US2015226026A1PendingUtilityA1

Blowout preventer installation and removal devices and related methods

41
Assignee: ALLAN R NELSON ENGINEERING 1997 INCPriority: Feb 7, 2014Filed: Feb 7, 2014Published: Aug 13, 2015
Est. expiryFeb 7, 2034(~7.5 yrs left)· nominal 20-yr term from priority
Inventors:Gerald Edward Kent
E21B 33/06
41
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Claims

Abstract

A blowout preventer (BOP) installation and removal device, includes: a carriage for supporting a BOP assembly, the BOP assembly having a BOP axis; the carriage being mounted on a linear actuator that has a translation axis that is parallel to the BOP axis; and a rotator mounted to the carriage and connectable to the BOP for rotating the BOP about the BOP axis. A combination of a BOP assembly mounted to the carriage of the BOP installation and removal device with the rotator connected to the BOP and the BOP axis parallel to the translation axis. A rotation of the BOP aligns the axis of the BOP with the axis of the well. A method of using the BOP installation and removal device including installing a BOP assembly on a well.

Claims

exact text as granted — not AI-modified
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
         1 . A blowout preventer (BOP) installation and removal device, comprising:
 a carriage for supporting a BOP assembly, the BOP assembly having a BOP axis;   the carriage being mounted on a linear actuator that has a translation axis that is parallel to the BOP axis; and   a rotator mounted to the carriage and connectable to the BOP for rotating the BOP about the BOP axis.   
     
     
         2 . The BOP installation and removal device of  claim 1  mounted on a loader arm of a loader. 
     
     
         3 . The BOP installation and removal device of  claim 1  in which the linear actuator is mounted on a loader mounting part, with a pivot actuator connected to pivot the linear actuator, relative to the loader mounting part, about a pivot axis perpendicular to the translation axis. 
     
     
         4 . The BOP installation and removal device of  claim 3  in which the loader mounting part comprises a quick connector jib boom. 
     
     
         5 . The BOP installation and removal device of  claim 4  in which the loader mounting part is mounted on a loader arm of a loader. 
     
     
         6 . The BOP installation and removal device of  claim 5  in which the pivot axis is horizontal to a ground surface below the loader. 
     
     
         7 . The BOP installation and removal device of  claim 5  in which the quick connector jib boom is positioned above the linear actuator in use. 
     
     
         8 . The BOP installation and removal device of  claim 1  in which the carriage further comprises one or more clamping collars that are coaxial with the BOP axis and form a seat for one or more annular flanges of the BOP assembly. 
     
     
         9 . The BOP installation and removal device of  claim 1  in which the carriage is mounted to the linear actuator via one or more track rails. 
     
     
         10 . The BOP installation and removal device of  claim 1  in which one or more of the linear actuator and rotator each comprise a screw jack. 
     
     
         11 . The BOP installation and removal device of  claim 1  further comprising a controller connected to send control signals to one or more components of the BOP installation and removal device. 
     
     
         12 . A combination comprising a BOP assembly mounted to the carriage of the BOP installation and removal device of  claim 1  with the rotator connected to the BOP and the BOP axis parallel to the translation axis. 
     
     
         13 . A method of using the BOP installation and removal device of  claim 1  further comprising installing and removal a BOP assembly on a well. 
     
     
         14 . The method of  claim 13  in which installing further comprises:
 aligning the BOP centerline axis with a well centerline axis; and 
 translating the BOP assembly along the BOP axis using the linear actuator to install the BOP assembly on the well. 
 
     
     
         15 . The method of  claim 14  further comprising, before translating, rotating the BOP using the rotator to align studs on a wellhead with lower flange mounting holes on the BOP. 
     
     
         16 . The method of  claim 13  in which the well is a slanted well. 
     
     
         17 . A blowout preventer (BOP) installation and removal device, comprising:
 a BOP assembly mounted on a carriage, the BOP assembly having a BOP axis;   the carriage being mounted on a linear actuator that has a translation axis that is parallel to the BOP axis;   a rotator mounted to the carriage and connected to the BOP for rotating the BOP about the BOP axis; and   the linear actuator being mounted on a loader mounting part, with pivot actuator connected to pivot the linear actuator, relative to the loader mounting part, about a pivot axis perpendicular to the translation axis.   
     
     
         18 . The BOP installation and removal device of  claim 17  in which the loader mounting part comprises a quick connector jib boom. 
     
     
         19 . The BOP installation and removal device of  claim 18  in which the quick connector jib boom is secured to a loader arm.

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