E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/267 (2006.01) E21B 21/06 (2006.01)
Patent
CA 2757179
In an embodiment, a method of operating at least one pressure vessel (203) to inject a particulate slurry(603) into a high-pressure line(170), comprises a first operating cycle comprising: isolating the at least one pressure vessel from the high-pressure line; introducing particulate solids (275) into the pressure vessel through a particulate solids inlet aperture (205); a second operating cycle comprising: providing high-pressure flow into the pressure vessel; and providing a high-pressure slurry flow from the pressure vessel into the high-pressure line. The method further comprises operating the at least one pressure vessel in the second operating cycle to create a heterogeneous flow of slurry into the high- pressure line.
L'invention concerne, selon un mode de réalisation, un procédé de mise en marche d'au moins une cuve sous pression afin d'injecter une boue particulaire dans une conduite haute pression, comprenant une premier cycle de fonctionnement consistant à : isoler ladite cuve sous pression de la conduite haute pression; introduire des matières solides particulaires dans la cuve sous pression à travers une ouverture d'entrée de matières solides particulaires; un second cycle de fonctionnement consistant à : fournir un flux haute pression dans la cuve sous pression; et fournir un flux de boue haute pression provenant de la cuve sous pression dans la conduite haute pression. Le procédé comprend en outre la mise en marche de ladite cuve sous pression lors du second cycle de fonctionnement afin de créer un flux hétérogène de boue dans la conduite haute pression.
Gambier Philippe
Hubenschmidt Joe
Lassek John
Luharuka Rajesh
Pessin Jean-Louis
Schlumberger Canada Limited
Smart & Biggar
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