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)
12/2014
12/10/2014CN103075179B 本煤层瓦斯抽采钻孔双管抽采方法 The coal seam gas Borehole double tube drainage methods
12/10/2014CN102900396B 煤层瓦斯抽采钻孔封隔一体封孔方法 Coal Seam Gas Borehole one packer sealing method
12/09/2014US8905679 Method of forming subterranean barriers with molten wax
12/09/2014US8905150 Casing stripper attachment
12/09/2014US8905149 Expandable seal with conforming ribs
12/09/2014US8905134 Wellbore servicing compositions and methods of making and using same
12/09/2014US8905133 Methods of zonal isolation and treatment diversion
12/09/2014US8905131 Probeless packer and filter systems
12/09/2014US8905130 Fluid sample cleanup
12/09/2014US8905129 Speed activated closure assembly in a tubular and method thereof
12/04/2014US20140352983 Downhole sealing assembly with swellable seal
12/04/2014US20140352963 Powder Defoaming Compositions and Methods of Reducing Gas Entrainment In Fluids
12/04/2014US20140352959 Diverting systems for use in low temperature well treatment operations
12/04/2014US20140352942 Annular barrier with a self-actuated device
12/02/2014US8902077 Subsea communication system and technique
12/02/2014US8899339 Systems and methods for regulating flow in a wellbore
12/02/2014US8899338 Method and apparatus for installing a wireline for logging or other operations in an under-balanced well
12/02/2014US8899337 Method and apparatus for securing and using hyrdajetting tools
12/02/2014US8899333 Submarine device
12/02/2014US8899332 Method for building and forming a plug in a horizontal wellbore
12/02/2014US8899329 Pumice-containing remedial compositions and methods of use
12/02/2014US8899328 Resin sealant for zonal isolation and methods for making and using same
12/02/2014US8899317 Decomposable pumpdown ball for downhole plugs
12/02/2014US8899315 Systems, methods, and devices for isolating portions of a wellhead from fluid pressure
12/02/2014US8899314 Stuffing box
12/02/2014US8899268 Discharge arm assembly for pumping units
11/2014
11/27/2014US20140345949 Seal system for downhole tool
11/27/2014US20140345875 Syntactic Foam Frac Ball and Methods of Using Same
11/27/2014US20140345874 Retrievable stimulation frac plug with ball and seat
11/27/2014US20140345873 Tubing hanger with coupling assembly
11/27/2014US20140345867 Cementing composition comprising anionically- and hydrophobically-modified cellulose ethers and its use
11/27/2014US20140345866 Modified cement composition, preparation and application thereof
11/27/2014US20140345865 Wellsite Surface Equipment Systems
11/27/2014US20140345856 Method of drilling a well
11/27/2014US20140345852 Landing collar
11/27/2014US20140345850 Damage Tolerant Casing Hanger Seal
11/25/2014US8895487 Cement composition containing an additive of a pozzolan and a strength retrogression inhibitor
11/25/2014US8895486 Methods and compositions comprising cement kiln dust having an altered particle size
11/25/2014US8895485 Methods and compositions comprising cement kiln dust having an altered particle size
11/25/2014US8894070 Energized composite metal to metal seal
11/25/2014US8894069 Inflatable packers
11/25/2014US8893812 Apparatus and methods for retrieving a well packer
11/25/2014US8893803 Safety relief valve system for use with subsea piping and process for preventing overpressures from affecting the subsea piping
11/25/2014US8893800 Apparatus for, and method of, landing items at a well location
11/25/2014US8893799 Subsurface safety valve including safe additive injection
11/25/2014US8893792 Enhancing swelling rate for subterranean packers and screens
11/25/2014US8893790 Biomimetic adhesive compositions comprising a phenolic polymer and methods for use thereof
11/25/2014US8893787 Operation of casing valves system for selective well stimulation and control
11/25/2014US8893780 Downhole apparatus with packer cup and slip
11/25/2014US8893779 Retrievable slip mechanism for downhole tool
11/25/2014US8893774 Multi-component tubular coupling for wellhead systems
11/25/2014US8893773 Combination swivel and ball dropper
11/20/2014US20140339774 High pressure mechanical seal for cables and power lines in oil wells
11/20/2014US20140339772 Rotating control device having seal responsive to outer diameter changes
11/20/2014US20140338925 Wiper plug having disintegrable flow passage obstructing portion and method of using same
11/20/2014US20140338911 Methods and compositions for use in oil and/or gas wells
11/20/2014US20140338909 Cement compositions comprising particulate foamed elastomers and associated methods
11/20/2014US20140338908 Cementing whipstock apparatus and methods
11/20/2014US20140338890 Retrievable swellable packer
11/20/2014US20140338889 Non-rotating wellbore tool and sealing method therefor
11/20/2014US20140338887 Annular fluid containment device
11/18/2014US8888142 Releasable connector for an off-shore oil installation
11/18/2014US8887818 Composite frac plug
11/18/2014US8887808 Engineered methods and materials for wellbore strengthening in subterranean operations
11/18/2014US8887807 Apparatus and methods for deploying cementing plugs
11/18/2014US8887806 Method for quantifying cement blend components
11/18/2014US8887799 Tattle-tale apparatus
11/13/2014US20140332239 Expandable packing element and cartridge
11/13/2014US20140332232 Annular barrier with an expansion detection device
11/13/2014US20140332230 Double swivel apparatus and method
11/13/2014US20140332229 Interventionless Adjustable Flow Control Device Using Inflatables
11/13/2014US20140332226 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
11/13/2014US20140332225 Cutting Device, Safety Valve, Method and Uses for Severing a Pipe-String-Related Object in a Safety Valve for a Well
11/13/2014US20140332222 Connection system for subsea flow interface equipment
11/13/2014US20140332215 Compositions and Methods for Well Completions
11/13/2014US20140332203 Closing of Underwater Oil Spills with the Help of Magnetic Powders
11/13/2014US20140332202 Power Pumping System And Method For A Downhole Tool
11/11/2014US8886504 Systems and methods for modeling and triggering safety barriers
11/11/2014US8881843 Managed pressure and/or temperature drilling system and method
11/11/2014US8881836 Packing element booster
11/11/2014US8881831 Offshore universal riser system
11/11/2014US8881829 Backup wellhead blowout prevention system and method
11/11/2014US8881828 Bore selector
11/11/2014US8881827 Wellhead having an integrated safety valve and method of making same
11/11/2014US8881815 Well treatment
11/11/2014US8881814 Liner cementation process and system
11/11/2014US8881801 Apparatus and method for the installation or removal of a rotary control device insert or a component thereof
11/06/2014US20140326511 Enhanced smear effect fracture plugging process for drilling systems
11/06/2014US20140326469 Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
11/06/2014US20140326462 Ram Device Operable with Wellbore Tubulars
11/06/2014US20140326455 Methods and Compositions for Treating a Subterranean Formation with Salt-Tolerant Cement Slurries
11/06/2014US20140326454 Methods and apparatus for wellbore construction and completion
11/06/2014US20140326446 Placing a Fluid Comprising Kiln Dust in a Wellbore Through a Bottom Hole Assembly
11/04/2014US8875800 Downhole sealing system using cement activated material and method of downhole sealing
11/04/2014US8875799 Covered retaining shoe configurations for use in a downhole tool
11/04/2014US8875798 Wellsite replacement system and method for using same
11/04/2014US8875795 Subsea sensors display system and method
11/04/2014US8875782 Oil field system for through tubing rotary drilling
10/2014
10/30/2014US20140318816 Downhole Tools With Ball Trap
10/30/2014US20140318814 Wireline pressure control apparatus
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