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WellYconstructionYisYcomprisedYofYtheYfollowingYcomponets?Y-YcorrectYanswersdrilling,YinstallationYofYcasing,YplacingYwellYscreens,Ygrouting,YDEVELOPMENT
MinimumYgroutingYdistance?Y-YcorrectYanswers10'YisYcode
ArtesianYWellY-YcorrectYanswersArtesianYpressureYisYtheYresultYofYgravityYandYtheYconfiningYAquifer
ArtesianYWellYLayersY-YcorrectYanswersCONFININGYLayerY(top)
CONFINEDYAQUIFERY(middle)
IMPERMEABLEYLayerY(bottom)
TypesYofYdrillingYtechniquesY-YcorrectYanswersCableYtool,YAirYrotary,YMudYrotary,YReverseYcirculationYrotary,YJettingY&YDriving
GROUTINGY-
YcorrectYanswersISYTHEYACTYOFYINJECTINGYCERTAINYSUBSTANCESYINTOYVOIDYSPACEYTOYREDUCEYORYELIMINATEYTHEIRYPERMEABILITY,YCONSOLIDATEYORYINCRE
ASEYTHEIRYSTRENGTH.
(FillingYspaceYbetweenYtheYcasingYandYboreYholeYwithYcementYorYclay)
MethodsYofYGroutingYincludeY-YcorrectYanswersTremieYpipeYoutsideYcasing,
TremieYpipeYinsideYcasing,
CasingYmethodYorYHalliburtonYmethod
NeatYCementYRatioY-YcorrectYanswersCementYandYWater,Y5.5YtoY6galYofYh20YtoY1YcubicYfootYofYPortlandYcementYwithY3%YbentoniteYtoYpreventYshrinkage
TremieYPipeYOutsideYCasingY-YcorrectYanswersGroutYplacedYthroughYsmallYpipeYoutsideYcasing,
CenteringYguidesYareYplacedYalongYlengthYofYcasing,
LowerYendYofYcasingYhasYdrillableYplug,