MS Directional UPDATED Exam Questions and CORRECT Answers
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Course
MS Directional
Institution
MS Directional
MS Directional UPDATED Exam
Questions and CORRECT Answers
What are the three parameters actually measured in a survey - CORRECT ANSWERInclination
Azimuth
Measured Depth
What is the aproximate inclination of a horizontal well - CORRECT ANSWER- 90 degrees
If the well is drilling due west, how...
MS Directional UPDATED Exam
Questions and CORRECT Answers
What are the three parameters actually measured in a survey - CORRECT ANSWER-
Inclination
Azimuth
Measured Depth
What is the aproximate inclination of a horizontal well - CORRECT ANSWER- 90 degrees
If the well is drilling due west, how would this be expressed as an Azimuth and what are the
units? - CORRECT ANSWER- 270 west
Which town does the 0 degree of longitude pass? Which country is that in? What is it called?
- CORRECT ANSWER- Greenwich England
Prime Meridian
What defines the international date line - CORRECT ANSWER- 180 from Prime Meridian
(Pacific Ocean)
If the equator has zero degrees of latitude, what is the latitude of the North Pole? -
CORRECT ANSWER- 90 degrees
Which depth is measured and which is calculated, MD or TVD - CORRECT ANSWER-
Measured - Measured Depth
Calculated - True Vertical Depth
What does RKB & DF stand for, and what do they have to do with the depth of a well? -
CORRECT ANSWER- RKB - Rotary Kelly Bushing
DF - Drill Floor
Used for reference
, What is the difference between drift and inclination - CORRECT ANSWER- Inclination -
Angle of wellbore parallel to direction of earths gravity
Drift - Inclination greater than 90 degrees (up)
What are the three references for North usually used in directional surveying? - CORRECT
ANSWER- Magnetic North
Grid North
True (Geographic) North
When is grid north and True north the same? - CORRECT ANSWER- Only at a central
meridian
If a well bore survey has a magnetic Azimuth of 125 and the declination for that location 2
East, what is the true north azimuth? - CORRECT ANSWER- 127
Declinations - CORRECT ANSWER- West - subtracted
East - added
Drilling with a highside (gravity toolface) of 135 r would do what to a wells trajectory? -
CORRECT ANSWER- Down + right
What is the crossover angle (inclination threshold) and what is a typical value for most tools?
- CORRECT ANSWER- magnetic to gravity
4 degrees
What does a magnetometer measure - CORRECT ANSWER- Earths local magnetic field
If one of the magnetometer sensors fails, will it affect the inclination reading? - CORRECT
ANSWER- No
If one of the magnetometer sensors fails, will it affect the azimuth reading? - CORRECT
ANSWER- Yes
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