Power source section
-Usually includes electric pumps, pneumatic pumps, hydraulic pumps, etc. Electric pumps are generally driven by motors and can provide stable power output. They are mainly used for controlling blowout preventers during normal drilling operations. Pneumatic pumps are powered by compressed air and can function in emergency situations such as power outages. Hydraulic pump is a key equipment for generating hydraulic power, which converts electrical or pneumatic energy into hydraulic energy and provides power for the entire control device. The working pressure and flow rate of these pumps are designed according to the working requirements of the blowout preventer, and the general working pressure can reach several tens of megapascals.
-Energy storage part
-Energy storage devices are mainly devices for storing hydraulic energy, usually composed of multiple high-pressure capsule or piston type energy storage devices. Its function is to quickly release stored hydraulic energy in emergency situations when the power source cannot provide sufficient power in a timely manner, causing the blowout preventer to shut down quickly. For example, in the event of a sudden power outage or pump failure, the energy storage device can ensure that the blowout preventer completes its closing action in a short period of time, preventing a blowout. The capacity of the energy storage device is determined based on factors such as the specifications of the blowout preventer and the required number of closures, and can generally store thousands of liters of hydraulic oil.
-Control section
-This section includes various control valves, pressure sensors, and control panels. Control valves are used to regulate the flow of hydraulic oil, thereby achieving control over various components of the blowout preventer. Pressure sensors can monitor the pressure of hydraulic systems in real time and issue timely alarms when abnormal pressure occurs. The control panel is the interactive interface between the operator and the control device, with various buttons, indicator lights, etc., used to manually control the opening and closing of the blowout preventer, as well as display the working status of the system, such as hydraulic pressure, accumulator liquid level, and other information.
-Connecting pipeline section
-It is mainly a high-pressure hydraulic pipeline that connects the power source, energy storage device, and control part with the blowout preventer at the wellhead. These pipelines need to be able to withstand high pressure, usually using high-strength steel pipes or high-pressure hoses. The connection of pipelines should ensure good sealing to prevent hydraulic oil leakage. On drilling platforms, these pipelines are usually laid along the wellhead or specialized channels, and their length depends on the distance between the wellhead and the control device, usually around tens of meters.
