NGWA - STUDY GUIDE – GENERAL
EXAM WITH CORRECT ANSWERS
Define oa owater owell. o- ocorrect oanswers o-An oexcavation oor ostructure
ocreated oin othe oground oby odigging, odriving, oboring, oor odrilling oto oaccess
ogroundwater.
List oall othe oparts oof oa ocable otool odrill ostring. o- ocorrect oanswers o-Drill obit
Drill ostem
Rope osocket
Jars
Swivel
Fishing otools o(when oneeded)
List oall othe oparts oon oa orotary odrill ostring. o- ocorrect oanswers o-Drill obit
Drill opipe
Drill ocollar
Kelly o(for otraditional orotary origs)
Stabilizers
, Crossover osubs
Tool ojoints
Float ovalve o(optional)
Name oand odescribe o4 omethods oof odeveloping oa owell. o- ocorrect oanswers o-
Airlifting
Surging
Jetting
Bailing
List o3 otypes oof obailers ofor ocable otool odrilling oand othe opurpose ofor oeach. o-
ocorrect oanswers o-Sand, ovalve, ojunk.
How odo oyou odress oa ocable otool obit? o- ocorrect oanswers o-Dressing oa ocable otool
obit oinvolves oreshaping oand osharpening othe obit oto oensure oeffective odrilling.
1. oInspection
2. oHeating
3. oForging
4. oTempering
5. oFinal oSharpening
What otype oof omaintenance ois oused oon orotary obits? o- ocorrect oanswers o-Inspection
Cleaning
Lubrication
Sharpening oor oReplacement
Monitoring oTorque oand oWeight
What ois oa owell oscreen? o- ocorrect oanswers o-A owell oscreen ois oa ofiltering odevice
oplaced oat othe obottom oof oa owell, ousually oin othe owater-bearing oformation, oto
oallow ogroundwater oto oenter othe owell owhile okeeping oout osediment, osand, oand
oother ofine omaterials.
List othe ocommon otypes oof ofishing otools oand oexplain ohow othey oare oused. o-
ocorrect oanswers o-Overshot
Spear
Fishing oMagnet
Junk oBasket
Impression oBlock
How ois othe oscreen osized oin osand oand ogravel owells? o- ocorrect oanswers o-Grain
oSize oAnalysis
Slot oSize oSelection
Screen oLength
Name othe ofour ocables oon oa ocable otool orig oand otell owhat othey odo. o- ocorrect
oanswers o-Drilling oLine o(Mainline): oThis ois othe oprimary ocable oused oto oraise oand
EXAM WITH CORRECT ANSWERS
Define oa owater owell. o- ocorrect oanswers o-An oexcavation oor ostructure
ocreated oin othe oground oby odigging, odriving, oboring, oor odrilling oto oaccess
ogroundwater.
List oall othe oparts oof oa ocable otool odrill ostring. o- ocorrect oanswers o-Drill obit
Drill ostem
Rope osocket
Jars
Swivel
Fishing otools o(when oneeded)
List oall othe oparts oon oa orotary odrill ostring. o- ocorrect oanswers o-Drill obit
Drill opipe
Drill ocollar
Kelly o(for otraditional orotary origs)
Stabilizers
, Crossover osubs
Tool ojoints
Float ovalve o(optional)
Name oand odescribe o4 omethods oof odeveloping oa owell. o- ocorrect oanswers o-
Airlifting
Surging
Jetting
Bailing
List o3 otypes oof obailers ofor ocable otool odrilling oand othe opurpose ofor oeach. o-
ocorrect oanswers o-Sand, ovalve, ojunk.
How odo oyou odress oa ocable otool obit? o- ocorrect oanswers o-Dressing oa ocable otool
obit oinvolves oreshaping oand osharpening othe obit oto oensure oeffective odrilling.
1. oInspection
2. oHeating
3. oForging
4. oTempering
5. oFinal oSharpening
What otype oof omaintenance ois oused oon orotary obits? o- ocorrect oanswers o-Inspection
Cleaning
Lubrication
Sharpening oor oReplacement
Monitoring oTorque oand oWeight
What ois oa owell oscreen? o- ocorrect oanswers o-A owell oscreen ois oa ofiltering odevice
oplaced oat othe obottom oof oa owell, ousually oin othe owater-bearing oformation, oto
oallow ogroundwater oto oenter othe owell owhile okeeping oout osediment, osand, oand
oother ofine omaterials.
List othe ocommon otypes oof ofishing otools oand oexplain ohow othey oare oused. o-
ocorrect oanswers o-Overshot
Spear
Fishing oMagnet
Junk oBasket
Impression oBlock
How ois othe oscreen osized oin osand oand ogravel owells? o- ocorrect oanswers o-Grain
oSize oAnalysis
Slot oSize oSelection
Screen oLength
Name othe ofour ocables oon oa ocable otool orig oand otell owhat othey odo. o- ocorrect
oanswers o-Drilling oLine o(Mainline): oThis ois othe oprimary ocable oused oto oraise oand
