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 41 - Equipment or details not covered by groups
Patents for E21B 41 - Equipment or details not covered by groups (7,984)
11/1983
11/15/1983US4416000 System for employing high temperature batteries for making measurements in a borehole
11/15/1983US4415823 Generator for the production of electrical energy
11/15/1983US4415205 Triple branch completion with separate drilling and completion templates
11/15/1983US4415045 Offshore drilling of large diameter holes in rock formations
11/10/1983WO1983003815A1 Loading device for loads movable with respect to a water body
11/08/1983US4413679 Wellbore cathodic protection
10/1983
10/25/1983CA1155762A1 Guides for forming connections
10/19/1983EP0091842A1 System for preventing liquids from being driven to the flare stack tip
10/04/1983US4407374 Device for controlling the orientation of bore holes
10/04/1983CA1154749A1 Device for controlling the orientation of bore holes
10/04/1983CA1154603A1 Temporary mooring of tension leg platform
09/1983
09/29/1983WO1983003280A1 A system for avoiding the entrainement of liquids to a flare stack tip
09/21/1983EP0088776A1 System for preventing liquids from being driven to the flair stack tip.
09/20/1983US4405263 Underwater devices with remotely operated latch means
09/20/1983US4405261 Subsea template levelling system and method
09/20/1983US4405258 Method for containing oil and/or gas within a blow-out cover dome
09/13/1983US4404093 Removing floating contaminants from water wells
09/13/1983US4403655 Draw works disabling device for use with a well drilling apparatus
09/13/1983CA1153685A1 Method and means for dispersing combustion gases in the atmosphere
09/06/1983US4402551 Method and apparatus to complete horizontal drain holes
09/06/1983CA1153305A1 Downhole pump with pressure limiter
08/1983
08/30/1983US4401164 In situ method and apparatus for inspecting and repairing subsea wellheads
08/23/1983US4400112 Connecting and disconnecting device for a guide line
08/23/1983US4399872 Guidelineless system for riser entry/reentry that permits quick release of a riser column from a subsea installation
08/23/1983US4399871 Chemical injection valve with openable bypass
08/17/1983EP0086099A2 Guideline system for positioning subsea equipment
08/16/1983US4399038 Method for dewatering the sludge layer of an industrial process tailings pond
08/04/1983WO1983002568A1 Method and apparatus for treating waste rock cuttings
08/03/1983EP0084811A2 Apparatus for working under water
08/02/1983US4396075 Multiple branch completion with common drilling and casing template
08/02/1983US4396071 Mud by-pass regulator apparatus for measurement while drilling system
07/1983
07/27/1983EP0084411A1 Composition and method for cleaning hydrocarbon oil from hard surfaces
07/26/1983US4395338 Straining, settling, boiling of drilling muds
07/26/1983CA1150716A2 Systems, apparatus and methods for measuring while drilling
07/19/1983US4393990 Process and device for dispersing flammable gases into the atmosphere
07/05/1983US4391331 Guides for use in forming pipe connections and a process of forming pipe connections
06/1983
06/29/1983EP0082513A1 Process for eliminating H2S from natural gas, crude oil and their mixtures
06/28/1983US4390061 Apparatus for production of liquid from wells
06/21/1983US4388970 Apparatus and method for controlling injection fluid flow in a well annulus
06/14/1983US4388484 Oil resistant protective elastomeric device
06/14/1983US4387514 Method for drying oil well drill cuttings
06/07/1983US4386659 Guides for forming connections
06/01/1983EP0080224A2 Means for generating electric energy in a borehole during drilling thereof
06/01/1983EP0080218A2 Method and means for transmitting data through a drill string in a borehole
05/1983
05/31/1983CA1147256A1 Seal assembly
05/24/1983US4384615 Method of mixing fluids in a well bore
