But they become extremely dangerous when they build up inside the drill column
of a well.
Investigators know the explosion was triggered by a bubble of methane gas that escaped from the well and shot up the drill column
, expanding quickly as it burst through several seals and barriers before igniting.
The original blowout was triggered by a bubble of methane gas that escaped from the well 18,000 feet into the earth and shot up the drill column
, expanding quickly as it burst through several seals and barriers before exploding at the rig one mile above the seafloor.
Rescued rig workers described how a bubble of methane gas escaped from the well and expanded as it shot up the drill column
The tools are - Hand tools, measuring instruments and control,- Hand tools (screwdrivers, pliers, wrenches) and other measuring hand instruments and electrical control, mechanical,- Site and workshop equipment,- Tools heavy and commissioning (fixed or mobile): compressor, pressure washer, hacksaw / wood, a drill column
, other machine tools, spare parts and accessories of machine tools,- Power tools, electrical, thermal, pneumatic and hydraulic.
Part VIII: a) Drill column
with mechanical feed - 1 piece
engine lathes, shears, cnc machining center, universal center lathes, cnc tool grinder drill column
and table saw, floor sander, hand rolls (stranding), table grinder, drill floor.