FLUID COMPOSITION FOR SOLUBILIZING DEPOSITS AND INCRUSTATIONS, AND USE OF THE COMPOSITION

摘要

The deposition of organic materials originating from crude petroleum, such as asphaltenes and paraffins, is deemed to compromise satisfactory exploration and production of petroleum since it obstructs wellbores and equipment, resulting in lower operational performance. This problem may arise at various points in the course of the operations of drilling, stimulating, fracturing, completing and cementing wells, production, transportation, refining and storage of petroleum and derivatives, including the use of the fluid in treatments for petroleum wells and reservoirs, well tubing and annuli, tubing, equipment and tanks used in treatment processes, transportation and refining of petroleum and derivatives thereof. The present invention relates to a composition of solvents for solubilizing such deposits and incrustations. The solvents used in the present invention have a high capacity to solubilize the molecules of asphaltenes and paraffins, forming solutions that are sufficiently fluid and stable and allow the use of this composition for the removal of organic deposits in the petroleum industry. Owing to the good performance thereof in the solubilization of deposits and incrustations and, primarily, the biodegradable nature and superior toxicological profile, the alternatives described in the present invention are capable of replacing compositions containing benzene, toluene, ethylbenzene and xylene (products commonly denoted "BTEX"), diesel, kerosene, or other solvents and complex formulations used in the petroleum industry.