SENSITIVITY STUDY ON ACID PROPERTIES AND RESERVOIR PERMEABILITY FOR ACIDIZING OPERATION AT CARBONATE RESERVOIR
Decreasing well productivity is the issue of importance in the petroleum industry. One of the causes of this issue is formation damage represented by the skin effect. Fluid conductivity around the wellbore may significantly depressed because of the reduced initial permeability. Acidizing operatio...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/40083 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Decreasing well productivity is the issue of importance in the petroleum industry. One of the causes
of this issue is formation damage represented by the skin effect. Fluid conductivity around the
wellbore may significantly depressed because of the reduced initial permeability. Acidizing
operation is one of the methods of reservoir stimulation to increase reservoir productivity. This study
determines the optimum acidizing design by doing a sensitivity test. The optimum acidizing is
happened when the skin value around the well is zero. If the skin value around the well is more than
zero then the acidizing operation will be suboptimum. The suboptimum acidizing operation makes
the well unable to achieve maximum production. The sensitivity test is done by evaluating the acid
type, acid concentration, and reservoir permeability at the acidizing operation. The result of the
sensitivity study shows that the strong type of acid with a higher concentration is the optimum type
of acid for acidizing operation. The result also shows that the higher difference value of the initial
reservoir permeability to the skin permeability, the higher acid volume and injection rate |
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