| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 05/17/2006 | EP1611311A4 System and method for treating drilling mud in oil and gas well drilling applications |
| 05/17/2006 | EP1444415B1 Single well development system |
| 05/17/2006 | EP1264067B1 Foundation for suction in installation of conductor casing |
| 05/17/2006 | CN2780987Y Concentric integral negative interference external fish-for type liquid distribution apparatus |
| 05/17/2006 | CN2780980Y Well hed sealer |
| 05/17/2006 | CN2780979Y Well head device for preventing offset wear pumping well |
| 05/17/2006 | CN2780978Y Device for preventing gas burglary on well head |
| 05/17/2006 | CN1774559A Pump plug |
| 05/17/2006 | CN1256500C 流体混合系统 Fluid mixing system |
| 05/16/2006 | US7044430 Lock bars for blowout preventer |
| 05/16/2006 | US7044231 Expandable packer with anchoring feature |
| 05/16/2006 | US7044230 Method for removing a tool from a well |
| 05/16/2006 | US7044228 Flowline jumper for subsea well |
| 05/16/2006 | US7044227 Subsea well injection and monitoring system |
| 05/16/2006 | US7044222 Fluid flow slurry; heating, controlling temperature; setting; using aqueous solution containing magnesium oxychloride; controlling viscosity |
| 05/16/2006 | US7044221 Apparatus for coupling a tubular member to a preexisting structure |
| 05/16/2006 | US7044220 Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
| 05/16/2006 | US7044218 Apparatus for radially expanding tubular members |
| 05/16/2006 | US7044217 Stuffing box for progressing cavity pump drive |
| 05/16/2006 | CA2186180C Well completion system and method |
| 05/16/2006 | CA2184943C Lateral seal and control system |
| 05/12/2006 | CA2797150A1 Packoff nipple |
| 05/12/2006 | CA2526615A1 Packoff nipple |
| 05/11/2006 | WO2006048669A1 Improvements in or relating to hydraulic rams |
| 05/11/2006 | WO2006048210A1 Method and apparatus for well treatment |
| 05/11/2006 | US20060096759 Methods and compositions for controlling lost circulation in subterranean operations |
| 05/11/2006 | US20060096758 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 05/11/2006 | US20060096757 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 05/11/2006 | US20060096756 Difunctional phosphorus-based gelling agents and gelled nonaqueous treatment fluids and associated methods |
| 05/11/2006 | DE102005052495A1 Aufblasbare Dichtungsbaueinheit und Verfahren zum Entfalten eines Paars voneinander beabstandeter, aufblasbarer Dichtungen Inflatable seal assembly and method for unfolding a pair of spaced apart, inflatable seals |
| 05/11/2006 | CA2585061A1 Method and apparatus for well treatment |
| 05/10/2006 | EP1339943B1 Well sealing method and apparatus |
| 05/10/2006 | CN2779060Y Direct-reading adjustable stratified water-flood device |
| 05/10/2006 | CN2779055Y Well mouth spout proof valve for removing bottom oil pipe |
| 05/10/2006 | CN2779054Y Detachable blending machine |
| 05/10/2006 | CN2779053Y Continuous chemically water blocking and acidifying matched sealing equipment |
| 05/10/2006 | CN2779052Y Automatic sealing / unsealing water well sealing equipment capable of checking seal |
| 05/10/2006 | CN2779051Y Small diameter water blocking device |
| 05/10/2006 | CN2779050Y Well completion hydraulic sealing equipment |
| 05/10/2006 | CN2779049Y Simple stripper rubber |
| 05/10/2006 | CN2779048Y Stripper rubber |
| 05/10/2006 | CN2779047Y Sealed type oil-water well under-pressure operation equipment |
| 05/10/2006 | CN2779046Y Automatic control oil-drain spout proof well mouth apparatus for gaining oil |
| 05/10/2006 | CN2779045Y Well-sealing device |
| 05/10/2006 | CN1769643A Inflatable packer assembly |
| 05/09/2006 | US7041707 Polyesterether copolymer, where in anionic diacid monomer or diester monomer selected from dimethyl 5-sulfoisophthalate, sulfosuccinic acid, 4-sulfophthalic acid, sulfonaphthalic acid, salts and anhydrides; applied to crude oil processes |
| 05/09/2006 | US7040420 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 05/09/2006 | US7040412 Adjustable hanger system and method |
