Annular region evaluation in sequestration wells
First Claim
1. A system for making measurements at multiple locations in an annular region of a cased sequestration well comprising:
- a first tool module positionable within the well and adapted to directly or indirectly measure changing pressure at a first location in the annular region of the well;
the annular region being defined by an outer surface of the well casing and one or more subterranean formations within which the well is positioned;
a pressure altering system arranged and positionable to induce a pressure change at the first location in the annular region; and
a second tool module positionable within the well and adapted to directly or indirectly measure changing pressure at a second location in the annular region, wherein the pressure changes at the second location are at least partly in response to the induced pressure change at the first location.
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Accused Products
Abstract
Methods and related systems are described for making measurements at multiple locations in an annular region of a cased sequestration well. A first tool module is positionable within the well and adapted to directly or indirectly measure changing pressure at a first location in the annular region of the well. A pressure change is induced at the first location in the annular region. A second tool module is positionable within the well and adapted to directly or indirectly measure changing pressure at a second location in the annular region. The measured pressure changes at the second location are in response to the induced pressure change at the first location.
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Citations
38 Claims
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1. A system for making measurements at multiple locations in an annular region of a cased sequestration well comprising:
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a first tool module positionable within the well and adapted to directly or indirectly measure changing pressure at a first location in the annular region of the well;
the annular region being defined by an outer surface of the well casing and one or more subterranean formations within which the well is positioned;a pressure altering system arranged and positionable to induce a pressure change at the first location in the annular region; and a second tool module positionable within the well and adapted to directly or indirectly measure changing pressure at a second location in the annular region, wherein the pressure changes at the second location are at least partly in response to the induced pressure change at the first location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for making measurements at multiple locations in an annular region of a cased sequestration well comprising:
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measuring directly or indirectly pressure at a first location within the annular region of the well, the annular region being defined by an outer surface of the well casing and one or more subterranean formations within which well is positioned; inducing a pressure change at the first location in the annular region; and measuring directly or indirectly pressure at a second location in the annular region;
wherein the pressure changes at the second location are at least partly in response to the induced pressure change at the first location. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification