| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 08/14/2008 | WO2008096170A1 A method for recovering fluid used in powering an underwater apparatus submerged in deep water |
| 08/14/2008 | WO2008096142A1 Downhole apparatus and method |
| 08/14/2008 | WO2007053328A3 A seal for use with pipe and flange assemblies |
| 08/14/2008 | US20080191420 Insert seal unit and method for making the same |
| 08/14/2008 | US20080190621 Locking cap for subsea tree |
| 08/14/2008 | US20080190616 Apparatus for Radially Expanding and Plastically Deforming a Tubular Member |
| 08/14/2008 | US20080190614 Silicate-based wellbore fluid and methods for stabilizing unconsolidated formations |
| 08/14/2008 | US20080190613 Methods for actuating a downhole tool |
| 08/14/2008 | US20080190612 Method and a Device for in Situ Formation of a Seal in an Annulus in a Well |
| 08/14/2008 | US20080190611 Systems for actuating a downhole tool |
| 08/14/2008 | US20080190606 In-situ method of producing oil shale, on-shore and off-shore |
| 08/14/2008 | US20080190600 Drillable bridge plug |
| 08/14/2008 | US20080190599 Packless stuffing box annular seal assembly |
| 08/14/2008 | CA2765193A1 Swellable packer with enhanced sealing capability |
| 08/14/2008 | CA2677289A1 Wellhead system and connector for wellheads |
| 08/14/2008 | CA2677157A1 Downhole swelling member with fluid supply assembly |
| 08/14/2008 | CA2675260A1 A method for recovering fluid from an underwater apparatus submerged in deep water |
| 08/13/2008 | EP1642001B1 Removable seal carrier for blowout preventer bonnet assembly |
| 08/13/2008 | CN201100114Y Under-water base tray installation guiding device for spraying preventer |
| 08/13/2008 | CN201100113Y A convenient dual rotation acentric well-mouth device |
| 08/13/2008 | CN101243239A Pipe running tool having a cement path |
| 08/12/2008 | US7410013 Boring and drilling apparatus |
| 08/12/2008 | US7410003 Dual purpose blow out preventer |
| 08/12/2008 | US7410002 Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device |
| 08/12/2008 | US7410001 Coupling and sealing tubulars in a bore |
| 08/12/2008 | US7409991 Methods of using casing strings in subterranean cementing operations |
| 08/12/2008 | US7409990 Downhole mixing of encapsulated plug components for abandoning a well |
| 08/12/2008 | US7409988 Blowout preventer packing element with non-metallic composite inserts |
| 08/12/2008 | CA2532907C One-position fill-up and circulating tool |
| 08/12/2008 | CA2504297C Gravity valve for a downhole tool |
| 08/12/2008 | CA2428165C Inserting flow diverter through tree cap |
| 08/12/2008 | CA2299580C Live well deployment of electrical submersible pump |
| 08/12/2008 | CA2164774C Retrievable through tubing tool and method |
| 08/07/2008 | WO2008076567A3 Apparatus and method for processing fluids from a well |
| 08/07/2008 | WO2008076565A3 Apparatus and method for processing fluids from a well |
| 08/07/2008 | WO2008069914A3 Oil well stage-cementing metal plate |
| 08/07/2008 | WO2008060297A3 Well tool including swellable material and integrated fluid for initiating swelling |
| 08/07/2008 | WO2008036709A3 Apparatus and method for packaging rotary drill bits |
| 08/07/2008 | US20080185158 Swellable packer with enhanced sealing capability |
| 08/07/2008 | US20080185156 Wellhead system and connector for wellheads |
| 08/06/2008 | EP1951989A1 Oil-based insulating packer fluid |
| 08/06/2008 | EP1951986A2 Apparatus and method for managed pressure drilling |
| 08/06/2008 | CN201095977Y Gas lift pipe column for hot washing protective oil layer and no-killing operation |
| 08/06/2008 | CN201095973Y Spring resetting self locking type floating hoop |
| 08/06/2008 | CN201095972Y Heavy pressure fracturing packer |
| 08/06/2008 | CN201095971Y Multi-effect thermal automatic setting steam-injection packer |
| 08/06/2008 | CN201095970Y Packer preventing refluence of injected water |
| 08/06/2008 | CN201095969Y Fracturing packer |
| 08/06/2008 | CN201095968Y Slips type casing tube buckle connected simple casing head |
| 08/06/2008 | CN201095964Y Jet-proof anchoring equipment |
| 08/06/2008 | CN101238269A Rod lock for ram blowout preventer |
| 08/05/2008 | US7407011 Tubing annulus plug valve |
