LowReP

Question 1

List a few depositional environments which are thin-bed-prone

Answer 1

• Delta front
• Lower shoreface
• Sandy tidal channel

Question 2

What does the Thomas-Stieber Shaly Sand model assume?

Answer 2

• There are only two rock types (high porosity clean sand and low porosity pure shale)
• There is no change in shale type
• GR radioactivity is proportional to volume
• Constant background radiation
• Counting yields will not change as rock types intermixed

Question 3

What are the uncertainties in the Earth Model?

Answer 3

• limited accuracy of end point selection
• uncertainty in fluid and formation parameters
• tool noise of the log measurement
• resistivity model assumptions

Question 4

What are the main inputs in LowReP?

Answer 4

• GR
• Res
• Den
• Neu

Question 5

What are the main outputs of the LowReP?

Answer 5

• Laminated shale fraction
• Sand porosity
• Sand HC saturation