| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 04/24/2012 | US8162057 Radiation-induced thickening for set-on-command sealant compositions and methods of use |
| 04/24/2012 | US8162056 Application of degradable fibers in invert emulsion fluids for kill pills |
| 04/24/2012 | US8162055 Methods of activating compositions in subterranean zones |
| 04/24/2012 | US8162054 Methods and apparatuses for releasing a chemical into a well bore upon command |
| 04/24/2012 | US8162053 Gas lift plunger assembly arrangement |
| 04/24/2012 | US8162050 Use of micro-electro-mechanical systems (MEMS) in well treatments |
| 04/24/2012 | US8162047 Reverse-circulation cementing of surface casing |
| 04/24/2012 | US8162046 Blowout preventer with shearing blades |
| 04/24/2012 | CA2667735C Large bore packer and methods of setting same |
| 04/24/2012 | CA2633182C Apparatus for gripping a tubular on a drilling rig |
| 04/19/2012 | WO2012051409A2 Apparatus including metal foam and methods for using same downhole |
| 04/19/2012 | WO2012050687A2 Swellable member, swell controlling arrangement and method of controlling swelling of a swellable member background |
| 04/19/2012 | WO2012050459A1 Guide post |
| 04/19/2012 | WO2012049289A1 Reducing wear on well head |
| 04/19/2012 | WO2012018937A3 Control line installation unit |
| 04/19/2012 | US20120090858 Method and apparatus for isolating and treating discrete zones within a wellbore |
| 04/19/2012 | US20120090857 Swellable Member, Swell Controlling Arrangement and Method of Controlling Swelling of a Swellable Member |
| 04/19/2012 | US20120090856 Method and apparatus for a high side orienting sub for multi-lateral installations |
| 04/19/2012 | US20120090842 Methods and compositions for suspending fluids in a wellbore |
| 04/19/2012 | US20120090841 Wellbore cementing compositions and methods of making and using same |
| 04/19/2012 | US20120090830 Apparatus Including Metal Foam and Methods for Using Same Downhole |
| 04/19/2012 | CA2814239A1 Method and apparatus for isolating and treating discrete zones within a wellbore |
| 04/19/2012 | CA2811110A1 Marine subsea assemblies |
| 04/18/2012 | CN202194628U 采气树及气井地面建设集成橇一体化装置 Xmas Tree and gas well integrated skid surface construction Integrated Device |
| 04/18/2012 | CN202194619U 一趟管柱液压座封挤水泥桥塞 Hydraulic seat seal trip string squeeze cement bridge plugs |
| 04/18/2012 | CN202194618U 一次充填挤水泥分隔器 Once filled squeeze separator |
| 04/18/2012 | CN202194617U 防返吐一次充填防砂挤水泥封隔器 Anti-back filling sand spit a cement squeeze packer |
| 04/18/2012 | CN202194616U 封隔器 Packer |
| 04/18/2012 | CN202194615U 封隔器胶筒保护结构 Packer cones protective structure |
| 04/18/2012 | CN202194614U 牺牲阳极组合式油管内封堵塞 Sealed within a sacrificial anode composite tubing blockage |
| 04/18/2012 | CN202194613U 液压免钻悬挂封隔器 Hydraulic drill-free suspension packer |
| 04/18/2012 | CN202194612U 多功能抽油机光杆密封盒 Multifunction pumping rod sealed box |
| 04/18/2012 | CN202194611U 一种油水井长冲程不压井作业装置 An oil wells long stroke snubbing unit |
| 04/18/2012 | CN202194610U 防盗油用采油树保护套 Christmas tree oil theft protection cover |
| 04/18/2012 | CN202194609U 油井井口补偿装置 Wellhead compensation device |
| 04/18/2012 | CN202194589U 辅助式橇装多功能快装不压井作业机 Assisted skid-mounted multifunction quick snubbing unit |
| 04/18/2012 | CN1944953B Method and apparatus for determining position in a pipe |
| 04/18/2012 | CN102418524A Novel technology of underground in-situ boring leaching mining |
| 04/18/2012 | CN102418508A 一种水力喷射封隔工具 One kind of hydro-jet packer tool |
| 04/18/2012 | CN102418494A 热敏伞式折叠型多层封隔器 Thermal umbrella folding type multilayer packer |
| 04/18/2012 | CN102418493A Heat-sensitive umbrella type packer for sublevel mining |
| 04/18/2012 | CN102418492A Tie-back plug-in sealing device for horizontal well fracturing |
| 04/18/2012 | CN102418491A 套管无泄漏悬挂装置 No leakage suspension bushings |
| 04/18/2012 | CN102418490A 一种密封装置 A sealing device |
| 04/18/2012 | CN102418485A 可定位井下智能投捞器 Can be positioned downhole fishing is a smart investment |
| 04/18/2012 | CN101338658B 可进行钢丝作业的密闭电潜泵生产完井系统及操作方法 Steel operations can be sealed ESP completion systems of production and method of operation |
| 04/17/2012 | US8158720 Crosslinkable polymer compositions and associated methods |
| 04/17/2012 | US8158563 Sealant composition |
