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)
10/2003
10/29/2003CN1452686A Wel packing
10/28/2003US6637524 Non-rotating sensor assembly for measurement-while-drilling applications
10/28/2003US6637516 High torque and high capacity rotatable center core and floatable sealed body assemblies with universal RAM applications and method
10/28/2003US6637514 Recovery of production fluids from an oil or gas well
10/28/2003US6637512 Pressure from the soap stick containment vessel is exhausted while the ball valve is opened to avoid the inhalation of well fluids into the containment vessel
10/28/2003US6637509 Wellhead stuffing box support assembly
10/28/2003CA2275814C Blowout preventer protector and setting tools
10/28/2003CA2268193C Pig delivery and transport system for subsea wells
10/23/2003WO2003087531A1 Method to form a barrier in a reservoir with a magnetorheological fluid
10/23/2003WO2003087529A1 Method of drilling with magnetorheological fluid
10/23/2003WO2003087525A1 A one trip drilling and casing cementing method
10/23/2003WO2003087523A2 Split carrier annulus seal assembly for wellhead systems
10/23/2003WO2003087520A2 Apparatus and method of detecting interfaces between well fluids and for detecting the launch of a device in oilfield applications
10/23/2003US20030196820 Inflatable packer & method
10/23/2003US20030196795 Inflatable packer with prestressed bladder
10/23/2003US20030196794 Slip spring with heel notch
10/23/2003US20030196792 Wellhead production pumping tree with access port
10/23/2003US20030196790 Control of hydrocarbon wells
10/23/2003US20030196708 Multiport gate valve assembly for flow completion system
10/23/2003CA2592638A1 Apparatus and method of detecting interfaces between well fluids and for detecting the launch of a device in oilfield applications
10/23/2003CA2481863A1 Method of drilling with magnetorheological fluid
10/23/2003CA2481860A1 Method to form a barrier in a reservoir with a magnetorheological fluid
10/22/2003EP1355170A2 A method of controlling production from a wellbore
10/22/2003EP1355169A2 Method and apparatus for controlling chemical injection of a surface treatment system
10/22/2003EP1355168A2 A method for avoiding injection induced unintentional fracture growth
10/22/2003EP1355167A2 An injection well with a fibre optic cable to measure fluorescence of bacteria present
10/22/2003EP1355166A2 An injection evaluation system
10/22/2003EP1355037A2 Control of hydrocarbon wells
10/22/2003CN2581685Y Well packer capable of flushing well
10/22/2003CN2581684Y Expansion type fracture packer
10/22/2003CN2581683Y Stamping expansion sealed slip well packer
10/22/2003CN2581682Y Downhole drilling tool blow-out preventer
10/21/2003US6634425 Instrumented cementing plug and system
10/21/2003US6634423 Lifting top drive remote control cement head
10/21/2003CA2271511C Method and apparatus for well workover or servicing
10/21/2003CA2246400C Seal electrical conductor arrangement for use with a well bore in hazardous areas
10/21/2003CA2226333C Lightweight intervention system
10/16/2003WO2003042125A3 Method of hardening a fluid mass
10/16/2003US20030193145 Split carrier annulus seal assembly for wellhead systems
10/16/2003US20030193035 Rotating blowout preventer with independent cooling circuits and thrust bearing
10/16/2003US20030192705 Forming a wellbore casing while simultaneously drilling a wellbore
10/16/2003US20030192698 Blowout preventer protector and method of using same
10/16/2003US20030192695 Apparatus and method of detecting interfaces between well fluids
10/16/2003US20030192690 Apparatus and method for detecting the launch of a device in oilfield applications
10/16/2003US20030192688 Tubing saver rotator and method for using same
10/16/2003US20030192687 Downhole actuation system utilizing electroactive fluids
10/15/2003EP1169171B1 Inflation element for a downhole tool, method and shaping tool for pre-disposing the bladder
10/15/2003EP0922155B1 Subsea module
