US 7,383,886 B2
	Device and a method for selective control of fluid flow between a well and surrounding rocks
Arthur H. Dybevik, Sandnes (Norway); and Svein Kvernstuen, Sandnes (Norway)
Assigned to Reslink AS, Algard (Norway)
Appl. No. 10/561,721 PCT Filed Jun. 15, 2004, PCT No. PCT/NO2004/000175 § 371(c)(1), (2), (4) Date May 26, 2006, PCT Pub. No. WO2004/113671, PCT Pub. Date Dec. 29, 2004.
Claims priority of application No. 20032916 (NO), filed on Jun. 25, 2003.
Prior Publication US 2006/0266524 A1, Nov. 30, 2006
Int. Cl. E21B 43/08 (2006.01); E21B 43/12 (2006.01)

U.S. Cl. 166—369  [166/227; 166/296]

10 Claims

1. A device for selective control of fluid flow between a flow pipe of a well and surrounding rocks in a borehole, in which the flow pipe is provided with at least one flow-through particle filter placed externally on the flow pipe and between the flow pipe and the rocks, and in which said filter is connected in a flow-through manner to the flow pipe via a flow channel, characterized in that the flow pipe is provided with an imperforated pipe wall inside of and vis-à-vis said flow channel when installing the flow pipe in the well, after which the flow pipe may be perforated selectively inside of said flow channel for one or several filters along the flow pipe, whereupon fluids may flow through the flow channel and the filter via perforation apertures in the flow pipe.