文档介绍：Carbon/Oxygen Logging
MSI C/O
Nuclei of the
elements
Fast neutrons
Gamma rays
C :
O :
Neutrons slowed down,
and captured
The concept of MSI C/O
Specification of MSI C/O
MSI C/O tool suited for:
* Normally, C/O tool is used in cased hole. It can be used in openhole if the borehole wall is regular and invasion is not heavy.
* C/O tool can determine oil saturation directly if porosity of formation is more than 20%.
Location of hydrocarbons in fresh water formation
tons oil per day
tons fluid,30%
water
tons oil per day
54 tons fluid, 80% water
Location and monitoring of oil/water contact