المجلة الدولية للعلوم والتقنية

Well stimulation is used to increase oil and gas productivity. Acidizing method is used to treat well damage based on proper rock type.In this study, acidizing method is applied in Abu- Attifel field formation to minimize the damage and remove scale in rock matrix. Due to the nature of rock type, sandstone formation is a major rock matrix existed in Abu- Attifel reservoir. Hydrochloric acid is the proper acid used to treat sandstone formation damage.The criteria that used to determine the treatment of well damage is the measurement of flow rate, bottom hole flowing pressure (Pwf ), and water content before and after treatment. Gas oil ratio was estimated based on measured properties before and after treatment. The results suggest that the flow rate after treatment increased and improved, the bottom hole flowing pressure ( Pwf) is increased also after treatment , the water content is decreased after treatment.