Vestavik
Ola Vestavik, Fosnavag NO
Patent application number | Description | Published |
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20150184494 | METHOD FOR RUNNING CONDUIT IN EXTENDED REACH WELLBORES - A method for inserting a conduit into a wellbore includes inserting the conduit into the wellbore until an upper end of a predetermined section thereof is disposed proximate a selected position in the wellbore and reducing pressure in the conduit to a predetermined pressure. | 07-02-2015 |
Ola Vestavik, Eggesbones NO
Patent application number | Description | Published |
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20120090855 | Down hole well tool with expansion tool - A down hole well tool ( | 04-19-2012 |
Ola Vestavik, Egggesbones NO
Patent application number | Description | Published |
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20120103596 | down hole well tool with rolling means - A down hole well tool ( | 05-03-2012 |
Ola M. Vestavik, Fosnavag NO
Patent application number | Description | Published |
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20150027781 | MUD LIFT PUMP FOR DUAL DRILL STRING - A mud lift pump for a dual drill string includes an energy input and an energy output in fluid communication with a fluid return flow passage in the dual drill string. | 01-29-2015 |
Ola M. Vestavik, Eggesbones NO
Patent application number | Description | Published |
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20100276143 | Method and device for cleaning and sealing a well - The present invention relates to a method for cleaning and possibly sealing a subsurface well. According to the method a multichannel tool string comprising an adapter on a first end of the tool string, a guide device at the second end of the tool string are run into the well, whereupon the guide device is activated in order to permit the well to be flushed by the supply of fluid through at least one of the channels in connection with the tool string and fluids and particles from the well are transported back to the surface through at least one other of the channels in connection with the tool string. The invention also relates to a device for cleaning and possibly sealing a subsurface well. | 11-04-2010 |
20110180269 | Down hole valve device - The present invention regards a valve device for use with a down hole tool comprising at least a first fluid line and a return fluid line, the valve device comprises a first inlet and a first outlet forming a first flow path between them, and a second inlet and a second outlet forming a second flow path between them, at least one closure element for closing and or opening at least one of the flow paths. According to the invention there is at least one closure element together with the respective flow paths forms a first and second check valves, which in a first state prevents a fluid from flowing from the first outlet to the first inlet and a fluid from flowing from the second inlet to the second outlet. The invention also regards a method for operating a down hole valve device. | 07-28-2011 |
20140190751 | Method and System for Drilling with Reduced Surface Pressure - A drilling method includes arranging a dual drill string ( | 07-10-2014 |
Ola M. Vestavik, Eggebones NO
Patent application number | Description | Published |
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20110240285 | Downhole tool unit - The invention concerns a unit for a down hole well tool comprising a tool unit comprising at least one first fluid conduit and a return fluid conduit in use forming a well annulus space between the tool unit and the well bore. The tool unit is arranged with at least one piston provided for dividing the well annulus space into at least two well annulus spaces. The communication of fluid between the adjacent well annulus spaces at each side of the piston is controlled by the relative movement between the first fluid conduit and a control element. | 10-06-2011 |
Ola Michael Vestavik, Fosnavag NO
Patent application number | Description | Published |
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20150184477 | Method and Device for a Running Tool - A method and device for drilling or cleaning an underground borehole. The device includes a drilling tool, a drill string with two pipe conduits extending up to the surface and an arrangement for providing one drilling fluid for circulation in a drill string and a second arrangement for providing a second fluid in an annulus formed between the drill string and the wall of a borehole making the drill string approximately weightless. | 07-02-2015 |
Ola Michael Vestavik, Hafrsfjord NO
Patent application number | Description | Published |
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20100314107 | METHOD AND DEVICE FOR TRANSFERRING SIGNALS WITHIN A WELL - A method and device for a running tool for drilling or cleaning and setting a lining and a completion string in an underground borehole, The running tool comprising a drilling tool, an expandable casing, an expansion tool, a packer arranged to seal against the wall of the borehole, and at least one conduit extending up to the surface. The drilling tool is releasably connected to the lower portion of the expanding casing, and the expansion tool and the packer are releasably connected to the upper portion of the expanding casing. The running tool is arranged to communicate with the surface through at least one pipe conduit. | 12-16-2010 |
20100319935 | METHOD AND DEVICE FOR A RUNNING TOOL - A method and device for drilling or cleaning in underground borehole including a drilling tool, a drill pipe with two pipe conduits extending up the surface and further including an arrangement for providing one drilling fluid for circulation with a drill string and a second arrangement for providing a second fluid in an annulus formed between the drill string and the wall of a wellbore. | 12-23-2010 |
Ola Michael Vestavik, Eggesbones NO
Patent application number | Description | Published |
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20130284519 | Gravity Based Fluid Trap - A method to be used when performing drilling in a well bore and a device for performing the method are disclosed. The method includes positioning in the well bore a drill string comprising at least two pipe conduits, an upper end, and a lower end comprising a drilling tool, thereby forming an outer annulus between the well bore wall and the drill string. A well bore section comprising at least one u-shaped section is drilled. A first fluid with a first density is fed into the outer annulus above the u-shaped section, and a second fluid with a second density is provided within the drill string and around the tool, where the first density is larger than the second density. | 10-31-2013 |