Importance

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Abstract

The deposition of organic materials originating from crude oil, such as asphaltenes and paraffins, is deemed to compromise satisfactory oil exploration and production, because it clogs pores and equipment, compromising the operation performance. This problem may arise at various points during the operations of drilling, stimulating, fracturing, completing and cementing wells, production, transportation, refining and storage of oil and derivatives, including the use of the fluid in treatments for oil wells and reservoirs, well tubing and annuli, tubing, equipment, and tanks used in treatment processes, transportation and refining of oil and derivatives thereof. The present invention relates to a solvent composition to solubilize such deposits and incrustations. The solvents used in the present invention have a high capacity to solubilize the molecules of asphaltenes and paraffins, forming sufficiently fluid and stable solutions, which allow the use of this composition for the removal of organic deposits in the oil industry. Due to its good performance in the solubilization of deposits and incrustations and, especially, due to the biodegradable nature and superior toxicological profile, the alternatives described in the present invention can replace compositions containing benzene, toluene, ethylbenzene, and xylene (products commonly denoted as “BTEX”), diesel, kerosene, or other solvents and complex formulations used in the oil industry.

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First Claim