Patents
Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198)
11/2012
11/14/2012CN202531056U Adjustable pipe rod rack buttress
11/14/2012CN202531055U Integrated type vehicle-mounted workover rig capable of operating with pressure
11/14/2012CN202531054U Friction reversing type pumping unit moving tool
11/14/2012CN102782244A A drilling installation
11/14/2012CN102777137A Centering and guide clamping integrated type power head
11/14/2012CN102777136A Power catwalk for lifting workover rig
11/14/2012CN101985873B Mechanical operation device for lifting and lowering oil tube of oil well
11/14/2012CN101881141B Hydraulic oil pipe installing and dismounting equipment
11/14/2012CN101832114B High-efficiency hydraulic twisting machine capable of staggering orifice
11/14/2012CN101787861B Special multi-joint torque control valve for oil pipe tongs
11/14/2012CN101730784B Disconnectable riser-mooring system
11/14/2012CN101484658B Coupling for dual member pipe
11/14/2012CN101451427B Drilling device and drilling method
11/13/2012US8307904 System and method for maintaining position of a wellbore servicing device within a wellbore
11/13/2012US8307889 Assembly for controlling annuli between tubulars
11/13/2012US8307888 Method and apparatus for removing casing
11/13/2012CA2643388C Flush mounted spider
11/12/2012DE202012010458U1 Steuergerät eines Bohrwerkzeugs und Bohreinheit Control device of a drilling tool and drilling unit
11/08/2012WO2012151148A2 Extended range single - joint elevator
11/08/2012WO2012151147A2 Floating spider
11/08/2012WO2012069822A3 Valve apparatus and improved ram
11/08/2012US20120279726 System and method for monitoring and controlling snubbing slips
11/08/2012DE102011100691A1 Bohrgerät und Verfahren zum Betreiben eines Bohrgeräts Drill and method of operating a drill
11/08/2012CA2834880A1 Extended range single-joint elevator
11/08/2012CA2834863A1 Floating spider
11/07/2012EP2520758A2 Drill and method for operating a drill
11/07/2012CN202520260U Sediment pressure-maintaining storage device matched with deep sea drilling machine
11/07/2012CN202520253U Oil field tubing slide rail clamping device
11/07/2012CN202520252U Suspended type self-adaptive automatic drill column racking device
11/07/2012CN202520251U Dual-cylinder air operated slip
11/07/2012CN202520250U Cam type holder
11/07/2012CN202520249U Front holder connected hydraulic chuck in two ways
11/07/2012CN202520248U Rod feeding system of drilling machine
11/07/2012CN102767361A Intelligent hydraulic cable hanger device and working method
11/07/2012CN102767358A System and method for monitoring and controlling snubbing slips
11/07/2012CN102767341A Novel drill pipe bracket for horizontal directional drilling machine
11/06/2012US8302677 Coiled tubing injector with a weight on bit circuit
11/06/2012CA2734361C Method for using retainer, and retainer
11/06/2012CA2673619C Umbilical termination assembly and launching system
11/06/2012CA2659602C A top drive apparatus for drilling a bore hole
11/05/2012CA2775990A1 System and method for monitoring and controlling snubbing slips
11/05/2012CA2739280A1 System and method for monitoring and controlling snubbing slips
11/01/2012WO2012149318A2 Expansion system for an expandable tubular assembly
11/01/2012WO2012148956A2 Flange overshot retrieval tool
11/01/2012WO2012148807A2 Mechanically actuated casing drive system tool
11/01/2012WO2012148289A1 Backup heave compensation system and lifting arrangement for a floating drilling vessel
11/01/2012WO2012148287A1 Device and method for transfer of objects to and from an unmanned installation area
11/01/2012WO2012148286A1 Pipe handling machine
11/01/2012WO2012148285A1 Pipe handling device
11/01/2012WO2012148284A1 Auxiliary arm for drilling equipment
