LOGGING A DEVIATED OR HORIZONTAL WELL

A downhole tool to log a horizontal or deviated wellbore includes a production unit and a logging unit. The production unit can fluidly couple to a production tubing positioned in a wellbore that includes a vertical portion and a horizontal portion. The production unit can be positioned in the verti...

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Bibliographische Detailangaben
Hauptverfasser:	Ejim, Chidirim Enoch, Xiao, Jinjiang
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A downhole tool to log a horizontal or deviated wellbore includes a production unit and a logging unit. The production unit can fluidly couple to a production tubing positioned in a wellbore that includes a vertical portion and a horizontal portion. The production unit can be positioned in the vertical portion. The logging unit is coupled to a downhole end of the production unit. The logging unit includes a tractor and logging sensors. The tractor can detach from the logging unit and carry the sensors through the wellbore downhole of the production unit and into the horizontal portion. The sensors can perform logging operations within the wellbore, and the tractor can carry the sensors back to the logging unit. The tractor can be reattached to the logging unit.