| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 12/24/2008 | CN201170075Y Abrasion-proof type packer |
| 12/24/2008 | CN201170074Y Accidental adjustable packing box |
| 12/24/2008 | CN201170061Y Erosion resistance rotating control head base plate got gas drilling |
| 12/24/2008 | CN101328788A Remote control type ram block hydraulic locking apparatus |
| 12/24/2008 | CN101328787A Seal device of oil pumping machine well elastic dynamic seal well head |
| 12/24/2008 | CA2690340A1 Apparatus and method with hydrocarbon swellable and water swellable body |
| 12/24/2008 | CA2690167A1 Method and apparatus |
| 12/23/2008 | US7467665 Autonomous circulation, fill-up, and equalization valve |
| 12/23/2008 | CA2571913C Configurable wellhead system with permanent fracturing spool and method of use |
| 12/23/2008 | CA2547608C Rotationally locked wear sleeve for through-tubing drilling and completion |
| 12/23/2008 | CA2536455C Integral flush gauge cable apparatus and method |
| 12/23/2008 | CA2525065C Wellbores utilizing fiber optic-based sensors and operating devices |
| 12/23/2008 | CA2460503C Sealing element for a blowout preventer |
| 12/23/2008 | CA2426998C Environmentally acceptable fluid polymer suspension for oil field services |
| 12/18/2008 | WO2008154486A2 Multi-deployable subsea stack system |
| 12/18/2008 | WO2008154392A1 Swellable packer with back-up systems |
| 12/18/2008 | WO2008154384A2 Wrap on reactive element barrier packer and method of creating same |
| 12/18/2008 | WO2008154204A1 String mounted hydraulic pressure generating device for downhole tool actuation |
| 12/18/2008 | WO2008154076A1 Connector system and method of connecting |
| 12/18/2008 | WO2008153410A1 A collector device for drilling fluid |
| 12/18/2008 | WO2008152345A2 Multi-zone formation fluid evaluation system and method for use of same |
| 12/18/2008 | WO2008134266B1 Subsea well control system and method |
| 12/18/2008 | WO2008130852A3 Christmas tree with internally positioned flowmeter |
| 12/18/2008 | WO2008106639A3 Improved system and method for stimulating multiple production zones in a wellbore |
| 12/18/2008 | WO2008079882A3 Integrated flow control device and isolation element |
| 12/18/2008 | WO2007095377A3 Friction spring release mechanism |
| 12/18/2008 | US20080312378 Gypsum wallboard |
| 12/18/2008 | US20080308284 Elastomeric element installation tool and method |
| 12/18/2008 | US20080308283 Annular Packer Device |
| 12/18/2008 | US20080308282 Hydraulic coiled tubing retrievable bridge plug |
| 12/18/2008 | US20080308275 Subterranean Cementing Methods and Compositions Comprising Oil Suspensions of Water Soluble Polymers |
| 12/18/2008 | US20080308274 Lower Completion Module |
| 12/18/2008 | US20080308268 Method and Apparatus to Hydraulically Bypass a Well Tool |
| 12/18/2008 | US20080308267 Apparatus and methods for radially expanding a tubular member |
| 12/18/2008 | US20080308266 Drillable bridge plug |
| 12/18/2008 | CA2691315A1 A collector device for drilling fluid |
| 12/17/2008 | EP2003286A2 Hydraulic coiled tubing retrievable bridge plug |
| 12/17/2008 | EP2003285A1 Umbilical deployment system |
| 12/17/2008 | EP2002080A1 Sealing device |
| 12/17/2008 | EP1778813A4 Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes |
| 12/17/2008 | CN201165860Y Pipe inner blowout preventer |
| 12/17/2008 | CN201165859Y Energy-saving self-sealing packing box of oil pumping machine well head |
| 12/17/2008 | CN101324183A Lower completion module |
| 12/17/2008 | CN101324178A Casing tube heightening well head safety compensation apparatus |
| 12/16/2008 | US7464765 Inner guide seal assembly and method for a ram type BOP system |
| 12/16/2008 | US7464758 Model HCCV hydrostatic closed circulation valve |
| 12/16/2008 | US7464757 Method for continuously batch mixing a cement slurry |
| 12/16/2008 | US7464751 High pressure adapter assembly for use on blow out preventers |
| 12/11/2008 | WO2008151330A1 Procedures and compositions for reservoir protection |
