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 7 - Special methods or apparatus for drilling
Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
12/2014
12/17/2014CN204024471U 一种旋挖钻机 One kind of rotary drilling rig
12/17/2014CN204024470U 一种窄机身六臂全液压锚杆锚索钻车 A narrow fuselage six-arm hydraulic drill bolt and cable cars
12/17/2014CN204024469U 一种配套连续采煤机使用的六臂全液压锚杆锚索钻车 Supporting the continuous miner to use one kind of six-arm hydraulic drill bolt and cable cars
12/17/2014CN204024468U 一种折叠式公路汽油动力钻孔机 A folding road gasoline-powered drills
12/17/2014CN204024467U 全液压驱动坑道钻机 Full hydraulic drive drilling rig
12/17/2014CN104220692A 拆卸扳手系统 Removing wrench system
12/17/2014CN104220691A 用于进行钻孔和给钻孔布设内衬的设备 Drilling and for drilling equipment used for laid-lined
12/17/2014CN104217712A 工程机械操作室的主动降噪装置以及凿岩钻机 Active noise reduction device engineering machinery and drilling rigs operating room
12/17/2014CN104213839A 与钻头和用于扩眼孔的油管之间的管柱配合的井下工具 With the drill string and tubing for the expansion of cooperation between the eyelets of downhole tools
12/17/2014CN104213838A 驱动筒和旋挖钻机 Drive cylinder and rotary drilling rig
12/17/2014CN104213837A 驱动筒和旋挖钻机 Drive cylinder and rotary drilling rig
12/17/2014CN104213836A 一种非开挖导向钻的导向板 A non-excavation-oriented drill guide plate
12/17/2014CN104213835A 一种水平定向钻机泥浆及行走系统的速度控制装置 A horizontal directional drilling mud and walking speed control system
12/17/2014CN104213834A 一种减阻工具及往复轴向工艺方法 One kind of drag reduction tool and process for reciprocal axial
12/17/2014CN104213833A 水平定向钻穿越施工方法及其钻孔设备 Horizontal directional drilling construction methods and drilling equipment
12/17/2014CN104213832A 一种全液压履带式钻机集成控制系统 A fully hydraulic crawler drilling rig integrated control system
12/17/2014CN104213831A 一种集煤矿采掘、支护以及运输平行快速作业的锚杆钻车 A set of coal mining, bolting and drilling operations fast parallel transport vehicles
12/17/2014CN104213830A 用于窄安全密度窗口地质条件的控压钻井方法 MPD method for density narrow safety window geological conditions
12/17/2014CN103291219B 钻进-冲孔一体化水力冲孔钻头 Drilling - Integrated hydraulic punching punching drill
12/16/2014US8911180 Underwater work assembly and method for anchoring thereof
12/16/2014US8911179 Dual-derrick ice-worthy jack-up drilling unit
12/16/2014US8910729 Method and apparatus for drilling large-diameter hole in ground
12/11/2014US20140365052 Mining vehicle and method for its energy supply
12/11/2014US20140360787 Down Hole Motor Apparatus and Method
12/11/2014US20140360785 Continuous Circulating Concentric Casing Managed Equivalent Circulating Density (ECD) Drilling For Methane Gas Recovery from Coal Seams
12/11/2014US20140360782 System and method for steering in a downhole environment using vibration modulation
12/11/2014US20140360781 Formation dip geo-steering method
12/11/2014US20140360778 Downhole deep tunneling tool and method using high power laser beam
12/11/2014US20140360743 Rock drilling machine, rotating sleeve and method for lubrication
12/11/2014US20140360730 Downhole swivel apparatus and method
12/11/2014US20140360723 Protective sheath through a casing window
12/10/2014CN204002625U 储能式混合动力修井机 Energy storage in hybrid workover
12/10/2014CN204002596U 一种钻机旋转支腿机构 One kind of rotary drilling rig legs agency
12/10/2014CN204002589U 钻机架 Rig
12/10/2014CN204002585U 一种旋挖钻机滑板套件及旋挖钻机 One kind of rotary drilling rig skateboard kit and rotary drilling rig
12/10/2014CN204002562U 涡轮驱动式水平井套管牵引器 Turbine-driven horizontal well casing traction
12/10/2014CN204002561U 急倾斜煤层综采工作面开切眼下矸孔孔壁加固装置 Steep Seam now fully mechanized coal face cut open hole wall reinforcement device Refuse
12/10/2014CN204002560U 用于水平分支喷射钻井的自牵引软管总成 For jet drilling horizontal branch since pulling hose assembly
12/10/2014CN204002559U 一种全液压履带式钻机集成控制系统 A fully hydraulic crawler drilling rig integrated control system
12/10/2014CN204002558U 一种水平定向钻机罩 A horizontal directional drilling cover
12/10/2014CN204002557U 一种锚杆钻机 One kind Roofbolter
12/10/2014CN204002556U 一种钻孔机 One kind of drill
12/10/2014CN204002555U 一种钻坑机 One kind of drill hole machine
12/10/2014CN204002554U 井下可调控的钻机底座 Downhole drilling rig can be regulated
12/10/2014CN204002553U 双升降可折叠式踏板装置 Double lift foldable pedal device
12/10/2014CN204002552U 超大口径钻机吸排机头结构 Large diameter suction head rig structure
12/10/2014CN204002551U 一种快速施工接地极打孔器 A rapid construction grounding Punchers
12/10/2014CN204000843U 一种桩管挤压扩孔器 One kind of pile pipe extrusion reamer
