Consolidating spacer fluids and methods of use
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus. The spacer fluid comprises a kiln dust and is provided to meet at least one property under predetermined...
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Main Authors | , , , , , , |
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Format | Patent |
Language | English |
Published |
25.01.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus. The spacer fluid comprises a kiln dust and is provided to meet at least one property under predetermined well bore conditions. The property is selected from the group consisting of: (i) a yield point of from about 25 Pascals to about 250 Pascals, (ii) a static gel strength of from about 70 lbf/100 ft2 (33.5 Pa) to about 500 lbf/100 ft2 (239.4 Pa), (iii) a yield limit in compression from about 1 psi (6.895 kPa) to about 2,000 psi (13,789.5 kPa), and (iv) an unconfined uniaxial compressive strength of from about 5 psi (34.47 kPa) to about 10,000 psi (68,947.57 kPa). At least a portion of the spacer fluid is allowed to consolidate in the well bore. The portion of the spacer fluid consolidates in the well bore to meet the property. |
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Bibliography: | Application Number: NZ20130707995 |