Petroleum proppant acidification and stratigraphic features closely

Before acidification, pollution prevention and treatment of formation response is a reasonable design goal. Although extremely easy to dissolve formation damage, but successful acidification means is not formed while dissolving pollution damage. It is possible, but must first figure out the chemical characteristics of the formation of minerals and construction of the fluid, to predict when the acid into the formation, acid is how reactions. Potential fracturing proppants incompatibility by logging and core units to evaluate the optimal prevention. Potential problems because the reaction can produce secondary contamination, prolonged exposure generated will be considered.
Select fluid formation is characterized by two key mineral composition and permeability. Formation determine mineralogical characteristics help determine what kind of system of acid and acid concentration used. Determining formation permeability, can estimate the amount of matrix acidizing holding injection and maximum bottomhole pressure and other information.
Mechanical pressure with pores, temperature and formation of the design impact. High pore pressure in the lower strata of more than the failure of the high density ceramic rupture. Failure formation than the original observations have lower rupture pressure. Selected reaction temperature and a different rate of mineral acid. At higher temperatures, usually choose a lower acid concentration. To maintain the mechanical integrity of the skeleton of the formation of bad cement reservoirs generally reduces the acid concentration.