| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
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| 02/26/2014 | CN103603606A Portable workover rig work table capable of being folded and unfolded automatically |
| 02/26/2014 | CN103603601A Inclined and vertical well drilling machine |
| 02/26/2014 | CN103603598A Train type stepping device |
| 02/26/2014 | CN103603597A Traveling-type down-the-hole drill |
| 02/26/2014 | CN102536120B Drilling and positioning device for down-the-hole drill |
| 02/26/2014 | CN101666214B Driller support device |
| 02/25/2014 | CA2637906C Apparatus for drilling machine alignment |
| 02/20/2014 | DE202014000508U1 Bohrgerät Drill |
| 02/19/2014 | EP2698498A1 Method, rock drilling rig and control apparatus |
| 02/19/2014 | CN203441380U Novel movable pedestal of marine workover rig |
| 02/19/2014 | CN203441379U ZJ45 drilling machine translation device for oil drilling in well factory |
| 02/19/2014 | CN203441378U Novel mechanical limiting structure for rotary excavating mast |
| 02/19/2014 | CN203441377U Simple-operation sliding device of pipe shed drilling machine |
| 02/19/2014 | CN203441376U Plugging structure for drop shaft |
| 02/19/2014 | CN203441363U Self-moving device for full-hydraulic drilling machine |
| 02/19/2014 | CN203441357U Refit down-the-hole drill |
| 02/19/2014 | CN103597163A Derrick apparatus |
| 02/19/2014 | CN103590752A Self-locking device of pulling cable of well drilling rig |
| 02/19/2014 | CN103590751A Area-parted spiral-lifting piece-rack type drilling floor |
| 02/13/2014 | US20140041317 System and method for delivery of oilfield materials |
| 02/12/2014 | CN203430432U Horizontal directional drilling machine drilling stand capable of being conveniently assembled |
| 02/12/2014 | CN203430431U Portable top face punching device |
| 02/12/2014 | CN203430430U Bearing?block-type?bearing mechanism for vehicle-mounted drill derrick |
| 02/12/2014 | CN203430421U Device capable of preventing mast from colliding with cab of miniature rotary drilling rig |
| 02/12/2014 | CN203429652U Dewatering well construction operating platform |
| 02/12/2014 | CN103573190A Kelly-bar connection buckling device |
| 02/12/2014 | CN103573189A Continuous drilling rig |
| 02/06/2014 | DE102012015153A1 Method for supplying carbon dioxide to drilling platform used for e.g. exploration of crude oil in see during oil and gas production, involves providing resource-line serving for supplying resource, in pipeline of platform |
| 02/05/2014 | CN203420643U Double-racking-platform constructed A-type drilling derrick |
| 02/05/2014 | CN203420642U Jumbolter supporting device and jumbolter system |
| 02/05/2014 | CN203420641U Lifting frame for drilling machine |
| 02/05/2014 | CN203420631U Rotary drilling machine |
| 02/05/2014 | CN103562484A Offshore top tensioned riser buoyancy can system and methods of field development |
| 02/05/2014 | CN103557019A Bolting machine regulating rack |
| 01/30/2014 | WO2014018519A1 System for conveying fluid from an offshore well |
| 01/29/2014 | CN203412520U Sheave wheel platform on sinking headframe |
| 01/29/2014 | CN203412519U Quick moving and fixing device of downhole drilling rig |
| 01/29/2014 | CN203412518U Indoor ceiling drilling device capable of freely adjusting drilling height |
| 01/29/2014 | CN203412517U 钻机 Rig |
| 01/29/2014 | CN203412510U Novel portable electric rock drilling machine |
| 01/29/2014 | CN103547764A Drilling system having slot for underwater storage of BOP assembly |
| 01/29/2014 | CN103541656A Hydraulic anchoring machine firm ground drill |
| 01/28/2014 | CA2809517C Elevated platform systems including fiber reinforced composite panels |
| 01/22/2014 | CN203403864U Dual-purpose support capable of being fixed in pre-assembled mode and moved |
| 01/22/2014 | CN203403827U Lifting mechanism of hydraulic anchor rod drill carriage for coal mine |
| 01/22/2014 | CN203403826U Drilling frame assembly of hydraulic anchor rod drilling carriage for coal mine |
| 01/22/2014 | CN203403815U Drilling rig slide platform of hydraulic anchor rod drill carriage for coal mine |
| 01/22/2014 | CN103527104A Mast folding and tensioning system, control method of mast folding and tensioning system and rotary drilling rig |
