An Application of Epoxy-Based Polymer Using Xylene as Solvent for Water Shut- Off BACHELOR THESIS Vincent Livanrio 12215045 Submitted as partial fulfillment of the requirements for the degree of BACHELOR OF SCIENCE in Petroleum Engineering study program PETROLEUM ENGINEERING STUDY PROGRAM FACULTY OF MINING AND PETROLEUM ENGINEERING INSTITUT TEKNOLOGI BANDUNG 2019 1 An Application of Epoxy-Based Polymer Using Xylene as Solvent for Water Shut-Off Vincent Livanrio* and Ardhi Hakim Lumban Gaol** Copyright 2019, Institut Teknologi Bandung Abstract In the oil and gas industry, the fluids that are produced into the surface are gas, oil and water. Although the fluids that are desired in production activities are oil and gas, water production is unavoidable. During the production activities, the water produced will continually increase which leads to excessive produced water. Excessive water production leads to not only additional operations but also additional costs. In order to reduce the excessive produced water, this paper is aimed to study the applicability of epoxy-based polymer using xylene as a solvent, and core-flood experiment as an experiment for water shut-off application. The epoxy-based polymer that is used in this study is synthesized in various concentration of reagents such as epoxy, hardener, and xylene. The concentration of each reagent is measured in % (v/v). The polymer is characterized by using bottle test experiments to know the gelation behavior over time. The result of the bottle test experiment is qualitative and is classified using Sydansk code where the codes vary from A to I with respect to the gelation behavior. The characterization that is resulted from knowing the gelation behavior shows the duration that is needed for the viscosity profile to change dramatically. The core-flood experiment is done by using artificial cores and the polymers that have the longest gelation time. The result of injecting the polymers to the artificial cores lead to the reduction up to 57.98% of porosity, up to 99.17% of permeability and up to 98.83% of injectivity which means that the polymer has the potential to be applicable in reducing the excessive water production. Keywords: Epoxy, Gelation, Syndansk Code, Water Shut-Off, Xylene Sari Pada industri minyak dan gas, fluida yang diproduksi ke permukaan adalah air, minyak, dan gas. Walaupun fluida yang paling diminati dalam kegiatan produksi adalah minyak dan gas, produksi air tidak dapat dihindari. Selama kegiatan produksi berlangsung, air yang diproduksi akan terus bertambah dimana hal ini akan menyebabkan terjadinya produksi air yang berlebihan. Produksi air yang berlebihan dapat menyebabkan dibutuhkannya operasi serta biaya tambahan. Untuk mengurangi produksi air yang berlebihan, paper ini bertujuan untuk mempelajari pengaplikasian dari polimer berbasis epoxy dengan menggunakan xylene sebagai pelarut, dan melakukan percobaan core-flood sebagai pecobaan dari aplikasi water shut-off. Polimer berbasis epoxy yang digunakan pada studi ini disintesis dalam berbagai konsentrasi reagen seperti epoxy, pengeras, dan xylene. Konsentrasi dari setiap reagen ini diukur dalam % (v/v). Polimer ini dikarakterisasi menggunakan percobaan bottle test untuk mengetahui sifat gelasi terhadap waktu.