| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 01/19/2012 | US20120012329 Method of fixing a broken oil pipe |
| 01/19/2012 | US20120012318 Compositions And Methods For Servicing Subterranean Wells |
| 01/19/2012 | US20120012317 Solid Zirconium-Based Cross-Linking Agent and Use in Oil Field Applications |
| 01/19/2012 | US20120012316 Solid Zirconium-Based Cross-Linking Agent and Use in Oil Field Applications |
| 01/19/2012 | US20120012315 Low density cementitious compositions using limestone |
| 01/19/2012 | US20120012314 Low density cementitious compositions using lime kiln dust |
| 01/19/2012 | US20120012304 Compliant packers for formation testers |
| 01/19/2012 | US20120012302 Compact Surface Wellhead System and Method |
| 01/19/2012 | DE102010051164A1 Schutzeinrichtung zum Auffangen eines in ein Gewässer entweichenden Fluids Protection means for collecting a fluid escaping into a water body |
| 01/19/2012 | DE102010036411A1 Verfahren zur Hinterfüllung eines Bohrlochs und Anordnung dafür Method for backfill of a borehole and arrangement therefor |
| 01/19/2012 | DE102010036380A1 Method for temporary closing of deep sea hole, involves inserting two injection lines into damaged wellhead, and injecting liquid nitrogen and water simultaneously into damaged wellhead through injection lines under high pressure |
| 01/19/2012 | CA2841627A1 Method and device for emergency killing of an underwater oil/gas well |
| 01/19/2012 | CA2805630A1 Positive retraction latch locking dog for a rotating control device |
| 01/19/2012 | CA2805168A1 Blowout preventer and launcher system |
| 01/19/2012 | CA2804747A1 Auto-production frac tool |
| 01/18/2012 | EP2407635A2 Apparatus and methods for running liners |
| 01/18/2012 | EP2407633A2 Downhole packer having tandem packer elements for isolating frac zones |
| 01/18/2012 | EP2407632A2 Downhole packer having swellable sleeve |
| 01/18/2012 | EP2407631A1 Blowout preventer and launcher system |
| 01/18/2012 | CN202117661U Self-locking type stratum testing artificial pipe string |
| 01/18/2012 | CN202117648U One-level two-segment insert-seal injection-divided tubular pile capable of backwashing wells |
| 01/18/2012 | CN202117624U Self-locking blanking plug for casing and well cementing in well drilling |
| 01/18/2012 | CN202117623U Multi-seal type sleeve self-locking plug for well cementation |
| 01/18/2012 | CN202117622U Packed hole eddy flow cementing device |
| 01/18/2012 | CN202117621U Oil pipe cable bridge plug pressure generation device |
| 01/18/2012 | CN202117620U Grouting hole-packer |
| 01/18/2012 | CN202117619U Slurry and water injection hole packer with plugging and leakage-stopping function |
| 01/18/2012 | CN202117618U High temperature and high pressure resistance open hole hook wall packer |
| 01/18/2012 | CN202117617U Self-balanced type packing device |
| 01/18/2012 | CN202117616U Seal packer |
| 01/18/2012 | CN202117615U Combined structure of packer tools outside pipe for well cementation |
| 01/18/2012 | CN202117614U Mechanical locking device for packer |
| 01/18/2012 | CN202117613U Extension type slidingly sealing device |
| 01/18/2012 | CN202117612U Steam-heating flashboard blowout preventer |
| 01/18/2012 | CN202117611U Ram blowout preventer with self-sealing function |
| 01/18/2012 | CN202117610U Single-layer double-ram blowout preventer of sucker rod |
| 01/18/2012 | CN202117609U Aligning blowout preventing high pressure sealing device of well opening |
| 01/18/2012 | CN202117608U Annulus logging no-killing operation switch |
| 01/18/2012 | CN202117607U Oil pumping polish rod sealing box |
| 01/18/2012 | CN202117606U Blowout-preventing oil pipe head for non-well-killing valve replacing |
| 01/18/2012 | CN202117584U Safety anti-dropping clamp for gland of round packing box |
| 01/18/2012 | CN202117575U Geothermal well formed by reforming petroleum abandoned well |
| 01/18/2012 | CN202117572U Drill string equipped with downhole blowout preventer |
| 01/18/2012 | CN102322288A Self-expanding gas hole sealer |
| 01/18/2012 | CN102322240A Ball-casting hydraulic sizing collar |
| 01/18/2012 | CN102322239A High-energy mixer for well cementation in oil and gas fields |
| 01/18/2012 | CN102322238A Oil tube testing plugging process and tube testing plugging device |
| 01/18/2012 | CN102322237A Self-inflatable packer |
| 01/18/2012 | CN102322236A Integrated oil casing head |
| 01/18/2012 | CN102322235A Multifunctional oil fishing, cutting, blocking and clamping device |
