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All Journal JOURNAL OF EARTH ENERGY ENGINEERING
Tomi Erfando
Department of Petroleum Engineering, Universitas Islam Riau, Indonesia
Earth & Planetary Sciences Energy Engineering Materials Science & Nanotechnology

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Spontaneous Imbibition Test of Low Salinity Injection at Low Saline Waxy Crude Carbonate Fiki Hidayat; Tomi Erfando; Borry Frima Maulana
Journal of Earth Energy Engineering Vol. 7 No. 2 (2018): OCTOBER
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (671.476 KB) | DOI: 10.25299/jeee.2018.vol7(2).2215

Abstract

Low salinity waterflooding (LSW) is categorized as one of emerging EOR technologies. It is done by injecting water with different salt composition and/or concentration. The research has been carried out for both sandstone and carbonate with the results looks promising. However, most of this research still concentrated in the north sea, middle east and North America region. This article discusses the applicability of low salinity waterflooding methodology in Indonesia. Spontaneous imbibition test is carried out to observe the recovery gain from a various combination of concentration and composition of the injected brine. The change of pH of the brine is also examined in order to confirm the pH effect mechanism. Three different concentration of brine (500 ppm, 5.000 ppm, and 10.000 ppm), three different brine composition (NaCl, CaCl2, and MgCl2) and high paraffinic crude oil are used as the fluid sample. It is found that the increased oil recovery is significant at a salinity of 10,000 ppm for MgCl2 and 5,000 ppm for NaCl ions. While the lowest recovery was shown by the test at a salinity of 500 ppm
The Prospect of Electrical Enhanced Oil Recovery for Heavy Oil: A Review Muhammad Khairul Afdhol; Tomi Erfando; Fiki Hidayat; Muhammad Yudatama Hasibuan; Shania Regina
Journal of Earth Energy Engineering Vol. 8 No. 2 (2019): OCTOBER
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (950.709 KB) | DOI: 10.25299/jeee.2019.4874

Abstract

This paper presents a review of electrical heating for the recovery of heavy oil which the work adopts methods used in the past and the prospects for crude oil recovery in the future. Heavy oil is one of the crude oils with API more than 22 which has the potential to overcome the current light oil crisis. However, high viscosity and density are challenges in heavy oil recovery. The method is often used to overcome these challenges by using thermal injection methods, but this method results in economic and environmental issues. The electrical heating method could be a solution to replace conventional thermal methods in which the methodology of electrical heating is to transfer heat into the reservoir due to increasing oil mobility. Because the temperature rises, it could help to reduce oil viscosity, then heavy oil will flow easily. The applications of electrical heating have been adopted in this paper where the prospects of electrical heating are carried out to be useful as guidelines of electrical heating. The challenge of electrical heating is the excessive heat will damage the formation that must be addressed in the prospect of electrical heating which must meet energy efficiency. The use of Artificial intelligence becomes a new technology to overcome problems that are often found in conventional thermal methods where this method could avoid steam breakthrough and excessive heat. Therefore, it becomes more efficient and could reduce costs.
Co-Authors Borry Frima Maulana Fiki Hidayat Muhammad Khairul Afdhol Muhammad Yudatama Hasibuan Shania Regina