TRIPLE PHASE EVALUATION OF FORMATION FLUIDS

摘要

Various embodiments include apparatus and methods to conduct a triple phase evaluation of a formation. The evaluation can be performed using a pulsed-neutron tool including a long detector and a detector to make sigma measurements. Additional apparatus, systems, and methods are disclosed.

主权项

1. A method comprising:
determining a gas saturation of a formation using a long detector of a pulsed-neutron tool; and determining a volume of gas, a volume of water, and a volume of oil in the formation using a neutron sigma measurement, the determined gas saturation, a measured porosity of the formation, and a mass balance of the formation.