E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
08/2009
08/27/2009	US20090211748 Device for Conducting Cementing Operations and Inflow Regulation
08/27/2009	CA2827026A1 A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
08/27/2009	CA2821318A1 Tubing expander with plural elastomeric sections
08/27/2009	CA2716209A1 A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
08/27/2009	CA2715647A1 Expandable packer
08/27/2009	CA2715149A1 Polymeric microspheres as degradable fluid loss additives in oilfield applications
08/27/2009	CA2654489A1 Swellable packer, methods of manufacture and use
08/27/2009	CA2654407A1 Swellable packer, methods of manufacture and use
08/26/2009	EP2092156A2 Casing expansion and formation compression for permeability plane orientation
08/26/2009	CN201297154Y Oil well blocking device
08/26/2009	CN201297153Y Releasing blocking-device
08/26/2009	CN201297152Y Layering packer used for chemical water plugging of oil well
08/26/2009	CN201297151Y Switching type drilling tool blowout preventer
08/26/2009	CN201297150Y Multifunctional triple ram preventer
08/26/2009	CN201297144Y Device for flushing pumping well
08/26/2009	CN101517196A Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers
08/26/2009	CN101517193A Method of designing blowout preventer seal using finite element analysis
08/26/2009	CN101517192A Pressure energized radial seal
08/26/2009	CN101514619A Novel direct circulation well cementing device and well cementing method for high-pressure gas underground gas storage well
08/26/2009	CN101514618A Casing packer
08/26/2009	CN101514617A Design method of blowout control box sealed by expanding rubber plug
08/26/2009	CN101514616A Low pre-tightening force adjustable heat extraction packing box
08/26/2009	CN101514615A No-power consumption and non maintenance well-head sealer
08/26/2009	CN101514613A Extension hanger
08/25/2009	US7578354 Device and method to seal boreholes
08/25/2009	US7578349 Lightweight and compact subsea intervention package and method
08/25/2009	US7578347 Method of sealing an annular space in a wellbore
08/25/2009	US7578342 Inflatable packer assembly
08/25/2009	CA2442186C Liquid separation device for a pipe
08/22/2009	CA2655512A1 Stuffing box apparatus
08/20/2009	WO2009102709A2 Radially supported seal and method
08/20/2009	WO2009102703A2 Self adjusting debris excluder sub
08/20/2009	WO2009102701A2 Expandable downhole actuator, method of making and method of actuating
08/20/2009	WO2009102601A2 Angled-penetrator device and system
08/20/2009	WO2009102214A1 Device for injection and stimulation of fluids in a well bore
08/20/2009	WO2009100914A2 Arrangement system
08/20/2009	WO2009019483A3 Downhole tool with slip elements having a friction surface
08/20/2009	US20090205843 Expandable packer
08/20/2009	US20090205842 On-site assemblable packer element for downwell packing system
08/20/2009	US20090205841 Downwell system with activatable swellable packer
08/20/2009	US20090205838 Wellbore continuous circulation systems
08/20/2009	US20090205837 Hydraulic connector apparatuses and methods of use with downhole tubulars
08/20/2009	US20090205836 Hydraulic connector apparatuses and methods of use with downhole tubulars
08/20/2009	US20090205833 Thermal activation mechanisms for use in oilfield applications
08/20/2009	US20090205831 Method and tool for unblocking a control line
08/20/2009	US20090205830 Methods and compositions for stabilizing formation fines and sand
08/20/2009	US20090205829 Polymeric Microspheres as Degradable Fluid Loss Additives in Oilfield Applications
08/20/2009	US20090205828 Production and Delivery of a Fluid Mixture to an Annular Volume of a Wellbore
08/20/2009	US20090205827 Hydraulic connector apparatuses and methods of use with downhole tubulars
08/20/2009	US20090205824 Polymeric Microspheres As Degradable Fluid Loss Additives In Oilfield Applications
