Other

Eni S.p.a.

Enitecnologie S.p.a.

Alberto Guarneri

Sandra Cobianco

Thomas Paul Lockhart

Stefano Carminati

Felicia Massetti

Alessandro Lezzi

Alessandro Nardella

Marco Brignoli

Martin Bartosek

Raffaele Tomaciello

Method for the removal and recovery of the oily component from cuttings coming from the drilling of oil wells by treatment of the cuttings with a solvent, which can be compressed to the liquid state, at a pressure value ranging from 45 to 80 bar and a temperature corresponding to the saturation value.

[object Object]

Composition of water-based drilling fluids characterized in that they comprise an oil in water emulsion.

Drilling fluids comprising oil emulsions in water

Process for reducing the adsorption of hydrosoluble polymers onto rock matrix, which comprises putting the rock matrix in contact with an aqueous solution of polymers containing sacrificial agents, preferably selected from ionic and non-ionic oligomeric surface-active agents. In the preferred embodiment the surface-active agents are non-ionic.

Process for reducing the adsorption of polymers onto rock matrix

Non-damaging drilling fluids

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Casalbuttano, Italy

Alberto Guarneri