EP 1468304 A1 20041020 - NUCLEAR MAGNETIC RESONANCE METHOD OF DETECTING AND MONITORING THE FLOCCULATION KINETICS OF HEAVY FRACTIONS OF A COMPLEX FLUID
Title (en)
NUCLEAR MAGNETIC RESONANCE METHOD OF DETECTING AND MONITORING THE FLOCCULATION KINETICS OF HEAVY FRACTIONS OF A COMPLEX FLUID
Title (de)
VERFAHREN ZUM NACHWEIS UND ZUR VERFOLGUNG DER AUSFLOCKUNGSKINETIK DER SCHWEREN FRAKTIONEN EINER KOMPLEXEN FLÜSSIGKEIT MITTELS KERNSPINRESONANZ
Title (fr)
METHODE DE DETECTION ET DE SUIVI PAR RESONANCE MAGNETIQUE NUCLEAIRE DE LA CINETIQUE DE FLOCULATION DES FRACTIONS LOURDES D'UN FLUIDE COMPLEXE
Publication
Application
Priority
- FR 0300127 W 20030116
- FR 0200466 A 20020116
Abstract (en)
[origin: WO03060539A1] The invention relates to a nuclear magnetic resonance method of detecting and monitoring the flocculation kinetics of high molecular weight fractions of a complex fluid. The inventive method consists in applying the following to the fluid: a first static polarisation magnetic field and, subsequently, at least a second oscillating pulsed magnetic field which is intended to generate a nuclear magnetic resonance for the nuclei considered and the acquisition of relaxation signals from the nuclei in the fluid. Moreover, said method consists in: detecting, in the relaxation signals, a first part P1 which is representative of the relaxation of said flocculated fractions in the fluid and a second part P2 which is representative of the relaxation of the liquid fraction of the fluid; and determining the flocculation rate of said fractions by comparison with values M<sb>x</sb>(t = 0) and M<sb>x1</sb>(t = 0) which were extrapolated at the start of the acquisition times of said two parts. The invention is suitable, for example, for monitoring the flocculation kinetics of generally asphaltene polar fractions which are contained in the dissolved state and/or in the stable colloidal state in a liquid hydrocarbon fluid.
IPC 1-7
IPC 8 full level
G01R 33/44 (2006.01)
CPC (source: EP US)
G01R 33/44 (2013.01 - EP US); G01N 24/082 (2013.01 - EP US)
Citation (search report)
See references of WO 03060539A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03060539 A1 20030724; AU 2003216731 A1 20030730; CA 2472087 A1 20030724; EP 1468304 A1 20041020; FR 2834792 A1 20030718; FR 2834792 B1 20071005; US 2005083052 A1 20050421; US 7009393 B2 20060307
DOCDB simple family (application)
FR 0300127 W 20030116; AU 2003216731 A 20030116; CA 2472087 A 20030116; EP 03712250 A 20030116; FR 0200466 A 20020116; US 50152404 A 20040716