to test the southerly limits of the known massive sulphide mineralization(passive) was designedDrill hole CURI-255
In this papercausedfailure accidents of drill pipe
four things : 1 ) the wrong tool / drill itself ; 2 ) the workpiece material ; 3 ) the machine itself ; and 4 ) the setup of the machine(passive) is caused byDrill / tool failure
spline wear and damagecan resultin drill bit shank failure
the fastenerscausesdrive bit failure
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Impact and high horsepower drillsmay causedamage to Drill
by drilling mud and cement(passive) caused bydrilling damage
by oil - based drill - in fluids in open hole sections of production and injection wells(passive) caused bydrilling damage
additional friction and heatcan ... causefailure of the drill bit
A small design variation resulted in inconsistent loadscausingdrill failure
improper drilling or operating conditionscan leadto drill failure
resulted in inconsistent loadscausingdrill failure
A small variation resulted in inconsistent loadscausingdrill failure
the cutting edgeleadingto a drill failure
by the rock movement(passive) caused bydrilling failure
can be easily stalledthereby causingdrilling failure
DrillsSetsDrill Bit Type Drill Bit
by too much length of the pilot hole drilling(passive) are ... caused bydifficulty of drill bit
borehole(passive) caused byborehole failure
sawsetdrill bit for hole
stresscan causefailures in the drilling
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Revealing CausesLeadingto Drilling Failures
high bend angle mud motors(passive) caused bydrilling dysfunction
at low speed(passive) was set7]The drill
to test the southerly limits of the known massive sulphide mineralization and further assess the pit wall geology(passive) was designedDrill hole CURI-255
Uneven or large build up of debriscan causedrill slippage
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drilling issues(passive) caused bydrilling issues
in costly delayscan resultin costly delays
in ruined work products and injurycan resultin ruined work products and injury
skin(passive) caused byskin
from progressive fatigue on the drill lineresultedfrom progressive fatigue on the drill line
the mudflow(passive) was caused bythe mudflow
in additional costsresultsin additional costs
in the firing of all six torpedoes of the salvoresultedin the firing of all six torpedoes of the salvo
an electric wire(passive) was caused byan electric wire