System For Logging While Running Casing

摘要

A well logging while casing instrument system includes a segment of pipe having at least one window therein corresponding to selected well logging instrument sensors. The segment of pipe has at least one of a float collar, a reaming shoe or a casing drill bit attached to one end thereof. At least one well logging instrument is disposed inside the segment of pipe. The at least one well logging instrument includes at least one sensor disposed at longitudinal position corresponding to the at least one window. The at least one well logging instrument includes a fishing neck at one longitudinal end thereof to enable retrieval of the at least one well logging instrument from the interior of the segment of pipe.