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| Application No. | Application Title | Issue Date |
| 20050016772 | Method of drilling a borehole into an earth formation A method of drilling a borehole in an earth formation is provided, the borehole containing a body of drilling fluid. The method includes the steps of: a) inserting a plurality of selected solid magnetisable particles into the borehole, the particles being susceptible of... | 01/27/2005 |
| 20050006147 | Method and apparatus with slips assembly for coupling tubulars without interruption of circulation A slips assembly which comprises a plurality of slip segments which, when positioned adjacent to each other, form a collar, which collar is larger than the diameter of the tubular body of the tubular at the top of the drill string and smaller than the diameter the upset... | 01/13/2005 |
| 20050000732 | Drilling device and method for producing undercut holes A drilling device for producing undercut holes. The drilling device includes a drilling tool having an axis of rotation and a cutting portion arranged such that the cutting portion drills a hole with a longitudinal axis that is radially offset with respect to said axis ... | 01/06/2005 |
| 20050000731 | Method and apparatus for treating a productive zone while drilling The present invention is directed to a method and apparatus for delivering a well treatment fluid to a productive zone of a subterranean formation at the same time that a well bore is being drilled. The method includes the steps of delivering a drill-in fluid to a drill... | 01/06/2005 |
