|
| US3934659 | 15 Abr 1975 | 27 Ene 1976 | | Apparatus for drilling holes in earth surface |
| US4306627 | 21 Feb 1979 | 22 Dic 1981 | Flow Industries, Inc. | Fluid jet drilling nozzle and method |
| US4611672 | 18 Jun 1984 | 16 Sep 1986 | Vereinigte Edelstahlwerke Aktiengesellschaft | Drill bit |
| US4878548 | 21 Ene 1988 | 7 Nov 1989 | Eastman Christensen | Nozzle retention system for a drill bit |
| US5199512 | 4 Sep 1990 | 6 Abr 1993 | CCore Technology and Licensing, Ltd. | Method of an apparatus for jet cutting |
| US5291957 | 29 Mar 1993 | 8 Mar 1994 | CCore Technology and Licensing, Ltd. | Method and apparatus for jet cutting |
| US5469926 | 22 Abr 1994 | 28 Nov 1995 | bor-mor, Inc. | Directional boring drill bit blade |
| US5542486 | 4 Mar 1994 | 6 Ago 1996 | CCORE Technology & Licensing Limited | Method of and apparatus for single plenum jet cutting |
| US5862871 | 20 Feb 1996 | 26 Ene 1999 | Ccore Technology & Licensing Limited, A Texas Limited Partnership | Axial-vortex jet drilling system and method |
| US5879057 | 12 Nov 1996 | 9 Mar 1999 | Amvest Corporation | Horizontal remote mining system, and method |
| US7258176 | 15 Abr 2004 | 21 Ago 2007 | Particle Drilling, Inc. | Drill bit |
| US7503407 | 22 Jul 2004 | 17 Mar 2009 | Particle Drilling Technologies, Inc. | Impact excavation system and method |
| US7568525 | 27 Sep 2005 | 4 Ago 2009 | Nord Service, Inc. | Method and system for increasing well rate using well-capital-string perforation |
| US7757786 | 16 May 2008 | 20 Jul 2010 | PDTI Holdings, LLC | Impact excavation system and method with injection system |
| US7793741 | 16 Ago 2005 | 14 Sep 2010 | PDTI Holdings, LLC | Impact excavation system and method with injection system |
| US7798249 | 1 Feb 2006 | 21 Sep 2010 | PDTI Holdings, LLC | Impact excavation system and method with suspension flow control |
| US7909116 | 16 Ago 2005 | 22 Mar 2011 | PDTI Holdings, LLC | Impact excavation system and method with improved nozzle |
| US7980326 | 14 Nov 2008 | 19 Jul 2011 | PDTI Holdings, LLC | Method and system for controlling force in a down-hole drilling operation |
| US7987928 | 9 Oct 2008 | 2 Ago 2011 | PDTI Holdings, LLC | Injection system and method comprising an impactor motive device |
| US7997355 | 3 Jul 2007 | 16 Ago 2011 | PDTI Holdings, LLC | Apparatus for injecting impactors into a fluid stream using a screw extruder |
| US8037950 | 30 Ene 2009 | 18 Oct 2011 | PDTI Holdings, LLC | 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 |
| US8113300 | 30 Ene 2009 | 14 Feb 2012 | PDTI Holdings, LLC | Impact excavation system and method using a drill bit with junk slots |
| US8162079 | 8 Jun 2010 | 24 Abr 2012 | PDTI Holdings, LLC | Impact excavation system and method with injection system |
| US8186456 | 5 Oct 2011 | 29 May 2012 | PDTI Holdings, LLC | 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 |
