METHOD FOR INTRODUCTION OF SOLID PARTICLES INTO NATURAL POROUS MEDIUM

PCT No. PCT/FR90/00802 Sec. 371 Date Jun. 2, 1992 Sec. 102(e) Date Jun. 2, 1992 PCT Filed Jul. 9, 1990 PCT Pub. No. WO91/07570 PCT Pub. Date May 30, 1991.The invention relates to an improved method for injecting and transporting small particles in a natural porous medium. The method is characterized...

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Hauptverfasser:	PASKAL SHENEVER, MISHEL SARDEN, ZHAK-FILIPP DE FARSI DE MALNO, ANTID PYUTZ
Format:	Patent
Sprache:	eng
Schlagworte:	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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Zusammenfassung:	PCT No. PCT/FR90/00802 Sec. 371 Date Jun. 2, 1992 Sec. 102(e) Date Jun. 2, 1992 PCT Filed Jul. 9, 1990 PCT Pub. No. WO91/07570 PCT Pub. Date May 30, 1991.The invention relates to an improved method for injecting and transporting small particles in a natural porous medium. The method is characterized in that, in a first step, the porous medium is conditioned by means of an aqueous solution containing a hydrocarbonaceous compound, polymers or surface-active agents, in a second step, a plug of suspended particles is injected in the aqueous medium containing at least one hydrocarbonaceous compound, polymer or surface-active agent and, in a third step, the plug of particles is pushed by an appropriate aqueous medium. The method is particularly useful for implantation of bacteria in a porous medium.