| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 06/07/2007 | US20070125534 Methods of using wellbore sealant compositions containing cationic latexes |
| 06/07/2007 | US20070125532 Self energized backup system for packer sealing elements |
| 06/06/2007 | EP1792047A1 Casing shoes and methods of reverse-circulation cementing of casing |
| 06/06/2007 | EP1792046A1 Improved stuffing box |
| 06/06/2007 | EP1792045A2 A modular, distributed, rov retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 06/06/2007 | DE112005001351T5 Wässriger Klebrigmacher und Verfahren zur Kontrolle von Feststoffteilchen Aqueous tackifier and method for controlling particulate matter |
| 06/06/2007 | CN2908769Y Ball receiving apparatus |
| 06/06/2007 | CN2908768Y Uniform-pressure constant current plug |
| 06/06/2007 | CN1977027A Process for disruption of filter cakes |
| 06/06/2007 | CN1975100A Oil well intelligent anti-polluting device |
| 06/05/2007 | US7226203 Fluid mixing system |
| 06/05/2007 | US7225879 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/05/2007 | US7225875 Multi-layered wellbore junction |
| 06/05/2007 | US7225873 Coiled tubing cutter |
| 06/05/2007 | US7225871 Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
| 06/05/2007 | US7225870 Hydraulic tools for setting liner top packers and method for cementing liners |
| 06/05/2007 | US7225867 Liner top test packer |
| 06/02/2007 | CA2567913A1 Blending system for solid/fluids mixtures |
| 05/31/2007 | WO2007062329A2 Rotatable flange adapter |
| 05/31/2007 | WO2007061816A2 Controlling the pressure within an annular volume of a wellbore |
| 05/31/2007 | WO2007041420A3 In-situ solidification of invert emulsion fluids to form gas tight annular barrier |
| 05/31/2007 | WO2007031723A3 Packer |
| 05/31/2007 | US20070119626 Apparatus and methods for drilling a wellbore using casing |
| 05/31/2007 | US20070119600 Drillable bridge plug |
| 05/31/2007 | US20070119599 Interventionless Reservoir Control Systems |
| 05/31/2007 | US20070119595 Subsea wireline lubricator |
| 05/31/2007 | CA2630337A1 Controlling the pressure within an annular volume of a wellbore |
| 05/30/2007 | CN2906046Y 封隔器工具总成 Packer tool assembly |
| 05/30/2007 | CN2906045Y 封隔器 Packer |
| 05/30/2007 | CN2906044Y Throw-in type well-cleanout bottom screen packer |
| 05/30/2007 | CN2906043Y Throw-in type well-cleanout bottom screen packer |
| 05/30/2007 | CN2906042Y Double-seal automatically-enclosed type blowout preventer |
| 05/30/2007 | CN2906041Y Water injection well head device |
| 05/30/2007 | CN2906040Y Anti-theft wellhead cap |
| 05/30/2007 | CN2906036Y Underground damper for liquid unloading and gas production by using plunger |
| 05/30/2007 | CN2906035Y Ground damper for liquid unloading and gas production by using plunger |
| 05/30/2007 | CN1318728C Method of sealing an annulus |
| 05/30/2007 | CN1318727C Method for filling well aperture of subterranean terrane with gravel and gravel filling agent |
| 05/29/2007 | US7222668 Sample extraction system for boreholes |
| 05/29/2007 | CA2473522C Inflatable packing element |
| 05/29/2007 | CA2472793C Connection of downhole tubulars by expansion |
| 05/29/2007 | CA2432637C Method and apparatus for repair operations downhole |
| 05/29/2007 | CA2254480C Tubing rotator |
| 05/29/2007 | CA2200413C A method of installing the casing in a well and apparatus therefor |
| 05/24/2007 | WO2007058864A1 Self centralizing non-rotational slip and cone system for downhole tools |
| 05/24/2007 | WO2007058738A1 Optical sensor use in alternate path gravel packing with integral zonal isolation |
| 05/24/2007 | WO2007035745A3 Well treatment device, method, and system |
| 05/24/2007 | WO2007027080A3 Control system for seabed processing system |
| 05/24/2007 | US20070114044 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114043 Reverse out valve for well treatment operations |
| 05/24/2007 | US20070114039 Rotatable flange adapter |
