Abstract: A method for treating a subterranean region includes running a tubular string including a plurality of sealed fluid ports distributed along its length through an upper lined wellbore section and into a lower drilled bore section which intercepts a subterranean region, wherein the lower drilled bore section includes a first fluid. A second fluid is delivered through one of the tubular string and an annulus defined between the tubular string and a wall of the bore to displace the first fluid from the annulus, wherein fluid communication between the tubular member and the annulus is provided via a displacement port in a lower end region of the tubular string. At least one of the sealed fluid ports may subsequently be opened and a treating fluid is delivered through the tubular string and into the annulus via the at least one opened fluid port to treat the subterranean region.

Abstract: An assembly to be run within a well tubular includes a first fluid controller in a first section of the tubular and a second fluid controller in a second section of the well tubular. The assembly includes a set of packers for sealing of the space between the well tubular and a well bore surface of the well. The set-of packers are positioned such that a part of the well tubular having both the first fluid controller and the second fluid controller is located between the set of packers. The first fluid controller is configured to selectively block fluid flow from the interior of the well tubular to the space between the well tubular and the well bore surface. The second fluid controller is configured to selectively block fluid flow.

Abstract: A method for treating a subterranean region includes running a tubular string including a plurality of sealed fluid ports distributed along its length through an upper lined wellbore section and into a lower drilled bore section which intercepts a subterranean region, wherein the lower drilled bore section includes a first fluid. A second fluid is delivered through one of the tubular string and an annulus defined between the tubular string and a wall of the bore to displace the first fluid from the annulus, wherein fluid communication between the tubular member and the annulus is provided via a displacement port in a lower end region of the tubular string. At least one of the sealed fluid ports may subsequently be opened and a treating fluid is delivered through the tubular string and into the annulus via the at least one opened fluid port to treat the subterranean region.

Abstract: An assembly to be run within a well tubular includes a first fluid controller in a first section of the tubular and a second fluid controller in a second section of the well tubular. The assembly includes a set of packers for sealing of the space between the well tubular and a well bore surface of the well. The set-of packers are positioned such that a part of the well tubular having both the first fluid controller and the second fluid controller is located between the set of packers. The first fluid controller is configured to selectively block fluid flow from the interior of the well tubular to the space between the well tubular and the well bore surface. The second fluid controller is configured to selectively block fluid flow.

Abstract: The invention relates to an assembly to be run with a well tubular having openings provided in the wall and for being arranged in a well bore and thereby forming a space between said tubing and the well bore surface. The assembly comprising: first fluid control means and second fluid control means being provided in another opening in said well tubular. The assembly further having a set of packers for sealing of the space between said tubing and the well bore surface, said set of packers being positioned such that a part the tubular having both first and second fluid control means is located between the set of packers. The first fluid control means is adapted such that it is capable of blocking fluid flow from the interior of said well tubular to said space between said tubing and the well bore surface. The second fluid control means is adapted such that it is capable of blocking fluid flow from said space between said tubing and the well bore surface to the interior of said well tubular.

Abstract: The invention relates to an assembly to be run with a well tubular having openings provided in the wall and for being arranged in a well bore and thereby forming a space between said tubing and the well bore surface. The assembly comprising: first fluid control means and second fluid control means being provided in another opening in said well tubular. The assembly further having a set of packers for sealing of the space between said tubing and the well bore surface, said set of packers being positioned such that a part the tubular having both first and second fluid control means is located between the set of packers. The first fluid control means is adapted such that it is capable of blocking fluid flow from the interior of said well tubular to said space between said tubing and the well bore surface. The second fluid control means is adapted such that it is capable of blocking fluid flow.

Abstract: An assembly arranged in a well bore and run in conjunction with a perforated or a non perforated liner has an inflatable packer section prepared for being expanded by fluid and a valve device for opening and closing of fluid communication into the inflatable packer section. The assembly also has a fluid section connected to the inflatable packer section. The fluid section holds a fluid that is delivered into and used to inflate the inflatable packer section. An energy section in the assembly contains an energy source for delivering the fluid from the fluid section into the inflatable packer section. A triggering section includes a control for the energy source and/or the valve device. The triggering section can control the delivery of the fluid into the inflatable packer section. The triggering section also includes a communicator that signals a triggering device for initiating the expanding of the inflatable packer section.

Abstract: A tubular introduced into a wellbore is perforated at pre-selected locations after the tubular has been cemented into place. The locations of the perforations are determined by modeling inflow performance of a stimulation fluid within the formation. The inflow performance parameters include reservoir porosity, permeability, pressure, damage skin and intrusion depth, perforation diameter and penetration depth or perforation crushed zone damage and intrusion depth.

Abstract: A tubular introduced into a wellbore is perforated at pre-selected locations after the tubular has been cemented into place. The locations of the perforations are determined by modeling inflow performance of a stimulation fluid within the formation. The inflow performance parameters include reservoir porosity, permeability, pressure, damage skin and intrusion depth, perforation diameter and penetration depth or perforation crushed zone damage and intrusion depth.

Abstract: An assembly arranged in a well bore and run in conjunction with a perforated or a non perforated liner has an inflatable packer section prepared for being expanded by fluid and a valve device for opening and closing of fluid communication into the inflatable packer section. The assembly also has a fluid section connected to the inflatable packer section. The fluid section holds a fluid that is delivered into and used to inflate the inflatable packer section. An energy section in the assembly contains an energy source for delivering the fluid from the fluid section into the inflatable packer section. A triggering section includes a control for the energy source and/or the valve device. The triggering section can control the delivery of the fluid into the inflatable packer section. The triggering section also includes a communicator that signals a triggering device for initiating the expanding of the inflatable packer section.

Abstract: A method of cementing an off bottom liner including the steps of establishing a first flow blockage in the liner at a location down-hole of a cementing valve located in the side wall of the liner, opening the cementing valve which exposes openings in the sidewall of the liner, pumping cement down the liner and out through the openings in the sidewall of the liner, establishing a second flow blockage up-hole of the cementing valve, closing the cementing valve, opening the second flow blockage to establish fluid communication through the second flow blockage, and opening the first flow blockage to establish fluid communication through the first flow blockage. The steps of opening the first and second flow blockages are achieved by increasing the pressure in the liner above the blockages. In this way, it is possible to cement an off bottom liner and regain fluid communication to the wellbore below the liner without the need for any drilling operations.