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Soehanah Blowout
Oilwell Blowout...
the uncontrolled release of formation fluid from a well being drilled, typically for petroleum production. A blowout is caused when a combination of well control systems fail ( primarily drilling mud hydrostatics and blow-out preventers ) and formation pore pressure is greater than the wellbore pressure at depth. When such an incident occurs, formation fluids begin to flow into the wellbore and up the annulus and/or inside the drill pipe, and is commonly called a kick. If the well is not shut in, a kick can quickly escalate into a blowout when the formation fluids reach the surface, especially when the fluid is a gas, which rapidly expands as it flows up the wellbore and accelerates to near supersonic speeds. Blowouts can cause significant damage to drilling rigs, and injuries or fatalities to rig personnel.