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 10 - Drill bits
Patents for E21B 10 - Drill bits (19,464)
05/2014
05/14/2014CN103790521A 水平井安全高效泥浆钻井射流磨钻头 Safe and efficient mud drilling horizontal wells jet mill drill
05/14/2014CN103790520A 钻头和用于钻头的制造方法 And a method for manufacturing the drill bit
05/14/2014CN103790519A 一种离心甩块跟管钻具及其装配方法 A centrifugal rejection block with drill pipe and fitting methods
05/14/2014CN103790518A 牙轮钻头 Cone bit
05/14/2014CN102322220B 对卡塞的阀件进行重新穿孔的钻头 For the jammed valve member re perforation drill
05/13/2014US8721752 PDC cutter with stress diffusing structures
05/13/2014US8721182 Bent bearing assembly for downhole mud motor
05/13/2014US8720613 Drill bit for a rock drilling tool with increased toughness and method for increasing the toughness of such drill bits
05/13/2014US8720612 Cutting element and a method of manufacturing a cutting element
05/13/2014US8720611 PDC bits with cutters laid out in both spiral directions of bit rotation
05/13/2014US8720610 Resilient bit systems and methods
05/13/2014US8720609 Drill bit with continuously sharp edge cutting elements
05/13/2014US8720604 Method and system for steering a directional drilling system
05/13/2014CA2776158C Wellbore milling tool with wear pad
05/08/2014WO2014071228A1 Pdc bits having rolling cutters and using mixed chamfers
05/08/2014WO2014069948A1 Pump and gas booster using same
05/08/2014WO2014068141A1 A polycrystalline super hard construction and a method of making same
05/08/2014WO2014068138A1 A polycrystalline super hard construction and a method of making same
05/08/2014WO2014068137A1 A polycrystalline super hard construction and a method of making same
05/08/2014WO2014068130A1 A polycrystalline super hard construction and a method of making same
05/08/2014US20140124271 Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements
05/08/2014US20140124270 Pdc bits having rolling cutters and using mixed chamfers
05/07/2014EP2726696A1 Ultrasound assisted electrochemical catalyst removal for superhard materials
05/07/2014CN203584315U 一种多功能公路钻头 A multifunctional road drill
05/07/2014CN203584314U 磨料水射流破岩钻头 Abrasive Waterjet broken rock drill
05/07/2014CN203584313U 镶套复合片钻头 Casement PDC drill bit
05/07/2014CN203584312U 一种适用定向钻进的pdc钻头 A directional drilling pdc drill applicable
05/07/2014CN203584311U 限位抗冲击钻井pdc钻头 Limit the impact of drilling pdc drill
05/07/2014CN203584310U 一种旋转齿钻头 A rotary drill teeth
05/07/2014CN203584309U 垂直钻进钻头 Vertical drilling drill
05/07/2014CN203584308U 一种同轨混合布齿型pdc钻头 One kind of cloth mixed with toothed rail pdc drill
05/07/2014CN203584307U 新型煤矿井下全长钻孔的瓦斯抽采装置 The new full-length coal mine gas drainage drilling equipment
05/07/2014CN203584306U 旋挖钻机钻头 Rotary drilling rig drill
05/07/2014CN203584305U 可提高效率的钻头 Can improve the efficiency of the drill bit
05/07/2014CN103775000A 底臌防治锚管钻机 Prevention of Heave anchor pipe rig
05/07/2014CN103774998A 钻探用内芯可脱式钻头的内芯开启装置 Drilling within the inner core drill core detachable Opener
05/07/2014CN103774997A 安装在钻机上的自动变径成孔器 Mounted on the rig into the hole is automatically adjustable
05/07/2014CN103774996A 不产生空穴现象的金刚石钻头 Does not produce the phenomenon of diamond drill hole
05/07/2014CN103774995A 抗冲击镐形金刚石复合齿 Shock-ho-shaped diamond composite tooth
05/07/2014CN103774994A 一种扩孔钻头 One kind of reaming drill
05/07/2014CN103774993A 一种压电陶瓷式声波钻头 A piezoelectric ceramic sonic drill
05/07/2014CN103774987A 掏槽孔钻车 Cut holes drilled Cart
05/07/2014CN102900372B 一种pdc钻头合理使用寿命预测方法及装置 One kind pdc drill reasonable life prediction method and apparatus
05/07/2014CN102704855B 金刚石地质取芯钻头的制备工艺 Geological diamond core drill preparation process
05/07/2014CN102635315B 一种带修孔钻头的接头 A tape repair joint drill hole
05/06/2014US8714285 Method for drilling with a fixed bladed bit
05/06/2014US8714281 Bidirectional cross airflow machine tool
05/06/2014CA2647416C Drill bit assembly with a logging device
05/01/2014WO2014065965A1 Ultra-hard material cutting elements, methods of forming the same, and bits incorporating the same
