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 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
11/2005
11/17/2005WO2005062764A3 Adjustable hole cleaning device
11/17/2005US20050254900 Multi-catenary type rising column
11/17/2005US20050252693 Securing arrangement for reamers in raise boring
11/17/2005US20050252687 Method and device for directional down-hole drilling
11/17/2005US20050252686 Electrically sequenced tractor
11/17/2005US20050252655 Roller subs
11/17/2005DE19619957B4 Rohre aus einer mit Polyurethanklebstoff gebundenen Feststoffschicht aus Quarzsand Pipes from a solid layer bonded with polyurethane glue from quartz sand
11/17/2005CA2565223A1 Tail fairing designed with features for suppression of vortices addition between fairings, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings
11/17/2005CA2564271A1 Tail fairing designed with features for fast installation, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings
11/16/2005EP1234091B1 Downhole device
11/16/2005CN2740763Y Anti-offset wear stabilizer of independent wear-resistant stripped sucker rod
11/16/2005CN2740762Y Stabilizer of energy-saving sucker rod
11/16/2005CN2740761Y Double layered air jetting sleeve head
11/16/2005CN2740760Y Anti-tripping device of sucker rod for spiral pump
11/16/2005CN1227469C Screw threaded joint for continuous-profile tubes
11/15/2005US6964306 Manifold device and method of use for accessing a casing annulus of a well
11/15/2005US6964300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
11/15/2005CA2321650C A mill and a method for milling
11/15/2005CA2309054C Flexible sinker bar assemblies
11/15/2005CA2305235C Apparatus for directional drilling
11/15/2005CA2162035C Preform or matrix tubular structure for well casing
11/10/2005WO2005106309A1 Expandable tubular connection
11/10/2005WO2005106184A1 Composite marine riser
11/10/2005WO2005105777A1 Substituted thiophene amide compounds for the treatment of inflammation
11/10/2005WO2005071211A3 Drill stem for deep drillings
11/10/2005US20050249558 Composite marine riser
11/10/2005US20050248154 Threaded connection for oil field applications
11/10/2005US20050248153 Threaded joint for steel pipes
11/10/2005US20050248151 Coiled tubing connector
11/10/2005US20050247453 Magnetic impulse applied sleeve method of forming a wellbore casing
11/10/2005DE102005005289A1 Downhole motor for drilling well bores, has housing operatively connectable at upper end to drilling string, shaft, and locking mechanism to selectively transmit torque from housing to shaft when engaged
11/10/2005CA2819998A1 Expandable tubular connection
11/10/2005CA2752209A1 Expandable tubular connection
11/09/2005EP1592910A2 Pressure relieved thread connection
11/09/2005EP1556576A4 Drill pipe having an internally coated electrical pathway
11/09/2005EP1516103B1 Multi-point high pressure seal for expandable tubular connections
11/09/2005EP1395731B1 Underwater pipeline connection joined to a riser
11/09/2005EP1078144B1 Hybrid pipe for great depth
11/09/2005CN2739345Y Flowmeter positioning centralising device
11/09/2005CN2739344Y Hydraulic stripper joint
11/09/2005CN2739343Y Long well section two-way hole-drawing device for well drilling
11/08/2005US6962347 Metal backup seal for undersea hydraulic coupling
11/08/2005US6962205 Subsea wellhead landing clamp and slip bowl assembly
11/08/2005CA2485840C Safeguarded method and apparatus for fluid communication using coiled tubing, with application to drill stem testing
11/08/2005CA2318563C Water soluble invert emulsions
11/08/2005CA2303710C Straight hole drilling system
11/08/2005CA2126027C Thread coupling for drill string elements for percussion drilling
11/03/2005WO2005103547A1 Tube connector and device for production of a tube connector
11/03/2005WO2005103437A1 Optical fiber equipped tubing and methods of making and using
11/03/2005WO2005103436A1 Marine riser tower
