Halliburton Energy Services, Inc.

Luk Servaes

Stefano Mancini

Shilin Chen

John Ransford Hardin, Jr

Olivier Mageren

John Gerard Evans

David Wayne Cawthon

Eric Lauret

John Ransford Hardin

A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the drill bit. The reamer is adjustable between a first diameter and a second diameter that is larger than the first diameter. The hole opener is coupled with, and positioned uphole from the reamer.

System and method for one-trip hole enlargement operations

Teachings of the disclosure are directed to a reamer and/or bit interaction model system and method. The method may include receiving performance data regarding a cutting structure, and calculating a characteristic curve, using the performance data. The characteristic curve may be weight-based and/or torque-based. The method may also include storing the characteristic curve. In particular embodiments, the characteristic curve may include either weight on cutting structure or torque on the cutting structure, as a function of the rate of penetration.

Reamer and bit interaction model system and method

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Lafayette, LA, United States of America

Luk Servaes