NABORS DRILLING USA Patent applications |
Patent application number | Title | Published |
20150330556 | Blowout Preventer Transport Cart - A BOP cart includes a platform including at least one mounting position adapted to receive the bottom of a BOP and a cart back extending generally perpendicular to the platform. The cart back includes at least one mounting feature positioned to secure the BOP to the BOP cart. | 11-19-2015 |
20140259987 | Telescoping Derrick - A derrick is disclosed. The derrick has a bottom section and a bottom-mid section. The derrick further may include a top-mid section and a top section, wherein a crown is disposed atop the top section and a travelling block is operatively coupled to the crown. The bottom section is separable into two split sections and the two split sections are configured so as to be disposed around the top-mid section such that the two split sections encompass the top-mid section. A hydraulic cylinder and plate mechanism (“locking dog mechanism”) is disposed on bottom section, wherein the mechanism is configured to hold the top-mid section when actuated. The bottom-mid section is sized to be moved into a space defined within the bottom section after the top-mid section has been raised above the bottom section. When fully erected, the top section is affixed to and above the top-mid section, the top-mid section is affixed to and above the bottom-mid section, and the bottom-mid section is affixed to and above the bottom section. | 09-18-2014 |
20140215996 | DRAG TRAIN TRANSPORTER AND CARRIER - An apparatus for transporting a drag chain service loop comprising a frame, wherein said frame encloses the drag chain, and wherein said frame may be attached directly to a drilling rig mast while said drag chain remains enclosed therein. | 08-07-2014 |
20140215934 | Drill Floor Panel Storage - A drilling rig includes a rig floor and a subfloor. The rig floor and subfloor are generally horizontal, with the subfloor positioned a selected distance below the rig floor. The subfloor extends at least partially below the rig floor. At least one access point is positioned to allow access to the subfloor from the rig floor. In some embodiments, the access point includes a hatch. The hatch is openable to allow access to the subfloor. | 08-07-2014 |