| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 05/09/2012 | CN102444390A Emergency rescuing device for incontrollable blowout |
| 05/09/2012 | CN102443382A Plugging agent suitable for large leakage, its preparation method and leaking stopping technology |
| 05/09/2012 | CN101476452B Water-control fracturing yield increasing method for oil gas well |
| 05/09/2012 | CN101025083B Experiment method for packer working performance and apparatus thereof |
| 05/08/2012 | US8171989 Well having a self-contained inter vention system |
| 05/08/2012 | CA2597563C One trip cemented expandable monobore liner system and method |
| 05/03/2012 | WO2012058541A2 Well emergency separation tool for use in separating a tubular element |
| 05/03/2012 | WO2012058290A2 Surface multiple well |
| 05/03/2012 | WO2012058288A2 Downhole multiple well |
| 05/03/2012 | WO2012057631A1 Method and device for plugging of a subsea well |
| 05/03/2012 | WO2012055486A1 Hydraulic control block |
| 05/03/2012 | WO2011126591A3 Tubing hanger running tool with integrated landing features |
| 05/03/2012 | WO2011104279A3 Drilling system and method of operating a drilling system |
| 05/03/2012 | WO2011095512A3 Flow control device and flow control method |
| 05/03/2012 | US20120106297 Downhole apparatus, device, assembly and method |
| 05/03/2012 | US20120103634 Ring Member for a Swellable Downhole Packer |
| 05/03/2012 | US20120103630 Alignment of bop stack to facilitate use of a rotating control device |
| 05/03/2012 | US20120103629 Shear boost triggering and bottle reducing system and method |
| 05/03/2012 | US20120103625 Subsea wellhead keyless anti-rotation device |
| 05/03/2012 | US20120103611 Application of a specialized slurry used for cementing tubulars in wells producing synthesis gas by underground coal gasification |
| 05/03/2012 | US20120103610 Segregating flowable materials in a well |
| 05/03/2012 | US20120103609 Compositions and methods for well completions |
| 05/03/2012 | US20120103595 Sintered Polycrystalline Diamond Tubular Members |
| 05/03/2012 | US20120103593 System for a Downhole String with a Downhole Valve |
| 05/03/2012 | DE102010050368A1 Verfahren und Vorrichtung zum Verschließen eines Erdbohrlochs Method and apparatus for closing a Erdbohrlochs |
| 05/03/2012 | DE102010043351A1 Submarine control system has control module with multiple double ball valve units, where each double ball valve unit is connected with supply line, vent line and functional line connected with submarine device |
| 05/03/2012 | DE102010026665A1 Vorrichtungen und Verfahren zur Abdichtung von Rohr/Schlauch-Leckagen Devices and methods for sealing pipe / hose leaks |
| 05/03/2012 | DE102010002064B4 Verfahren zur Sanierung einer Erdreich-Bohrung Process for remedying soil-bore |
| 05/02/2012 | EP2446112A1 Apparatus and method for stimulating subterranean formations |
| 05/02/2012 | EP2446107A1 A completion assembly and a method for stimulating, segmenting and controlling erd wells |
| 05/02/2012 | EP2446105A2 Through tubing intelligent completion and method |
| 05/02/2012 | CN202209162U Anti-plugging stopper |
| 05/02/2012 | CN202209161U Stopper with adjustable low |
| 05/02/2012 | CN202209160U Stopper water-distribution butting device |
| 05/02/2012 | CN202209159U Telescopic compensation type packer |
| 05/02/2012 | CN202209158U Anti-theft lock of Christmas tree of oil pumping well |
| 05/02/2012 | CN102434194A Gas drainage drill hole structure formed in coal layer and method for fabricating same |
| 05/02/2012 | CN102434126A Systems and methods for using a passageway through subterranean strata |
| 05/02/2012 | CN102434125A Two-fluid-process based plugging construction method for well drilling |
| 05/02/2012 | CN102434124A Successive-compounding-process based plugging method for well drilling |
| 05/02/2012 | CN102434123A Riser emergency disconnect control system |
| 05/02/2012 | CN102434122A Anti-theft wellhead assembly |
| 05/02/2012 | CN101514619B Novel direct circulation well cementing device and well cementing method for high-pressure gas underground gas storage well |
| 05/02/2012 | CN101358527B Butt-joint water detection and blocking equipment |
| 05/01/2012 | US8167312 Metal seal adjustable casing sub |
| 05/01/2012 | US8167049 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 05/01/2012 | US8167047 Method and apparatus for wellbore fluid treatment |
