom-hole pressures are specified then run with CMG simulator, the resulted production rate is then recorded for the given bottom-hole pressure and an IPR curve for that case is constructed. Runs are also performed with the initial reservoir pressure equal to the bubble point pressure, from which the resulted equation only works for the two-phase reservoir condition.