• Materials Science
  • Published 1975

Simultaneous Extension of Continuous Functions

  title={Simultaneous Extension of Continuous Functions},
  author={Eric K. van Douwen},
This invention relates to determining the oil saturation in an underground rock reservoir by use of a log-inject-log-inject-log technique. Thermal neutron decay time logs are taken in the native state, after fresh water injection and again after an alcohol injection followed by formation type water. These logs are used in an equation to determine oil saturation without need of knowledge of porosity or thermal neutron capture cross section of the formation rock.