Management of drill string temperatures
AssigneeSchlumberger Technology Corporation
InventorsDeopaul Dindial, Ashers Partouche, Mikhail Charupa, Ahmed Moge Ali, Yan Fiona Li, Ahmed A. Rasool
Life of this patent
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Abstract
Methods, systems, and computer readable storage mediums for managing downhole operations are disclosed. To manage downhole operations, the temperatures of various components of tools used in downhole environments may be taken into account. To preserve the life of the components of the tools, cooling flows may be used to retain temperatures of the components within operating ranges. By retaining the temperatures of the components within the operating ranges, the components may be less likely to become damaged, become impaired, and/or operate in undesired manners.
Claims20
A method of operating a tool string, the method comprising:
- while the tool string is being moved from a first position to a second position in a well:
- circulating a cooling flow to the tool string using a supply line and an annulus of the well;
- dividing, by a manifold within an interior of a body of the tool string, the cooling flow into a first sub-flow along a first flow line between the manifold and a first port, a second sub-flow along a second flow line between the manifold and a second port, and a third sub-flow along a third flow line between the manifold and a third port, wherein the first, second, and third flow lines are within the interior of the body, and the first, second, and third ports are in fluid communication with the annulus;
- ejecting the first sub-flow out of the body of the tool string via the first port at a first location along the tool string to locally cool a region of the well;
- directing the second sub-flow through the second flow line internally through a first portion of the tool string to the second port at a second location along the tool string to cool, at least, one or more electronic components within the interior of the body positioned in the first portion of the tool string;
- and
- ejecting the second sub-flow out of the body of the tool string via the second port at the second location along the tool string.
A system, comprising:
- a processor;
- and
- a memory coupled to the processor to store instructions, which when executed by the processor, cause operations for operating a tool string to be performed, the operations comprising:
- while the tool string is being moved from a first position to a second position in a well:
- circulating a cooling flow to the tool string using a supply line and an annulus of the well;
- dividing, by a manifold within an interior of a body of the tool string, the cooling flow into a first sub-flow along a first flow line between the manifold and a first port, a second sub-flow along a second flow line between the manifold and a second port, and a third sub-flow along a third flow line between the manifold and a third port, wherein the first, second, and third flow lines are within the interior of the body, and the first, second, and third ports are in fluid communication with the annulus;
- ejecting the first sub-flow out of the body of the tool string via the first port at a first location along the tool string to locally cool a region of the well;
- directing the second sub-flow through the second flow line internally through a first portion of the tool string to the second port at a second location along the tool string to cool, at least, one or more electronic components within the interior of the body positioned in the first portion of the tool string;
- and
- ejecting the second sub-flow out of the body of the tool string via the second port at the second location along the tool string.
A non-transitory machine-readable medium having instructions stored therein, which when executed by a processor, cause operations for operating a tool string to be performed, the operations comprising:
- while the tool string is being moved from a first position to a second position in a well:
- circulating a cooling flow to the tool string using a supply line and an annulus of the well;
- dividing, by a manifold within an interior of a body of the tool string, the cooling flow into a first sub-flow along a first flow line between the manifold and a first port, a second sub-flow along a second flow line between the manifold and a second port, and a third sub-flow along a third flow line between the manifold and a third port, wherein the first, second, and third flow lines are within the interior of the body, and the first, second, and third ports are in fluid communication with the annulus;
- ejecting the first sub-flow out of the body of the tool string via the first port at a first location along the tool string to locally cool a region of the well;
- directing the second sub-flow through the second flow line internally through a first portion of the tool string to the second port at a second location along the tool string to cool, at least, one or more electronic components within the interior of the body positioned in the first portion of the tool string;
- and
- ejecting the second sub-flow out of the body of the tool string via the second port at the second location along the tool string.
Dependencies are inferred from the claim text.