Corrosion can cause serious metal deterioration and equipment failure in the oil and gas industry and poses a safety hazard. It occurs in presence of an aqueous solution and acidic media when conditions permit. The application of metal protection is one of the most industrially economical methods of controlling metallic corrosion in an acidic environment.
Herein, a silane-modified nanoparticle corrosion inhibitor has been successfully synthesized and characterized by different analysis methods. Silica nanoparticles were fabricated by organosilane composite with carboxylic groups(-COOH) as a terminal group to yield a long polymeric chain attached to the surface of the silica nanoparticle, which can work as an effective corrosion inhibitor.
Fourier Transform Infrared Spectroscopy (FTIR) was used to confirm the functional groups present in the prepared inhibitor. Besides, the material surface morphology and adsorbed layer were characterized by scanning electron microscopy (SEM). The anticorrosive behavior of the prepared materials was examined by gravimetric weight loss in different media (organic and inorganic acidic and concentrated salty media), i.e., 15% HCl, 15% Acetic acid, and 15% MSA.
Experimental results revealed that the obtained polymeric inhibitor can be adsorbed on the metal surface via electrostatic attraction/physical mechanism. Furthermore, the adsorbed film on the steel surface could act as a protective layer to protect the stainless-steel surface from corrosion parameters. Thus, increasing the corrosion inhibition efficiency.
Acidizing process is generally performed on wells to maximize their initial productivity and on aging wells to restore productivity and maximize the recovery of the energy resources. The process involves pumping acid into a wellbore or geologic formation that is capable of producing oil and/or gas. Well acidizing is accomplished by pumping acid into the well to dissolve limestone, dolomite and calcite cement between the sediment grains of the reservoir rocks. The advantages of the well acidizing include (i) increasing the production rates by creating channels into the rock through which the oil and gas can flow into the reservoir, and (ii) helping dissolve any loose debris found in the well.