| 04/17/2012 | US8157019 Downhole swellable sealing system and method |
| 04/17/2012 | US8157009 Cement compositions and associated methods comprising sub-micron calcium carbonate and latex |
| 04/17/2012 | US8157005 Casing mandrel for facilitating well completion, re-completion or workover |
| 04/17/2012 | CA2689034C Method of drilling and completing multiple wellbores inside a single caisson |
| 04/17/2012 | CA2664977C Slickline power control interface |
| 04/17/2012 | CA2646662C A quick lock wireline valve/blow-out preventor and methods for making and using same |
| 04/17/2012 | CA2615820C Downhole tool with pivotally mounted extendable assembly |
| 04/17/2012 | CA2545585C Clamping well casings |
| 04/17/2012 | CA2419672C Multiple tube structure |
| 04/15/2012 | CA2755609A1 Downhole extending ports |
| 04/14/2012 | CA2755102A1 Ultra-short slip and packing element system |
| 04/13/2012 | CA2755159A1 Methods and compositions for suspending fluids in a wellbore |
| 04/12/2012 | WO2012048157A2 Magnetic leak management apparatus and methods |
| 04/12/2012 | WO2012048144A2 Downhole tools and methods for selectively accessing a tubular annulus of a wellbore |
| 04/12/2012 | WO2012047915A2 Apparatus and method for controlled pressure drilling |
| 04/12/2012 | WO2012047534A2 Fill up and circulating tool with well control feature |
| 04/12/2012 | WO2012047351A1 Seal assembly and method |
| 04/12/2012 | WO2012046058A2 Subsea wellhead |
| 04/12/2012 | WO2012045813A1 An annular barrier |
| 04/12/2012 | WO2012045355A1 An annular barrier |
| 04/12/2012 | WO2012045168A1 Wellbore packer back-up ring assembly, packer and method |
| 04/12/2012 | WO2012045165A1 Actuation dart for wellbore operations, wellbore treatment apparatus and method |
| 04/12/2012 | WO2012024498A3 Wellbore service fluid and methods of use |
| 04/12/2012 | WO2012024063A3 Retractable petal collet backup for a subterranean seal |
| 04/12/2012 | WO2012017358A3 System and method for producing high pressure foam slurry |
| 04/12/2012 | WO2012007928A3 Positive retraction latch locking dog for a rotating control device |
| 04/12/2012 | WO2011163369A3 A system and method for conformance control in a subterranean reservoir |
| 04/12/2012 | WO2011126592A3 Tubing hanger running tool with integrated pressure release valve |
| 04/12/2012 | WO2011062669A3 Open-hole packer for alternate path gravel packing, and method for completing an open-hole wellbore |
| 04/12/2012 | US20120085554 Seal with Enhanced Nose Ring |
| 04/12/2012 | US20120085548 Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore |
| 04/12/2012 | US20120085545 Apparatus and method for controlled pressure drilling |
| 04/12/2012 | US20120085543 Backup Wellhead Blowout Prevention System and Method |
| 04/12/2012 | US20120085538 Method and apparatus for deploying and using self-locating title of the invention downhole devices |
| 04/12/2012 | DE102010049224A1 Einrichtung zum Auffangen und Ableiten von aus einem Gewässergrund austretenden Flüssigkeiten und/oder Gasen Means for collecting and discharging from emerging from a body of water base liquids and / or gases |
| 04/12/2012 | CA2813896A1 An annular barrier |
| 04/12/2012 | CA2813650A1 Wellbore packer back-up ring assembly, packer and method |
| 04/12/2012 | CA2813645A1 Actuation dart for wellbore operations, wellbore treatment apparatus and method |
| 04/12/2012 | CA2813492A1 Subsea wellhead including monitoring apparatus |
| 04/12/2012 | CA2813491A1 Subsea wellhead |
| 04/12/2012 | CA2812548A1 Fill up and circulating tool with well control feature |
| 04/12/2012 | CA2755088A1 Wellhead rotating breech lock |
| 04/11/2012 | EP2438266A2 Multiple zone isolation method |
| 04/11/2012 | EP1332274B1 Recovery of production fluids from an oil or gas well |
| 04/11/2012 | CN202187759U 一种井下漏失报警系统 A downhole leakage alarm system |
| 04/11/2012 | CN202187751U 油井分层采油工艺管柱 Well layered oil production string |
| 04/11/2012 | CN202187744U Axial-flow type high-energy mixer |
| 04/11/2012 | CN202187743U 油气田固井用高能混合器 Cementing oil and gas fields with high-energy mixer |
| 04/11/2012 | CN202187742U 多功能一体封孔注抽器 Multifunctional sealing priming device |
| 04/11/2012 | CN202187741U 滑套密封装置 Sleeve sealing device |
| 04/11/2012 | CN202187740U 气动防喷盒 Pneumatic BOP box |
| 04/11/2012 | CN202187739U 偏心采油井口 Eccentric wellhead |