| Patents for E21B 3 - Rotary drilling (4,061) |
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| 03/05/2015 | US20150060144 Turbine blade for turbodrills |
| 03/05/2015 | US20150060078 Subsea drilling with casing |
| 02/25/2015 | EP2839102A1 Drilling assembly with high-speed motor gear system |
| 02/19/2015 | WO2014205601A9 Rotary excavating bucket drill |
| 02/19/2015 | DE102013214635A1 Antrieb und Verfahren zur Bereitstellung hoher Antriebsdynamik bei hohen Antriebsleistungen bei der Gas- und/oder Ölgewinnung sowie Verwendung eines solchen Antriebs Drive and method for providing a high driving dynamics at high power requirements at the gas and / or oil extraction and use of such a drive |
| 02/17/2015 | US8956260 Pneumatic motor of pneumatic packing machine |
| 02/17/2015 | US8955618 Tool for crushing coke |
| 02/12/2015 | US20150041115 Seal configuration for top drive swivel apparatus and method |
| 02/11/2015 | CN204152423U 一种挖掘机钻机的钢丝绳驱动与调节装置 One kind of rig rope excavator driver and regulating device |
| 02/11/2015 | CN204152422U 一种挖掘机钻机滑块限位装置 One kind of excavator rig slider stopper |
| 02/11/2015 | CN104350230A 连续旋转式钻井系统和使用方法 Continuous rotary drilling system and method of use |
| 02/11/2015 | CN104343384A 一种岩心钻机配套用转盘 One kind of core drilling rig with turntable |
| 02/11/2015 | CN104343383A 一种用于土遗址的钻孔装置 An apparatus for drilling earthen sites |
| 02/11/2015 | CN102877786B 一种提高旋挖钻机成孔效率的方法和装置 A method and apparatus for rotary drilling rig into the hole efficiency |
| 02/10/2015 | US8950511 Apparatus and method for installing ground anchoring systems |
| 02/05/2015 | US20150034391 Outdoor multi-use hand tool |
| 02/04/2015 | CN204139961U 一种深度可测的岩石钻孔机 A deep rock drilling machine can be measured |
| 02/04/2015 | CN104334817A 具有高速马达齿轮系统的钻井组件 With a drilling assembly speed motor gear system |
| 02/04/2015 | CN104329022A 车载式钻机回转装置 Truck-mounted drilling rig rotary device |
| 02/04/2015 | CN104329021A 具有导向功能的转盘钻机 Turntable rig having a guide function |
| 02/04/2015 | CN104329020A 一种加强型长螺旋嵌岩施工设备及其工艺 A way of strengthening the long spiral embedded in rock type of construction equipment and technology |
| 02/04/2015 | CN103104191B 超大孔径桩基钻孔机 Large aperture pile drilling machine |
| 01/29/2015 | WO2015013051A1 Mud hydraulic top drive |
| 01/29/2015 | US20150027688 Interlocking low profile rotating control device |
| 01/29/2015 | DE112013002136T5 Entlang Zahnstangen bewegbarer Bohrplattform-Schlitten mit von Elektromotoren angetriebenen Ritzeln Along racks movable drilling platform slide with driven electric motor pinions |
| 01/28/2015 | CN204126553U 搅拌桩机传动机构 Stir pile driving mechanism |
| 01/28/2015 | CN204126552U 一种带有易断型卡瓦的钻机旋转头装置 A slip rig swivel head unit with easy-off type |
| 01/28/2015 | CN104314461A 一种动力头岩心钻机的液压控制系统 The hydraulic control system of a power head core rig |
| 01/28/2015 | CN104314460A 新型螺旋钻机 The new auger |
| 01/28/2015 | CN102607770B 旋挖钻机的重心检测装置和检测方法、旋挖钻机 Focus detection device and the detection method of rotary drilling rig, rotary drilling rig |
| 01/27/2015 | US8939232 Hand-held power tool device |
| 01/22/2015 | WO2015009395A1 Top drive module connector and methods |
