|The HNGR™ tool is a section of the Hostile Environment Applications Tools system (The HEAT™ Suite). Along with the HGNI tool, the HNGR tool can be run alone or with any other hostile service in either an open or cased hole.
The HNGR too is used to record naturally occurring gamma radiation. Gamma ray measurements are used for geologic correlation, depth control, and computing shale and clay volumes. Shale volume data can then be applied to correct the apparent porosities indicated by the acoustic, neutron, and density logs. When wellbore conditions are not favorable for a definitive SP response, a gamma ray curve is recorded in its place.
HEAT™ Suite Logging Service
Hostile Dual Induction Log (HDIL™)
Hostile Environment Dual Laterolog (HEDL™) Tool
Hostile Rotary Sidewall Coring Tool (HRSCT™)
Hostile Sequential Formation Tester (HSFT™)