Permeable cement composition and method for preparing the same
First Claim
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1. A permeable cement composition having a permeability of about 1 darcy to about 50 darcies and a uniform compressive strength of about 345 KPa to about 13790 KPa.
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Abstract
The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution.
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Citations
18 Claims
- 1. A permeable cement composition having a permeability of about 1 darcy to about 50 darcies and a uniform compressive strength of about 345 KPa to about 13790 KPa.
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3. A permeable cement composition comprising:
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a hydraulic cement;
graded sand;
particulate matter selected from the group consisting of gilsonite, oil soluble particles and mixtures thereof; and
, wherein the cement composition has a permeability of about 1 darcy to about 50 darcies and a uniform compressive strength of about 345 KPa to about 13790 KPa. - View Dependent Claims (4, 5)
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6. A composition for forming a permeable cement sand screen in a downhole environment comprising:
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a hydraulic cement;
graded sand;
a diluent; and
,an effective amount of surfactant. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A composition for forming a downhole permeable cement sand screen comprising:
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diluent;
one to three parts by weight hydraulic cement per part diluent;
five to twelve parts by weight graded sand per part diluent; and
,an effective amount of a surfactant. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification