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NGWA - STUDY QUESTIONS - GENERAL DRILLING EXAM
Typology: Study notes
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ArtesianloPressureloislogenerally...lo-loans-- ✔✔...loaloresultlooflogravityloandloconfininglobeds. Whatloislotrueloaboutlothelooriginlooflorocks?lo-loans-- ✔✔1.loSandstoneslowerelooncelosandlodepositsloandlocouldlohavelobeenloriverlosand,lobea chlosands,loorlodunelosands. 2.loSomelolimestoneslocontainlofossilslobecauselotheylowerelooncelothelomuckylobottomsloo floshallowloseas. 3.loShaleslowereloonceloclaylobeds. Sedimentaryloformationslomayloreachlodepthsloofloalomileloorlomore. (T/F)loGroundlowater,lolikelosurfacelowater,lohasloalotendencylotoloflowlodownhill.lo-loans-- ✔✔True. Thelothreelomainlotypeslooflorockloare...lo-loans-- ✔✔...loigneous,losedimentary,loandlometamorphic. Waterlowouldlobeloleastlolikelylofoundloinlowhatlogeologicalloformation?lo-loans--✔✔Granite. (T/F)loMorelothanlo90%loofloourlonation'slofreshlowaterloislounderground?lo-loans--✔✔True. Priorlotolosettinglothelorig,loyouloshould...lo-loans-- ✔✔1.loMakelosurelothereloarelonolooverheadlopowerlolineslowithinloatloleastlo20'looflotheloma st. 2.loLocateloallloburiedlomaterials. 3.loVerifyloyouloareloonlothelorightlopropertyloandlomeetlothelocorrectlosetbacklorequirements . Confinedlospaceloentryloruleslorequire...lo-loans-- ✔✔1.loShoringlooflotrenchlowallslooverlo4'lodeep. 2.loEstablishmentlooflobuddylosystem. 3.loHavelodriller'sloassistantlochecklojacksloaslooperatorlolevelslorig. Inlosettinglouploandlolevelinglothelorig,lothelorightloprocedureloisloto...lo-loans-- ✔✔1.loUselosuitablelojacklopadsloforlostabilization. 2.loPositionlorigloforlominimumloleveling.
3.loHavelodriller'sloassistantlochecklojacksloaslooperatorlolevelslorig. (T/ F)loAlowelllomaylobelousedloaslosewagelodisposallositeloonlyloifloitloislocasedlotolothelobottoml ooflotheloborehole.lo-loans--✔✔False. Whenloconsideringlothelowelllosite,lothelomoreloimportantlothinglotoloconsiderloislothe...lo- loans--✔✔...loplacelowhereloitloisloleastlolikelylotolobelocontaminated. Airloforcedlodownlothelodrilllopipe...lo-loans--✔✔...loclearslodrilllocuttings. Thelobestlomethodlotolodrillloalodomesticlowaterlosupplylowellloinlocavernouslohardlorocklowo uldlobe...lo-loans--✔✔...locablelotool. Theloadvantage(s)loofloreverselocirculationlodrillingloinclude(s)...lo-loans-- ✔✔...loporosityloandlopermeabilityloarelorelativelyloundisturbed. Thelofollowinglodrilllorigloislotheloleastloacceptablelotolodrilllothroughloaloconsolidatedloshalelo inlosandstoneloformation...lo-loans--✔✔...loalobucketlorig. (T/F)loCablelotoollorigsloareloadvantageousloforlothelofollowingloreasons: 1.loStraightnesslooflowell. 2.loMinimumlomaintenance. 3.loEconomicalloUse.lo-loans--✔✔True. (T/F)loDrillinglomudloviscositylocanlobeloaccuratelyloestimatedlobylovisualloinspection.lo- loans--✔✔False. Chainloandlodriveloshaftloguards...lo-loans--✔✔...loshouldlobelokeptloinloplace. Inloperformingloadjustslotolocomponentslothatloarelodrivenlobyloclutchesloand/ orlodriveloshafts,loyoulomust...lo-loans-- ✔✔...loshutlounitlodownloandlolocklooutlobeforeloadjustmentsloarelomade. (T/F)loAlodrillinglofluidloshouldlodoloalllooflothelofollowing: 1.loCoollothelobit. 2.loPromotelolongevity. 3.loRemovelocuttingslofromlothelobitlosurface. 4.loTransportlocuttingslotolothelosurface. 5.loPluglolostlocirculationlozones. 6.loPromoteloholelostability.lo-loans--✔✔True. Alogoodlopreventativelomaintenanceloprogramlowilllocreate...lo-loans-- ✔✔...looperatorslowholohaveloalothoroughlounderstandingloofloequipment.
Pressurelogroutinglorequireslothatlothelogroutlomustlobe...lo-loans-- ✔✔...lounderlosufficientlopressurelotolodriveloitlointolothelozonelotolobelogrouted. Whenloonlylo40'looflocementloislorequiredlotologroutlothelosurfacelocasing,loonelocanloachiev eloalogoodlosealloby...lo-loans-- ✔✔...loplacinglofromlothelobottomlouplousingloalotremielogroutlopipe. (T/ F)loStateloorlofederallolawslodictatelothelominimumlolengthlooflogroutlorequiredloforlovariouslo casinglodiametersloforlocertainlotypeslooflowells.lo-loans--✔✔True. (T/ F)loThelosizeloofloannularlospacelorequiredloforlogroutinglodependsloonlohowlothelowelllowasl odrilled.lo-loans--✔✔True. Whichlooflothelofollowinglomaterialsloislothelomostloaaccepteablelomateriallotolouseloforlogro utingloand/orloholeloabandonment?lo-loans--✔✔Neatlocement. (T/ F)loAlowelllowhichloislofinishedlocompletelylounderground,loforloexampleloalopitlessloadaptor, lodoeslonotloneedloalosanitarylosurfaceloseal.lo-loans--✔✔False. Alowaterlosystemlooperatingloatlo40%lotolo60%lopressurelosettingloindicates...lo-loans-- ✔✔...lothelopumplostartsloatlo 40 loandlowillloshutlooffloatlo60. Onelogallonlooflowaterloweighslohowlomanylopounds?lo-loans--✔✔8. Yourlowellloislo6"lodiameter,lo150'lodeep,loandlohasloswllooflo50'.loHowlomanylogallonslooflow aterloarelowithinlothislowelllocolumnlooflowaterloatlotheloverylobottomlooflothislowell?lo-loans-- ✔✔ 150 logal. Howlomanylogalloonsloareloinloalocubiclofoot?lo-loans--✔✔7. Waterlosystemlopressureloisloexpressedloin?lo-loans--✔✔PSI Onelocubiclofootloequals...lo-loans--✔✔7.4805logallons Thelodifferencelobetweenlostaticlowaterlolevelloandlopumpinglowaterlolevelloinloalowell...lo- loans--✔✔...loislocalledlothelodrawdown. (T/ F)loWelllodevelopmentloproceduresloshouldlobeloablelotolocleanlothelowelllosolothelosandloco ncentrationloinlothelowaterloislobelowlothelomaximumloallowablelolimitlosetloforloparticularlow aterlouse.lo-loans--✔✔True.
Welllodrilledlousingloguarlogumsloandloseverallopolymerslocanloachievelobetterlodevelopme ntlobylousinglo________lomixesloinlothelodevelopmentlowater.lo-loans-- ✔✔Sodiumloorlocalciumlohypochlorite. (T/ F)loAquiferlodevelopmentloislonotloanloeffectivelowaylotoloincreaseloyieldslosubstantially.lo- loans--✔✔False.