135308 ⎘
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Couplings; joints between rod and bit or between rod and rod Telescoping joints for varying drill string lengths; Shock absorbers
Gravel pack bypass assembly
#302Gravel pack inner string hydraulic locating device
#303Pressure joint
#304System and method for damping vibration in a drill string using a magnetorheological damper
#305Fill up tool
#306Auxiliary subsurface compensator
#307Drilling apparatus
#308KELLY FOR THE REALIZATION OF BORED PILES
#309Apparatus and method for setting a downhole anchor and related telescopic joint
#310Stress and torque reducing tool
#311Telescoping orientation joint
#312CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS
#313Casing and liner drilling shoes having spiral blade configurations, and related methods
#314Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods
#315Casing shoes having drillable and non-drillable cutting elements in different regions and related methods
#316Casing and liner drilling shoes having selected profile geometries, and related methods
#317Casing and liner drilling shoes having integrated operational components, and related methods
#318Method system and apparatus for reducing shock and drilling harmonic variation
#319Shock reduction tool for a downhole electronics package
#320Slip connection with adjustable pre-tensioning
#321Downhole assembly
#322Kelly bar arrangement
#323Bellows type adjustable casing
#324Vibration Damping Tool for Downhole Electronics
#325DOWNHOLE TELESCOPING TOOL WITH RADIALLY EXPANDABLE MEMBERS
#326Wellbore percussion adapter and tubular connection
#327Methods and apparatus for attenuating drillstring vibrations
#328Radial spring latch apparatus and methods for making and using same
#329Metal-to-metal annulus seal arrangement
#330Drilling tool with feed control
#331Wired slip joint
#332Method of protecting a top drive drilling assembly and a top drive drilling assembly modified in accordance with this method
#333System And Method For Drill String Vibration Control
#334Compaction tolerant basepipe for hydrocarbon production
#335Well Release System and Method
#336System and method for damping vibration in a drill string using a magnetorheological damper
#337Re-settable and anti-rotational contraction joint with control lines
#338Apparatus, system and method for motion compensation using wired drill pipe
#339Downhole vibration dampener
#340Recovering heated fluid using well equipment
#341Bellows type adjustable casing
#342System and method for providing a downhole mechanical energy absorber
#343Subsea drilling with casing
#344Downhole decelerating device, system and method
#345Stroker tool
#346COUPLING ARRANGEMENT FOR COUPLING ROCK DRILL SHANK
#347Expansion joint with communication medium bypass
#348Telescopic fracturing isolation sleeve
#349APPARATUS
#350Metal seal adjustable casing sub
#351Percussion drilling assembly having a floating feed tube
#352Strokable liner hanger and method
#353DOWNHOLE TUBULAR LENGTH COMPENSATING SYSTEM AND METHOD
#354Landing string compensator
#355Downhole shock absorber with crushable nose
#356Damping and drilling machine including such a damping device
#357Telescopic joint mini control panel
#358SYSTEM AND METHOD FOR DETECTING MOVEMENT IN WELL EQUIPMENT
#359EXPLOSIVE SHOCK DISSIPATER
#360Apparatus and method for ratcheting stimulation tool
#361Drill-string shock absorbers
#362Well tool with line and installation method
#363Down hole tool with adjustable fluid viscosity
#364DOWNHOLE SHOCK ABSORBER FOR TORSIONAL AND AXIAL LOADS
#365Stress and torque reducing tool
#366Device in Connection with Heave Compensation
#367Anti-surge/reverse thruster
#368Telescopic Conductor Casing for a Well Installation and a Method of Driving Same into the Underground
#369Multipart sliding joint for floating rig
#370Casing and liner drilling bits and reamers
#371Radial spring latch apparatus and methods for making and using same
#372Method and apparatus for wellbore construction and completion
#373Methods and apparatus for attenuating drillstring vibrations
#374Method and arrangement by a workover riser connection
#375Shape memory alloy vibration isolation device
#376Wellhead seal unit
#377Wellhead seal unit
#378Method and apparatus for supporting a downhole component in a downhole drilling tool
#379Laterally translatable data transmission apparatus
#380Device which is expandable to engage the interior of a tube
#381Upper-completion single trip system with hydraulic internal seal receptacle assembly
#382Seal
#383System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber
#384Internal shock absorber bypass plunger
#385Internal shock absorber plunger
#386DOWNHOLE TOOL SHOCK ABSORBER
#387Perforation alignment tool for jet drilling, perforating and cleaning
#388Recoverable, reinforced and vibration-damping plug used for cased wells
#389Vibration-dampening drill collar
#390Apparatus and method of drilling with casing
#391Bottom hole assembly
#392Providing a local response to a local condition in an oil well
#393Casing and liner drilling bits
#394Drilling with concentric strings of casing
#395Method and arrangement by a workover riser connection
#396Wellhead seal unit
#397Coupling for dual member pipe
#398Shock absorbing and shock force generating apparatus with shear pin for an oil pump and method therefor
#399Shock isolator for downhole well drilling
#400Multi-degree of freedom vibration isolator
#401Variable rate compliance modules, assemblies and tools for suppression of drilling vibrations
#402Drilling derrick and apparatus base assembly
#403Self-assembling segmented coiled tubing