05/24/1983CA1146848A1 Guides for use in forming pipe connections and a process for forming pipe connections
05/24/1983CA1146814A1 Multiple anchors for a tension leg platform
05/17/1983US4383578 Casing bore receptacle with fluid check valve
05/10/1983US4382341 Method for drying drilling mud
04/1983
04/26/1983CA1145447A1 Riser angle positioning system and process
04/12/1983CA1144380A1 Tension leg platform mooring tether connector
03/1983
03/31/1983WO1983001086A1 System for preventing liquids from being driven to the flair stack tip
03/30/1983EP0075515A1 Method and installation for oil recovery by in situ combustion
03/29/1983CA1143823A1 Drilling orientation tool
03/22/1983US4377127 Device for projecting a wall coating, particularly for an excavation
03/22/1983CA1143282A1 Method of and apparatus for positioning a submarine structure
03/09/1983EP0073610A2 Method and apparatus for drilling a well bore
03/08/1983US4375835 Oil production system
03/08/1983US4375833 Automatic well treatment system
02/1983
02/22/1983CA1141658A1 Method of controlling an erupted marine oil well
02/22/1983CA1141656A1 Apparatus for and method of operating a well
02/15/1983US4373592 Rotary drilling drill string stabilizer-cuttings grinder
02/01/1983US4371958 Drilling orientation tool
02/01/1983US4371038 Apparatus and method for injecting fluid into a well
01/1983
01/25/1983US4370211 Method and apparatus for cathodic protection
01/12/1983EP0069530A2 Mud by-pass regulator apparatus for measurement while drilling system
01/11/1983US4367980 Method and apparatus for completing diverless subsea large diameter flowline connections
01/11/1983US4367796 Blowout preventer and guideline handling
12/1982
12/21/1982US4364587 Safety joint
12/21/1982US4364432 Seal assembly
12/01/1982EP0065532A1 Method of treating oil-contaminated drill muds or cuttings prior to reuse or disposal
11/1982
11/30/1982US4361193 Method and arrangement for improving cuttings removal and reducing differential pressure sticking of drill strings in wellbores
11/30/1982US4361188 Well apparatus actuating means having pressure accumulator means and method of use
11/23/1982US4360234 In-situ method and apparatus for sparging gas bubbles
11/23/1982US4359960 Marine tether anchoring device
11/16/1982CA1135731A1 Method of mining heavy coal seams in two or more benches
11/03/1982EP0063910A2 Multi phase separation process
11/02/1982US4356789 Emergency evacuation system for offshore oil platform
10/1982
10/28/1982WO1982003566A1 Method and apparatus for removing organic contaminants from inorganic-rich minerals solids
10/26/1982CA1134261A1 Method of controlling scale in oil recovery operations
10/19/1982US4354553 Corrosion control downhole in a borehole
10/19/1982US4354513 Cuttings washer assembly
10/19/1982US4354446 Temporary mooring of tension leg platforms
10/05/1982US4352599 Permanent mooring of tension leg platforms
09/1982
09/28/1982US4351566 Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation
09/21/1982US4351037 Systems, apparatus and methods for measuring while drilling
09/21/1982US4351027 Adaptive riser angle position reference system
09/14/1982US4349073 Hydraulic jet well cleaning
09/07/1982US4348171 Apparatus for burning crude oil
09/07/1982US4347899 Downhold injection of well-treating chemical during production by gas lift
09/07/1982CA1131122A1 Device for burning crude oil
08/1982
08/31/1982US4347012 Method and apparatus for tension setting and compression releasing tubular connectors
08/17/1982US4344721 Multiple anchors for a tension leg platform
08/17/1982US4344488 Charged aerosol petroleum recovery method and apparatus
08/17/1982CA1129766A1 Method for controlling corrosion in thermal vapor injection gases
08/11/1982EP0057641A2 In situ combustion for oil recovery
08/10/1982CA1129340A1 Hydraulic tubing tensioner
07/1982
07/13/1982US4339152 Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation
07/06/1982CA1127075A1 Tubing drain
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