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Matrix acidizing of yamama pay zones | ||
| Journal of Petroleum Research & Studies | ||
| Article 1, Volume 136, Issue 3, 2011, Pages 15-34 | ||
| Authors | ||
| ; ; Dr. Kareem Abdulhasan Alwan; Prof Dr. Ali M. Almashat | ||
| Abstract | ||
| 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. | ||
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