REELWELL AS Patent applications |
Patent application number | Title | Published |
20150322721 | CASING DRILLING SYSTEM AND METHOD - A casing drilling system includes combination conduit of a casing and a pipe inside the casing. A first adapter has a flow diverter to redirect at least flow of drilling fluid returning from a bottom of a wellbore to either an interior of the pipe or an annular space between the casing and the pipe. A second adapter has a flow diverter to redirect flow of drilling fluid into the conduit through the other one of the interior of the pipe and the annular space. The second adapter has a fluid connection between either the interior of the pipe or the annular space and a rotationally fixed fluid outlet. The system includes a casing chuck having means to support the casing and a slidable conduit operable to expose an uppermost end of the casing and a connection between the second adapter and an uppermost end of the pipe. | 11-12-2015 |
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 |
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 |
20140190751 | Method and System for Drilling with Reduced Surface Pressure - A drilling method includes arranging a dual drill string ( | 07-10-2014 |
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 |
20130240267 | METHOD FOR CONTINUOUS FORMATION CORE SAMPLING - The present invention regards a method for performing core sampling during drilling of wells, comprising the steps of providing a dual bore drill pipe with drill bit in the end in the well bore, providing means to introduce a drill liquid into an annular space of the drill pipe and return it together with drill cuttings to the surface through centrally arranged return line in the dual bore drill pipe, removing larger cuttings at outlet of return pipe, and perform core testing on these cuttings, knowing where the cuttings come from in the well. The invention also regards a device for performing the invention. | 09-19-2013 |
20130087389 | Fluid Partition Unit - The present invention regards a method to be used when performing drilling in a well bore, comprising: positioning a dual bore drill pipe with a tool at on one end into a well bore, thereby forming an outer annulus between the well bore wall and the pipe and two inner bores within the pipe, dividing the outer annulus into two different sections along the longitudinal axis of the drill pipe, at least at one location close to the tool, providing a first fluid in the outer annuls and providing a second fluid within the drill pipe and around the tool, and a device. | 04-11-2013 |
20120125686 | Method And System For Transferring Signals Through A Drill Pipe System - The present invention relates to a system for transferring signals through a drill pipe system during drilling of a subsurface well. The drill pipe system comprises a first pipe ( | 05-24-2012 |
20120112115 | Sealing Arrangement For A Down Hole Valve - The present invention regards a sealing arrangement for a valve, comprising a valve element ( | 05-10-2012 |
20120103596 | down hole well tool with rolling means - A down hole well tool ( | 05-03-2012 |
20120103592 | Down hole well tool provided with a piston - A down hole well tool ( | 05-03-2012 |
20120090855 | Down hole well tool with expansion tool - A down hole well tool ( | 04-19-2012 |
20120038111 | DEVICE FOR PASSIVE PRESSURE SEALING - A sealing system between a relatively rotating element and a stationary element has at least three sealing elements arranged between the rotating element and the stationary element and arranged in series between a process fluid and an environment, and a barrier fluid arrangement to provide a barrier fluid to spaces formed between the sealing elements. The barrier fluid arrangement has at least two compensator devices where under use the pressure in the process fluid is acting on one side of a piston in the compensator device and the pressure in the barrier fluid is acting on the opposite side of the piston. There is a difference between cross sectional areas of the two sides of the piston and the difference varies between the at least two compensator devices. | 02-16-2012 |
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 |
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 |
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 |