Method for reducing retention of a displacement agent and application to assisted recovery of hydrocarbons

PCT No. PCT/FR92/00812 Sec. 371 Date Jun. 2, 1993 Sec. 102(e) Date Jun. 2, 1993 PCT Filed Aug. 21, 1992 PCT Pub. No. WO93/04266 PCT Pub. Date Mar. 4, 1993.A method for reducing retention of a polymer based displacement agent injected into a hydrocarbon containing rock matrix involves treating the ma...

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Bibliographic Details
Main Authors LECOURTIER; JACQUELINE, PLAZANET; VERONIQUE, PUTZ; ANTIDE, CHAUVETEAU; GUY
Format Patent
LanguageEnglish
Published 29.11.1994
Edition5
Subjects
ADHESIVES
CHEMISTRY
DYES
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MINING
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PAINTS
POLISHES
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Summary:PCT No. PCT/FR92/00812 Sec. 371 Date Jun. 2, 1993 Sec. 102(e) Date Jun. 2, 1993 PCT Filed Aug. 21, 1992 PCT Pub. No. WO93/04266 PCT Pub. Date Mar. 4, 1993.A method for reducing retention of a polymer based displacement agent injected into a hydrocarbon containing rock matrix involves treating the matrix with an adsorbent solution containing alkali metal phosphates after the rock matrix comprising clays has been stabilized by injection of a solution containing cations obtained from KCl or NaCL salts. The presence of the cations increases the effect of the adsorbent solution.
Bibliography:Application Number: US19930039413