| 01/22/2015 | US20150021094 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations |
| 01/21/2015 | CN204114037U 一种岩心钻机分动装置 One kind of core drilling rig splitter device |
| 01/21/2015 | CN204113112U 快速锚杆机 Fast bolting machine |
| 01/21/2015 | CN204113109U 一种旋挖钻用油冷器 One kind of rotary drill oil cooler |
| 01/21/2015 | CN204113108U 一种可变速两档链条并车箱 Two tranches of one kind of variable speed chain and trunk |
| 01/21/2015 | CN204113107U 动力头卡槽式固定机构 Fixed institutional power head slot |
| 01/21/2015 | CN204113106U 机械密封顶驱冲管总成及顶部驱动钻井系统 Mechanical seal red tube top drive assembly and the top drive drilling system |
| 01/21/2015 | CN104295230A 潜水钻机 Submersible drilling rig |
| 01/21/2015 | CN104295229A 一种煤矿使用的钻具 Drill a coal use |
| 01/17/2015 | CA2856859A1 Top drive bearing for use in a top drive system, and made of non-vacuum arc remelted steel configured to achieve an extended life cycle at least equivalent to a life factor of three for a vacuum arc remelted steel |
| 01/15/2015 | US20150014063 Top Drive Module Connector and Methods |
| 01/14/2015 | CN204099326U 一种单向平衡阀及桅杆油缸控制系统和旋挖钻机 One-way balancing valve and mast cylinder control system and rotary drilling rig |
| 01/14/2015 | CN204098795U 带小型动力水龙头煤层气钻修机 With a small power drill faucet repair machines CBM |
| 01/14/2015 | CN204098777U 煤层气井用小型动力水龙头 CBM wells with small power taps |
| 01/14/2015 | CN204098776U 柴油发电机组和飞轮储能微电网系统 Diesel generator sets and flywheel energy storage micro-grid system |
| 01/14/2015 | CN204098775U 旋挖钻机、架体、滑耳和滑架 Rotary drilling rig, the frame body, sliding ear and carriage |
| 01/14/2015 | CN104278947A 顶驱设备 Top Drive Equipment |
| 01/14/2015 | CN104278946A 插接组装式水井钻机 Plug assembled drilling rig |
| 01/14/2015 | CN103216192B 一种具有地下探测功能的螺旋钻进机器人 Spiral kind of underground drilling robot detection function |
| 01/14/2015 | CN103061680B 滑架、动力装置和旋挖钻机 Carriage, power units and rotary drilling rig |
| 01/13/2015 | US8931579 Borehole generator |
| 01/07/2015 | EP2820230A2 A continuous rotary drilling system and method of use |
| 01/07/2015 | CN204086858U 水平定向钻机动力头控制装置 Horizontal directional drill head control device |
| 01/07/2015 | CN204082743U 旋挖钻机及主卷扬提升优先的液压控制系统 Rotary drilling rig and hoist the main priority of the hydraulic control system |
| 01/07/2015 | CN204082021U 三轴三角形水泥搅拌钻杆 Triaxial triangle cement mixing drill |
| 01/07/2015 | CN204081989U 可旋转的坑道钻机动力头 Rotatable tunnel drill head |
| 01/07/2015 | CN204081988U 一种双输出双转向入岩动力头减速机 A dual output pairs turned into rock power head gear |
| 01/07/2015 | CN204081987U 一种履带导轨式液压式回转钻机 Tracked rail hydraulic rotary rig |
| 01/07/2015 | CN104265182A 双杆打井机 Double rod drilling machine |
| 01/07/2015 | CN104265164A 高原山地基坑开挖施工设备的钻进掏挖提土装置 Plateaus of excavation and drilling equipment mention digging soil device |
| 01/07/2015 | CN104265158A 岩石钻机 Rock drill |
| 01/07/2015 | CN104265157A 煤层气钻机动力头水龙头装置 CBM drill head faucet device |
| 01/07/2015 | CN104265156A 高原山地基坑开挖施工设备的掏挖提土装置 Plateaus excavation construction equipment digging mention soil device |
| 01/07/2015 | CN104265155A 一种旋挖钻机动力头缓冲装置及旋挖钻机 One kind of rotary drilling rig power head cushioning device and rotary drilling rig |