11/03/2005WO2005071224A3 Measuring device and drilling device for deep drillings
11/03/2005US20050242587 Thread protector
11/03/2005US20050242583 Coupling for drilling-with-casing operations
11/03/2005US20050242512 Sealing device
11/03/2005US20050241858 Apparatus and method for drilling and reaming a borehole
11/03/2005US20050241855 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
11/03/2005US20050241834 Tubing/casing connection for U-tube wells
11/03/2005US20050241832 Integrated buoyancy joint
11/03/2005US20050241822 Dual diameter and rotating centralizer/sub and method
11/03/2005US20050241821 System and method for well workover with horizontal tree
11/03/2005CA2562019A1 Optical fiber equipped tubing and methods of making and using
11/03/2005CA2505667A1 Tubing/casing connection for u-tube wells
11/02/2005EP1590515A2 Fast make-up fatigue resistant rotary shouldered connection
11/02/2005EP1159507B1 Method of making a conductive downhole wire line system
11/02/2005CN2737930Y Anti-bias wearing sucker rod
11/02/2005CN2737929Y External path non-coupling continuous oil pipe
11/02/2005CN2737928Y Double-screw sawtooth wear resisting drilling rod
11/01/2005US6960555 particulate, non-metallic, anti-seize agent (Calcium fluoride) and a resin of suspending agent, bonding agent, and thinning agent; protecting from seizing, galling, or failure
11/01/2005US6959763 Method and apparatus for integrated horizontal selective testing of wells
11/01/2005CA2343282C Centered-leg roller cone drill bit
11/01/2005CA2293795C Screw joint for oil well piping
11/01/2005CA2169544C Equipment to reduce torque on a drill string
10/2005
10/27/2005WO2005100744A1 Apparatus and method for dewatering low pressure gradient gas wells
10/27/2005WO2005100741A1 Method and system for starting up a pipeline
10/27/2005WO2005100736A2 Coupler and roof drill bit assembly using such coupler
10/27/2005WO2005100735A2 Self-contained centralizer system
10/27/2005WO2005100734A1 System and method for directional drilling utilizing clutch assembly
10/27/2005WO2005100733A1 A component used in the formation, construction, repair and production phase of a well bore and a method for identifying same
10/27/2005WO2005100732A1 A telescopic conductor casing for a well installation and a method of driving same into the underground
10/27/2005WO2005080742B1 Casing and liner drilling bits, cutting elements therefor, and methods of use
10/27/2005WO2005045174A3 Gravel pack completion with fiber optic monitoring
10/27/2005US20050236834 Expandable tubular connection
10/27/2005US20050236187 Drilling with casing
10/27/2005US20050236161 Optical fiber equipped tubing and methods of making and using
10/27/2005US20050236160 Loaded transducer for downhole drilling components
10/27/2005US20050236159 Threaded connection for expandable tubulars
10/27/2005CA2562891A1 A telescopic conductor casing for a well installation and a method of driving same into the underground
10/27/2005CA2562085A1 Apparatus and method for dewatering low pressure gradient gas wells
10/27/2005CA2561036A1 System and method for directional drilling utilizing clutch assembly
10/26/2005EP1588019A1 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
10/26/2005EP1588018A1 Data transmission system for a downhole component
10/26/2005EP1588016A1 Wellstring assembly
10/26/2005EP1250510B1 Seafloor-surface linking device comprising a stabilising element
10/26/2005EP1200704B1 Threaded pipe connection
10/26/2005EP1112434B1 Device for application of dope on male threads
10/26/2005EP0901560B1 Apparatus and a method for drilling boreholes
10/26/2005CN2736521Y Multifunctional casing centralizing turbulator
10/26/2005CN2736520Y Eccentric wear proof sinking bar
10/26/2005CN1688794A A measuring sonde for a hydrocarbon well
10/26/2005CN1688790A A method and device by a displacement tool
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