Perm Polytechnic University scientists have found a way to minimize damage to carbonate formations during well jamming. Studies have shown that changing the mineralization of the silencing fluid or the use of nanoparticles reduces the dissolution of carbonate rocks, while maintaining the filtration and capacitance properties of the layers.
Silencing wells before repairs is necessary to prevent oil and gas emissions. However, standard liquids can cause the dissolution of carbonate minerals, which reduces the permeability of formations and reduces their productivity. PNRPU studies have proven that filtrates can disrupt the geochemical equilibrium between fluids and rocks, causing migration of small particles and deterioration of reservoir properties.
Changing the mineralization of the liquid or using nanoparticles will help prevent the destruction of rocks, providing safer and more efficient well repairs.