#TITLE_ALTERNATIVE#

• Main Author: NUR’AENI (NIM : 10510029)
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23559
• Institution: Institut Teknologi Bandung

Indonesia's oil production has declined due to the increasing number of older wells. Based on the data from the Ministry of Energy and Mineral Resources, Indonesia has 13,824 old wells which have high effect on water coning. Water shut- off (WSO) is the process of closing the pores of the rock with the help of particular polymer injection to minimize the effects of water coning. Polymer which proposed in this study is polyvinyl alcohol which is reacted with a crosslinking agent. Generally, crosslinking agent used in the process WSO is the metal chromium (III). However, chromium is included into the kind of heavy metal that can pollute environment. The crosslinking agent proposed in this study is from the class of organic compounds, named glutaraldehyde. Formed polymer gel was then characterized using infrared spectroscopy, and resulting peak area wavenumber 1,206.072 cm-1 and had a viscosity of 31.79 cP. Value of porosity and permeability of the core is reduced from 22.9 to 11.52% and 255 be 85.98 mD. In addition, the gelation time of the polymer was depended on several parameters such as polymer concentration, salinity, crosslinking agent concentration, and temperature. Hopefully this WSO process can increase oil production in Indonesia <br /> <br /> <br /> without environmental degradation effect added. <br /> <br /> <br /> Keywords: EOR, water shut-off, polyvinyl alcohol, crosslinking agent, gelation time, crosslinking reaction, core.