12/10/2014CN104204406A 用于连续和近连续钻孔的系统和方法 For continuous and near continuous drilling system and method
12/10/2014CN104204397A 在钻井的同时进行压裂的系统和方法 While drilling system and method for fracturing
12/10/2014CN104196455A 一种锚固孔孔底单翼扩孔方法 One kind of anchoring hole hole bottom wing reaming method
12/10/2014CN104196454A 造斜扩孔钻具 Whipstocking reaming drill
12/10/2014CN104196453A 煤层气开发井 CBM development wells
12/10/2014CN104196452A 旋转导向钻井系统的导向方法 Rotary steerable drilling system-oriented approach
12/10/2014CN104196451A 旋转导向钻井系统 Rotary steerable drilling system
12/10/2014CN104196450A 一种用于软地质层加固的改进钻具 A soft layer of reinforcement improved geological drill
12/10/2014CN104196449A 钻井法凿井垂直钻进钻具 Shaft Drilling vertical drilling drill
12/10/2014CN104196448A 煤矿用智能在线深孔钻车 Smart Online Deep Mine Drill
12/10/2014CN104196447A 一种万向摆臂装置 Comprising a universal arm device
12/10/2014CN104196446A 一种配套连续采煤机使用的六臂全液压锚杆锚索钻车 Supporting the continuous miner to use one kind of six-arm hydraulic drill bolt and cable cars
12/10/2014CN104196445A 一种偏摆式半自动换杆液压凿岩钻机 Semiautomatic change one kind of partial tilting hydraulic rock drill rod
12/10/2014CN104196444A 一种可无级调速的切削钻机 One kind stepless cutting rig
12/10/2014CN104196443A 一种窄机身六臂全液压锚杆锚索钻车 A narrow fuselage six-arm hydraulic drill bolt and cable cars
12/10/2014CN104196442A 一种反井钻机在竖井或斜井施工中的方法 An Anti-well drill method or inclined shaft construction
12/10/2014CN103244053B 矩形钻孔机 Rectangular Drills
12/10/2014CN103061671B 井下减阻降扭器 Underground drag down the torque converter
12/10/2014CN103016044B 煤矿井下钻孔的钻进、增透、修复与气驱置换综合方法 Coal mine drilling boreholes, AR, repair and replacement of gas drive an integrated approach
12/10/2014CN102720429B 一种液压驱动的凿岩装置 A hydraulically driven drilling apparatus
12/10/2014CN102561944B 一种多孔咬合桩钻机及具有其的施工工艺 A porous bite pile rigs and has its construction process
12/09/2014US8905163 Rotary drill bit with improved steerability and reduced wear
12/09/2014US8905159 Eccentric steering device and methods of directional drilling
12/09/2014US8905158 Downhole tool
12/09/2014US8905156 Drop away funnel for modular drilling templates
12/09/2014US8905155 Marine well with shallow-water flow monitoring
12/04/2014US20140354032 Solution mining method with horizontal fluid injection
12/04/2014US20140353040 Methods of fabricating cutting elements for earth-boring tools and methods of selectively removing a portion of a cutting element of an earth-boring tool
12/04/2014US20140353036 Apparatus and Method for Measuring Inclination in Subsea Running, Setting, and Testing Tools
12/04/2014US20140353035 Drilling Apparatus for Reducing Borehole Oscillation
12/04/2014US20140353034 Devices and Methods for Horizontal Directional Drilling with a Boring Tool Library
12/02/2014US8899878 Portable winch
12/02/2014US8899353 Post hole digger with integrated safety features
12/02/2014US8899352 System and method for drilling
12/02/2014US8899350 Method and apparatus for detection of drill bit wear
12/02/2014US8899348 Surface gas evaluation during controlled pressure drilling
11/2014
11/27/2014US20140346157 Method to control the environment in a laser path
11/27/2014US20140345952 Method and apparatus for reaming well bore surfaces nearer the center of drift
11/27/2014US20140345948 Apparatuses and methods for determining temperature data of a component of an earth-boring drilling tool
11/27/2014US20140345944 Rotary steerable drilling tool with a linear motor
11/27/2014US20140345856 Method of drilling a well
11/25/2014US8893826 Optimized reaming system based upon weight on tool
11/25/2014US8893824 Steerable drilling system
11/25/2014US8893823 Methods and apparatus for drilling directional wells by percussion method
11/25/2014US8893778 System and method of fracturing while drilling
11/20/2014US20140338982 Drill Bit with Angulary Offset Centerlines
11/20/2014US20140338981 Tools for use in subterranean boreholes having expandable members and related methods
11/20/2014US20140338980 Systems and Methods for Limiting Torque Transmission
11/20/2014US20140338977 Bottomhole assembly design method to reduce rotational loads
11/20/2014US20140338976 Extendable cutting tools for use in a wellbore
11/20/2014US20140338974 Active control of drill bit walking
11/20/2014US20140338908 Cementing whipstock apparatus and methods
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