METHOD FOR THE APPLICATION OF NANOFLUIDS TO IMPROVE OIL-PERMEABILITY IN FIELDS OF HEAVY AND EXTRA HEAVY CRUDE OIL, AND TO INHIBIT DAMAGE CAUSED BY ASPHALTENE-TYPE ORGANIC DEPOSITS IN FIELDS OF LIGHT AND INTERMEDIATE CRUDE OIL.

摘要

The invention relates to methods for the application of nanofluids to improve oil-permeability in fields of heavy and extra heavy crude oil, and to inhibit damage caused by asphaltene-type organic deposits, principally in fields of light and intermediate crude oil. In the fields of heavy and extra heavy crude oil, due to the nature of the oil, damage mechanisms are generated that affect the relative permeability curves, reducing the oil and generally boosting the mobility of water. The use of nanotechnology mitigates this effect and generates a protection mechanism on the rock in order to prevent the effect occurring quickly. In many of the fields of light and intermediate crude oil, organic deposition is the main damage factor, in others it occurs in combination with other mechanisms; nanotechnology is provided as an alternative for controlling the precipitation of asphaltenes and the subsequent deposition thereof on the rock. Being state-of-the-art applications, protection is claimed for the application methods developed.