System and Method for Managing Temperature in a Wellbore
AssigneeSchlumberger Technology Corporation
InventorsEdward M. Tollefsen, Daniel Crowell, Alexis S. Husser, Barbara J.A. Zielinska
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Abstract
A system and a method manage temperature in a wellbore. A thermal barrier may be positioned within the drill pipe and/or the drill collars to obtain a desired downhole temperature and/or control the effect of thermal energy in high-angle and horizontal wellbores. Downhole measurements, such as real-time measurements and/or recorded measurements, may be used to update models, such as steady state models and/or dynamic models. The downhole measurements may validate the static temperature gradient and may provide information about the thermal characteristics of the one or more formations in which the wellbore is located.
Claims20
A method for managing temperature in a wellbore, the method comprising:
- determining at least one desired temperature for at least one depth of the wellbore during drilling;
- and
- positioning at least one drill string component having a thermal barrier within a drill string wherein at least one position of the at least one drill string component having the thermal barrier is determined based on the at least one desired temperature.
A system for managing temperature in a wellbore, the system comprising:
- a drill string at least partially formed by wired drill pipe;
- at least one sensor distributed along the drill string which are configured to obtain at least one temperature measurement transmitted by the wired drill pipe wherein a temperature model generated before initiation of drilling is adjusted based on the at least one temperature measurement;
- and
- a drill string component having a thermal barrier wherein a position of the drill string component is determined based on the temperature model.
A method for managing temperature in a wellbore, the method comprising:
- positioning at least one thermally insulated drill string component within a drill string;
- transmitting at least one temperature measurement obtained by at least one sensor located along the drill string wherein wired drill pipe which forms at least a portion of the drill string transmits the at least one temperature measurement;
- and
- adjusting a drilling parameter based on the at least one temperature measurement.
Dependencies are inferred from the claim text.