ALLAN R. NELSON ENGINEERING (1997) INC. Patent applications |
Patent application number | Title | Published |
20150226026 | BLOWOUT PREVENTER INSTALLATION AND REMOVAL DEVICES AND RELATED METHODS - 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. | 08-13-2015 |
20130071256 | PUMP WITH WEAR SLEEVE - A pump is disclosed, comprising: a pump block defining a cylinder in which a piston is mounted for reciprocation and positive displacement of fluids from an intake port of the pump block to a discharge port of the pump block; an intake valve located in the intake port of the pump block and a discharge valve located in the discharge port of the pump block; the intake valve having a valve plug that has a closed position in which the valve plug is seated on a valve seat in the intake port; a wear sleeve lining at least a portion of the intake port upstream of the valve seat; a pressure sensor upstream of the intake valve for detecting a pressure condition indicative of failure of the intake valve to provide a seal when the intake valve is in the closed position; and a controller responsive to the pressure sensor to send a signal to stop operation of the pump upon detection of the pressure condition. | 03-21-2013 |