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Del Gaudio
Lucilla Del Gaudio, San Donato Milanese (milan) IT
| Patent application number | Description | Published |
|---|---|---|
| 20100216670 | WATER-BASED FLUID FOR PREVENTING THE FORMATION OF W/O EMULSIONS OR FOR RESOLVING W/O EMULSIONS ALREADY FORMED IN POROUS MATRICES - The invention relates to a water-based fluid for applications in the oil field, comprising non-ionic surfactants, stable at temperatures ranging from 10 to 90° C., having an HLB ranging from 8 to 20 and soluble in water, with a saline content ranging from 0 to 60% by weight, and possibly salts. The fluid can be conveniently used as completion fluid for preventing the formation of inverse W/O emulsions or as a remedial fluid for resolving emulsions already formed in oil wells in which oil-based mud has been used. | 08-26-2010 |
Lucilla Del Gaudio, San Donato Milanese IT
| Patent application number | Description | Published |
|---|---|---|
| 20100120638 | ADDITIVES FOR OIL RECOVERY FROM RESERVOIRS - The invention relates to the use of quaternary polyamines having formula (I) for the recovery of oil from reservoirs formula (I), wherein n>=1 R | 05-13-2010 |
Lucilla Del Gaudio, Milano IT
| Patent application number | Description | Published |
|---|---|---|
| 20090118380 | PROCESS FOR THE PREPARATION OF WATER-IN-OIL AND OIL-IN-WATER NANOEMULSIONS - Process for the preparation of a water-in-oil or oil-in-water nanoemulsion wherein the dispersed phase is distributed in the dispersing phase in the form of droplets having a diameter ranging from 1 to 500 nm, comprising: 1) the preparation of a homogeneous water/oil blend (I) characterized by an interface tension lower than 1 mN/m, comprising water in an amount of 30 to 70% by weight, at least two surface-active agents having a different HLB, selected from non-ionic, anionic, polymeric surface-active agents, said surface-active agents being present in such a quantity as to make the blend homogeneous; 2) the dilution of the blend (I) in a dispersing phase consisting of oil or water with the addition of a surface-active agent, selected from non-ionic, anionic, polymeric surface-active agents, the quantity of the dispersing phase and surface-active agent being such as to obtain a nanoemulsion having a HLB different from that of the blend (I). | 05-07-2009 |