1
Tehran Faculty of Petroleum, Petroleum University of Technology, Tehran, Iran
2
Ahwaz Faculty of Petroleum, Petroleum University of Technology, Ahwaz, Iran
10.22050/ijogst.2026.534454.1746
Abstract
Matrix acidizing is one of the effective methods for carbonate reservoirs, aiming to reduce formation damage, enhance well production, and improve hydrocarbon recovery. Although numerous studies have examined acid fluid types and their interaction with reservoir rock, few have combined technical matrix acidizing with economic evaluation for Iranian reservoirs. This study addresses that gap by integrating a simulation-based technical and economic comparison of two acid types — 15% hydrochloric acid (HCL) and emulsified acid (SXE 15%) — in a carbonate reservoir well in Khuzestan province, Iran. The outcomes of these two scenarios, in terms of production rate, acid penetration, and wormhole creation, were modeled using WellBook software under identical conditions. Technical results indicated that emulsified acid achieved deeper wormhole penetration (approximately 5 ft versus 2.5 ft for HCL), greater skin factor reduction (from +7 to –2.85 versus +0.31 for HCL), and higher production increase (from 0.44 to 1.13 bbl/min versus 0.75 bbl/min). Subsequently, the scenarios were evaluated economically based on two procurement methods, i.e., domestic supply in Iranian Rials and import supply in US Dollars. The economic analysis was conducted using key financial indicators such as NPV, IRR, MIRR, and PI. The technical and economic analyses demonstrated that emulsified acid outperforms HCL 15% acid in terms of production rate, wormhole penetration, and overall economic performance.
Rostami,M , Najafinezhad,G and Soltani Soulgani,B . (2024). Techno-Economic Evaluation of Simulated Matrix Acidizing Methods for Enhancing Well Productivity of Carbonate Reservoirs in Iran. (e252639). Iranian Journal of Oil and Gas Science and Technology, 13(2), e252639 doi: 10.22050/ijogst.2026.534454.1746
MLA
Rostami,M , , Najafinezhad,G , and Soltani Soulgani,B . "Techno-Economic Evaluation of Simulated Matrix Acidizing Methods for Enhancing Well Productivity of Carbonate Reservoirs in Iran" .e252639 , Iranian Journal of Oil and Gas Science and Technology, 13, 2, 2024, e252639. doi: 10.22050/ijogst.2026.534454.1746
HARVARD
Rostami M, Najafinezhad G, Soltani Soulgani B. (2024). 'Techno-Economic Evaluation of Simulated Matrix Acidizing Methods for Enhancing Well Productivity of Carbonate Reservoirs in Iran', Iranian Journal of Oil and Gas Science and Technology, 13(2), e252639. doi: 10.22050/ijogst.2026.534454.1746
CHICAGO
M Rostami, G Najafinezhad and B Soltani Soulgani, "Techno-Economic Evaluation of Simulated Matrix Acidizing Methods for Enhancing Well Productivity of Carbonate Reservoirs in Iran," Iranian Journal of Oil and Gas Science and Technology, 13 2 (2024): e252639, doi: 10.22050/ijogst.2026.534454.1746
VANCOUVER
Rostami M, Najafinezhad G, Soltani Soulgani B. Techno-Economic Evaluation of Simulated Matrix Acidizing Methods for Enhancing Well Productivity of Carbonate Reservoirs in Iran. IJOGST. 2024;13(2):e252639. doi: 10.22050/ijogst.2026.534454.1746
