methods and means for the generation of porosity images of formation azimuth neutrons and cement volumes around a borehole

摘要

a first example of azimuth neutron porosity tool for generating formation image and cement volumes around a borehole is provided, the tool including at least one internal length comprising a probe section, in which said probe section probe additionally comprises probe-dependent electronic components; a slip ring and motor section; and a plurality of electronic components of tool logic and switches. an alternative azimuth porosity tool for generating formation image and cement volumes around a borehole is also provided, the tool including at least one distant space detector; a nearby space detector; and a source located inside a moderator shield that rotates around an internal tool axis.