Open AccessMatrix Acidizing Of Yamama Pay Zones
Author(s) -
Ali M. Al-mashat,
Kareem A. Alwan
Publication year - 2021
Publication title -
mağallaẗ al-buḥūṯ wa-al-dirāsāt al-nafṭiyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2710-1096
pISSN - 2220-5381
DOI - 10.52716/jprs.v2i2.33
Subject(s) - matrix (chemical analysis) , perforation , porosity , core (optical fiber) , chemistry , chemical engineering , petroleum engineering , mineralogy , materials science , geology , chromatography , composite material , engineering , punching
Yamama formation in southern of Iraq has been studied well, and 25 core samples have been chosen from 7 wells to study their responses to matrix acidizing experiments by different acid solutions. It is found that:1. Solutions of 5% HCl as preflushes and afterflushes are needed in volume depended on cores porosity.2. A solution of 15% HCl with its additives [0.6% A-250 and 0.75% of the solution of Iraqi detergent powder] was the suitable solution for the stimulation of these cores.Previous acid treatments were analyzed and the following techniques were suggested to get the best results:1. Using paccaloni planning- evaluation method to get the best quality control.2. Placing the acid in front – of the perforation interval.3. After completion of acid injection, an immediate opening to flow is necessary.4. Adequate cleaning period would be important after acid job.