Class / Patent application number | Description | Number of patent applications / Date published |
166780100 | With tube rotating means (rotary tables) | 13 |
20090000780 | Top drive systems with reverse bend bails - A bail support and a top drive system with such bail supports, the top drive system including a top drive apparatus, the bails having a body with an upper head portion and two spaced-apart legs, each leg with an upper leg portion and a lower leg portion, the upper leg portions non-parallel to each other and extending from the head portion at an angle to a centerline of the bail, and each lower leg portion extending down from a corresponding upper leg portion in a reverse bend. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b). | 01-01-2009 |
20090032242 | SYSTEM AND METHOD FOR CONTROLLING LIQUID REMOVAL OPERATIONS IN A GAS-PRODUCING WELL - A system for operating downhole equipment in a well includes a drive shaft extending from a surface of the well to a downhole location. A motor is positioned at the surface and is operably connected to the drive shaft to selectively rotate the drive shaft. A lift system is positioned at the surface and is operably connected to the drive shaft to axially lift and lower the drive shaft. | 02-05-2009 |
20100288484 | SEAL CONFIGURATION FOR TOP DRIVE SWIVEL APPARATUS AND METHOD - For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system and novel seal configuration. | 11-18-2010 |
20100319905 | SYSTEM AND METHOD FOR CONTROLLING LIQUID REMOVAL OPERATIONS IN A GAS-PRODUCING WELL - A system for operating downhole equipment in a well includes a drive shaft extending from a surface of the well to a downhole location. A motor is positioned at the surface and is operably connected to the drive shaft to selectively rotate the drive shaft. A lift system is positioned at the surface and is operably connected to the drive shaft to axially lift and lower the drive shaft. | 12-23-2010 |
20110011574 | Hydrocarbon Recovery Drill String Apparatus, Subterranean Hydrocarbon Recovery Drilling Methods, and Subterranean Hydrocarbon Recovery Methods - Disclosed are hydrocarbon recovery drill string apparatus, subterranean hydrocarbon recovery drilling methods, and subterranean hydrocarbon recovery methods. In one embodiment, a hydrocarbon recovery drill string apparatus includes an elongated assembly within which a rotatable drill rod is received. The assembly comprises a longitudinal axis, a drill rod entrance end, and a drill rod exit end. The assembly comprises a tailcuttings diverter pipe proximate the drill rod exit end, with the tailcuttings diverter pipe defining an initial fluid flow path of the tailcuttings from the longitudinal axis which is acute from the longitudinal axis. Other apparatus and method aspects are contemplated. | 01-20-2011 |
20110226465 | SEAL CONFIGURATION FOR TOP DRIVE SWIVEL APPARATUS AND METHOD - For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system and novel seal configuration. | 09-22-2011 |
20120234531 | SEAL CONFIGURATION FOR TOP DRIVE SWIVEL APPARATUS AND METHOD - For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system and novel seal configuration. | 09-20-2012 |
20130014937 | Rotary Table Device for a Pipe StringAANM Krohn; HelgeAACI SandnesAACO NOAAGP Krohn; Helge Sandnes NOAANM Kalvatn; OveAACI StavangerAACO NOAAGP Kalvatn; Ove Stavanger NOAANM Grinrod; MadsAACI StavangerAACO NOAAGP Grinrod; Mads Stavanger NOAANM Skjaerseth; Odd B.AACI StavangerAACO NOAAGP Skjaerseth; Odd B. Stavanger NO - A rotary table device is provided with means arranged for suspension of a pipe string. The rotary table comprises a rotary ring arranged rotatably about the central axis of the rotary table. The rotary ring is formed by two or more ring sections, each connected to a system comprising a bearing housing section rotatable relative to a base section, a bearing housing groove being formed in a base contact surface on the bearing housing section and a corresponding base groove being formed in an opposing bearing housing surface in the base section. The grooves form a curve-shaped track for a roller body and the groove has a curvature center coinciding with the central axis of the rotary table. The rolling diameter of the roller body exceeds the collective depth of said grooves, and a channel connecting the end portions of the bearing housing groove is formed in the bearing housing section. | 01-17-2013 |
20130126156 | SEAL CONFIGURATION FOR TOP DRIVE SWIVEL APPARATUS AND METHOD - For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system and novel seal configuration. | 05-23-2013 |
20130220592 | Longitudinal Positioning Tool for a Rod String - A positioning tool longitudinally positions a rod string relative to a tubing string while the rod string remains by a drive head. An upper hollow shaft member of the tool is fixed to the rod string by a rod clamp while a lower hollow shaft member is slidably coupled to the upper hollow shaft member such that the upper and lower hollow shaft members are rotatable together and longitudinally adjustable relative to one another. The bottom end of the lower hollow shaft member is arranged to be coupled to the rotatable output of the drive head. A hydraulic lifting assembly is coupled between the upper and lower shaft members to hydraulically control the longitudinal position of the rod string and upper shaft member relative to the tubing string and the lower shaft member. | 08-29-2013 |
20140060808 | Device for Reducing Rod String Backspin in Progressive Cavity Pump - A backspin reducing device for reducing an amount or a rate of backspin of a rod string when lifting the rotor apart from the stator of an oil or gas downhole progressive cavity pump. The backspin reducing device includes a substantially cylindrical housing having one or more threaded pin receptacles holding respective threaded pins in threaded engagement around a polished rod portion of the rod string of the progressive cavity pump. Turning threaded pins in their respective threaded pin receptacles causes the interior ends of the threaded pins to move towards or away from the polished rod in the center of the housing. Attached to the interior end of each threaded pin is a friction roller. | 03-06-2014 |
20150041115 | SEAL CONFIGURATION FOR TOP DRIVE SWIVEL APPARATUS AND METHOD - For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system and novel seal configuration. | 02-12-2015 |
20160201418 | PUMP DRIVE HEAD WITH STUFFING BOX | 07-14-2016 |