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Application of acid treatments in order to improve the characteristics of the rock collector

During the exploitation life of one tray, different influences cause damage to the rocks located in the borehole. Damaged rocks are characterized by the clogging of the hard space, which is manifested by reduced bandwidth, resulting in a decline in fluid production. In order to solve this problem, there are different stimulating methods that are successfully applied around the world. In Serbia, there is a practice that acid treatments are most commonly used when solving the problem of rock damage. These methods are based on the application of acid solutions of different composition, depending on the mineral composition of the rock collector. This paper describes the process of resolving the reduction of production of X-1 and X-2 wells, whose production intervals are represented by rocks with different carbonate content , and the problem-solving approach is different.