Repsol, S.a.

Jacobo Canal Vila

José Alvarellos Iglesias

Manuel López Reyes

María Del Carmen García García

Richard Llewellyn Lolley Bowen

Nubia Aurora González Molano

Itziar Martínez Cebrián

Ricardo César Bezerra De Melo

Ana Isabel Montenegro García

Jorge Delgado Martín

Nubia Aurora GONZÁLEZ Molano

María Del Carmen GARCÍA GARCÍA

Manuel LÓPEZ Reyes

Ana Isabel Montenegro GARCÍA

The invention provides a membrane structure suitable for a sand production test of a rock sample provided with a hollow cylinder shape, the membrane structure comprising a main body with a housing configured to confine the rock sample within; a watertight outer wall adapted to withstand external hydrostatic pressure exerted by a first fluid; a permeable inner wall limiting the housing and configured to exert pressure on the rock sample and, to inject a second fluid into the outer surface of said rock sample; a plurality of internal hollow chambers located between the watertight outer wall and the permeable inner wall, wherein each one of the plurality of internal hollow chambers includes a plurality of rigid particles filling the inner space of each hollow chamber for transmitting the external pressure exerted from the outer wall to the inner wall.

Membrane structure suitable for a sand production test

The present invention relates to the use of ultra-high-molecular-weight polyolefin particles as proppants for treating subterranean formations, as well as to compositions comprising said particles and to fracturing methods employing said particles.

Ultra-high-molecular-weight polyolefin proppants

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Móstoles-Madrid, Spain

Jacobo Canal Vila