| 08/05/2008 | US7407010 Methods of coating particulates |
| 08/05/2008 | US7407009 Methods of using cement compositions comprising phosphate compounds in subterranean formations |
| 08/05/2008 | CA2528308C Removable seal carrier for blowout preventer bonnet assembly |
| 08/05/2008 | CA2482290C Cement-through, tubing-retrievable safety valve |
| 08/05/2008 | CA2421500C Hydrocarbon swelling well packing |
| 08/05/2008 | CA2349188C Wellbore system including a conduit and an expandable device |
| 07/31/2008 | WO2008090515A1 Downhole preparation and use of thixotropic cement slurries |
| 07/31/2008 | WO2006001974A3 Pressure monitoring of control lines for tool position feedback |
| 07/31/2008 | US20080179560 Sucker rod pump with improved ball and seat |
| 07/31/2008 | US20080179065 Completion liner delivery method with bridge plug capture |
| 07/31/2008 | US20080179059 Providing a thixotropic cement slurry to a zone of a wellbore in a subterranean formation penetrated by wellbore comprising introducing a thixotropic agent into the well through a tubular member; cleaning out agent residue from interior; adding cement slurry; rapid gelation of downhole cement slurry |
| 07/31/2008 | US20080179058 Top drive swivel apparatus and method |
| 07/31/2008 | US20080179055 Flow Control Packer (FCP) And Aquifer Storage And Recovery (ASR) System |
| 07/31/2008 | CA2676526A1 Downhole preparation and use of thixotropic cement slurries |
| 07/31/2008 | CA2578643A1 Heating apparatus for heating operating equipment at remote sites |
| 07/30/2008 | EP1948903A1 Controlling pressure and static charge within a wellbore |
| 07/30/2008 | EP1948902A2 Controlling the pressure within an annular volume of a wellbore |
| 07/30/2008 | EP1680573B1 Expandable wellbore assembly |
| 07/30/2008 | EP1587598A4 Polyether polyesters having anionic functionality |
| 07/30/2008 | EP1534644A4 Well cementing compositions and methods |
| 07/30/2008 | CN201092846Y Casing deformation well bridge plug |
| 07/30/2008 | CN201092845Y Hydraulic pressure, double back-off hand type dragable bridge plug |
| 07/30/2008 | CN201092844Y Mechanical bridge packer |
| 07/30/2008 | CN201092843Y Water-shutoff technique tubular pile of gas injection well |
| 07/30/2008 | CN201092842Y Balanced type classification desterilizing packer |
| 07/30/2008 | CN201092841Y Fracturing packer for sleeve change well |
| 07/30/2008 | CN201092840Y Buoyant device for deepwater drilling subaqueous blowout preventer |
| 07/30/2008 | CN201092839Y Sealing strengthen device for oil pumping well head |
| 07/30/2008 | CN201092838Y Cuneiform contractile ring well mouth sealing device |
| 07/30/2008 | CN201092833Y Device for rapidly adding disk root |
| 07/30/2008 | CN201092832Y Portable closing session root machine |
| 07/30/2008 | CN201092825Y Deepwater drilling device containing automatically righting subaqueous blowout preventer |
| 07/30/2008 | CN101230778A Technique of gas drilling post-infusion cement slurry |
| 07/29/2008 | US7405182 Composition for decreasing lost circulation during well operation |
| 07/29/2008 | US7404440 Methods of using casing strings in subterranean cementing operations |
| 07/29/2008 | US7404437 Annular isolators for expandable tubulars in wellbores |
| 07/29/2008 | CA2544657C Zonal isolation tools and methods of use |
| 07/29/2008 | CA2517111C Drilling rig floor drainage system |
| 07/29/2008 | CA2341119C Methods and associated apparatus for drilling and completing a wellbore junction |
| 07/29/2008 | CA2148558C Process and fluid used in a well - application to drilling |
| 07/24/2008 | WO2008089115A1 Split body swelling packer |
| 07/24/2008 | WO2008089038A1 Wellhead assembly and method for an injection tubing string |
| 07/24/2008 | WO2008088553A2 Metal to metal seal for downhole tools |
| 07/24/2008 | WO2008087446A1 Improved shoe for wellbore lining tubing |
| 07/24/2008 | US20080173446 Method and Device For Fluid Displacement |
| 07/24/2008 | CA2675667A1 Improved shoe for wellbore lining tubing |
| 07/23/2008 | EP1807603B1 Casing strings and methods of using such strings in subterranean cementing operations |
| 07/23/2008 | CN201090737Y Biconical seal rubber ring |