11/01/2012WO2012146622A1 Vessel comprising a moon pool and a hoisting arrangement and method of lowering items into the sea
11/01/2012WO2012146053A1 Guide device for coiled tubing
11/01/2012WO2012091560A9 Tubular installation system and method
11/01/2012WO2012048180A8 Electrically driven coiled tubing injector assembly
11/01/2012US20120275882 Raise-Assist and Smart Energy System for a Pipe Handling Apparatus
11/01/2012US20120273279 Core Barrel and Related Drilling Apparatus and Method
11/01/2012US20120273237 Expansion system for an expandable tubular assembly
11/01/2012US20120273233 Drill string components resistant to jamming
11/01/2012US20120273232 Mechanically actuated casing drive system tool
11/01/2012US20120273230 Automated systems and methods for make-up and break-out of tubulars
11/01/2012US20120272792 Power tong
11/01/2012CA2833882A1 Expansion system for an expandable tubular assembly
11/01/2012CA2831226A1 Backup heave compensation system and lifting arrangement for a floating drilling vessel
10/2012
10/31/2012EP2516792A2 Rigless low volume pump system
10/31/2012EP2516789A1 Drilling a borehole and hybrid drill string
10/31/2012CN202510717U Rubber sleeve for all-hydraulic drill chuck in coal mine
10/31/2012CN202510066U Flush casing lifting sub centering device
10/31/2012CN202510065U Clamping tool for drill pipe of small-aperture drilling machine
10/31/2012CN202510064U Drilling machine drill rod lower guide mechanism
10/31/2012CN202510063U Dematron drilling machine centring mechanism
10/31/2012CN202510062U Drill stem overturning mechanism for horizontal directional drilling
10/31/2012CN202510061U Drill pipe clamping mechanism for horizontal directional drilling rig
10/31/2012CN202510060U Conveying device for hydraulic drilling tool
10/31/2012CN202510059U Liquid-operated folio slip device for drill machine
10/31/2012CN202510058U Adjustable underwater combination pipe clamp device
10/31/2012CN202510057U Dropping-preventing beam hanger
10/31/2012CN202510056U Beam hanger twist-prevention device of oil pumping machine
10/31/2012CN202510055U Lifting wire of drilling tool
10/31/2012CN202510054U Clamper for automatically rod changing device and automatically rod changing device using same
10/31/2012CN202510053U Self-propelled electric workover rig with capacitor stored energy
10/31/2012CN202510049U Polish rod centring device
10/31/2012CN202510026U Linkage hydraulic system for coal mine all-hydraulic drill
10/31/2012CN102758592A Oil tube arrangement device
10/31/2012CN102758591A Screw-on guider for coiled tubing drilling tool
10/31/2012CN102756952A Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine
10/30/2012US8297886 Drilling rig
10/30/2012US8297366 Installable load shoulder for a wellhead
10/30/2012US8297361 Sea bed oil recovery system
10/30/2012US8297348 Seal configuration for top drive swivel apparatus and method
10/30/2012US8297347 Method of controlling torque applied to a tubular connection
10/29/2012CA2775856A1 Bearing assembly
10/26/2012WO2012145160A2 Galvanically isolated exit joint for well junction
10/26/2012WO2012143063A1 Connecting device for a drilling and impact mechanism of a tap hole drill, and tap hole drill having a connecting device
10/26/2012WO2012092029A3 Drill rod guide
10/26/2012CA2831635A1 Galvanically isolated exit joint for well junction
10/25/2012US20120267117 Device for a Safety Connector for a Pipe String Suspension
10/25/2012US20120267116 Flange overshot retrieval tool
10/24/2012EP2514843A1 Connection device for a drilling and impact mechanism of a tap hole drilling machine and tap hole drilling machine with connection device
10/24/2012EP2513537A1 Device for supporting the connection tip of flexible pipe in an offshore facility
10/24/2012EP2513410A2 Apparatus and method to support a tubular member
1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ... 172