Abstract: Across the world, there are many wells which are having problem of formation damage and decline in permeability of reservoirs which results in fall of production and the demand of oil is rising day by day. Moreover, it is not economically permissible, so need to carry out stimulation treatment which can improve the production performance of wellbore.

The scales deposition occurs around the wellbore zone during various well operations (drilling, workover) that has a significant impact on well production. The removal of scale in the area of the wellbore, which bypasses the damage zone, is required to optimize well performance. Estimation of near wellbore damage zone parameters and scale deposition is one of the major challenges that affects stimulation efficiency.

We did an integrated study for multi-stage Matrix Acidizing in a directional well in a deep sandstone reservoir in the Dholka field of the Cambay basin, India. The technique, which takes into account the complexity of scale deposition and its alteration during acid stimulation, is described fully in this work.

In this paper, we depict the details of approach in step by step which considers during the matrix acidizing operations carrying for the removal of scales which formed by precipitation of organic and inorganic debris which are present in the crude oil.

| DOI: 10.17148/IARJSET.2022.9733