| 01/18/2012 | CN102134967B Construction method of consolidating horizontal directional drilling hole by grouting coal seam baseboard |
| 01/18/2012 | CN102116140B Construction method for enhancing extraction effect of ground coal bed gas |
| 01/17/2012 | US8096365 Hydraulic control system |
| 01/17/2012 | US8096359 Method of cementing using polymeric retarder |
| 01/17/2012 | US8096358 Method of perforating for effective sand plug placement in horizontal wells |
| 01/17/2012 | US8096350 Dual point adjustable depth air sparging well system |
| 01/17/2012 | CA2633202C Homogenous synthetic mud-to-cement cementing glasses |
| 01/17/2012 | CA2601900C Low density cements for use in cementing operations |
| 01/17/2012 | CA2493698C System and method for utilizing nano-scale filler in downhole applications |
| 01/15/2012 | CA2746034A1 Low density cementitious compositions using limestone |
| 01/13/2012 | CA2805073A1 Swelling packer assisted by expander |
| 01/13/2012 | CA2740684A1 Tandem packer with compressible and swelling seals |
| 01/12/2012 | WO2012006457A1 Circulation sub and method for using same |
| 01/12/2012 | WO2012006110A1 Systems and methods for killing a well |
| 01/12/2012 | WO2012005926A2 Drill string/annulus sealing with swellable materials |
| 01/12/2012 | WO2012005874A2 Mitigating leaks in production tubulars |
| 01/12/2012 | WO2012005871A2 Packing element system with profiled surface |
| 01/12/2012 | WO2012005167A1 Method for sealing the flow of petroleum caused by damage of underwater oil well steel tube |
| 01/12/2012 | WO2012004366A2 Closure for a drill hole |
| 01/12/2012 | WO2011149633A3 Methods and systems for treating subterranean wells |
| 01/12/2012 | WO2011113845A3 Subsea well intervention module |
| 01/12/2012 | US20120006569 Drill string/annulus sealing with swellable materials |
| 01/12/2012 | US20120006568 Apparatus and Method for Capping an Underwater Oil Well |
| 01/12/2012 | US20120006559 Submergible oil well sealing device with valves and method for installing a submergible oil well sealing device and resuming oil production |
| 01/12/2012 | US20120006555 Subsea locking connector |
| 01/12/2012 | US20120006546 Compositions And Methods For Well Cementing |
| 01/12/2012 | US20120006545 Hybrid Cement Set-On-Command Compositions and Methods of Use |
| 01/12/2012 | US20120006532 Configurable inserts for downhole plugs |
| 01/12/2012 | US20120006531 Fitting to plug an exposed deep sea pipe |
| 01/12/2012 | US20120006530 Packing element system with profiled surface |
| 01/12/2012 | US20120006529 Blowout preventers and methods of use |
| 01/12/2012 | DE102010050494A1 Verschluss für ein Bohrloch A closure for a bore hole |
| 01/12/2012 | DE102010026524A1 Method for sealing leakage during extraction of crude oil, natural gas or water, involves freezing surrounding area of leakage by introducing cryogen and sealing leakage by freezing or in mechanical manner |
| 01/12/2012 | DE102010026425A1 Verfahren und Vorrichtung zum Abdichten von Leckagen an medienführenden Konstruktionen Method and apparatus for sealing leaks on fluid-carrying structures |
| 01/12/2012 | CA2804936A1 Circulation sub and method for using same |
| 01/12/2012 | CA2804679A1 Closure for a drill hole |
| 01/12/2012 | CA2803450A1 Mitigating leaks in production tubulars |
| 01/11/2012 | CN202108486U Two-stage three-section inserting, sealing and dispersing tubular column capable of backwashing well |
| 01/11/2012 | CN202108485U Two-stage two-section separation-injection tubing string for backwashing well with inserting sealing device and sleeve prefabricating sealing cylinder |
| 01/11/2012 | CN202108484U Three-stage four-section inserting, sealing and dispersing tubular column capable of backwashing well |
| 01/11/2012 | CN202108469U Well head pressure releasing device for sleeve of oil well |
| 01/11/2012 | CN202108465U Nonmetallic drillable bridge plug |
| 01/11/2012 | CN202108464U Cementing float shoe special for an equal diameter drilling well |
| 01/11/2012 | CN202108463U Combined-type long-acting multifunctional adjustable blanking plug |
| 01/11/2012 | CN202108462U Combined type inserted sealing device |
| 01/11/2012 | CN202108461U Tubing plug |
| 01/11/2012 | CN202108460U Wellhead device used for ocean deep water well drilling |
| 01/11/2012 | CN202108459U Conveniently-disassembled sealer of polished rod for pumping well |
| 01/11/2012 | CN202108458U Pumping well polish rod sealer |
| 01/11/2012 | CN202108457U Reducing connecting loop of eccentric wellhead |