METHOD AND APPARATUS FOR DETERMINING THE TEMPERATURE OF SUBTERRANEAN WELLS USING FIBER OPTIC CABLE

摘要

Methods and apparatuses to determine the temperature profile of a wellbore using a fiber optic cable (40) and an anchor (50) are disclosed. Furthermore, a pressurized wellhead spool (100) that couples to a standard Christmas tree structure (10) on a well head to facilitate the injection of fiber optic cable (40) into an oil and gas well is disclosed. The wellhead spool (100) is portable and may be connected to fiber optic cable (40) already located at the site, for quick connection to on-site instrumentation. A method of using the apparatuses disclosed to measure wellbore temperature at multiple depths of investigation is also disclosed.