| 12/11/2008 | WO2008150805A1 Downhole seal apparatus and method |
| 12/11/2008 | WO2008149063A1 Apparatus and method for improvements in wellbore drilling |
| 12/11/2008 | WO2008148944A1 Device for sealing off a well and a pipe and a fitting method |
| 12/11/2008 | WO2008116899A3 Wellbore system and method of completing a wellbore |
| 12/11/2008 | US20080302543 Expandable packer system |
| 12/11/2008 | US20080302542 Riserless Deployment System |
| 12/11/2008 | US20080302536 Multi-Deployable Subsea Stack System |
| 12/11/2008 | US20080302526 Arrangement for Affixing an Expandable Packer in a Hole |
| 12/11/2008 | US20080302524 Apparatus for wellbore communication |
| 12/10/2008 | EP2000630A1 Downhole 4D pressure measurement apparatus and method for permeability characterization |
| 12/10/2008 | CN201162521Y Double-sealing type graded hoop |
| 12/10/2008 | CN201162520Y Manual locking device of screw and transmission mechanism combination |
| 12/10/2008 | CN201162519Y Side door of novel blowout preventer |
| 12/10/2008 | CN201162518Y Composite inner chamber blowout preventer |
| 12/10/2008 | CN201162517Y Floating type single ram perventer |
| 12/10/2008 | CN201162516Y Anti-blowout fast connecting apparatus for oil well |
| 12/10/2008 | CN201162515Y Borehole protector |
| 12/10/2008 | CN201162514Y Pressing cap suspension clip of polished rod sealer |
| 12/10/2008 | CN201162513Y Nozzle block-resistant apparatus |
| 12/10/2008 | CN201162512Y Offset-adjusting abrasion-proof sealing device of polished rod |
| 12/10/2008 | CN201162511Y Underbalance pressurized logging apparatus |
| 12/10/2008 | CN101319604A Inverse squeezing tie-back sealing plug |
| 12/10/2008 | CN101319603A High-strength sealing steam injection packer |
| 12/10/2008 | CN101319602A Single card oil layer blasting hole plugging column |
| 12/10/2008 | CN101319601A Releasing type servo adjustable segmenting water controlling tool string for horizontal well |
| 12/09/2008 | US7462581 Bridging agent, particularly Newberyite or Struvite; partially depolymerized starch derivative, especially a partially depolymerized crosslinked ether derivative of a starch; and a base fluid such as a drilling or well servicing fluid |
| 12/09/2008 | US7461698 Remotely operable top drive system safety valve having dual valve elements |
| 12/09/2008 | CA2500704C Mono-trip well completion |
| 12/09/2008 | CA2442088C Pressure compensating apparatus and method for downhole tools |
| 12/09/2008 | CA2404947C Annulus sealing method using eutectic metal and heat induction |
| 12/08/2008 | CA2630638A1 Apparatus and method for engaging a tubular |
| 12/04/2008 | WO2008148073A1 Geothermal heat exchanger |
| 12/04/2008 | WO2008147707A2 A self energizing seal element |
| 12/04/2008 | WO2008147216A2 Subsea intervention system |
| 12/04/2008 | WO2008146017A1 Method of well cementing |
| 12/04/2008 | WO2008145726A1 Method for completing a borehole |
| 12/04/2008 | WO2008145168A1 Multicoupler |
| 12/04/2008 | WO2008144846A1 An inflatable void former for use in explosives boreholes |
| 12/04/2008 | WO2008120025A3 Rotating control device docking station |
| 12/04/2008 | WO2008070271A3 System and method for facilitating downhole operations |
| 12/04/2008 | US20080296845 Downhole seal apparatus and method |
| 12/04/2008 | US20080296844 Downhole seal apparatus and method |
| 12/04/2008 | US20080296016 Force Balanced Rotating Pressure Control Device |
| 12/04/2008 | US20080296012 Cementing manifold with canister fed dart and ball release system |
| 12/04/2008 | DE102008026079A1 Verfahren zur Komplettierung eines Bohrlochs Method of completing a wellbore |
| 12/04/2008 | CA2689315A1 Method for completing a borehole |
| 12/04/2008 | CA2689185A1 Method of well cementing |
| 12/04/2008 | CA2689095A1 Subsea intervention system |
| 12/04/2008 | CA2687824A1 A self energizing seal element |
| 12/03/2008 | EP1998002A2 Position sensor for determining operational condition of downhole tool |
| 12/03/2008 | EP1997792A2 Foamed well fluid compositions and methods for use in subterranean zones |