| 01/22/2014 | CN103527103A Electric device capable of being used for carrying out ceiling drilling operation on ground |
| 01/22/2014 | CN103527102A Mechanical device capable of being used for carrying out ceiling drilling operation on ground |
| 01/22/2014 | CN103527081A Efficient soil drilling machine |
| 01/22/2014 | CN102137982B Multi-function drilling rig and method for executing drilling rig operation |
| 01/22/2014 | CN102061890B Rotary drilling rig and follow-up frame structure thereof |
| 01/15/2014 | CN203394361U Gear rack lifting device for coalbed methane drilling machine |
| 01/15/2014 | CN203394360U Ground anchor drilling machine for underground working in oil field |
| 01/15/2014 | CN103511438A Cable dragging device for drilling platform |
| 01/15/2014 | CN103510864A Three-section hydraulic telescopic sleeved headframe |
| 01/15/2014 | CN101881134B Gallery-type vertical and horizontal dual-purpose drilling machine |
| 01/14/2014 | US8628287 Fallpipe stone dumping vessel |
| 01/09/2014 | WO2014008483A1 Apparatuses and methods for supplying electrical power to an electrocrushing drill |
| 01/09/2014 | WO2014007756A1 Force moment reducing device (mr-d) for use with self elevating drilling or production rigs, vessels or platforms (oil & gas industry) |
| 01/09/2014 | CA2877788A1 Apparatuses and methods for supplying electrical power to an electrocrushing drill |
| 01/08/2014 | CN203383741U Sliding component special for offshore drilling/workover rig |
| 01/08/2014 | CN203383740U Support leg of drilling jambo |
| 01/08/2014 | CN203383739U Drilling machine and frame thereof |
| 01/08/2014 | CN203383199U Wellhead frame mounting guiding device |
| 01/01/2014 | CN203374208U Vehicle-mounted electric hydraulic vibrating type well drill |
| 01/01/2014 | CN103492660A Offshore fluid transfer systems and methods |
| 01/01/2014 | CN103485727A Control system for normative and sequential lifting of well drill/workover rig |
| 01/01/2014 | CN103485717A Fully-hydraulic four-arm anchor rod/anchor cable drill carriage |
| 01/01/2014 | CN102628336B Construction method of batter pile construction drilling machine |
| 12/31/2013 | US8621240 User-specific hash authentication |
| 12/31/2013 | US8615960 Solar collector module |
| 12/27/2013 | CA2877530A1 Mobile rig and method |
| 12/27/2013 | CA2877524A1 Mast and guy wire systems for use with long lateral completion systems and methods |
| 12/27/2013 | CA2877499A1 Long lateral completion system and method |
| 12/26/2013 | US20130341096 Transportable single operator rig apparatus and method for optimizing drilling and/or completion |
| 12/26/2013 | US20130341000 Rig carrier interconnection support and method |
| 12/26/2013 | US20130340572 Long lateral completion system pipe tong and method of using the same |
| 12/26/2013 | US20130340356 Brace support mast assembly for a transportable rig |
| 12/25/2013 | EP2675987A1 Low headroom confined space geoexchange drilling system and method |
| 12/25/2013 | CN203362051U Oil drilling derrick |
| 12/25/2013 | CN203362050U Umbrella drill seizing hook beam supporting tower |
| 12/25/2013 | CN203362049U Support of percussion drill |
| 12/25/2013 | CN203362048U Novel punching support |
| 12/25/2013 | CN203362047U Percussion drill support |
| 12/25/2013 | CN203361116U 钻孔施工平台 Boring Construction Platform |
| 12/25/2013 | CN103470179A Rotary drilling rig |
| 12/25/2013 | CN102518397B Tension mooring type underwater drilling system and mounting method for same |
| 12/18/2013 | CN203348489U Guiding pulley rack and rotary drill |
| 12/18/2013 | CN203347698U Sliding device of drilling rig |
| 12/18/2013 | CN203347697U Pull rod of drilling rig |
| 12/18/2013 | CN203347686U Drilling machine for roadways |
| 12/18/2013 | CN203347682U Coal mine trestle-column-type emulsion drilling machine |
| 12/18/2013 | CN203346886U Piling machine where sliding shoe devices are installed |
| 12/18/2013 | CN203346873U Low-headroom pile frame |
| 12/18/2013 | CN103452488A Moving device used for coal mine drilling machine |
| 12/18/2013 | CN103452487A Twin-tower derrick system |
| 12/18/2013 | CN103452486A Derrick support device |
| 12/18/2013 | CN103452485A Derrick tipping prevention device |