Patent application number | Description | Published |
20080230218 | Segmented Sleeve on a Downhole Tool String Component - In one aspect of the invention a downhole tool string component has a segmented sleeve slideably attached over the exterior of a mandrel which is adapted for connection to an adjacent tool string component. An end of the sleeve is abutted against a shoulder element of the mandrel and an opposite end of the sleeve is axially loaded by a threaded element attached to the mandrel. The sleeve comprises at least one sleeve segment with an engagement end comprising at least one axial anti-rotation assembly adapted to transfer torque to an adjacent sleeve segment, the shoulder element, or the threaded element. | 09-25-2008 |
20080230277 | Pocket for a Downhole Tool String Component - A downhole tool string component, having a tubular body with an outer diameter. A first, second, and third flange are disposed around the outer diameter of the tubular body at different axial locations. A first sleeve is disposed around the tubular body such that opposite ends of the first sleeve fit around at least a portion of the first and second flanges, forming a first sealed pocket around the outer diameter of the tubular body. A second sleeve is disposed around the tubular body such that opposite ends of the second sleeve fit around at least a portion of the second and third flanges, forming a second sealed pocket around the outer diameter of the tubular body. | 09-25-2008 |
20090065251 | Downhole Jack Assembly Sensor - In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element. | 03-12-2009 |
20090152011 | Downhole Drive Shaft Connection - In one aspect of the present invention, a section of a drill string has a drill bit with a body intermediate a shank and a working face, the working face having at least one cutting element. A jack element is disposed within the drill bit body and has a distal end substantially protruding from the working face. A drive shaft is in communication with the jack element and a rotary source. The drive shaft has a first portion secured within a bore of a tool string component in the tool string and a second portion secured within a bore of the drill bit. The first and second portions of the drive shaft are connected at a pin and box connection wherein the first and second portions are automatically connected as the tool string component is mechanically coupled to the drill bit. | 06-18-2009 |
20100051256 | Downhole Tool String Component that is Protected from Drilling Stresses - In one aspect of the present invention, a downhole tool string component has a first and second threaded end on a mandrel, the first threaded end attached to a first sleeve and the second threaded end attached to a second sleeve. An intermediate sleeve assembly is disposed circumferentially around the mandrel and intermediate the first and second threaded ends, and the intermediate sleeve assembly is primarily isolated from stress of the first or second sleeve. | 03-04-2010 |
20100108385 | Downhole Jack Assembly Sensor - In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element. | 05-06-2010 |
20100155137 | Segmented Tubular Body - In one aspect of the invention, a downhole tool string component comprises a tubular body with a first and a second tool joint adapted to connect to adjacent tool string components, and a central bore adapted to pass drilling mud between the joints. A sleeve circumferentially disposed about an outer surface of the tubular body. The sleeve is rigidly attached to the outer surface at first and second sleeve ends and forming at least three stabilizer blades. A nuclear source and at least one nuclear detector are disposed within a gap formed between the inner surface of the sleeve and the outer surface of the tubular body. | 06-24-2010 |
20100155589 | Downhole Nuclear Tool - In one aspect of the invention, a downhole tool string component comprises a tubular body with a first and a second tool joint adapted to connect to adjacent tool string components, and a central bore adapted to pass drilling mud between the joints. A sleeve circumferentially disposed about an outer surface of the tubular body. The sleeve is rigidly attached to the outer surface at first and second sleeve ends and forming at least three stabilizer blades. A nuclear source and at least one nuclear detector are disposed within a gap formed between the inner surface of the sleeve and the outer surface of the tubular body. | 06-24-2010 |
20100186944 | Accessible Downhole Power Assembly - In one aspect of the present invention, a downhole power assembly has a downhole drill string component having a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid. The component has an independent tubular battery cage disposed around the center mandrel. At least one battery is disposed in at least one bay formed in the tubular battery cage and a tubular sleeve is adapted to slide over and cover the tubular battery cage. | 07-29-2010 |