| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 12/07/2011 | CN202064875U 光杆保护防喷井口密封装置 BOP wellhead protection rod seal |
| 12/07/2011 | CN202064874U 防盗螺栓 Anti-theft bolts |
| 12/07/2011 | CN202064873U 盘根盒自封器 Self-styled device packing boxes |
| 12/07/2011 | CN202064872U 井口防盗放压封井器 Burglar put pressure wellhead blowout preventer |
| 12/07/2011 | CN202064871U Protective umbrella for well shut-in device |
| 12/07/2011 | CN202064870U 腔内自调压组装式光杆密封盒 Self-regulating chamber assembled rod sealed box |
| 12/07/2011 | CN202064869U 一种基于抽油杆偏斜的防偏磨密封盘根盒 Based skew sucker rod seal packing boxes |
| 12/07/2011 | CN202064858U 修井作业井内管柱防顶装置 Workover wells string anti-top devices |
| 12/07/2011 | CN102272413A 环形屏障和环形屏障系统 Annular ring barrier and barrier systems |
| 12/07/2011 | CN102272412A 连接器组件 The connector assembly |
| 12/07/2011 | CN102268976A 一种用于套变出水井的管柱 A string sets conjure wells |
| 12/07/2011 | CN102268975A 一种乳化稠油堵水施工工艺 An emulsified heavy oil shutoff construction process |
| 12/07/2011 | CN102268974A 浅水平井专用尾管悬挂封隔总成 Shallow water Hirai dedicated liner hanger packer assembly |
| 12/07/2011 | CN102268973A 封孔装置 Sealing device |
| 12/07/2011 | CN102268972A 一种防止管柱蠕动造成封隔器坐封失效的方法 A method of preventing peristalsis caused string packer packer failure method |
| 12/07/2011 | CN102268971A 电潜泵用电缆穿越式热采井口装置 Electric submersible pump cable through thermal wellhead |
| 12/07/2011 | CN101532372B 分段式筛管完井管柱 Segmented screens completion string |
| 12/07/2011 | CA2734420A1 Swellable packer slip mechanism |
| 12/06/2011 | US8069922 Multiple activation-device launcher for a cementing head |
| 12/06/2011 | CA2732062C System and method for positioning a bottom hole assembly in a horizontal well |
| 12/06/2011 | CA2713611C Multi-function isolation tool and method of use |
| 12/06/2011 | CA2619632C Articulating bail assembly and method |
| 12/06/2011 | CA2547253C Downhole ball circulation tool |
| 12/01/2011 | WO2011150367A1 Improved process for manufacturing swellable downhole packers and associated products |
| 12/01/2011 | WO2011150233A1 Method and system for containing uncontrolled flow of reservoir fluids into the environment |
| 12/01/2011 | WO2011150223A2 Method and apparatus for maintaining pressure in well cement during curing |
| 12/01/2011 | WO2011149898A2 Surface detection of failed open-hole packers using tubing with external tracer coatings |
| 12/01/2011 | WO2011149633A2 Methods and systems for treating subterranean wells |
| 12/01/2011 | WO2011149479A1 Enhanced smear effect fracture plugging process for drilling systems |
| 12/01/2011 | WO2011148192A2 System and method for severing a tubular |
| 12/01/2011 | WO2011148191A2 Tubular severing system and method of using same |
| 12/01/2011 | WO2011148190A2 Tubular severing system and method of using same |
| 12/01/2011 | WO2011148184A2 Well intervention method and apparatus |
| 12/01/2011 | WO2011147459A1 Subsea hydrocarbon production system |
| 12/01/2011 | WO2011147021A1 Expandable polymer bladder apparatus for underwater pipelines and wells |
| 12/01/2011 | WO2011146983A1 Hydraulic fracturing |
| 12/01/2011 | WO2011115710A3 Well assembly with a composite fiber sleeve for an opening |
| 12/01/2011 | US20110290500 Apparatus and Method for Recovering Fluids From a Well and/or Injecting Fluids Into a Well |
| 12/01/2011 | US20110290486 Well Treatment Device, Method, and System |
| 12/01/2011 | US20110290485 Method and Apparatus for Maintaining Pressure In Well Cementing During Curing |
| 12/01/2011 | US20110290481 Apparatus And Method For Launching Plugs In Cementing Operations |
| 12/01/2011 | US20110290480 Surface detection of failed open-hole packers using tubing with external tracer coatings |
| 12/01/2011 | US20110290473 Configurable inserts for downhole plugs |
| 12/01/2011 | US20110290472 Process for manufacturing swellable downhole packers and associated products |
| 12/01/2011 | US20110290471 Effluent Capture and Shutoff Pipe Friction Mounting Apparatus |
| 12/01/2011 | DE102010023149A1 DPRS-Drill pipe-rescue system for pipes under pressure Bohrrohr-Rettungs-System für Rohre unter Druck DPRS drill pipe rescue system for pipes under pressure drill pipe Rescue system for pipes under pressure |
| 12/01/2011 | DE102010022600A1 Anti-damage device for conveying liquid or gaseous material to sea surface or near-surface area for assumption in tanks or pipelines, has flexible tubular structure, which is connected with borehole for receiving emergent material |
| 12/01/2011 | DE102010022444A1 Method for closing flowing media e.g. petroleum in pipe lines, involves managing length of locking bodies partially larger than diameter of bore holes or pipe lines, where bodies with equal and different dimensions are realized |
