| Patent application number | Description | Published |
|---|
| 20080196881 | Wellbore Cleaning Tool and Method - There is disclosed a cleaning tool for use in cleaning ferrous material from a wellbore, a cleaning assembly comprising a plurality of such wellbore cleaning tools, and a method of cleaning ferrous materials from a wellbore. | 08-21-2008 |
| 20090025927 | WELLBORE CLEANING METHOD & APPARATUS - This invention relates to well cleaning methods and apparatus. In particular, this invention relates to a method of drilling and cleaning a wellbore. | 01-29-2009 |
| 20090126933 | DEVICE AND METHOD FOR RETRIEVING DEBRIS FROM A WELL | 05-21-2009 |
| 20090255665 | DUAL FUNCTION CLEANING TOOL - A cleaning tool for cleaning a liner top in a well bore. The tool includes cleaning elements, typically scrapers, which are arranged eccentrically to an axial bore through the tool. The elements are biased outwardly to contact an inner surface of a polished bore receptacle (PBR) at a position with a curvature to match the PBR and to present leading edges of each element when positioned at a surface of a neighbouring casing. The tool may further provide a top dress mill and act as a packer actuator sub. This provides a tool which performs a number of functions on a single trip in a well bore. | 10-15-2009 |
| 20100065125 | VALVE SEAT ASSEMBLY, DOWNHOLE TOOL AND METHODS - A valve assembly ( | 03-18-2010 |
| 20100132954 | BALL SEAT ASSEMBLY AND METHOD OF CONTROLLING FLUID FLOW THROUGH A HOLLOW BODY - A method of controlling fluid flow through a hollow body, uses a ball seat assembly ( | 06-03-2010 |
| 20100252281 | DOWNHOLE FLOW CONTROL TOOL AND METHOD - A downhole flow control tool | 10-07-2010 |
| 20110024119 | DOWNHOLE DEBRIS REMOVAL TOOL - A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, the downhole debris removal tool having an annular jet pump sub, a mixing tube, a diffuser, and a suction tube, flowing a fluid through a bore of the annular jet pump sub, jetting the fluid from the annular jet pump sub into the mixing tube, displacing an initially static fluid in the mixing tube through the diffuser, thereby creating a vacuum effect in the suction tube to draw a debris-laden fluid into the downhole debris removal tool, and removing the tool downhole debris removal tool from the wellbore after a predetermined time interval is also disclosed. Further, an isolation valve including a housing, an inner tube disposed coaxially with the housing, and a gate, wherein the gate is configured to selectively close an annular space between the housing and the inner tube is disclosed. | 02-03-2011 |
