LWD Services

INP (Instant Neutron Porosity)

Send fast neutrons to formation through the neutron source installed on the instrument, the instrument detector measures the amount of the thermal neutrons reaching the instrument after formation attenuation, determines the hydrogen index of the formation and calculates its porosity. The instrument adopts Am-241/Be neutron source and HE3 tube detector, and is installed with ultrasonic transducer for clearance detection and compensation calculation.