| Patent application number | Description | Published |
|---|
| 20100058828 | Cladding Method and Expansion Tool - A cladding method for sealing a leak in a casing, a pipeline, a borehole, or a well downhole using a liner having a tube with a first diameter, a plurality of circumferential grooves, and a plurality of seals in the grooves extending beyond the first diameter. The cladding method has at least the steps of fastening the liner in a fastening mechanism of an expansion tool, inserting the liner having a first part and a second part into the casing outside the leak, positioning an expansion mechanism of the expansion tool at the first part of the liner, expanding the first part of the liner until the seals in the grooves of the first part of the liner are pressed against the casing and fasten the first part to the casing, releasing the liner so that the liner is free of the tool and the liner is held in place by the seals in the first part of the liner, and expanding all the way through the liner by expanding also the second part of the liner to abut the casing for sealing the leak. | 03-11-2010 |
| 20100101802 | Drilling Head for Reboring a Stuck Valve - The present invention relates to a drilling head for reboring a stuck valve or drilling into the formation downhole. The invention furthermore relates to a drilling tool comprising the drilling head and a driving unit. The drilling head comprises a hole saw beside a drill bit for cutting out a piece from the stuck valve. Furthermore, the invention relates to a drilling system comprising the drilling tool and a driving tool for moving the drilling tool downhole, a method of drilling; and a use of the drilling head. | 04-29-2010 |
| 20100108378 | Perforation Tool with Switch - A perforation tool e.g. for perforation of a formation, a well or the like downhole by detonation of a charge. The perforation tool has at least one charge and at least one switch for detonation of the charge. The switch has a housing, at least one contact, a shaft having a first end with a fastening member enabling a slidable fastening of the shaft in a predetermined position in relation to the tool and a second end for extending into the housing, and a conductor provided on the shaft enabling an electrical current to be conducted between the contact and the for detonation of a charge when the shaft extends within the housing. | 05-06-2010 |
| 20100126710 | Stroker Tool - A stroker tool for providing an axial force in an axial direction of a downhole tool. The stroker tool has a pump, a driving unit for driving the pump, and an axial force generator. The generator has an elongated piston housing having a first and a second end, and a piston provided on a shaft, and the shaft penetrates the housing for transmitting the axial force to another tool. The piston is provided in the piston housing so that the shaft penetrates the piston and each end of the piston housing and divides the housing into a first and a second chamber, and the first and the second chamber are each fluidly connected to the pump via at least one duct so that the pump can pump fluid into one chamber by sucking fluid from the other chamber for moving the piston within the housing, and thereby moving the shaft back and forth. | 05-27-2010 |
| 20100126777 | Drilling System with a Barrel Drilling Head Driven by a Downhole Tractor - A drilling system for drilling out a sample of a formation, a well, or the like downhole. The drilling system has a drilling head having an at least partly hollow cylindrical body with a circumferential rim. The circumferential rim has at least one cutting edge. Furthermore, the drilling system has a driving unit for rotating the cylindrical body and the cutting edge for cutting a piece out of the formation, and a driving tool such as a downhole tractor for driving the drilling head forward in the well or formation. | 05-27-2010 |
| 20100319907 | Drilling Tool with Feed Control - The present invention relates to a drilling tool ( | 12-23-2010 |
| 20110121516 | METHOD FOR SEALING OFF A WATER ZONE IN A PRODUCTION WELL DOWNHOLE AND A SEALING ARRANGEMENT - The invention relates to a sealing method for sealing off a leak in a casing ( | 05-26-2011 |
| 20110127727 | SEALING ARRANGEMENT AND SEALING METHOD - The invention relates to a sealing arrangement ( | 06-02-2011 |
| 20110146970 | Anchor Tool - An anchor tool for anchoring a downhole tool within a casing, a well, or any other downhole, hollow space. The tool has a longitudinal tool body with a centre axis extending through the tool body in the centre of the body, a first recess, a second recess, a third recess, and a fourth recess in the tool body; and a first anchor, a second anchor, a third anchor, and a fourth anchor. The first anchor is provided in the first recess, and so forth, and the anchors are outwards movable in the recesses for anchoring the tool. Each anchor provided in the recesses extends through the tool body transverse to and across the centre axis and the anchors and the corresponding recesses are situated in the tool body for providing a symmetrical anchoring of the anchor tool. | 06-23-2011 |
