Developing an Optimal Matrix Treatment Strategy for the Haoud Berkaoui Oil Fields

Abstract

Matrix acidizing is a key method used to remove such damage and restore reservoir productivity. This study analyzes acidizing operations conducted on five wells in the Benkahla (BKH) field, the primary objective of identifying the most effective and compatible acid system for the reservoir. The second objective is to optimize acid volume calculations using a dual approach: BJSP software, which incorporates porosity and perforation interval, and guideline tables based on permeability and temperature. Historical well data were reviewed, formation damage was identified through field indicators, and PLT and well test results were interpreted to estimate the skin factor and evaluate well performance. Comparing production before and after acidizing revealed significant improvements in most wells. Among the tested systems, AS1 (6% HCl – 1.5% HF) proved the most effective, enhancing permeability while minimizing risks of precipitation and emulsion. In contrast, AS2 and AS3 showed weaker performance. The study validates previous findings, confirming AS1’s compatibility with the reservoir. this integrated strategy merging field data, and software modeling provides a technically sound and economically optimized solution for enhancing acidizing effectiveness and maximizing production in the HBK region.