![]() ![]() On the night of Apat 8:45 pm a kick occurred and oil and gas entered the well bore. It can be activated manually or by automated emergency systems. If those devices should fail to work, the last resort is a set of metal blades which form a blind shear ram designed to cut the drill pipe and seal the well. To do this the crew can manually close rams (right side below) and rubber devices called “annular preventers” (left side below). This is done by sealing the annular space around the drill pipe. ![]() If a kick occurred, the BOP functions to prevent flammable oil and gas from traveling up the riser to the drilling rig. The BOP is connected to the rig by a large diameter pipe called a riser. If the mud barrier fails or is removed, the next line of defense is the blowout protector (BOP) located at the sea floor. The drill mud creates a barrier between the undersea oil and gas and the piping that leads to the rig. A kick if uncontrolled can lead to a “blow-out” (uncontrolled release of flammable oil and gas from the well). Drilling mud is pumped down the hollow drill pipe to the drill bit, where it exits the pipe and then is flushed back up the borehole to the surface. Water, crude oil, natural gas are under pressure in subsea rock and sediment.Īn unplanned flow of these fluids is called a “kick”. We discuss briefly some of the most significant Technical, Organizational, Regulatory factors that caused or contributed to the gravity of the accident. The Deepwater Horizon accident resulted in 11 deaths and 700,000 T of crude oil dumped into the Gulf of Mexico causing the largest environmental disaster in United States history. ![]()
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