| 05/09/2006 | US7040410 Adapters for double-locking casing mandrel and method of using same |
| 05/09/2006 | US7040409 Safety valve for oil wells |
| 05/09/2006 | US7040408 Flowhead and method |
| 05/09/2006 | US7040407 Collet load shoulder |
| 05/09/2006 | US7040404 Using polymer; well completion |
| 05/09/2006 | US7040403 Methods for controlling migration of particulates in a subterranean formation |
| 05/09/2006 | US7040402 Instrumented packer |
| 05/09/2006 | US7040396 Apparatus for releasably coupling two elements |
| 05/09/2006 | US7040394 Active/passive seal rotating control head |
| 05/09/2006 | US7040393 Choke and kill line systems for blowout preventers |
| 05/09/2006 | US7040390 Wellbores utilizing fiber optic-based sensors and operating devices |
| 05/04/2006 | WO2006046075A2 Improved plug |
| 05/04/2006 | WO2006045998A2 Methods for producing fluids from acidized and consolidated portions of subterranean formations |
| 05/04/2006 | WO2006045794A1 Sealing of a wellbore device in a tubular element |
| 05/04/2006 | US20060090906 Apparatus and method for wellbore isolation |
| 05/04/2006 | US20060090905 Inflatable packer assembly |
| 05/04/2006 | US20060090904 Cup tool, cup tool cup and method of using the cup tool |
| 05/04/2006 | US20060090903 System and method for thermal change compensation in an annular isolator |
| 05/04/2006 | US20060090893 Plunger Lift Apparatus That Includes One or More Sensors |
| 05/04/2006 | CA2813539A1 Improved plug |
| 05/04/2006 | CA2627279A1 Improved plug |
| 05/04/2006 | CA2580376A1 Sealing of a wellbore device in a tubular element |
| 05/03/2006 | EP1653043A1 Method and apparatus for well treatment |
| 05/03/2006 | EP1653042A1 An injection apparatus for injecting an activated fluid into a well-bore and related injection method |
| 05/03/2006 | EP1653040A1 Downhole tool and method for use of the same |
| 05/03/2006 | EP1412612B1 Downhole actuation system utilizing electroactive fluids |
| 05/03/2006 | CN2777199Y Means for injecting water blocking aggregate for bore-hole slip casting |
| 05/03/2006 | CN2777196Y Sealing offset water injection allocator |
| 05/03/2006 | CN2777193Y Hydraulic seat sealing slip-free heat-resistant packer |
| 05/03/2006 | CN2777192Y Water shut off tube column |
| 05/03/2006 | CN2777191Y Side opening window type gate blowout preventer |
| 05/03/2006 | CN2777190Y Novel well shutting-in device |
| 05/03/2006 | CN2777189Y Well head centering device for oil sucking polishing rod |
| 05/03/2006 | CN2777188Y Means for fixing seal gland of polish rod |
| 05/03/2006 | CN2777187Y Single-stage sectional type casing head |
| 05/03/2006 | CN2777186Y Inflated self-sealing type liquid drainage tube |
| 05/03/2006 | CN1766280A Damage prevention process for casing of long rubber sleeve type external casing packer |
| 05/03/2006 | CN1766279A Automatic monitoring system for anti-theft gas well |
| 05/02/2006 | US7036602 Retrievable bridge plug |
| 05/02/2006 | US7036598 Intervention module for a well |
| 05/02/2006 | US7036596 Hydraulic friction fluid heater and method of using same |
| 05/02/2006 | US7036593 Cement heating tool for oil and gas well completion |
| 05/02/2006 | US7036589 Methods for fracturing stimulation |
| 05/02/2006 | US7036588 Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| 05/02/2006 | US7036587 Methods of diverting treating fluids in subterranean zones and degradable diverting materials |
| 05/02/2006 | US7036586 Methods of cementing in subterranean formations using crack resistant cement compositions |
| 05/02/2006 | US7036582 Expansion cone for radially expanding tubular members |
| 05/02/2006 | US7036581 Wellbore seal device |
| 05/02/2006 | US7036397 Granular particle gripping surface |
| 05/02/2006 | CA2403860C Tubing head seal assembly |
| 05/02/2006 | CA2198689C Method and apparatus for establishing branch wells at a node of a parent well |
| 04/27/2006 | WO2006045098A1 Downhole fluid loss control apparatus |