| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 06/21/2012 | WO2012082514A2 Christmas tree installation using coiled tubing injector |
| 06/21/2012 | WO2012082447A1 Wellbore apparatus and methods for zonal isolation and flow control |
| 06/21/2012 | WO2012080598A1 Method for drilling and lining a well |
| 06/21/2012 | WO2012080490A1 Well completion |
| 06/21/2012 | WO2012079914A2 Plugging device |
| 06/21/2012 | WO2012079768A2 Equipment and methods for determining waiting-on-cement time in a subterrenean well |
| 06/21/2012 | WO2012047915A3 Apparatus and method for controlled pressure drilling |
| 06/21/2012 | WO2012031265A3 Method and apparatus to observe a swellable packer element |
| 06/21/2012 | WO2012024799A3 Apparatus and method for providing a flange on a pipe |
| 06/21/2012 | WO2012021649A3 Well completion and related methods for enhanced recovery of heavy oil |
| 06/21/2012 | WO2011121277A3 Convertible downhole isolation plug |
| 06/21/2012 | WO2011117606A3 Downhole tool and method |
| 06/21/2012 | US20120152568 Downhole Apparatus with a Swellable Support Structure |
| 06/21/2012 | US20120152564 Horizontal production tree and method of use thereof |
| 06/21/2012 | US20120152557 Devices and Methods for Locally Replacing Seal Surface |
| 06/21/2012 | US20120152555 Circuit Functional Test System and Method |
| 06/21/2012 | US20120152541 Compositions and Methods for Well Completions |
| 06/21/2012 | US20120152540 Methods for cementing in a subterranean formation using a cement composition containing calcium silicate hydrate seeds |
| 06/21/2012 | US20120152539 Settable Compositions Comprising Interground Perlite and Hydraulic Cement |
| 06/21/2012 | US20120152535 Formulation and method of use for stimulation of heavy and extraheavy oil wells |
| 06/21/2012 | US20120152534 Systems and Methods For Dual Reinjection |
| 06/21/2012 | US20120152525 Low profile, high capacity ball injector |
| 06/21/2012 | US20120152524 Modular fracture plug and method of construction thereof |
| 06/21/2012 | CA2821124A1 Equipment and methods for determining waiting-on-cement time in a subterrenean well |
| 06/21/2012 | CA2819627A1 Wellbore apparatus and methods for zonal isolation and flow control |
| 06/21/2012 | CA2819371A1 Wellbore apparatus and methods for multi-zone well completion, production and injection |
| 06/21/2012 | CA2819350A1 Packer for alternate flow channel gravel packing and method for completing a wellbore |
| 06/21/2012 | CA2814334A1 Well completion |
| 06/21/2012 | CA2732180A1 Low profile, high capacity ball injector |
| 06/20/2012 | EP2466065A1 Well completion |
| 06/20/2012 | EP2466063A1 Equipment and methods for determining waiting-on-cement time in a subterranean well |
| 06/20/2012 | EP2466062A2 Devices and methods for transmitting eds back-up signals to subsea pods |
| 06/20/2012 | EP2466061A2 Devices and methods for locally replacing seal surface |
| 06/20/2012 | EP2466060A2 Circuit functional test system and method |
| 06/20/2012 | EP2464813A1 Dual barrier plug system for a wellhead |
| 06/20/2012 | CN202280456U 水泥头胶塞下行指示装置 Cement head stopper downward pointing device |
| 06/20/2012 | CN202280445U 小直径钻孔注浆封孔器 Small diameter drilling grouting sealing device |
| 06/20/2012 | CN202280444U Layered steam injection packer |
| 06/20/2012 | CN202280443U 一种防卡井封隔器 An anti-card well packer |
| 06/20/2012 | CN202280442U 一种水下卧式采油树油管悬挂器的对接定位装置 Underwater Christmas tree tubing hanger horizontal docking positioning device |
| 06/20/2012 | CN202280441U 油井螺栓防盗装置 Well bolt anti-theft device |
| 06/20/2012 | CN202280440U 新型油田防盗防偏磨井口装置 The new anti-theft eccentric wear oilfield wellhead |
| 06/20/2012 | CN202280439U Novel pressure relief observing plug |
| 06/20/2012 | CN202280436U 旋转防喷器工作台 BOP rotary table |
| 06/20/2012 | CN1671943B Method for construction and completion of injection wells |
| 06/20/2012 | CN102510930A Fracturing and gravel packing tool with multi movement wash pipe valve |
| 06/20/2012 | CN102505936A Double-boosting sealing device for determining coal seam gas pressure |
| 06/20/2012 | CN102505928A Method for treating natural gas well suite gas channeling |
| 06/20/2012 | CN102505927A Metal wrapped-type high-temperature sealing structure and manufacturing method thereof |
| 06/20/2012 | CN102505921A Water searching pipe column of open-hole horizontal well |
