Tracer deployment tools
Tracer injector tool for well investigation
Tracer release method for monitoring fluid flow in a well
Tracing flow of petroleum in underground reservoirs
Tracker injection in a production well
Tracking of particulate flowback in subterranean wells
Transient response process for detecting in situ retorting condi
Treatment of contaminated water in clays and the like
Treatment of steam feedwater with CO.sub.2 to reduce oil well re
Treatment well tiltmeter system
Tubing collar position sensing apparatus, and associated methods
Tubing conveyed sampler
Tubing elongation correction system & methods
Tubing or drill pipe conveyed downhole tool system with...
Two dimensional microwave chemical flood testing means and metho
Underground temperature and pressure measuring system for hot-ex
Underground well kick detector
Unidirectional filter for hydraulic systems
Universal downhole tool control apparatus and methods
Use of capillary-membrane sampling device to monitor oil-drillin