05/01/2014WO2014064485A1 Improvements in or relating to downhole tools
05/01/2014US20140116791 Diamond bonded construction with thermally stable region
05/01/2014US20140116790 Cutting element attached to downhole fixed bladed bit at a positive rake angle
05/01/2014US20140116789 Multi-layered pdc cutters
05/01/2014US20140116788 Cutting elements having curved or annular configurations for earth-boring tools, earth-boring tools including such cutting elements, and related methods
05/01/2014US20140116787 Tricone rock bit for horizontal wells and hard formation wells
05/01/2014US20140116786 Bearing assemblies, apparatuses, and motor assemblies using the same
04/2014
04/30/2014EP2725185A2 Deburring mill tool for wellbore cleaning
04/30/2014EP2723966A1 Coated particles and related methods
04/30/2014EP2723965A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools
04/30/2014CN203570243U Staggered scraper drill bit
04/30/2014CN203570241U Casing coring drilling tool
04/30/2014CN203570209U Double-water hole diamond compact anchor rod bit
04/30/2014CN203570208U Churn-drill bit suction hood
04/30/2014CN203570207U Screw expansion type concentric down-the-hole pipe-following drilling rig
04/30/2014CN203570206U End pressure-bearing type rock bolt reamer
04/30/2014CN203569561U Novel pile forming device of steel pipe protection wall cast-in-place piles following up drill
04/30/2014CN203563317U Unearthed drilled bit structure for hole-digging machine
04/30/2014CN103758463A Diamond-impregnated bit of arc tooth
04/30/2014CN103758462A Drill bit for coal mine underground soft coal seam gas extraction drill hole protection
04/30/2014CN103758461A Manufacturing method of petroleum exploration drill
04/30/2014CN103758460A Telescopic anti-drill-balling mixing pile drill bit
04/30/2014CN103758459A Tooth form capable of preventing hole wall plastic deformation and mounting method
04/30/2014CN103758458A Hybrid single-cone drill bit
04/30/2014CN103758457A Assembled roller bit
04/30/2014CN103758454A Pore forming, pit building, powder stamping and pressure relief integrated device in soft coal development area
04/30/2014CN103752832A Manufacturing method of coal exploration drill bit
04/30/2014CN102477846B Soil-layer broaching bit
04/25/2014CA2831324A1 Drilling systems and fixed cutter bits with adjustable depth-of-cut to control torque-on-bit
04/24/2014WO2014062415A1 Methods and system for lubrication pressure relief for a roller cone drill bit
04/24/2014WO2014062348A1 Anti-balling coating on drill bits and downhole tools
04/24/2014WO2014062174A1 System and method for using mobile computing devices to select drill bits for wellbores
04/24/2014US20140110181 Methods for designing fixed cutter bits and bits made using such methods
04/24/2014US20140110180 Ultra-hard material cutting elements, methods of forming the same and bits incorporating the same
04/24/2014US20140110179 Reamer tool positionable in a wellbore
04/24/2014US20140110171 Downhole tool and control module
04/23/2014EP2721243A2 Earth boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods
04/23/2014EP2721242A2 Two-centre rotary boring bit and method for deepening an existing well
04/23/2014CN203559791U Shaft bottom negative-pressure upward-movement nozzle PDC drill
04/23/2014CN203559790U High-strength drill bit used for drilling
04/23/2014CN203559789U Stepped drill bit for drilling
04/23/2014CN203559788U Combined cutter on drilling rig
04/23/2014CN203559787U Staggered tooth-shaped drill bit used for drilling
04/23/2014CN203559786U Drill bit of high-wind-pressure impacter
04/23/2014CN203559785U Enhanced rock drill bit with gauge protection step
04/23/2014CN203559784U Underreaming drill bit
04/23/2014CN203559783U Underreaming drill bit
04/23/2014CN203559782U Tricone bit
04/23/2014CN203559781U Combined type well wall coring instrument drill bit
04/23/2014CN203559780U Drilling and cutting integrated drill for mining
04/23/2014CN203559779U Anti-deviating drill bit for exploration drilling
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