Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
08/2003
08/26/2003US6609567 Tubing hanger with lateral feed-through connection
08/21/2003WO2003069117A1 Fracturing port collar for wellbore pack-off system
08/21/2003WO2003069112A1 Wellhead seal unit
08/21/2003US20030155152 Method of conducting in situ measurements of properties of a reservoir fluid
08/21/2003US20030155127 Intervention device for a subsea well, and method and cable for use with the device
08/21/2003US20030155126 Tubing annulus communication for vertical flow subsea well
08/21/2003US20030155115 Ball dropping assembly
08/21/2003US20030155114 Ball dropping assembly
08/20/2003EP1336721A2 Tubing head seal assembly
08/20/2003EP1336027A1 Apparatus for the connection of hydraulic conduits
08/20/2003EP0963504B1 Inflatable downhole seal
08/20/2003CN2567337Y Tool for sealing in borehole
08/20/2003CN2567336Y Multifunction well head device
08/20/2003CN1437674A System for creating conduit in a borehole formed in an earth formation
08/14/2003WO2003067135A2 Externally actuated subsea wellhead tieback connector
08/14/2003WO2003067027A1 Liner top test packer
08/14/2003WO2003067024A1 Tubing hanger with ball valve in the annulus bore
08/14/2003WO2003067020A2 Flowline jumper for subsea well
08/14/2003WO2003067017A2 Plug installation system for deep water subsea wells
08/14/2003US20030151254 Torus type connector
08/14/2003US20030150731 Subsea production system
08/14/2003US20030150620 Tubing hanger with ball valve in the annulus bore
08/14/2003US20030150614 Canister, sealing method and composition for sealing a borehole
08/14/2003US20030150607 Torsional resistant slip mechanism and method
08/13/2003EP1333963A2 Apparatus and methods for separating and joining tubulars in a wellbore
08/13/2003EP1171684B1 Downhole device for controlling fluid flow in a well
08/13/2003EP1127208B1 Remotely controlled assembly for wellbore flow diverter and method for handling
08/13/2003CN2565975Y Forced desealing back-off packer
08/12/2003US6604763 Expandable connector
08/12/2003CA2391732C Production tubing joint
08/07/2003WO2003064810A1 Plug-dropping container for releasing a plug into a wellbore
08/07/2003WO2003064809A1 A triggering mechanism for disconnecting a riser from a riser connector
08/07/2003WO2003064803A2 A riser connector
08/07/2003US20030146219 Apparatus
08/07/2003US20030146003 Bore isolation
08/07/2003US20030146000 Plug installation system for deep water subsea wells
08/07/2003US20030145999 Subsea completion annulus monitoring and bleed down system
08/07/2003US20030145998 Flowline jumper for subsea well
08/07/2003US20030145997 Flowline jumper for subsea well
08/07/2003US20030145996 Externally actuated subsea wellhead tieback connector
08/07/2003US20030145995 Riser connector
08/07/2003US20030145994 Device for installation and flow test of subsea completions
08/06/2003EP1332274A1 Recovery of production fluids from an oil or gas well
08/06/2003EP1332271A2 Transport and supply frame for bop assembly
08/06/2003CN2564738Y Well head sealer
08/06/2003CN2564737Y Blowout prevention regulating well head device
08/05/2003US6601650 Method and apparatus for replacing BOP with gate valve
08/05/2003CA2191512C Process for reducing permeability in a subterranean formation
08/05/2003CA2169382C Method and apparatus for use in inflating packer in well bore
07/2003
07/31/2003WO2003062593A1 Inflatable packing element
07/31/2003WO2003062584A2 Method of landing items at a well location
07/31/2003US20030141671 Metal-to-metal sealing system
07/31/2003US20030141079 Expandable packer with anchoring feature
07/31/2003US20030141077 Subsea protective covering
07/31/2003US20030141072 Choke valve with pressure transmitters
07/31/2003US20030141071 Slim-bore tubing hanger
07/31/2003US20030141055 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
07/31/2003US20030141052 Plug-dropping container for releasing a plug into a wellbore
07/30/2003EP1330591A1 Two-stage downhole packer
07/30/2003EP1330590A1 Continuous circulation drilling method
07/30/2003EP1066449B1 Rotating connector with compensating unit
07/30/2003EP0910725B1 Wellbores utilizing fiber optic-based sensors and operating devices
07/30/2003CN2563298Y Fishing type hollow bridging plug
07/30/2003CN2563297Y Water distribution packer
07/30/2003CN2563296Y Pressure reducing seat seal packer
07/30/2003CN2563295Y Slip water distribution packer
07/30/2003CN2563294Y Integrated double stage casing head
07/30/2003CN2563293Y Casing blanking plug for hydraulic changing valve with pressure
07/30/2003CN2563292Y Oil pipe blanking plug for hydraulic changing valve with pressure
07/30/2003CN1116496C Oil recovery technique combining chemical handing with water blocking in oil well
07/29/2003US6598680 Subsea wellhead equipment
07/29/2003US6598678 Apparatus and methods for separating and joining tubulars in a wellbore
07/29/2003US6598677 Hanging liners by pipe expansion
07/29/2003US6598673 Wellhead load ring
07/29/2003US6598672 Anti-extrusion device for downhole applications
07/29/2003CA2060592C Casing hanger seal assembly
07/29/2003CA2059115C Supported-lip low interference metal stab seal
07/24/2003WO2003060289A1 Bore isolation
07/24/2003WO2003060288A1 Riser control device
07/24/2003WO2003060281A2 Stacked borehole packer modules
07/24/2003WO2003060279A2 Ported subsea wellhead
07/24/2003US20030136927 Pressure balanced choke & kill connector
07/24/2003US20030136561 Straddle
07/24/2003US20030136556 Tubing hanger and adapter assembly
07/23/2003EP1329587A2 An apparatus for retaining two strings of tubulars
07/23/2003EP1019614A4 Casing filling and circulating apparatus
07/23/2003EP0885344B1 Method of removing wellhead assemblies
07/23/2003CN2561920Y Multifunctional blowout preventer
07/23/2003CN2561919Y Multifunctional capping
07/23/2003CN2561918Y Sucking polish rod stuffing box against off abrasion
07/23/2003CN2561917Y Translational polish rod sealer
07/23/2003CN1432096A Method and system for reducing longitudinal fluid flow around permeable well tublar
07/22/2003US6597175 Electromagnetic detector apparatus and method for oil or gas well, and circuit-bearing displaceable object to be detected therein
07/22/2003US6595487 Electric actuator
07/22/2003US6595297 Method and apparatus for inserting a tubing hanger into a live well
07/22/2003US6595293 Apparatus and method for connecting riser between a floating vessel and a subsea structure
07/22/2003US6595292 Method and apparatus for use with two or more hydraulic conduits deployed downhole
07/22/2003US6595289 Method and apparatus for plugging a wellbore
07/22/2003US6595288 Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing
07/22/2003US6595283 Extrusion resistant inflatable tool
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