ELECTRONIC DEADMAN/AUTOSHEAR CIRCUIT

摘要

A blowout preventer control system comprising: a blowout preventer comprising one or more casing shear rams and one or more blind shear rams; a casing shear ram close chamber; a blind shear ram close chamber; a first SPM valve; a second SPM valve; a first solenoid valve; a microprocessor; and a hydraulic fluid source.

主权项

1. A blowout preventer control system comprising:
a blowout preventer comprising one or more first rams and one or more second rams; a first ram close chamber, wherein the first ram close chamber is in fluid communication with the one or more first rams; a second ram close chamber, wherein the second ram close chamber is in fluid communication with the one or more second rams; a first valve, wherein the first valve is in fluid communication with the first ram close chamber; a second valve, wherein the second valve is in fluid communication with the second ram close chamber; a third valve, wherein the third valve is in fluid communication with the second valve; a microprocessor, wherein the microprocessor is in electrical communication with the third valve; and a hydraulic fluid source, wherein the hydraulic fluid source is in fluid communication with first valve and the second valve.