E21B 3/02

Technology



back to "E21B 3/02" profile

More Results

Showing 1 to 20 of 179 results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9988871 Apparatus and method for data transmission from a rotating control deviceJun 21, 16Jun 05, 18Weatherford Technology Holdings, LLC
9988862 Elevator roller insert systemAug 17, 17Jun 05, 18Cajun Services Unlimited, LLC
9952119 System for operating a top drive assembly for subterranean operationsMar 04, 15Apr 24, 18Canrig Drilling Technology Ltd.
9951559 Rotation unit, rock drilling unit and method for rock drillingOct 09, 15Apr 24, 18Sandvik Mining and Construction Oy
9954357 Apparatus and method for supplying hybrid power of offshore plantDec 18, 14Apr 24, 18DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
9938783 Seal configuration for top drive swivel apparatus and methodFeb 13, 17Apr 10, 18Mako Rentals, Inc.
9926747 Method of incorporating remote communication with oilfield tubular handling apparatusSep 06, 16Mar 27, 18Weatherford Technology Holdings, LLC
9903160 Rod manipulator for a mining drill rigMar 09, 15Feb 27, 18SANDVIK INTELLECTUAL PROPERTY AB
9896889 Drilling tool support and method of collaringDec 19, 14Feb 20, 18SANDVIK MINING AND CONSTRUCTION OY
9890591 Top drive module connector and methodsJul 15, 13Feb 13, 18NABORS DRILLING TECHNOLOGIES USA, INC.
9856719 System for supplying power from the main powerhouse to a drill floor powerhouseDec 21, 16Jan 02, 18Not available
9834990 Bogey style torque bushing for top driveDec 23, 13Dec 05, 17NABORS DRILLING TECHNOLOGIES USA, INC.
9822593 Device for a pipe handling unit and method of inserting and withdrawing a pipe string in/from a boreholeFeb 20, 13Nov 21, 17WEST DRILLING PRODUCTS AS
9797199 High speed precision guide device for creating holes for piles or other support membersMay 04, 17Oct 24, 17Not available
9790751 Drilling rig employing top driveMar 07, 13Oct 17, 17NABORS DRILLING INTERNATIONAL LIMITED
9752384 Electric horizontal directional drilling machine systemNov 17, 14Sep 05, 17The Charles Machine Works, Inc.
9745805 Method of interconnecting a drill rod with a drill string by means of a threaded connection, rod handling system and drill rigSep 06, 13Aug 29, 17SANDVIK INTELLECTUAL PROPERTY AB
9739103 Method for a drill support arrangement, drill support arrangement, vehicle comprising a drill support arrangement and computer program productAug 26, 13Aug 22, 17ATLAS COPCO ROCK DRILLS AB
9725955 Arrangement for continuous circulation of drilling fluid during drilling operationsJun 13, 13Aug 08, 17WEST DRILLING PRODUCTS AS
9719314 Drill rod tallying system and methodJun 30, 15Aug 01, 17VERMEER CORPORATION

Showing 1 to 20 of 179 results