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| Number | Title | Issue Date |
| 8037950 | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods A particle impact drilling system and method are described. In several exemplary embodiments, the system and method may be a part of, and/or used with, an apparatus or system, methods, to excavate a subterranean formation. The system can including, for example, remo... | 10/18/2011 |
| 7909116 | Impact excavation system and method with improved nozzle A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors is introduced into at least one cavity formed in the body member. The suspension is discharged from a nozzle disposed in the cavity to... | 03/22/2011 |
| 7493966 | System and method for drilling using a modulated jet stream A system and method for making a hole in an object, the system having jet means for generating an abrasive jet formed of a mixture of a fluid and abrasive particles, and for blasting the abrasive jet with an erosive power into impingement with the object in an impin... | 02/24/2009 |
| 7431104 | Device for transporting particles of a magnetic material and tool comprising such a device A device for transporting magnetic particles in a selected direction has a support surface extending in the selected direction, a magnet arranged to generate a magnetic field for retaining the particles on the support surface such that the magnetic field on the supp... | 10/07/2008 |
| 7419014 | Fluid jet drilling tool The invention features an excavating device for excavating a hole in a geological formation, which excavating device includes: a body rotatable inside the hole along a rotation axis; a nozzle arranged on the body t... | 09/02/2008 |
| 7398839 | Impact excavation system and method with particle trap A system and method for excavating a subterranean formation, according to which a slurry of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharged from the cavity so that the impactors remove a portion ... | 07/15/2008 |
| 7398838 | Impact excavation system and method with two-stage inductor A system and method for excavating a subterranean formation according to which a fluid is introduced into a vessel to draw a plurality of impactors into the vessel to form a suspension. The suspension is discharged from the vessel and into another vessel, and fluid ... | 07/15/2008 |
| 7383896 | Impact excavation system and method with particle separation A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharging from the cavity so that the impactors remove a por... | 06/10/2008 |
| 7343987 | Impact excavation system and method with suspension flow control A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are passed between a drill string to a body member for discharge from the body member to remove at least a portion of the formation. T... | 03/18/2008 |
| 6152356 | Hydraulic mining of tar sand bitumen with aggregate material A method and apparatus for the hydraulic removal of bitumen from a tar sand deposit comprises forming a borehole into the tar sand deposit and securing a casing into the borehole. Into the casing is inserted a mining tool having a water/diluent channel an... | 11/28/2000 |
