Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 15 - Supports for the drilling machine, e.g. derricks or masts
Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619)
12/2012
12/05/2012CN202578570U Installation structure of cathead and rotary drilling rig
12/05/2012CN202578563U Novel racking platform overturning pedal railing
12/05/2012CN202578539U Novel mobile positioning device of drilling machine
12/05/2012CN202578538U Bench hydraulic drill support with multi-angle perforating function
12/05/2012CN202578537U Percussion drill bracket for overhead drilling construction
12/05/2012CN202578536U Adjustable support for perforating floor
12/05/2012CN202578535U Slideway folding device of oil workover rig
12/05/2012CN202578534U Conveniently disassembled and assembled rotary-lifting type drilling platform
12/05/2012CN202578533U Novel racking platform flexible footboard railing
12/05/2012CN202578532U Anti-colliding device of derrick
12/05/2012CN202578531U Centralizer for telescopic oil cylinder of derrick
12/05/2012CN202578530U Turnable stand pipe table of derrick
12/05/2012CN202578529U Novel overall translation device of drilling machine
12/05/2012CN202578528U Frame hydraulic leveling mechanism for raise boring machine
12/05/2012CN202578527U Water drilling bracket for drilling on bridge anti-collision wall and cable trench wall of railway
12/05/2012CN202578526U Electric drill support for drilling roof
12/05/2012CN202578525U Rotary drilling rig mast oil cylinder turnover prevention device
12/05/2012CN202578524U Straight-inclined double-purpose rotary table body supporting device for rock core drilling machine
12/05/2012CN202578510U Horizontal sampling drilling machine of deep sea polymetallic sulfide mining chimney
12/05/2012CN202578509U Inclined and straight well driller
12/05/2012CN202578503U Two-stage type hydraulic machine erecting mechanism for raise boring machine
12/05/2012CN202578502U Electricity power source crawler-type rotary drilling machine
12/05/2012CN202578487U Counterweight telescoping mechanism for rotary drilling rig
12/05/2012CN202577262U Moving device for cantilever beam of drilling platform
11/2012
11/30/2012CA2775875A1 Earth drilling apparatus and method
11/29/2012WO2011124961A3 Dual drilling activity drilling ship
11/28/2012CN202565290U 测井通信系统 Logging communication system
11/28/2012CN202560239U Lifting type drilling and blasting trolley
11/28/2012CN202560110U Adjustable support for small well drilling machine
11/28/2012CN202560097U Side slope anchoring drill construction device
11/28/2012CN202560095U Airborne outburst prevention drill device
11/28/2012CN102803642A Method and system for integrating sensors on an autonomous mining drilling rig
11/28/2012CN102797421A Arm rod retracting device of construction machine and piling method for arm rod retracting device
11/27/2012US8316588 Rig for drilling or maintaining oil wells
11/27/2012CA2775854A1 Underwater drilling arrangement and method for introducing a foundation element into a bed of a body of water
11/22/2012WO2012158821A1 Ram tensioner system
11/21/2012CN202544835U Left-right limit control system for mast of rotary drilling rig
11/21/2012CN202544756U Drilling machine
11/21/2012CN202544745U Lengthened drilling arm convenient to transport for drilling machine
11/21/2012CN202544743U Drilling machine
11/21/2012CN202544741U Door-shaped drive drilling machine with twin tower teeth
11/21/2012CN202544740U Power head for vehicle-mounted drilling machine and vehicle-mounted coalbed gas drilling machine using same
11/21/2012CN202544738U Drilling arm assembly of multifunctional road pile drilling machine
11/21/2012CN202544737U Pressurization type drilling machine
11/21/2012CN102787818A Small motor-driven geological core driller
11/21/2012CN102787808A Novel large-diameter sinking headframe for ultradeep vertical shaft
11/21/2012CN102787803A Full-hydraulic multi-functional strip mine drilling machine