| 05/24/2007 | US20070114037 Wellbore system for simultaneous drilling and production |
| 05/24/2007 | US20070114034 Controlling pressure and static charge build up within an annular volume of a wellbore |
| 05/24/2007 | US20070114033 Controlling the pressure within an annular volume of a wellbore |
| 05/24/2007 | US20070114032 Methods of consolidating unconsolidated particulates in subterranean formations |
| 05/24/2007 | US20070114019 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114018 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114017 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114016 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/23/2007 | EP1786716A1 Winch assembly |
| 05/23/2007 | CN2903374Y Fluid filling hole sealing device capable of cutting |
| 05/23/2007 | CN2903355Y Self filling tongue sheet type floating hoop |
| 05/23/2007 | CN2903354Y Pressing crack saling working drum |
| 05/23/2007 | CN2903353Y Washing well packer |
| 05/23/2007 | CN2903352Y Wellhead polish rod sealer for pressing filling packer |
| 05/23/2007 | CN2903351Y Pumping well polish rod sealer press cap anchor clamp |
| 05/23/2007 | CN1966932A Lifting-hanging type oil layer switch |
| 05/23/2007 | CN1966931A Blowout-prevention blocking device for oil pipe used in oil and gas well |
| 05/23/2007 | CN1317481C Modified method for modified fly ash and use for oil field water flooding development |
| 05/22/2007 | US7219932 Junction plate for subsea hydraulic couplings |
| 05/22/2007 | US7219750 Process and system for drilling and lining a bore hole |
| 05/22/2007 | US7219742 Method and apparatus to complete a well having tubing inserted through a valve |
| 05/22/2007 | US7219741 Tubing annulus valve |
| 05/22/2007 | US7219738 Inner riser adjustable hanger and seal assembly |
| 05/22/2007 | US7219735 Immiscible with capping fluid; preventing pollution; kits |
| 05/22/2007 | US7219733 Zeolite compositions for lowering maximum cementing temperature |
| 05/22/2007 | US7219732 Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation |
| 05/22/2007 | US7219730 Smart cementing systems |
| 05/22/2007 | US7219725 Instrumented plunger for an oil or gas well |
| 05/18/2007 | WO2007055594A1 Arrangement for external black start of subsea power system |
| 05/18/2007 | WO2007055593A1 Arrangement for internal black start of subsea power system |
| 05/18/2007 | WO2007054664A1 Subsea trees and caps for them |
| 05/17/2007 | US20070107913 Thru-tubing high expansion inflatable seal with mechanical anchoring system and method |
| 05/17/2007 | US20070107910 Hybrid wellhead system and method of use |
| 05/17/2007 | US20070107905 Dry tree subsea well communications methods using variable tension large offset risers |
| 05/17/2007 | US20070107904 Modular backup fluid supply system |
| 05/17/2007 | US20070107903 System for use in controlling a hydrocarbon production well |
| 05/17/2007 | US20070107901 In-situ method of fracturing gas shale and geothermal areas |
| 05/16/2007 | EP1784556A1 An arrangement for affixing an expandable packer in a hole |
| 05/16/2007 | CN2900782Y Device for producing large size artificial rock core for analogue drilling block |
| 05/16/2007 | CN2900772Y Compression type gas push high temperature packer |
| 05/16/2007 | CN2900771Y Expansion type oil well packer |
| 05/16/2007 | CN2900770Y Oil pipe elelator well seal grab spray device |
| 05/16/2007 | CN2900769Y Anti-blowount valve for mine downhole drilling hole |
| 05/16/2007 | CN2900768Y Ground driving device for top mechinery seal screw oil pump |
| 05/16/2007 | CN1965146A Aqueous-based tackifier fluids and methods of use |
| 05/16/2007 | CN1315978C Deep plugging agent containing wood dust and gel |
| 05/15/2007 | US7216872 Seal for use with pipe and flange assemblies |
| 05/15/2007 | US7216720 Multi-string production packer and method of using the same |
| 05/15/2007 | US7216707 Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions |