| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 12/18/2007 | US7308934 Fracturing isolation sleeve |
| 12/13/2007 | WO2007143064A2 Stress distributing wellhead connector |
| 12/13/2007 | WO2007141507A1 Downhole servicing compositions having high thermal conductivitbes and methods of using the same |
| 12/13/2007 | WO2007141465A1 Methods and devices for treating multiple-interval well bores |
| 12/13/2007 | WO2007140820A1 A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 12/13/2007 | WO2007113753A3 Well servicing methods and systems |
| 12/13/2007 | WO2007001887A3 Pipe running tool having a cement path |
| 12/13/2007 | WO2006127895A3 Expandable bridge plug and setting assembly |
| 12/13/2007 | US20070287639 Sealant compositions comprising colloidally stabilized latex and methods of using the same |
| 12/13/2007 | US20070284113 System And Method For Rigging Up Well Workover Equipment |
| 12/13/2007 | US20070284109 Methods and devices for treating multiple-interval well bores |
| 12/13/2007 | US20070284105 Polyvinyl alcohol fluid loss additive with improved rheological properties |
| 12/13/2007 | US20070284103 Treatment Fluids Comprising Vitrified Shale and Methods of Using Such Fluids in Subterranean Formations |
| 12/13/2007 | US20070284102 Dissolved aluminium salt capable of hydrolysis, in use, to form a gel,wherein the solution of said aluminium salt containing suspended inorganic particles comprising alumina coated silica; for hydrocarbon wells |
| 12/13/2007 | CA2721480A1 Downhole servicing compositions having high thermal conductivities and methods of using the same |
| 12/13/2007 | CA2635925A1 Cement blend |
| 12/12/2007 | EP1865146A1 Packer for continuous sealing and closing of different ground water levels and artesian inflow in a borehole |
| 12/12/2007 | EP1865145A1 Method and apparatus for sealing a bore with a line therethrough |
| 12/12/2007 | EP1540131B8 "top drive swivel apparatus and method" |
| 12/12/2007 | CN200989202Y Blowout preventer control equipment with wireless remote-control function |
| 12/12/2007 | CN200989188Y Double-stage base seal connecting vessels |
| 12/12/2007 | CN200989187Y Movable gas source central processing device |
| 12/12/2007 | CN200989186Y Non-slip isolating packer |
| 12/12/2007 | CN200989185Y Expanding flushing packer |
| 12/12/2007 | CN200989184Y Well packing device |
| 12/12/2007 | CN200989183Y Oil layer packer |
| 12/12/2007 | CN200989182Y Casing pumping well head uncoupling device |
| 12/12/2007 | CN200989181Y Environment protection type underwell operation well head liquid trap |
| 12/12/2007 | CN200989180Y Hole sealing device |
| 12/12/2007 | CN200989179Y Three-purpose well head coupling device |
| 12/12/2007 | CN200989178Y Well head overflow collector |
| 12/12/2007 | CN200989177Y Polishing rod sealing device |
| 12/12/2007 | CN200989174Y Antiblowout disengaging connector |
| 12/11/2007 | US7306037 Reducing number and prevent migration of particles; preflushing with aqueous solution containing surfactant; noncatalytic reaction |
| 12/11/2007 | US7306036 System for reducing adhesion and cohesion between non metallic bailers and side wall of wells |
| 12/11/2007 | US7306033 Apparatus for isolating zones in a well |
| 12/11/2007 | US7305963 Blade-thru-slot combustion engine, compressor, pump and motor |
| 12/11/2007 | CA2492286C Running a completion assembly without killing a well |
| 12/06/2007 | WO2007107773A3 Improved packer |
| 12/06/2007 | WO2007024372B1 Inner guide seal assembly for a ram type bop system |
| 12/06/2007 | US20070278435 Method and apparatus |
| 12/06/2007 | US20070277983 Stress distributing wellhead connector |
| 12/06/2007 | US20070277979 Downhole wellbore tools having deteriorable and water-swellable components thereof and methods of use |
| 12/06/2007 | US20070277968 Multi-lock adapters for independent screwed wellheads and methods of using same |
| 12/05/2007 | EP1540669B1 Polypropylene cable jacket compositions with enhanced melt strength and physical properties |
| 12/05/2007 | CN200986022Y Combination type automatic lubrication and self-sealing drilled packing ring |
| 12/05/2007 | CN200985782Y Operating tool string for gas well fracturing and production put |
| 12/05/2007 | CN200985770Y Tools for preventing liquid in pipe from overbrimming in the times of oil pipe being put into well |
| 12/05/2007 | CN200985769Y Lifting oil layer switch |
| 12/05/2007 | CN200985768Y Blowout preventer of slide sealing shutter |
| 12/05/2007 | CN200985767Y Blowout preventer for gun perforation operation |
| 12/05/2007 | CN200985766Y Hollow oil cylinder type no-killing well repairing well head device |
| 12/05/2007 | CN200985765Y Grab type no-killing well repairing well head device |
| 12/05/2007 | CN200985764Y Blowout preventer of well head of oil production with sucker-rod pump |
| 12/05/2007 | CN200985763Y Jack well environmental protection packing kit |
| 12/05/2007 | CN200985762Y Blowout prevention double stage polish rod sealer |
| 12/05/2007 | CN101082271A Oblique-placer throttling arrangement and construction method thereof |
| 12/05/2007 | CN100353021C Quick release blowout preventer bonnet |
| 12/05/2007 | CN100353019C Mounts for blowout preventer bonnets |
| 12/04/2007 | US7304098 Hydrogel for use in downhole seal applications |
| 12/04/2007 | US7303023 Coupling and sealing tubulars in a bore |
| 12/04/2007 | US7303015 Placing a cementitious composition of a carrier fluid, and cement clinker with zeolite and gypsum, allowing to set; sealing a subterranean zone penetrated by a wellbore |
| 12/04/2007 | US7303014 Casing strings and methods of using such strings in subterranean cementing operations |
| 12/04/2007 | US7303013 Method for reducing density of a system fluid and for performing drilling operations using a reduced density system fluid comprising aerogel |
| 12/04/2007 | US7303008 Methods and systems for reverse-circulation cementing in subterranean formations |
| 12/04/2007 | US7302842 Method and device for measuring a path that has been covered |
| 12/04/2007 | CA2571670C Downhole surge pressure reduction and filtering apparatus |
| 12/04/2007 | CA2504578C Force transfer apparatus to assist release of loaded member |
| 12/04/2007 | CA2490077C Method for treating subterranean formation |
| 12/04/2007 | CA2482335C Wellhead isolation tool and method of fracturing a well |
| 12/04/2007 | CA2450432C Packing assembly for rotary drilling swivels |
| 12/04/2007 | CA2360851C Device for annular well isolation |
| 12/04/2007 | CA2335990C Seal |
| 12/04/2007 | CA2326714C New and improved drilling fluids and additives therefor |
| 12/02/2007 | CA2568945A1 Low pressure-set packer |
| 11/29/2007 | WO2007135445A1 Pump system for zonal isolation testing |
| 11/29/2007 | WO2003097987A3 A device for a long well tool |
| 11/29/2007 | US20070272415 Method and apparatus for equalizing pressure with a wellbore |
| 11/29/2007 | US20070272409 Energized fluid for generating self-cleaning filter cake |
| 11/29/2007 | US20070272405 Ribbed sealing element and method of use |
| 11/29/2007 | US20070272402 Wellhead isolation tool, wellhead assembly incorporating the same, and method of fracturing a well |
| 11/29/2007 | US20070271981 Apparatus for expanding a tubular member |
| 11/29/2007 | DE112005002969T5 Hybridsteuerungssystem und -verfahren Hybrid control system and method |
| 11/28/2007 | EP1210498B1 Smart shuttles to complete oil and gas wells |
| 11/28/2007 | CN200982177Y Bumping device for well cementing |
| 11/28/2007 | CN200982176Y Single ball type hydraulic releasing tail pipe hanger |
| 11/28/2007 | CN200982175Y Small clearance turbulator |
| 11/28/2007 | CN200982174Y Large passage compression type well-cleaning packer |
| 11/28/2007 | CN200982173Y Hydraulic type sand-blocking control leather bowl |
| 11/28/2007 | CN200982172Y Well mouth bolt anti-theft device |
| 11/28/2007 | CN101080549A Method of sealing an annular space in a wellbore |
| 11/28/2007 | CN101080548A A method and a device for sealing a void incompletely filled with a cast material |
| 11/27/2007 | US7300033 Blowout preventer operator locking system |
| 11/27/2007 | US7299882 Annular isolators for expandable tubulars in wellbores |
| 11/27/2007 | US7299881 Radial expansion of tubular members |
| 11/27/2007 | US7299871 Sealing compositions and associated method of use |
| 11/27/2007 | CA2524554C Electrical energy from a wellbore light cell |
| 11/27/2007 | CA2264632C Wellbores utilizing fiber optic-based sensors and operating devices |
| 11/22/2007 | WO2007134255A2 Stage cementing methods used in casing while drilling |
| 11/22/2007 | WO2007109489A3 Subsurface safety valve with closure provided by the flowing medium |