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)
06/2003
06/12/2003WO2003048514A1 Methods and compositions for sealing an expandable tubular in a wellbore
06/12/2003WO2003048513A1 Method for terminating or reducing water flow in a subterranean formation
06/12/2003WO2003048512A1 Mechanical joints for subsea equipment
06/12/2003WO2003048508A1 Method and device for injecting a fluid into a formation
06/12/2003US20030108393 System for creating a conduit in a borehole formed in an earth formation
06/12/2003US20030106712 Internal riser rotating control head
06/12/2003US20030106698 Apparatus and methods for separating and joining tubulars in a wellbore
06/12/2003US20030106693 Subsea well injection and monitoring system
06/12/2003CA2468940A1 Resilient cement
06/11/2003EP1173655A4 Ribbed sealing element and method of use
06/11/2003EP1062405B1 Extraction of fluids from wells
06/11/2003CN2555389Y Temporary blocking poawer filling apts.
06/11/2003CN2555388Y Recoverable rubber plug tube column
06/11/2003CN2555387Y Sinking blowout preventer
06/11/2003CN2555379Y Anticreep packer
06/11/2003CN1423029A Oil field waterflooding and section-adjusting production-increasing process
06/11/2003CA2413710A1 Methods and compositions for forming permeable cement sand screens in wells
06/10/2003US6575426 Valve system and method
06/10/2003US6575251 Gravel inflated isolation packer
06/10/2003US6575247 Device and method for injecting fluids into a wellbore
06/10/2003US6575237 Hydraulic well control system
06/10/2003CA2281958C Ferrule-type fitting for sealing an electrical conduit in a wellhead barrier
06/05/2003WO2003046424A2 High torque and high capacity rotatable center core and floatable sealed body assemblies with universals ram applications and method
06/05/2003WO2003046331A1 Downhole fluid separation system
06/05/2003WO2003046330A1 Method and device for boring holes
06/05/2003WO2003046329A2 A wellhead assembly for communicating with the casing hanger annulus
06/05/2003US20030102720 Underwater hydrocarbon production systems
06/05/2003US20030102136 Rotating drilling head gripper
06/05/2003US20030102135 Crossover tree system
06/04/2003EP1316672A1 Power supply means for underwater hydrocarbon production systems
06/04/2003EP1316540A2 Well cement compositions
06/04/2003EP1316539A2 Well cement compositions
06/04/2003EP1315883A1 Well packing
06/04/2003EP0920570B1 Subsea well
06/04/2003EP0876546B1 Completions insertion and retrieval under pressure (cirp) apparatus including the snaplock connector
06/04/2003CN2554341Y Simple oil casing suspension device
06/04/2003CN2554340Y Adjustable pressure ring shaped capping apparatus
06/04/2003CN2554339Y Multifunction electric pump hanger
06/04/2003CN2554338Y Ring type sealing packing
06/04/2003CN2554337Y Well head polish rod self-lubricating anti-corroscive devcie
06/03/2003US6571880 Method and multi-purpose apparatus for control of fluid in wellbore casing
06/03/2003US6571877 Wellhead
06/03/2003US6571875 Circulation tool for use in gravel packing of wellbores
06/03/2003US6571869 Downhole surge pressure reduction and filtering apparatus
06/03/2003CA2065324C Subsea pump system
05/2003
05/30/2003WO2003044316A1 A protective device for subsea installations
05/29/2003US20030098181 Active controlled bottomhole pressure system & method
05/29/2003US20030098162 Method of inserting a tubular member into a wellbore
05/29/2003US20030098161 High torque and high capacity rotatable center core and floatable sealed body assemblies with universals ram applications and method
05/29/2003US20030098160 Downhole fluid separation system
05/29/2003US20030098154 Apparatus for radially expanding tubular members
05/29/2003US20030098153 Composite packer cup
05/29/2003US20030098064 Leak remedy through sealants in local reservoirs
05/28/2003EP1232325B1 Setting an annular seal
05/28/2003EP1125036B1 Making up and breaking out of a tubing string in a well while maintaining continuous circulation
05/28/2003EP1027522B1 An apparatus for retaining two strings of tubulars
05/28/2003CN2553104Y Radial follow type polish rod sealer
05/28/2003CN2553103Y Wellhead filter
05/28/2003CA2364151A1 Well stimulation and method of use
05/27/2003US6568476 Triggering mechanism for disconnecting a riser from a riser connector
05/27/2003US6568474 Rigless one-trip perforation and gravel pack system and method
05/27/2003US6568471 Liner hanger
05/27/2003US6568470 Downhole actuation system utilizing electroactive fluids
05/27/2003CA2199017C Horizontal subsea tree pressure compensated plug
05/23/2003CA2408309A1 Composite packer cup
05/22/2003WO2003042495A1 Plug setting apparatus and method
05/22/2003WO2003042494A1 Method and apparatus for borehole stabilisation
05/22/2003WO2003042489A2 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
05/22/2003WO2003042485A2 Apparatus for extraction of oil via underground drilling and production location
05/22/2003WO2003042125A2 Method of hardening a fluid mass
05/22/2003US20030094284 Internal connection of tree to wellhead housing
05/22/2003US20030094279 Method of selecting tubular members
05/22/2003US20030094278 Expansion cone for radially expanding tubular members
05/22/2003US20030094277 Expansion cone for radially expanding tubular members
05/22/2003US20030094276 Rotating drilling stripper
05/21/2003EP1040231B1 Soil consolidation apparatus, tool and method
05/21/2003CN2551762Y Forced high-pressure float coupling
05/21/2003CN2551759Y Gate jet preventing device for drilling well
05/21/2003CN2551758Y Ring jet-preventing device for drilling well
05/20/2003US6567013 Digital hydraulic well control system
05/20/2003US6566310 Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus
05/20/2003US6565093 Seal structure for downhole tool
05/20/2003US6564876 Packer
05/20/2003US6564872 Control of hydrocarbon wells
05/20/2003US6564870 Method and apparatus for completing wells with expanding packers for casing annulus formation isolation
05/20/2003US6564867 Method and apparatus for cementing branch wells from a parent well
05/15/2003US20030089506 Apparatus for extraction of oil via underground drilling and production location
05/15/2003US20030089505 Downhole surge pressure reduction and filtering apparatus
05/15/2003US20030089502 Spool for pressure containment used in rigless well completion, re-completion, servicing or workover
05/15/2003US20030089501 Tubing hanger with annulus bore
05/14/2003EP1021638B1 An apparatus and a method for launching plugs
05/14/2003EP0727007B1 Pressurized sheave mechanism for high pressure wireline service
05/14/2003CN2550489Y Variable diameter sleeve centralizer
05/14/2003CN2550488Y Sleeve blocking packer
05/14/2003CN2550487Y Non-release self-sealing double function packer
05/14/2003CN2550486Y Multifunction packer
05/14/2003CN2550485Y Portable wellhead blowout preventer
05/14/2003CN2550484Y Blowout prevention wellhead
05/14/2003CN2550483Y Pressure balance well oil production wellhead device
05/14/2003CN1418283A Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids
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