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)
05/1996
05/15/1996EP0578656B1 Rotary for use in a power tong
05/15/1996DE4440550A1 Device for inserting probe into bore hole
05/15/1996CN1122405A Binding method and adhesive for rope clamp of oil pumping unit
05/09/1996DE19540427A1 Vorrichtung zum Speichern und Handhaben einer Stange aus Verbundmaterial Apparatus for storing and manipulating a rod made of composite material
04/1996
04/30/1996US5511614 Hydraulic system for servicing water pumps in wells
04/24/1996EP0708226A2 A brake for a hoisting apparatus
04/24/1996CN2225536Y Fixing clamp for rope hanging device
04/23/1996US5509316 System for measuring the torque applied to a threaded connection between sections of oilfield pipe
04/18/1996WO1996011322A1 No load derrick for drilling rig
04/17/1996EP0706605A1 Drill pipe handling
04/16/1996US5507354 Post hole digger
04/13/1996CA2117968A1 Resilient hoisting plug for drill rods and the like
04/10/1996EP0705378A1 Equipment for handling drill rods
04/09/1996US5505565 Apparatus for making up threaded pipe joints into a pipeline
04/02/1996US5503234 Drill rig
03/1996
03/26/1996US5501286 Method and apparatus for displacing a top drive torque track
03/21/1996WO1996008634A1 Pressurized sheave mechanism for high pressure wireline service
03/20/1996EP0701531A1 Apparatus for gripping a down hole tubular
03/20/1996CN1031336C Elevator for oil extracting ship
03/20/1996CN1031335C Method and system for conducting offshore well operations
03/19/1996CA2084852C System for making up or breaking out threaded joints of pipe
03/19/1996CA2055007C Method of and apparatus for running a wireline to a steering tool coupled with a downhole mud motor
03/17/1996WO1996008633A1 A device for coil tubing operations
03/08/1996CA2131614A1 Well casing alignment apparatus
03/07/1996WO1996007014A1 Arrangement for mounting swing cylinders in boom for rock drilling unit
03/07/1996WO1996007013A1 Arrangement in boom for rock drilling unit
03/07/1996WO1996007012A1 Arrangement for controlling boom for rock drilling unit
03/05/1996US5495755 Slick line system with real-time surface display
02/1996
02/29/1996DE4430245A1 Pressure dividing cylinder group for hydraulic systems
02/20/1996CA1338064C Ground anchor installing apparatus
02/19/1996EP0706605A4 Drill pipe handling
02/13/1996CA2140085A1 Grease applicator for a drill shaft
02/06/1996US5488992 Spoolable flexible sliding sleeve
02/06/1996CA2055030C Mobile drilling rig for closely spaced well centers
01/1996
01/31/1996EP0694675A1 Fixing and clamping tensioning device for a tow rope connected to a boring ram
01/31/1996EP0694115A1 Drilling arrangement and drilling feed mechanism
01/31/1996EP0694112A1 Rock drill
01/23/1996US5486070 Method for conducting offshore well operations
01/17/1996EP0692608A1 Procedure for evaluating the friction characteristics of a shouldered threaded connection
01/17/1996EP0692064A1 Rod cartridge for a rock drilling equipment
01/17/1996EP0692063A1 Gripping arm for a rock drilling equipment or the like provided with a cartridge for rods
01/16/1996US5484222 Apparatus for gripping a pipe
01/16/1996US5484040 Slip-type gripping assembly
01/16/1996CA2055031C Method and apparatus for controlling the transfer of tubular members into a shelter
01/10/1996CN2217100Y Device for automatically adjusting rod stroke
01/09/1996US5482406 Variable spring rate compression element and riser tensioner system using the same
01/04/1996WO1996000359A1 Device for laying flexible conduits from a floating support
01/03/1996CN2216586Y Upper, lower drill floor for drill
01/02/1996US5480266 Tensioned riser compliant tower
01/02/1996US5479990 Rising centralizing spider
12/1995
12/19/1995US5476148 Tool for maintaining wellbore penetration
12/13/1995EP0578654B1 Tong
12/13/1995EP0558741B1 Device associated with flexible riser
12/12/1995CA2019635C Overcenter valve control system and method for drilling
12/12/1995CA2018826C Detachable torque transmitting tool joint
12/06/1995EP0685631A1 Holding device for supporting drilling rods
12/06/1995EP0685630A2 Mounting apparatus for dual drill pipe
11/1995
11/29/1995CN2213836Y Callipers device for mouse hole
11/21/1995US5468121 Apparatus and method for positioning drill pipe in a mousehole
11/21/1995US5467833 System for lifting tubulars and equipment below the main deck of platforms
11/15/1995EP0578657B1 Power tong for releasing tight joints
11/15/1995CN2212654Y Bidirectional half-arc oil pipeline slipway clamp
11/14/1995US5465793 Spoolable flexible hydraulic controlled annular control valve
11/09/1995DE4415945A1 Hydraulic-pneumatic installation for vehicle or machinery
11/08/1995CN2212071Y Anti-slip safety crane clip pin
11/08/1995CN2212070Y Safety pin of crane clip
11/08/1995CN2212069Y Self holding hydraulic clamp support rack of working machine
11/08/1995CN1111317A Coiled well screen
10/1995
10/26/1995WO1995028549A1 Arrangement in a hydraulically operated rock drilling equipment
10/26/1995WO1995028316A1 A device for oil production at great depths at sea
10/26/1995CA2187630A1 Arrangement in a hydraulically operated rock drilling equipment
10/18/1995CN2210246Y Hydraulic apparatus for lifting well tube
10/17/1995US5458454 Tubular handling method
10/17/1995US5458207 Method and an equipment for adjusting rock drilling
10/10/1995US5456325 Method and apparatus for driving a probe into the earth
10/03/1995US5454419 Method for lining a casing
09/1995
09/27/1995EP0674095A2 Well screen with coiled element
09/27/1995EP0674094A1 Running downhole tools with coiled tubing
09/26/1995US5452923 Coiled tubing connector
09/26/1995CA2073203C Power tong for making up or breaking out threaded joints of pipe
09/21/1995WO1995025216A1 Manipulator-arm for auxiliary-tool for the joining of drillpipe
09/20/1995CN2208094Y Fast smooth rod clamp
09/19/1995US5451129 Pipe transfer system
09/19/1995US5451084 Insert for use in slips
09/06/1995EP0548303B1 Method for continuing a measuring operation after recovering a measuring instrument stuck in a well
09/05/1995US5447392 Backspan stress joint
08/1995
08/31/1995WO1995023276A1 Arrangement and method for controlling boom actuating cylinders in rock drilling equipment
08/31/1995CA2183970A1 Arrangement and method for controlling boom actuating cylinders in rock drilling equipment
08/30/1995EP0455685B1 System to control a motor for the assembly or dis-assembly of two members
08/17/1995DE4412776C1 Supporting unit to grip and feed the drill string of a boring tool
08/08/1995US5439321 Interruptive mobile production system
08/08/1995US5439066 Method and system for downhole redirection of a borehole
08/03/1995WO1995020471A1 Power tong wrench
08/02/1995CN2204331Y Multi-clip clamping device
08/01/1995US5437527 Arrangement in a pipe handling system
07/1995
07/25/1995US5435395 Method for running downhole tools and devices with coiled tubing
07/25/1995US5435213 Ring gear camming member
07/19/1995EP0487614B1 Friction grip for tubular goods
07/18/1995US5433423 Elastomeric strut for an elastomeric riser tensioner
07/18/1995US5433128 Sucker rod coupling tool and method