E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/38 (2006.01)
Patent
CA 2695397
The present invention discloses a corrugated settling cup and a multi-cup uniform flux gas anchor, which belong to oilfield gas-liquid separation devices. The external profile of the cup body of the corrugated settling cup rises in a corrugated shape along an axial direction of the corrugated settling cup, which facilitates rapid aggregation and rise of gas. The multi-cup uniform flux gas anchor is comprised of a plurality of the corrugated settling cups, and further includes a central pipe, a plurality of settling cup protectors and a well-flushing valve, wherein the plurality of settling cup protectors are slipped onto the central pipe in clearance fit and the plurality of the corrugated settling cups are slipped onto the central pipe in clearance fit between every two settling cup protectors, a plurality of liquid inlet holes are located evenly on the central pipe at a position close to an inner bottom of each corrugated settling cup, and a lower portion of the central pipe is connected to the well-flushing valve. With the plurality of the corrugated settling cups, the gas anchor divides a gas-liquid mixture into a number of portions, and the external profile rising in a corrugated shape allows the separated gas to rapidly aggregate and rise up, thereby achieving the object of performing effective gas-liquid separation, increasing pump efficiency and oil production, saving energy and reducing consumption.
L'invention concerne une cuve de décantation nervurée (5), la cuve ayant un corps de cuve, une ouverture et un étage de positionnement (52) étant prévus au niveau de la partie inférieure (55) du corps de cuve, plusieurs trous de positionnement (53) étant formés au niveau de la partie supérieure de l'étage de positionnement (52), des saillies de positionnement (54) correspondant aux trous de positionnement (53) étant formées au niveau de la partie inférieure (55) de la cuve de décantation nervurée (5), le profil extérieur du corps de cuve de décantation nervurée s'élevant dans la direction axiale selon une forme nervurée. L'invention concerneégalement un piège à gaz à flux uniforme à plusieurs cuves, le piège à gaz comprenant un tuyau central (7), plusieurs cuves de décantation nervurées (5), plusieurs corps de protection de cuve de décantation (6) et une vanne de balayage de puits (9), le profil extérieur du corps de cuve de décantation nervurée s'élevant dans la direction axiale selon une forme nervurée.
Li Li
Wan Jun
Wang Demin
Wang Yan
Zhang Shumin
Daqing Oilfield Co. Lit
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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