Basic understanding of water flooding as a secondary recovery concept: Literature review

The need for energy and mineral resources is needed for the survival of human life. One of the results of minerals contained in the bowels of the earth is crude oil. Natural resources crude oil is still a top priority for natural resource needs in Indonesia. So it is necessary to explore and exploit crude oil resources. Secondary recovery (water flooding) and tertiary recovery methods are carried out on an oil and gas well to assist the process of producing oil to the surface. Water flooding is a method that is widely used because water is easy to obtain, water supply is quite cheap and mobility is low. Water injection is a second stage recovery method by injecting water into the reservoir so that the remaining oil can be pushed to the production well. Water flooding in its application can show a decreasing trend in production if the efficiency of this method in the reservoir has decreased, therefore after the water flooding recovery method has decreased production, the EOR method as a tertiary recovery method can be applied.&nbsp

Interfacial tension test analysis as injection fluid on reservoir core

  In the petroleum industry, Enhanced Oil Recovery (EOR) technology has been developed to obtain increased oil recovery from reservoirs. One of the EOR methods is chemical EOR using a surfactant known as the surfactant flooding method. Surfactants have the ability to reduce the interfacial tension between oil and water in the rock matrix so that residual oil can be produced. There are several parameters that affect the performance of surfactants, among which will be discussed in this discussion, namely the middle phase emulsion obtained from the phase behavior test and the results from the Interfacial Tension (IFT) test. Based on the literature review, the method used in IFT uses the spinning drop method. Compatibility test of Fir wood SLS surfactant solution used with a concentration of 0.5% - 3% and a salinity of 4,000 - 110,000 ppm

www.globalsubsidies.org THE GLOBAL SUBSIDIES INITIATIVE FOSSIL FUELS – AT WHAT COST? GOVERNMENT SUPPORT FOR UPSTREAM OIL AND GAS ACTIVITIES IN INDONESIA

Government support for upstream oil and gas activities in Indonesi