Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
05/2014
05/13/2014US8720565 Tubular severing system and method of using same
05/13/2014US8720564 Tubular severing system and method of using same
05/13/2014US8720563 Calcium aluminate cement composition containing a set retarder of an organic acid and a polymeric mixture
05/13/2014US8720562 Wellbore cementing compositions and methods of making and using same
05/13/2014US8720561 Sliding stage cementing tool and method
05/13/2014US8720560 Apparatus and method for cementing a borehole
05/13/2014US8720559 Cementing method and apparatus for use with running string having an obstruction
05/13/2014US8720556 Methods for initiating new fractures in a completed wellbore having existing fractures present
05/13/2014US8720554 Apparatus and methods of flow testing formation zones
05/13/2014US8720543 Device for passive pressure sealing
05/13/2014CA2832777A1 Snubbing stack
05/13/2014CA2797508C Selective set module for multi string packers
05/13/2014CA2756093C Rotating control head radial seal protection and leak detection systems
05/13/2014CA2681603C Improved packer
05/13/2014CA2674268C Pressure containment devices and methods of using same
05/13/2014CA2665429C Master ball valve with integrated hanger
05/08/2014WO2014070665A1 System and method for activating a down hole tool
05/08/2014WO2014070574A1 Single packer with a sealing layer shape enhanced for fluid performance
05/08/2014WO2014070503A1 Methods for producing fluid invasion resistant cement slurries
05/08/2014WO2014070469A1 Redundant seal apparatus and method
05/08/2014WO2014070380A1 Gravel packing system and method
05/08/2014WO2014070022A1 Downhole actuator device
05/08/2014WO2014067992A2 Barrier testing method
05/08/2014WO2013114065A3 A stab connector and method of use thereof
05/08/2014WO2013070357A3 Engineered methods and materials for wellbore strengthening in subterranean operations
05/08/2014WO2012174251A3 Foamed cement compositions containing metal silicides usable in subterranean well operations
05/08/2014US20140124686 Intervention blowout preventer and well intervention tool
05/08/2014US20140124267 Drilling apparatus with continuous rotation while tubular is being added
05/08/2014US20140124222 Apparatus and method for stripping solids and fluids from a string used in drilling or servicing wells
05/08/2014US20140124215 Convertible Downhole Devices
05/08/2014US20140124211 Pump system
05/08/2014US20140124193 Metal chevron axial seal
05/07/2014EP2728111A1 Pressure barrier testing method
05/07/2014EP2728109A2 Methods and systems for reverse circulation cementing in subterranean formations
05/07/2014EP2728108A1 A downhole stimulation system and a drop device
05/07/2014EP2728107A1 An active external casing packer (ECP) for frac operations in oil and gas wells
05/07/2014EP2728106A1 An active external casing packer (ECP) for frac operations in oil and gas wells
05/07/2014EP2728105A1 An active external casing packer (ECP) for frac operations in oil and gas wells
05/07/2014EP2726704A2 Well pump with seal section having a labyrinth flow path in a metal bellows
05/07/2014EP2726699A2 Blowout preventer seal assembly and method of using same
05/07/2014CN203584459U 新型钻杆式瓦斯封孔器 The new drill-type gas sealing device
05/07/2014CN203584454U 新型煤层注水封孔装置 The new seam sealing means water
05/07/2014CN203584424U 井下分层测试取样仪变径封隔结构 Downhole sampler adjustable tiered testing packer structure
05/07/2014CN203584365U 可取式一体挤灰桥塞 Retrievable bridge plug one squeeze ash
05/07/2014CN203584364U 固井顶替模拟试验系统 Cementing replace simulation test system
05/07/2014CN203584363U 一种喇叭口工具 One kind of flare tool
05/07/2014CN203584362U 油管堵塞器 Tubing clogged filter
05/07/2014CN203584361U 多功能水井封隔器 Multifunction wells packer
05/07/2014CN203584360U 抽油杆防喷器 Sucker rod BOP
05/07/2014CN203584359U 单筒双井非对称套管头 Monocular shuangjing asymmetric casing head
05/07/2014CN203584358U 自润滑式可调节抽油机光杆中心的井口密封盘根盒 Self-lubricated adjustable rod pumping wellhead seal packing box center
