| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 09/14/2011 | CN201972621U 新型彩板落水管抱箍 The new color plates downspouts hoop |
| 09/14/2011 | CN201972620U 抽油杆接箍和抽油杆组 And sucker rod coupling group |
| 09/14/2011 | CN201972619U 数字型非标钻具连接机构 Digital Non-standard drill attachment mechanism |
| 09/14/2011 | CN201972618U 一种油田钻井用的钻杆耐磨接头 One kind of oil drilling with drill pipe joints wear-resistant |
| 09/14/2011 | CN201972617U 一种油田管道水平脱节器 One kind of level of oil pipeline out of touch devices |
| 09/14/2011 | CN201972616U 旋塞安全防滑卡 Cock slip card security |
| 09/14/2011 | CN201972615U 插接杆安全接头及插接杆组件 Plug connectors and plug safety lever rod assembly |
| 09/14/2011 | CN201972614U 一种镀镍基多元合金防腐油管 One kind of nickel-based multi-alloy tubing corrosion |
| 09/14/2011 | CN201972613U 一种镀钨基非晶态合金套管 One kind plated tungsten-based amorphous alloy casing |
| 09/14/2011 | CN201972612U 一种锌铝共渗防腐油管 A zinc aluminum tubing corrosion permeation |
| 09/14/2011 | CN201972611U 一种防卡阻的直连型钻杆 An anti-jamming Direct Connect type drill |
| 09/14/2011 | CN102187049A Ultra-low friction coatings for drill stem assemblies |
| 09/14/2011 | CN102182418A Joint device for underwater dry-type Christmas tree sealed cabin |
| 09/14/2011 | CN102182404A Cast-in-situ tubular pile rotary drilling rig capable of forming annular hole and piling method |
| 09/14/2011 | CN102182177A Integrated machine capable of drilling holes, rotating and expanding disk and cleaning holes |
| 09/14/2011 | CN101749252B Centralizing underground annulus pumping screw turbopump |
| 09/14/2011 | CN101665621B Preparation and application of ultrahigh wear-resisting hydrogen sulfide-proof polyether-ether-ketone aqueous suspension specially used for oil-well tube |
| 09/14/2011 | CN101586452B Method of monitoring coal mining solid pack pressure |
| 09/14/2011 | CN101089357B Rockbolt construction drill method and tube component for rockbolt construction drill |
| 09/13/2011 | US8016520 Connector for releasable connection between an anchorage in the form of a female part arranged on a floating means and a male part formed at the end of a retrievable umbilical |
| 09/13/2011 | US8016051 Drilling apparatus and method for drilling wells |
| 09/13/2011 | CA2557868C Rotating systems associated with drill pipe for conveying electrical power to downhole systems |
| 09/13/2011 | CA2510461C Wellbore consolidating tool for rotary drilling applications |
| 09/09/2011 | WO2011059342A3 Device and method for attaching an id-marker to a production pipe |
| 09/09/2011 | WO2011031384A3 Non-rotating buoyancy modules for sub-sea conduits |
| 09/08/2011 | US20110214855 Expandable Device for Use in a Well Bore |
| 09/08/2011 | US20110214854 Attachment of control lines to outside of tubular |
| 09/08/2011 | US20110214771 Armour reinforcement |
| 09/08/2011 | DE102010010036A1 Sealing arrangement for sealing annular space formed between interior connecting rod and exterior connecting rod of drilling drive unit of drilling device, has elastic sealing element for sealing gap of annular space |
| 09/07/2011 | EP2363571A2 Actuation assembly for riser connection dog |
| 09/07/2011 | EP2362927A1 Disconnect device for downhole assembly |
| 09/07/2011 | EP2179123B1 Method and device for cleaning and sealing a well |
| 09/07/2011 | CN201963297U 天然气引压管线防冻堵装置 Gas pipeline antifreeze impulse blocking device |
| 09/07/2011 | CN201963266U 一种井下双管工艺管柱 A downhole twin-tube technology column |
| 09/07/2011 | CN201963243U 智能式全自动抽油杆密封防喷器 Intelligent automatic rod seal BOP |
| 09/07/2011 | CN201963217U 用于水下钻孔套管的扶正器 For underwater drilling casing centralizer |
| 09/07/2011 | CN201963216U 耐高温液压双向减震器 Two-way high-temperature hydraulic shock absorbers |
| 09/07/2011 | CN201963215U 一种钻机水接头 One kind of rig water fittings |
| 09/07/2011 | CN201963214U Connector of parasitical pipe and sleeve |
| 09/07/2011 | CN201963213U 防滑脱扶正抽油杆 Slip off the sucker rod centralizer |
| 09/07/2011 | CN201963212U 钢制抽油杆、抽油杆组和管钳 Steel rod, rod and tube clamp group |
| 09/07/2011 | CN201963211U 一种油井套管深度标志环 One kind of well casing depth markers ring |
| 09/07/2011 | CN201963210U 火驱注气电点火工艺管柱 Fire drive electric ignition gas injection process column |
| 09/07/2011 | CN201963209U 一种用于钻杆的带压钻孔装置 An apparatus for drilling with drill pipe pressure |
| 09/07/2011 | CN201963208U 动力及信号传输钻杆 Power and signal transmission drill |
| 09/07/2011 | CN201963191U 一种防掉螺杆钻具 An anti-off screw drill |
| 09/07/2011 | CN201960764U 一种耐蚀碳钢高温合金复合管 An anticorrosive steel superalloy composite pipe |
