METHOD FOR THE WELL-HEAD TREATMENT OF HEAVY AND EXTRA-HEAVY CRUDES IN ORDER TO IMPROVE THE TRANSPORT CONDITIONS THEREOF

The invention relates to a method for the dehydration of, and in-line removal of asphaltenes from, heavy and extra-heavy crudes. The method is performed at the well head at pressures of between 414 and 689 KPa and temperatures of between 60 and 100° C. and includes two phases, namely a dehydration p...

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Hauptverfasser:	AFANADOR LUZ EDELMIRA, RODRIGUEZ LILIA, GROSSO JORGE LUIS, PARRA MARTHA, VIDALES HUMBERTO, LEAL GONZALO, GUZMAN ERIKA, BARRERO RIGOBERTO, CUADRADO CLAUDIA ESNEIDEN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION PYROLIGNEOUS ACID RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	The invention relates to a method for the dehydration of, and in-line removal of asphaltenes from, heavy and extra-heavy crudes. The method is performed at the well head at pressures of between 414 and 689 KPa and temperatures of between 60 and 100° C. and includes two phases, namely a dehydration phase and a deasphalting phase. The first phase includes the addition of solvent, removal of free water, heating, addition of emulsion breakers and settling for removal of emulsified water. The asphaltenes are extracted in the second phase. Said phase comprises the use of low-force in-line static mixers and contactors having a specific design and a sedimentation device with specific internal arrangements for separation. The recovered solvent is recirculated into the method, the improved crude is separated and the asphaltenes are used as fuel for cogeneration which supplies the energy requirements for production and the improvement method.