The effectiveness of fir wood lignosulphonate surfactant stability on intermediate oil as biomaterial engineering

• Main Authors: Tetelepta, Jevericov, Firdaus, Orlando, Setiati, Rini, Fathaddin, Muh. Taufiq, Rakhmanto, Pri Agung, Sumirat, Iwan
• Format: Conference Proceeding
• Language: English
• Subjects: Biocompatibility; Biomedical materials; Brines; Crude oil; Desiccators; Flooding tests; Production methods; Recovery; Reservoirs; Salinity; Stability tests; Surfactants; Vacuum pumps
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0226331

Indonesia is one of the countries with abundant oil reserve. To be able to produce the oil reserve, decent production methods with the ability to drain remaining oil reserve left in the reservoir is vital. One method that can be implemented is by using surfactant as injection fluid on the reservoir. The objective of this research is to acknowledge the mechanism and suitability of fir wood SLS surfactant on crude oil. This research is also fitted with core flooding test to measure the level of potential recovery factor. Method used in this research was a laboratory research method to test the characteristic and stability of surfactant solution on various concentration. The first test was by conducting aqueous stability to observe solution condition. A decent surfactant is the one that remains clear and does not experience murkiness during aqueous stability process. Surfactant solution sample was inserted into an oven and observed whether there is a change indicated in the surfactant. The next test is the surfactant stability test to acknowledge the suitability between surfactant and formation water from certain reservoir. One of the compatibility tests conducted is the surfactant stability test. Formation water salinity levels utilized in this research are varied between 5,000 ppm and 120,000 ppm, meanwhile the utilized surfactant concentration levels are 1% 1.5% and 2%. Surfactant stability test was conducted for 21 days on 60o Celsius temperature. As for the core flooding, there are a number of working stages namely brine saturation on the core utilized for core flooding. This stage is conducted after fulfilling surfactant compatibility test requirements. Brine saturation process were implemented by pouring brine solution with different levels of salinity. 200 ml of brine solution and core were poured into a chemical glass until they are covered with brine. After that, insert the solution into a desiccator to conduct saturation with vacuum pump for 2 days. After brine saturation, the next stage was to saturate the oil by using core holder. This oil saturation process was implemented by using 40 ml of intermediate oil. Core was saturated with crude oil by using syringe pump. The core saturated by brine and crude oil was injected with surfactant to obtain the measurement of producible oil. Based on this research, we noticed that the best fir wood lignosulphonate surfactant composition for injection process is the one with 100,000 ppm salinity and 1% surfact