As for the conventional logging in sidetracking slim hole horizontal wells which were opened through casings in the several old wells of North Jiangsu Oilfield, the paper discussed lag time selection, cutting bailing and lithology identification during cutting logging, analyzed the influence on conventional fluorescence logging, and pointed out difficult.

A calculation of cuttings lag time for foam drilling

Optimization of scan delay time for multi-slice spiral CT angiography of portal venous in liver cirrhosis;

The study on delay time of EEG sequence;

Investigation of several delay times in operation process of multi-cycle pulse detonation engine;