Garter spring including spacer elements
AssigneeHalliburton Energy Services, Inc.
InventorsAndrew Wei Xue Toh, Scott Wallace, Ashish Khaparde, Anthony Phan
Life of this patent
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Abstract
Provided is a garter spring, a downhole tool and a well system. The garter spring, in one aspect, includes a coiled spring member having an inside diameter (ID1) and an outside diameter (OD1). The garter spring, in accordance with this aspect, further includes a plurality of spaced balls located within the inside diameter (ID1) of the coiled spring member, as well as ones of spacer elements located in gaps between the plurality of spaced balls.
Claims18
A garter spring, comprising:
- a coiled spring member having an inside diameter (ID1) and an outside diameter (OD1);
- a plurality of spaced balls located within the inside diameter (ID1) of the coiled spring member;
- and
- ones of spacer elements located in gaps between the plurality of spaced balls, wherein the ones of spacer elements are ones of springs having an inside diameter (ID2) and an outside diameter (OD2) located in the gaps between the plurality of space balls, and wherein the ones of springs are fixed coupled within the coiled spring member.
A downhole tool, comprising:
- an elongate mandrel;
- and
- a seal assembly encircling the elongate mandrel, the seal assembly configured to move between an unset state and a set state, the seal assembly including:
- a seal element encircling the elongate mandrel and configured to radially deform into contact with a wall of a wellbore when the seal assembly moves from the unset state to the set state;
- and
- a garter spring coupled with the seal element, the garter spring including:
- a coiled spring member having an inside diameter (ID1) and an outside diameter (OD1);
- a plurality of spaced balls located within the inside diameter (ID1) of the coiled spring member;
- and
- ones of spacer elements located in gaps between the plurality of spaced balls, wherein the ones of spacer elements are ones of springs having an inside diameter (ID2) and an outside diameter (OD2) located in the gaps between the plurality of space balls, and wherein the ones of springs are fixed coupled within the coiled spring member.
A well system, comprising:
- a wellbore extending through one or more subterranean formations;
- and
- a downhole tool positioned within the wellbore, the downhole tool including:
- an elongate mandrel;
- and
- a seal assembly encircling the elongate mandrel, the seal assembly configured to move between an unset state and a set state, the seal assembly including:
- a seal element encircling the elongate mandrel and configured to radially deform into contact with a wall of a wellbore when the seal assembly moves from the unset state to the set state;
- and
- a garter spring coupled with the seal element, the garter spring including:
- a coiled spring member having an inside diameter (ID1) and an outside diameter (OD1);
- a plurality of spaced balls located within the inside diameter (ID1) of the coiled spring member;
- and
- ones of spacer elements located in gaps between the plurality of spaced balls, wherein the ones of spacer elements are ones of springs having an inside diameter (ID2) and an outside diameter (OD2) located in the gaps between the plurality of space balls, and wherein the ones of springs are fixed coupled within the coiled spring member.
A garter spring, comprising:
- a coiled spring member having an inside diameter (ID1) and an outside diameter (OD1);
- a plurality of spaced balls located within the inside diameter (ID1) of the coiled spring member;
- and
- ones of spacer elements located in gaps between the plurality of spaced balls, wherein the plurality of spaced balls have openings extending entirely therethrough.
Dependencies are inferred from the claim text.