| 06/20/2012 | CN102504779A Paraffin rosin water plugging agent for water plugging of thick oil huff-puff well and water plugging construction method |
| 06/20/2012 | CN102504778A Preparation and application of hyperbranched composite system for plugging big pore channel |
| 06/20/2012 | CN101545364B Single machine multi-well horizontal type flexible energy-saving oil pumping unit |
| 06/20/2012 | CN101525985B Process for plugging bored well by forming cork for plugging |
| 06/19/2012 | US8201636 Expandable packer |
| 06/19/2012 | US8201634 Subsea cementing plug system with plug launching tool |
| 06/19/2012 | US8201633 Switchable circulating tool |
| 06/19/2012 | US8201628 Wellbore pressure control with segregated fluid columns |
| 06/19/2012 | US8201627 Double swivel apparatus and method |
| 06/19/2012 | US8201624 Clustered wellhead trunkline protection and testing system with ESP speed controller and emergency isolation valve |
| 06/19/2012 | CA2651686C Apparatus and methods for utilizing a downhole deployment valve |
| 06/19/2012 | CA2412072C Method and apparatus for wellbore fluid treatment |
| 06/14/2012 | WO2012078780A2 Bop stack with a universal intervention interface |
| 06/14/2012 | WO2012078705A2 Apparatus and methods for enhanced well control in slim completions |
| 06/14/2012 | WO2012078468A2 Extending lines through, and preventing extrusion of, seal elements of packer assemblies |
| 06/14/2012 | WO2012078431A2 Dual seal tubing hanger |
| 06/14/2012 | WO2012078049A1 Boltless locking arrangement |
| 06/14/2012 | WO2012054290A3 Screen assembly |
| 06/14/2012 | WO2012050687A3 Swellable member, swell controlling arrangement and method of controlling swelling of a swellable member background |
| 06/14/2012 | WO2011126377A3 System and method for feeding a coiled tubing in or out of a well |
| 06/14/2012 | US20120145414 Downhole Apparatus and Method |
| 06/14/2012 | US20120145413 Downhole Apparatus and Method |
| 06/14/2012 | US20120145412 Extending lines through, and preventing extrusion of, seal elements of packer assemblies |
| 06/14/2012 | US20120145393 Methods and Compositions Comprising Cement Kiln Dust Having An Altered Particle Size |
| 06/14/2012 | US20120145392 Compositions and methods for well completions |
| 06/14/2012 | US20120145391 Compositions and methods for well completions |
| 06/14/2012 | US20120145379 Bottom set downhole plug |
| 06/14/2012 | US20120145378 Bottom set downhole plug |
| 06/14/2012 | DE102010053900A1 Dichtungssystem für Bohrlochpumpen Sealing system for downhole pumps |
| 06/14/2012 | CA2820561A1 Dual seal tubing hanger |
| 06/14/2012 | CA2818831A1 Extending lines through, and preventing extrusion of, seal elements of packer assemblies |
| 06/13/2012 | EP2463476A1 Supplying power to underwater devices |
| 06/13/2012 | CN202273666U 一种无卡瓦封气采油一体化抽汲管柱 A non-slip seal integrated gas oil pumping column |
| 06/13/2012 | CN202273652U 一种通井刮削验管多功能封隔器 One kind of scrape through test tube wells multifunction packer |
| 06/13/2012 | CN202273649U 强制式自动灌浆单流阀 Forced automatic filling check valve |
| 06/13/2012 | CN202273644U 钻探孔壁塑造成型器 Drilling the hole wall shape shaper |
| 06/13/2012 | CN202273643U 高可靠性固井胶塞 High reliability cementing plug |
| 06/13/2012 | CN202273642U 固井胶塞 Cementing plug |
| 06/13/2012 | CN202273641U 全通径机械开关孔分级箍 Full Bore hole grading hoop mechanical switch |
| 06/13/2012 | CN202273640U 煤田钻孔堵漏系统 Coal drilling plugging system |
| 06/13/2012 | CN202273639U 一种耐高压液压封隔器 One kind of high pressure hydraulic packer |
| 06/13/2012 | CN202273638U 尼龙堵头裸眼封隔器 Nylon openhole packer plug |
| 06/13/2012 | CN202273637U 搭接式遇油膨胀封隔器 Lap encounter oil inflatable packer |
| 06/13/2012 | CN202273636U 压差裸眼封隔器 Openhole packer pressure |
| 06/13/2012 | CN202273635U 爬坡式变径防喷器 Reducing climbing type blowout preventer |
| 06/13/2012 | CN202273634U 油井套管试压塞密封结构 Well casing pressure test plug seal structure |
| 06/13/2012 | CN202273633U 套管无泄漏悬挂装置 No leakage suspension bushings |
| 06/13/2012 | CN202273632U 套管头夹持装置水平位置调节结构 Casing head clamping device to adjust the horizontal position of the structure |
| 06/13/2012 | CN202273631U 一种适用于双层套管结构的注汽热采油井套管头 An oil well casing head suitable for steam injection thermal double casing structure |
| 06/13/2012 | CN202273630U 井口内可控放压防盗封井器 Controlled release the pressure inside the wellhead blowout preventer theft |