| 05/01/2012 | US8167045 Methods and compositions for stabilizing formation fines and sand |
| 05/01/2012 | US8167043 Degradable material assisted diversion or isolation |
| 05/01/2012 | US8167033 Packer with non-extrusion ring |
| 05/01/2012 | US8167032 Annulus sealing assembly |
| 05/01/2012 | US8167031 Blowout preventer with shearing blades |
| 05/01/2012 | US8166993 Method and systems for using a shim plate for increased strength |
| 05/01/2012 | CA2756519A1 Method and apparatus for single-trip time progressive wellbore treatment |
| 05/01/2012 | CA2708591C Methods and apparatus for wellbore construction and completion |
| 05/01/2012 | CA2575212C Cement-free zeolite and fly ash settable fluids and methods therefor |
| 05/01/2012 | CA2467571C Open hole anchor |
| 05/01/2012 | CA2402218C Plug for tubulars |
| 04/28/2012 | CA2719686A1 Application of a specialized slurry used for cementing tubulars in wells producing synthesis gas by underground coal gasification |
| 04/26/2012 | WO2012054865A2 System and method related to a sampling packer |
| 04/26/2012 | WO2012054290A2 Screen assembly |
| 04/26/2012 | WO2012054253A2 Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore |
| 04/26/2012 | WO2012052402A2 Latching apparatus and method |
| 04/26/2012 | WO2012051705A1 Tools and methods for use in completion of a wellbore |
| 04/26/2012 | US20120098203 Energizing ring nose profile and seal entrance |
| 04/26/2012 | US20120097403 Invert Drilling Fluids Having Enhanced Rheology and Methods of Drilling Boreholes |
| 04/26/2012 | US20120097400 Valve |
| 04/26/2012 | US20120097399 Expandable anchoring mechanism |
| 04/26/2012 | US20120097398 Multi-Zone Fracturing Completion |
| 04/26/2012 | US20120097396 Bottom hole assembly |
| 04/26/2012 | US20120097395 Heatable material for well operations |
| 04/26/2012 | US20120097394 Modular dart launching valve |
| 04/26/2012 | US20120097389 Non-ionic alkali polymer solutions for enhanced oil recovery in a subterranean formation |
| 04/26/2012 | US20120097386 Downhole Flow Device with Erosion Resistant and Pressure Assisted Metal Seal |
| 04/26/2012 | US20120097384 Drillable slip with buttons and cast iron wickers |
| 04/26/2012 | CA2852311A1 Tools and methods for use in completion of a wellbore |
| 04/26/2012 | CA2815431A1 Apparatus and methods for restricting flow in a bore |
| 04/26/2012 | CA2815101A1 Latching apparatus and method |
| 04/26/2012 | CA2814186A1 System and method related to a sampling packer |
| 04/25/2012 | EP2443313A2 Blowout preventer |
| 04/25/2012 | EP2443312A1 A universal rotating flow head having a modular lubricated bearing pack |
| 04/25/2012 | CN202202839U 一种油田勘探开发用桥式分流装置 One kind of oil exploration and development with a bridge dividing device |
| 04/25/2012 | CN202202838U 一种液压封隔器 A hydraulic packer |
| 04/25/2012 | CN202202837U 洗井封隔器 Wash well packer |
| 04/25/2012 | CN202202836U 新型封隔器 The new packer |
| 04/25/2012 | CN202202835U 油气井井下作业多功能井口装置 Downhole oil and gas wells multifunction wellhead |
| 04/25/2012 | CN202202834U 采油井下设备投放器 Oil downhole equipment dispensers |
| 04/25/2012 | CN202202833U 油田井口密封器 Oilfield wellhead sealer |
| 04/25/2012 | CN202202829U 连续抽油管设备 Continuous pumping tubing equipment |
| 04/25/2012 | CN102428248A 膨胀封隔器以及构造方法 Inflatable packer and Constructors |
| 04/25/2012 | CN102425400A 一种不动管柱实现多层选压的压裂工艺 A non-moving string of multi-tier election pressure fracturing process |
| 04/25/2012 | CN102425394A 一种低压油藏侧钻井固井完井工艺 A low-pressure reservoir sidetrack well cementing and completion technology |
| 04/25/2012 | CN102425393A 基于测井车打水泥塞工艺的油井储层封堵装置及其使用方法 Based on logging truck hit the cement plug oil reservoir technology occlusion device and method of use |
| 04/25/2012 | CN102425392A Hydraulic sealing permanent packer |
| 04/25/2012 | CN102425391A 一种基于记忆合金的分支井窗口密封方法 Wells window sealing method based memory alloys |
| 04/25/2012 | CN102425390A 基于直线电机的深水防喷器组控制系统 Deepwater BOP stack-based control system of linear motor |
| 04/25/2012 | CN101537526B 高级抗硫防喷器内腔表面合金堆焊方法 Advanced anti-sulfur BOP cavity surface alloy welding method |
| 04/24/2012 | US8163679 Method for applying remedial cement to a wellbore |
| 04/24/2012 | US8163677 Consolidation agents and the use thereof for consolidating molded bodies and geological formations consisting of porous or particulate materials |
| 04/24/2012 | US8162058 Slag compositions and methods of use |