10/15/2003CN2580103Y Electric cable explosion releasing piston type cement bucket
10/15/2003CN2580102Y New washable well packer with negative pressure chamber
10/15/2003CN2580101Y New unwashable well packer
10/15/2003CN2580100Y Gas (oil) production tree jackscrew protective sleeve
10/15/2003CN2580095Y Hydraulic collision pressure type well completion pipe string suspension packer
10/14/2003US6633236 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
10/14/2003US6631769 Method of operating an apparatus for radially expanding a tubular member
10/14/2003US6631765 Hanging liners by pipe expansion
10/14/2003US6631764 Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids
10/14/2003US6631759 Apparatus for radially expanding a tubular member
10/14/2003US6631734 Dummy undersea hydraulic coupling member
10/14/2003CA2312069C Pressure relief system for live well snubbing
10/14/2003CA2072064C Method of grouting porous gas - and petroleum - bearing formations
10/10/2003CA2423571A1 Tubing saver rotator and method for using same
10/09/2003WO2003083255A1 Sealing method and apparatus
10/09/2003US20030188876 Spring wire composite corrosion resistant anchoring device
10/09/2003US20030188869 Flapper valve for single trip retrieval of packer tools
10/09/2003US20030188868 Apparatus and methods for separating and joining tubulars in a wellbore
10/09/2003US20030188866 Circulation tool for use in gravel packing of wellbores
10/09/2003US20030188862 System and method for sensing and monitoring the status/performance of a downhole tool
10/08/2003EP1350920A2 Slips for anchoring a downhole tool
10/08/2003EP1350919A2 A blow out preventer adapter for subsea well completion
10/08/2003EP1350918A2 A method of completing a subsea well
10/08/2003EP1350003A1 Method of drilling and operating a subsea well
10/08/2003EP0852657B1 Tool for blocking axial flow in gravel-packed well annulus
10/08/2003CN2578525Y Well logging instrument for increasing resolution rate of acoustic log
10/08/2003CN2578519Y Assembled wax remover
10/08/2003CN2578515Y Fishing producing well mouth
10/08/2003CN1447876A Subsea intervention system
10/07/2003US6630021 Cementing casing strings in deep water offshore wells
10/07/2003CA2300622C Steep pitch helix packer
10/04/2003CA2424387A1 Spring wire composite corrosion resistant anchoring device
10/02/2003WO2003081360A2 Apparatus for controlling the annulus of an inner string and casing string
10/02/2003US20030184178 Method and system for reducing longitudinal fluid flow around a permeable well
10/02/2003US20030184019 Method and apparatus for injecting packing into stuffing boxes for reciprocating rods
10/02/2003US20030183391 Multiple zones frac tool
10/01/2003EP1348677A2 Storable water-silica suspensions for use in well cements
10/01/2003EP1144801B1 Method and system for moving equipment into and through an oil and/or gas production well
10/01/2003CN2576959Y Pumping well polish rod sealing device
10/01/2003CN2576958Y Casing pumping producing well head for environmental protection
10/01/2003CN2576957Y Pumping well polish rod sealing device
10/01/2003CN2576956Y Offsetting anti-theft radial polish rod sealing device
10/01/2003CN1445433A Method for regulating section of oil wells
09/2003
09/30/2003US6626991 Remarkable mechanical properties; obtained without introducing gas; lightweight particles, microcement and optionally Portland cement and gypsum
09/30/2003US6626470 Two-part connector for fluid carrying conduits
09/30/2003US6626245 Blowout preventer protector and method of using same
09/30/2003US6626240 Device for annular well isolation
09/30/2003US6626239 Internal gate valve for flow completion systems
09/30/2003CA2291991C Junk basket and method of use
09/30/2003CA2268557C Method and apparatus for dual string well tree isolation
09/25/2003US20030181542 For use in cementing wells
09/25/2003US20030181338 Methods of improving well bore pressure containment integrity
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