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US 10,851,613 B2Granted
Two-part restriction element for large-bore downhole isolation tool and method
AssigneeGeodynamics, Inc.
InventorsMichael Wroblicky, Kevin George, Dennis Roessler, John Hardesty
Life of this patent
Estimating the term…
Abstract
A downhole isolation system for sealing a well, the downhole isolation system including a setting tool having an internal chamber; a first restriction element placed within the internal chamber; and a second restriction element placed within the internal chamber, separate from the first restriction element.
Claims27
A downhole isolation system for sealing a well with a large-bore plug, the downhole isolation system comprising:
- a setting tool having an internal chamber defined by a reactionary sleeve and a mandrel of the setting tool;
- a first restriction element entirely placed within the internal chamber of the setting tool;
- and
- a second restriction element entirely placed within the internal chamber, separate from the first restriction element,
- wherein the first restriction element includes a passage that extends throughout the first restriction element, and
- wherein the second restriction element fits inside a first part of the passage.
3 more elements
A downhole isolation system for sealing a well, the downhole isolation system comprising:
- a large-bore plug having a seat at an upstream end, wherein the large-bore plug does not include a mandrel so that a diameter of an inner bore of the large-bore plug is not limited by the mandrel;
- a first restriction element configured to sit in the seat of the large-bore plug;
- and
- a second restriction element configured to fit inside the first restriction element,
- wherein the first restriction element includes a passage that extends throughout the first restriction element, and
- wherein the second restriction element fits inside a first part of the passage.
3 more elements
A method for plugging a well with a large-bore plug, the method comprising:
- releasing a first restriction element from within an internal chamber of a setting tool;
- releasing a second restriction element from within the internal chamber;
- seating the first restriction element in a corresponding seat of the large-bore plug,
- wherein the large-bore plug does not include a mandrel so that a diameter of an inner bore of the large-bore plug is not limited by the mandrel;
- and
- seating the second restriction element within the first restriction element,
- wherein the first restriction element includes a passage that extends throughout the first restriction element, and
- wherein the second restriction element fits inside a first part of the passage.
5 more elements
Dependencies are inferred from the claim text.