Application of pulse neutron oxygen activation logging technology in Xinjiang oilfield;

As the pulse neutron oxygen activation logging can detect the speed and direction of water both inside and outside of the tubing, the casing and the logging well result is not effected by the fired viscosity and the macropore path formed in the formation in the well, it can promote the logging data quality perfectly obtained from the polymer injection well, and bypath channel well.

The basic theory, the structure, the run mode, and the application range and effect of several flowmeters, such as the spinner flowmeter, the target flowmeter, and the electromagnetic flowmeter, are mainly presented in this paper, where the radioactive cross-correlation flowmeter and the neutron activated oxygen tool are also described.

Limitations and Developing directions of Pulsed Neutron Logging;

Expanded application study on pulsed neutron logging technology in Huabei Oilfield

In order to understand the difference between responses of pulsed neutron logging in fiberglass casing and steel casing wells,the responses of 3 types of pulsed neutron logging tool(PNN,TMD and RPM) were simulated by Monte Carlo code MCNP starting with the component and nuclear physics characteristic of fiberglass casing.