| 12/01/2011 | DE102010022401A1 Closure for pipeline, has closure body that is held at wall of pipeline, where closure body has multiple permanent magnetic closure elements |
| 12/01/2011 | DE102010021702A1 Pipe closing device, particularly for pipes flowing through fluid, has closing plug that is axially inserted in mouth of pipe, where closing plug has spreading elements, particularly in form of disk packet with leaf spring-like disks |
| 12/01/2011 | CA2800702A1 Subsea hydrocarbon production system |
| 12/01/2011 | CA2800465A1 Enhanced smear effect fracture plugging process for drilling systems |
| 12/01/2011 | CA2798773A1 Method and apparatus for maintaining pressure in well cement during curing |
| 11/30/2011 | EP2390460A2 Extending the life of a compromised umbilical |
| 11/30/2011 | EP2389497A1 Method and apparatus for performing cementing operations |
| 11/30/2011 | EP2389496A2 Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole |
| 11/30/2011 | EP2389495A2 Apparatus and method for setting a downhole anchor and related telescopic joint |
| 11/30/2011 | CN202055799U 油田井下作业用防中途座封可回收桥塞 Downhole operation with anti-middle seat seal recyclable bridge plugs |
| 11/30/2011 | CN202055798U Well cementing equipment |
| 11/30/2011 | CN202055797U 全程自灌胶塞碰压式浮箍 Since the whole irrigation stopper stopper float collar |
| 11/30/2011 | CN202055796U 井下温、压组合测试密封装置 Downhole temperature, pressure seal combination test |
| 11/30/2011 | CN202055795U 双层筒状胶芯环形防喷器 Double cylindrical rubber core annular BOP |
| 11/30/2011 | CN202055794U 全程控制简易套管头 Simple casing head full control |
| 11/30/2011 | CN202055793U 一种金属硬密封套管头 Hard metal seal casing head |
| 11/30/2011 | CN202055792U 采油井起下抽油杆抢喷装置 Production wells from under the sucker grab spray device |
| 11/30/2011 | CN202055791U 储气井井口结构 Gas wellhead structure |
| 11/30/2011 | CN202055771U 免钻式漂浮接箍 Free floating drilling collar |
| 11/30/2011 | CN102261230A 控制井眼的环形体积内的压力 Control wellbore pressure within the annular volume |
| 11/30/2011 | CN102003159B 固井水泥混浆作业的自动控制方法 Cementing Mixing jobs automatic control method |
| 11/30/2011 | CN101280674B 一种具有反挤注功能的油井固井系统 A kind of anti-squeeze function well cementing system |
| 11/29/2011 | US8066076 Connection system for subsea flow interface equipment |
| 11/29/2011 | US8066075 Completion suspension valve system |
| 11/29/2011 | US8066069 Method and apparatus for wellbore construction and completion |
| 11/29/2011 | US8066067 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 11/29/2011 | US8066064 Well assembly having a casing hanger supported by a load member actuated by a retractable member disposed in the wellhead |
| 11/29/2011 | US8066062 Seal for a drill string |
| 11/29/2011 | US8066061 Metal seal for wellheads |
| 11/29/2011 | CA2671686C Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids |
| 11/29/2011 | CA2667666C An underwater apparatus for operating underwater equipment |
| 11/29/2011 | CA2648847C Packer sealing element with shape memory material |
| 11/29/2011 | CA2600959C Low density cements for use in cementing operations |
| 11/27/2011 | CA2741134A1 Method and composition |
| 11/24/2011 | WO2011145943A1 Improved safety system for dangerous substances |
| 11/24/2011 | WO2011144512A2 Mechanical bending weak link |
| 11/24/2011 | WO2011100036A3 Integrated wellhead assembly |
| 11/24/2011 | WO2011050060A3 Method for plugging wells |
| 11/24/2011 | US20110284248 Foam resin sealant for zonal isolation and methods for making and using same |
| 11/24/2011 | US20110284247 Resin sealant for zonal isolation and methods for making and using same |
| 11/24/2011 | US20110284246 Perforating gun assembly to control wellbore fluid dynamics |
| 11/24/2011 | US20110284245 Fluid composition comprising particles and method of modifying a wellbore using the same |
| 11/24/2011 | US20110284243 Isolation tool actuated by gas generation |
| 11/24/2011 | US20110284242 Isolation tool |
| 11/24/2011 | US20110284236 Negative accumulator for BOP shear rams |
| 11/24/2011 | US20110284235 Safety System for Deep Water Drilling Units Using a Dual Blow Out Preventer System |
| 11/24/2011 | US20110284229 System, method and apparatus for fracture of wells having a liner |
| 11/24/2011 | US20110284224 Cutting dart and method of using the cutting dart |
| 11/24/2011 | US20110284223 Compositions and methods for well cementing |
| 11/24/2011 | US20110284221 Apparatus And Methods For Completing Subterranean Wells |
| 11/24/2011 | US20110284213 Device used in the form of a packer or a temporary plug |
| 11/24/2011 | US20110284212 Downhole fluid communication apparatus and method |