THE APPLICATION OF POLYURETHANE RESIN TO RESOLVE SAND PROBLEM IN OIL RESERVOIR WITH UNCONSOLIDATION FORMATION

• Main Author: Ichsan Hakim, Muhammad
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/34524
• Institution: Institut Teknologi Bandung

Sand problem of petroleum reservoir has been a serious problem that can be solved by using resin. This problem excessively occurs to poorly-consolidated and unconsolidated rocks formation. Various polymers have been used as resins such as epoxy resin and polyurethane, which is one of the being-developed polymers and can be made from castor oil. Polyurethane resin can be obtained by reacting castor oil or risinoleat acid as a result of castor oil hydrolysis as polyol sources with monomer diisosianat (MDI), and adding water to trigger the crosslinked association, produce more rigid polyurethane. This polymerization was carried out in chloroform in the ratio, 25% polyol, 25% MDI, 2% water, and 48% chloroform. Polyurethane characterizations were conducted by using functional groups with FTIR (Fourier Transform Infrared Spectroscopy), swelling analysis, and thermal analysis with Thermal Gravimetric Analysis (TGA). Epoxy resin that is commercial resin in the ratio of 25% epoxy, 25% hardener (Triethylenetetramine), and 50% acetone, used as a resin comparison. These resins was then applied into the artificial unconsolidated cores derived from quartz sand with a size of 20-35 mesh at temperature of 700C to represent reservoir condition with unconsolidated rock formations. To determine the potential of the resin, the physical and mechanical properties of cores were analyzed by measuring permeability and compressive strength of cores. Based on the experimental results, reduction in permeability and the high compressive strength, was obtained by the injection of epoxy resin with curing time of 16 hours was obtained by the reduction in permeability of 12.14% and compressive strength 1790.35 psi. While the polyurethane resin of ricinoleic acid with curing time of 8 hours, was obtained reduction in permeability of 32.40% and very small increasing in compressive strength that is 42.06 psi. Polyurethane resin of castor oil resulted quite good results, in the curing time of 16 hours was obtained reduction in permeability of 6.85% and an increase compressive strength of 419.49 psi. Based on these results, polyurethane resins synthesized from ricinoleic acid is still viable as an alternative resin due to very small increase in compressive strength value, while the polyurethane resin synthesized from the castor oil is a potential alternative resins to resolve sand problem in petroleum reservoir, but it needs further optimization in order to compete with epoxy resin and other commercial resin.