| 12/31/2014 | CN204061719U 配重装置与旋挖钻机连接结构 Counterweight device and connection structure rotary drilling rig |
| 12/31/2014 | CN204061718U 旋挖钻机用配重装置 Rotary Drilling Rig with counterweight means |
| 12/31/2014 | CN204060510U 一种可无级调速的切削钻机 One kind stepless cutting rig |
| 12/31/2014 | CN204060505U 用于超深井石油钻机的多液压马达同步驱动转盘结构 Multi hydraulic motor for ultra-deep drilling rig synchronous drive turntable structure |
| 12/31/2014 | CN204060504U 一种煤层气钻机动力头水龙头装置 One kind of CBM drill head faucet device |
| 12/31/2014 | CN204060503U 新型钻机整体皮带并车传动装置 A whole new rig and car transmission belts |
| 12/31/2014 | CN204060502U 钻机动力控制装置 Drill control means |
| 12/31/2014 | CN104251120A 一种打孔安装多用装置 One kind of drilling to install multi-purpose device |
| 12/31/2014 | CN104250970A 一种新型可视化智能超流态混凝土灌注桩装置及施工方法 A new visual intelligence superfluid concrete pile installations and construction methods |
| 12/31/2014 | CN102725474B 用于管柱的转台设备 For string turntable equipment |
| 12/30/2014 | US8919457 Apparatus and method for determining axial forces on a drill string during underground drilling |
| 12/30/2014 | US8919217 Handheld power tool with a shiftable gear |
| 12/24/2014 | CN204040899U 一种快捷轻便地理坐标布设装置 A fast, lightweight geographical coordinates wiring apparatus |
| 12/24/2014 | CN204040897U 一种钻机的滑动连接装置 Sliding connection means a drilling rig |
| 12/24/2014 | CN204040896U 一种钻机恒负载控制装置 One kind of rig constant load control device |
| 12/24/2014 | CN204040895U 一种新型扁平空间开孔气动工具 A new space opening flat pneumatic tools |
| 12/24/2014 | CN204040894U 一种便于拆装钻杆的钻机主轴 An easy disassembly spindle drill rig |
| 12/17/2014 | CN204024462U 车装钻机转盘动力输入装置 Truck-mounted rotary drilling rig power input device |
| 12/17/2014 | CN204024461U 钻机动力头自动推进装置 Drill head self-propelled device |
| 12/17/2014 | CN204024460U 一种钻机用后置应急动力源 One kind of drills, rear emergency power source |
| 12/17/2014 | CN104214162A 一种单向平衡阀及桅杆油缸控制系统和旋挖钻机 One-way balancing valve and mast cylinder control system and rotary drilling rig |
| 12/17/2014 | CN104213851A 旋挖钻机潜孔破岩钻油管回转接头孔底止转装置 Rotary drilling rig DTH broken rock drill holes up to the end hose swivel joint rotation device |
| 12/17/2014 | CN104213835A 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 |
| 12/11/2014 | US20140360780 Handling Device for Drill Rods and So-Called Top Drive Having Such a Handling Device |
| 12/11/2014 | US20140360743 Rock drilling machine, rotating sleeve and method for lubrication |
| 12/11/2014 | DE202014105800U1 Drehbare Spannvorrichtung Rotatable chuck |
| 12/10/2014 | CN204003743U 加压油缸和旋挖钻机 Pressurized cylinders and rotary drilling rig |
| 12/10/2014 | CN204002877U 锚杆钻机及其加压装置 Roofbolter and pressure device |
| 12/10/2014 | CN204002599U 钻具和旋挖钻机 Drilling and rotary drilling rig |
| 12/10/2014 | CN204002593U 便携式全液压地质岩心钻机 Portable Hydraulic geological core drilling rig |
| 12/10/2014 | CN204002555U 一种钻坑机 One kind of drill hole machine |
| 12/10/2014 | CN204002547U 矿用导轨式无级变速乳化液钻机 Mine rail CVT emulsion drilling |
| 12/10/2014 | CN204002546U 一种岩心钻机的动力头锁紧装置 One kind of core drilling rig power head locking device |
| 12/10/2014 | CN204002545U 一种便携式动力头岩心钻机 A portable power head core drilling rig |