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Back to the List of the Granted Patents                                                Click here to download AP2536 PDF

(11)Patent No :AP 2536

(21)Application No :AP/P/2009/004756

(22)Filing Date :13.06.2007

(24)Date of Grant &19.12.2012

 

(45)Publication : 

 

(30)  Priority Data

(33) Country(31) Number(32) Date

NO2006318107.07.2006

 

(84)Designated State 

 

BWGMGHKELSMW  MZ   NA   SL

SDSZT ZUGZMZW

(73) Applicant(s)

 

STATOIL PETROLEUM AS, Forusbeen 50, 4035 Stavanger,

 

Norway

(72) Inventors

AKRE Haavard, Norway

MATHIESEN Vidar, Norway

(74) Representative

FISHER CORMACK & BOTHA

 

(51)  International  Classification   E21B 34/08 (2006.01)E21B 43/12 (2006.01)

(54)Title 

 

Method for flow control and autonomous valve of flow control device 

 

(57)Abstract 

 

A method for flow control and a self-adjusting valve or flow control device, in particular useful in a production pipe for producing oil and/or gas from a well in an oil and/or gas reservoir, which production pipe includes a lower drainage 

 

pipe preferably being divided into at least two sections each including one or more inflow control devices which communicates the geological production formation with the flow space of the drainage pipe. The fluid flows through an 

 

inlet (10) and further through a flow path of the control device (2) passing by a movable disc (9) or movable device which is designed to move relative to the opening of the inlet and thereby reduce or increase the flow -through area (A2) by exploiting the Bernoulli effect and stagnation pressure created over the disc (9), whereby t he control device, depending on the composition of the 

 

(56)Documents Cited :US-6354378US-2006027377

 

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