Abstract

Newly developed instrumentation for Radioactivity Well Logging is described whereby two curves, the Gamma-Ray Curve and the Neutron Curve, are made simultaneously, together with a record of the casing collar positions, on one upward passage of the logging instrument. A functional description of all of the system elements is provided, showing how the resulting log is continuously drawn in the surface vehicle on a multi-pen recorder, with consequent saving in rig-time and elimination of possible depth discrepancy between curves, which may exist where successive runs are required. The application of radioactivity logs to production problems is briefly discussed.

First Page Preview

First page PDF preview
You do not currently have access to this article.