08/20/2009	US20090205818 Downwell system with swellable packer including blowing agent
08/20/2009	US20090205817 Downwell system with differentially swellable packer
08/20/2009	US20090205816 Downwell system with swellable packer element and composition for same
08/20/2009	CA2715904A1 Self adjusting debris excluder sub
08/20/2009	CA2715574A1 Expandable downhole actuator, method of making and method of actuating
08/20/2009	CA2713230A1 Device for injection and stimulation of fluids in a well bore
08/20/2009	CA2712829A1 Angled-penetrator device and system
08/19/2009	CN201292826Y Controllable zonal injection, oil production and water-shutoff multifunction apparatus
08/19/2009	CN201292819Y Simple floating hoop for well drilling completion
08/19/2009	CN201292818Y Integral hydraulic cement basket
08/19/2009	CN201292817Y Drilling pipe-fixing water stopping cement pouring machine
08/19/2009	CN201292816Y Self-pouring sliding bush closing type cementing machine
08/19/2009	CN201292815Y Floating shoes for cementing oil well
08/19/2009	CN201292814Y Double-acting differential pressure type floating hoop
08/19/2009	CN201292813Y Upper-fixing and lower-hanging type well completion cementing controllable switch
08/19/2009	CN201292812Y Porous pump for cement tanker
08/19/2009	CN201292811Y Novel expanding packer
08/19/2009	CN201292810Y Novel slip packer
08/19/2009	CN201292809Y Water faucet for adjustable plugging device
08/19/2009	CN201292808Y Thickening cam for adjustable packer
08/19/2009	CN201292807Y Adaptation connector connecting structure for enhancing adjustable packer throwing casting and dragging longevity
08/19/2009	CN201292806Y Anti-clamp structure of adjustable packer
08/19/2009	CN201292805Y Split adjustable packer casing
08/19/2009	CN201292804Y Rotation-proof apparatus for adjustable packer
08/19/2009	CN201292803Y Cam screw mounting structure of adjustable packer
08/19/2009	CN201292802Y Adjustable packer with graduation
08/19/2009	CN201292801Y Suspension type oil layer protection packer
08/19/2009	CN201292800Y Six-grade branch well window sealing mechanism
08/19/2009	CN201292799Y Striker structure for wellhead connector
08/19/2009	CN201292798Y Gas well pumping liquor drainage wellhead self-compensating sealer
08/19/2009	CN201292797Y Anti-pollution apparatus for lever rising work
08/19/2009	CN201292796Y Oil gas well blowout seal apparatus
08/19/2009	CN201292795Y Gusher paraffin removal bulkhead anti-dropping press cap
08/19/2009	CN201292792Y Inside tube column positioning tools
08/19/2009	CN201292784Y Sleeve pipe floatage coupling
08/19/2009	CN101509361A Remediable scale scraping packer
08/19/2009	CN101509360A Multi-base fast-assembling wellhead apparatus
08/18/2009	US7576042 premixing latex and stabilizer to form a homogeneous solution before feeding into wellbore; anticoagulants for latex; nonylphenol ethoxylated polyethers or ethylene oxide alkylphenol adduct, or ethoxylate sulfate anionic polymers; stabilizing the sealant solution
08/18/2009	US7575062 Methods and devices for treating multiple-interval well bores
08/18/2009	US7575055 Storable nonaqueous cement slurries and methods of using same
08/18/2009	US7575048 Drive for a rotating chemical dispensing apparatus
08/18/2009	CA2408312C Composition and method for recovering hydrocarbon fluids from a subterranean reservoir
08/13/2009	WO2009100046A1 Ram bop position sensor
08/13/2009	WO2009099946A2 Variable bore packer for a blowout preventer
08/13/2009	WO2009098467A1 Downhole seal
08/13/2009	WO2009098465A1 Downhole seal
08/13/2009	WO2009061768A3 Self-energizing annular seal
08/13/2009	WO2009061211A3 Riser system comprising pressure control means
08/13/2009	WO2009055164A3 Seal system and method
08/13/2009	US20090200747 Breech lock stripper rubber pot mounting structure and well drilling equipment comprising same

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