05/07/2014CN203584357U 一种采油井井口防盗气装置 A wellhead gas theft devices mining
05/07/2014CN203584356U 一种井口防顶器 One kind wellhead anti ejector
05/07/2014CN203584348U 投捞式堵塞器 And pulling type of plug
05/07/2014CN203584347U 一种坐孔底并可回接的尾管装置 One kind of sit bottom of the hole and the tail pipe means tieback
05/07/2014CN203584328U 抽油机井口扶正器 Pumping wellhead centralizer
05/07/2014CN103781990A 利用地下工具中被感应加热的嵌入颗粒的膨胀加速 Expansion of the underground using the induction heating tool is embedded in the particle acceleration
05/07/2014CN103775120A 一种上行瓦斯抽采钻孔钻屑封孔方法 Uplink gas drainage drilling cuttings sealing method
05/07/2014CN103775025A 分级箍 Classification hoop
05/07/2014CN103775024A 细煤浆封孔方法 Fine coal slurry sealing method
05/07/2014CN103775023A 一种低压油气井压井作法 A low-pressure oil and gas wells killing practices
05/07/2014CN103775022A 一种首次高压坐封后可低压重复坐封的多功能封隔器 One kind of high-pressure ride to win the title for the first time can be repeated low-packer multifunctional packer
05/07/2014CN103775021A 一种适合于小隔层堵底水井的堵水管柱及堵水方法 A small barrier blocking the bottom of wells and water shut-off methods for water shutoff column
05/07/2014CN103775020A 组合式胶筒封隔器 Modular plastic tube packer
05/07/2014CN103775019A 套管环空封隔装置 Casing annulus packer device
05/07/2014CN103775018A 一种旋转密封总成 A rotating seal assembly
05/07/2014CN102561987B 注蒸汽热敏扩张式折叠型多段封隔器 Steam injection thermal expansion folding type multistage packer
05/07/2014CN102536185B 一种多级可拖动式水力喷射封隔管柱及工艺 A multi-level can drag the column type hydraulic jet packers and Technology
05/07/2014CN102418508B 一种水力喷射封隔工具的使用方法 One kind of hydro-jet packer tool to use
05/06/2014US8714936 Fluid sealing elements and related methods
05/06/2014US8714273 High expansion metal seal system
05/06/2014US8714272 Cluster opening sleeves for wellbore
05/06/2014US8714268 Method of making and using multi-component disappearing tripping ball
05/06/2014US8714250 Multilayered ball sealer and method of use thereof
05/06/2014US8714241 Apparatus and method for sealing portions of a wellbore
05/06/2014CA2749636C Downhole tool assembly with debris relief, and method for using same
05/06/2014CA2734372C Composite reconfigurable tool
05/06/2014CA2607389C Sealing device surrounding duct in hole
05/01/2014WO2014066737A1 Methods for determining reactive index for cement kiln dust, associated compositions, and methods of use
05/01/2014WO2014066734A1 Methods for determining reactive index for cementitious components, associated compositions, and methods of use
05/01/2014WO2014066522A1 Advanced blow-out preventer
05/01/2014WO2014066238A1 One trip packer plug debris milling and removal method
05/01/2014WO2014066071A1 Downhole flow control, joint assembly and method
05/01/2014WO2014066069A2 Subsea wellhead stabilization using cylindrical sockets
05/01/2014WO2014066050A2 Hard stop energizing ring
05/01/2014WO2014065995A1 Valve system
05/01/2014WO2014065788A1 Interventionless adjustable flow control device using inflatables
05/01/2014WO2013070448A3 Apparatus and method of forming a plug in a wellbore
05/01/2014WO2012135188A3 Fluid-saving pump down tool
05/01/2014US20140120346 Filament Wound Composite Ball
05/01/2014US20140116721 Downhole Tools, System and Method of Using
05/01/2014US20140116720 High Temperature Back Pressure Valve
05/01/2014US20140116718 Single packer with a sealing layer shape enhanced for fluid performance
05/01/2014US20140116702 Expanded Wellbore Servicing Materials and Methods of Making and Using Same
05/01/2014US20140116701 Wellbore servicing materials and methods of making and using same
05/01/2014US20140116700 Integral diverter system
05/01/2014US20140116699 Pressure Relief-Assisted Packer
05/01/2014US20140116694 Gravel packing system and method
05/01/2014US20140116678 Inwardly Swelling Seal
05/01/2014US20140116677 Optimized composite downhole tool for well completion
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