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NGWA page 6 questions with answers.

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Exam (elaborations)

NGWA page 6 questions with answers.

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17 pages

2025/2026

Institution NGWA - General Drilling

Course NGWA - General Drilling

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NGWA page 6 questions with answers.

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NGW A /

page 6 question s w ith an sw er s
/ // // // // //

What /

causes
/ /

differential
/ /

sticking?
/ /

How
/ /

can
/ /

you
/ /

best
/ /

control
/ /

against
/ /

it
/ /

happening? -
/ // /

CORRECT
/ /

ANSWERS(S)✅✅Differential
/ /

sticking
/ /

occurs
/ /

when
/ //

a drill pipe gets stuck against the walls of the borehole.
// // // // // // // // // //

maintain /

proper
/ /

mud
/ /

weight,
/ /

ensure
/ /

good
/ /

,/ hole /

/ cleaning /

/ to/

/ prevent /

/ cuttings /

/ buildup, /

/ monitor /

/ for /

/ pressure /

/ changes, /

/ and /

/ use /

/ drilling /

/ techniques /

/ that /

/ minimize contact between the pipe and the borehole wall
// // // // // // // //

What /

are
/ /

bentonite
/ /

materials? -
/ // /

CORRECT
/ /

ANSWERS(S)✅✅Bentonite
/ /

materials
/ /

are
/ /

clay
/ /

minerals
/ /

rich
/ /

in
/ /

, / montmorillonite, /

/ known /

/ for /

/ their /

/ absorbency /

/ and /

/ swelling /

/ properties, /

/ commonly /

/ used in drilling fluids and various industrial applications.
// // // // // // //

Gel-
strength /

refers
/ /

to
/ /

what
/ /

property
/ /

in
/ /

drilling
/ /

fluid? -
/ // /

CORRECT
/ /

ANSWERS(S)✅✅the
/ /

ability of drilling fluid to develop a gel-
/ // // // // // // //

like /

consistency
/ /

when
/ /

at
/ /

rest,
/ /

which
/ /

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Uploaded on: February 2, 2026
Number of pages: 17
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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