drill eng Flashcards
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Electrical power generators found in rigs typically use diesel-powered internal combustion engines called
prime movers”
a large pulley system used to lower and raise drillstring, casing, and equipment into and out of the well.
Hoisting System
Main components: drilling line, drawworks, crown block, travelling block, deadline anchor, and reserve drum
Hoisting System
Lifts equipment and drillstrings up and down
Drawworks
Driller-controlled clutch and gearing system
Drawworks
Uses brake system when lowering equipment
Drawworks
Uses a large revolving drum
Drawworks
Electric motors and gearing system runs the drum
Drawworks
A wire rope called the ______ is spooled around the drum
drilling line
an assembly of sheaves (or pulleys) over which the drilling line is reeved
Crownblock
mounted on beams at the top of the derrick
Crownblock
Can have a fixed or a mounted hook
Travelling Block
Allows the drillstring to be raised or lowered
Travelling Block
an arrangement of pulleys through which the drilling line is reeved
Travelling Block
A large hook with a snap-shut locking device suspended from the travelling block
Drilling Hook
Used to suspend the drillstring
Drilling Hook
May be used to hang the top drive
Drilling Hook
connected to the travelling block.
Elevators
A set of clamps used when running or pulling the drillstring or casing into or out of the hole
Elevators
a heavy-duty wire rope made out of six strands of improved plow steel
Drilling Line
Part of the drilling line reeled to the drawworks
Fastline
travels with greater velocity than any other portion of the line
Fastline
that part of the drilling line between the crown block and the deadline anchor
Deadline
remains stationary as the travelling block is hoisted
Deadline
remains stationary as the travelling block is hoisted
Deadline anchor
(1) the travelling block is lowered to the drillfloor; (2) the dead line anchor is unclamped, and (3) some of the reserve line is threaded through the sheaves on the travelling block and crown block onto the drawworks drum
Slip operation-
done if the drawworks drum is full; (1) the travelling block is lowered to the drillfloor; (2) the dead line anchor is unclamped, and (3) the line on the drawworks is unwound and discarded before the reserve line is threaded through the system onto the drawworks drum
Slip and cut operation