11/21/2012CN101975028B Real-time leveling base for floating type well drilling derrick
11/21/2012CN101781972B Crawler-type lifting top and slope bolt and anchor construction drill
11/14/2012EP2521832A1 Power screwdriver having rotary input control
11/14/2012CN202531070U Blowout preventer transfer device
11/14/2012CN202531055U Integrated type vehicle-mounted workover rig capable of operating with pressure
11/14/2012CN202531033U Automatic loading and unloading support for drilling machine
11/14/2012CN202531032U Operating mechanism of 180-degree deep hole drill carriage for coal mine
11/14/2012CN202531031U Working mechanism of coal mining deep hole drill carriage with strong safety
11/14/2012CN202531030U Rotary support assembly of 180-degree deep hole drill carriage for mine
11/14/2012CN202531029U 90-degree rotation working mechanism of deep hole drill carriage for coal mine
11/14/2012CN202531028U Safety bracket special for replacing packing at pumping wellhead
11/14/2012CN202531024U 90-degree rotating deep hole drill carriage for coal mine
11/14/2012CN202531023U 180-degree deep hole drill carriage for coal mine
11/14/2012CN202531021U Safe and stable 90-degree rotating coal mine deep hole boring rig
11/14/2012CN102782244A A drilling installation
11/14/2012CN102777128A Folding boring tower
11/14/2012CN102777127A Hydraulic swing-up ship type base
11/14/2012CN102777124A Integrated core drilling machine for single-cylinder double-acting tower crane
11/14/2012CN101806219B Two-piece all-hydraulic tunnel drilling machine
11/14/2012CN101451427B Drilling device and drilling method
11/08/2012DE102011100691A1 Bohrgerät und Verfahren zum Betreiben eines Bohrgeräts Drill and method of operating a drill
11/07/2012EP2520756A1 Mast element for a drill
11/07/2012CN202520308U Mechanical single arm type hydraulic anchor rod drilling machine
11/07/2012CN202520241U Double-stroke propelling mechanism for deepwater coring drilling machine
11/07/2012CN202520240U Novel drilling machine
11/07/2012CN202520239U Roof bolter operation platform device
11/07/2012CN202520238U Fixing device of boring frame
11/07/2012CN202520237U Universally-adjustable roofbolter and universally-adjustable jumbolter
11/07/2012CN202520236U Adjustable mast bracket
11/07/2012CN102767339A Adjustable hydraulic support leg device
11/07/2012CN102767338A Automatic pylon folding device
11/07/2012CN102296932B Floor type indoor ceiling concrete slab bottom drilling mechanism
11/07/2012CN102182397B Multi-angle coal petrography drilling machine
11/07/2012CN101250981B Construction method for accurate locating small distance air face hole-drilling
11/01/2012WO2012148782A2 Offshore fluid transfer systems and methods
11/01/2012CA2832727A1 Offshore fluid transfer systems and methods
10/2012
10/31/2012CN202510040U Drilling travel device of horizontal whirl spraying drilling machine
10/31/2012CN202510039U Electric hammer bracket for skyward punching
10/31/2012CN202510038U Drilling cramp of drilling rig
10/31/2012CN202510037U Drilling rig with counting device
10/31/2012CN202510036U Integral diamond drill frame of retaining wall
10/31/2012CN102758589A Derrick with floating frame
10/26/2012WO2012144952A1 A multi-functional jack up system for decommissioning an offshore platform
10/24/2012EP2513407A1 A drilling installation
10/24/2012CN202500504U Working positioning shock absorption device of rock drill
10/24/2012CN202500503U Derrick for skew drill rig
10/24/2012CN202500502U Telescopic type drilling machine derrick
10/24/2012CN202500501U Vehicle-mounted derrick
10/24/2012CN202500500U Platform lifting device for two-arm top slope anchor rod and anchor cable construction drill carriage
10/24/2012CN202500489U All-dimensional reversing device of jackdrill
10/24/2012CN102753782A Power screwdriver having rotary input control
10/24/2012CN102747965A Lifting device for deep hole drill rig
10/24/2012CN101942970B Hoisting device of power tap
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