| 09/07/2011 | CN201959897U 一种石油套管接箍表面喷漆装置 A petroleum casing collar surface paint device |
| 09/07/2011 | CN1668940B Marking of pipe joints |
| 09/07/2011 | CN102177307A Auger boring machine |
| 09/07/2011 | CN102177306A Drilling out casing bits with other casing bits |
| 09/07/2011 | CN102174881A Method for drilling holes and protecting walls by plastic expansion casing pipe and special expansion casing pipe |
| 09/07/2011 | CN102174878A Special type oil well pipe with changed materials and structural layers at two ends and manufacturing method thereof |
| 09/07/2011 | CN101575947B High-strength high-toughness carbide-free bainite drill pipe and preparation method thereof |
| 09/07/2011 | CN101429845B Method for electric coal drill using electric hand drill bit by utilization of special-shaped drilling rod |
| 09/07/2011 | CN101117884B Boring tool drag reduction device |
| 09/06/2011 | US8011452 Steerable drilling system |
| 09/06/2011 | US8011446 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 09/06/2011 | US8011437 Wellbore method and apparatus for completion, production and injection |
| 09/06/2011 | US8011429 Transport assembly |
| 09/06/2011 | CA2654170C Downhole pressure balanced electrical connections |
| 09/01/2011 | WO2011106004A1 Pressure control device with remote orientation relative to a rig |
| 09/01/2011 | WO2011104629A1 Riser section connector with flanges and external locking ring |
| 09/01/2011 | WO2011104554A2 Clamping arrangement |
| 09/01/2011 | WO2011104279A2 Drilling system and method of operating a drilling system |
| 09/01/2011 | US20110209922 Casing end tool |
| 09/01/2011 | US20110209920 Insertion coupling for a boring rod assembly and a boring rod assembly |
| 09/01/2011 | US20110209878 Method for lightening a riser pipe with optimized wearing part |
| 09/01/2011 | US20110209651 Riser for Coil Tubing/Wire Line Injection |
| 09/01/2011 | DE102009013981B4 Abstandshalter Spacers |
| 09/01/2011 | CA2790102A1 Clamping arrangement |
| 09/01/2011 | CA2789934A1 Pressure-activated valve for hybrid coiled tubing jointed tubing tool string |
| 08/31/2011 | EP2362061A2 Oil and gas riser spider with low frequency antenna and corresponding method |
| 08/31/2011 | EP2153013B1 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig |
| 08/31/2011 | CN201953367U 井下钻孔钻压一体化分段压裂装置 Downhole drilling WOB staged fracturing device integration |
| 08/31/2011 | CN201953366U 管柱伸缩补偿器 Retractable string compensator |
| 08/31/2011 | CN201953322U 扶正导向装置 Righting guide |
| 08/31/2011 | CN201953321U Connecting pipe connector applied under mine |
| 08/31/2011 | CN201953320U 抽油杆防弯防扭伸缩旋转接头 Anti-telescoping rod bending anti-twist rotary joint |
| 08/31/2011 | CN201953319U 三角钻杆 Triangle drill |
| 08/31/2011 | CN201952802U 混凝土管桩桩孔清理工具 Concrete Pipe Piles cleanup tool |
| 08/31/2011 | CN102171502A Component for the drilling and for the exploitation of hydrocarbon wells |
| 08/31/2011 | CN102171409A Pipe section guide system with flexible member |
| 08/31/2011 | CN102168536A Underwater double-unlocking connector |
| 08/31/2011 | CN102168534A Special mining suction drill for coal mine |
| 08/31/2011 | CN102168531A Coupling predication method of outburst risk multivariate information of gas coal and gas |
| 08/31/2011 | CN102168530A Pressure drilling device for a drill stem and a using method thereof |
| 08/31/2011 | CN102168529A Bolt-driven double-cone locking piece type riser connector |
| 08/31/2011 | CN101182757B Sidetracking petroleum case pipe for petroleum natural gas mining industry |
| 08/30/2011 | US8006785 Casing and liner drilling bits and reamers |
| 08/30/2011 | US8006765 Well servicing tool storage system for subsea well intervention |
| 08/30/2011 | CA2651823C Reaming tool suitable for running on casing or liner and method of reaming |
| 08/30/2011 | CA2638289C Oil country tubular good for expansion in well and duplex stainless steel used for oil country tubular good for expansion |
| 08/30/2011 | CA2496098C Down hole motor with locking clutch |
| 08/25/2011 | WO2011103551A1 Coated sleeved oil and gas well production devices |
| 08/25/2011 | WO2011103270A2 Apparatus, system and method for releasing fluids from a subsea riser |
| 08/25/2011 | WO2011101554A2 Expansible threaded joint and method for making same |
| 08/25/2011 | US20110204143 Oil and Gas Riser Spider With Low Frequency Antenna Apparatus and Method |
| 08/25/2011 | US20110203853 Auger boring machine having spoils ejector |
| 08/25/2011 | US20110203848 Reverse Circulation Apparatus and Methods of Using Same |