IWCF Drilling Level 4: e-rigworld.odo...
IWCF Drilling Level 3: e-rigworld.odo...
Well control equipment. The BOP control unit consists of at least one electric pump and two or three air pumps. Its purpose is to pump hydraulic fluid into the accumulator bottles. The sizing of the pumps depends on the volume required to be pumped into the accumulator bottles. With the number of pumps available in the unit, the system should be charged within 15 minutes. As per API, with accumulators are isolated, each pump system should be capable of closing annular preventer, opening one HCR, and provide the operating pressure level recommended by the annular BOP manufacturer to effect a seal within 2 minutes. Before commencing a visual inspection, ensure power to the electric pump and air supply to the air pump is turned off.
Air Pumps :
Check the condition of the air filter and lubricant. Ensure that the lubricator contains a sufficient amount of oil. Inspect the condition of the air line running into the pumps, and ensure that the high-pressure discharge lines are secured to the control unit. The suction filter should be cleaned periodically. This provides an opportunity to assess the condition of hydraulic fluid by exposing the type of contaminant present. A hydro-pneumatic pressure switch is connected in the airl ine to automatically shut off the air pump when desired accumulator pressure is reached. The cut-off limit of the air pump can be increased or decreased by adjusting the spring compression by tightening or loosening the adjusting nut provided in the pressure switch.
27 авг 2024
