E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/08 (2006.01)
Patent
CA 2484418
The objective of the invention is to smoothly merge the influx flow streams with the wellbore flow stream so as to reduce the pressure drop along the perforated section of the wellbore liner. There is disclosed a completion liner (2) for a well for the production of hydrocarbons is provided with angled ports (26) through the sidewall which reduce pressure drop along the length of the liner. There is also disclosed short imperforated completion tubing (106) for a well for the production of hydrocarbons is concentrically mounted alongside substantially only the perforated section of the production tubing (110) to cause production fluids to initially flow toward the wellhead along an annulus defined between completion tubing and the production tubing prior to exiting the annulus and commingling with fluids produced from further down hole. There is further disclosed a completion casing for a well for the production of hydrocarbons which is provided with angled perforations through the casing sidewall (326) which reduce flow resistance along length of the casing.
L'invention concerne le mélange en souplesse de flux de fluides dans un trou de forage, visant à réduire la chute de pression le long de la partie perforée de la colonne perdue. On décrit une colonne perdue de complétion pour puits d'hydrocarbures, avec des orifices disposés selon un angle sur la paroi latérale de cette colonne, pour la réduction de chute de pression susmentionnée. On décrit également un tubage court de complétion sans perforations pour puits d'hydrocarbures, monté concentrique sensiblement le long de la partie perforée seulement de la colonne de production, pour l'écoulement initial des fluides de production vers la tête de puits le long d'un anneau défini entre le tubage de complétion et la colonne de production, avant la sortie de l'anneau et le mélange avec les fluides issus d'un niveau inférieur du trou de forage. L'invention concerne enfin un tubage de complétion pour puits d'hydrocarbures, qui comporte des perforations selon un angle sur sa paroi latérale, afin de réduire la résistance au flux sur la longueur de ce tubage.
Valenti Nicholas P.
Valenti Richard M.
Marks & Clerk
Valenti Nicholas P.
Valenti Richard M.
LandOfFree
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