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US 2026/0309004 A1Published application
Drilling in hot zones on coiled tubing
AssigneeEavor Technologies Inc.
InventorsChristian Besoiu, Aleksandr Vetsak, Matthew Toews
Life of this patent
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Abstract
Drilling in a wellbore in a subterranean zone with a drilling string including a coiled tubing. The coiled tubing having a bulk, length normalized radial thermal resistance to heat transfer through a wall of the tubing of at least 0.008 m K/W. Flowing a drilling fluid through the drilling string while drilling, where a ratio of a drilling string bulk density to a drilling fluid bulk density is 2 or less.
Claims22
A method, comprising:
- drilling a wellbore in a subterranean zone with a drilling string having a bulk, length normalized, radial thermal resistance to heat transfer through a wall of the tubing of at least 0.008 m K/W;
- and
- flowing a drilling fluid through the drilling string while drilling, where a ratio of a drilling string bulk density to a drilling fluid bulk density is 2 or less.
A system, comprising:
- a drilling string comprising having a bulk, length normalized radial thermal resistance to heat transfer through a wall of the tubing greater than 0.008 m K/W;
- and
- a source of drilling fluid, where a ratio of a drilling string bulk density to a drilling fluid bulk density is 2 or less.
Dependencies are inferred from the claim text.