Cement Compatible Water-Based Drilling Mud Compositions
First Claim
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1. A water-based drilling mud composition, comprising:
- water;
Lassenite;
a heavy-weight additive;
a viscosifier;
a dispersant; and
at least one of a set activator, a fluid loss control additive and a shale stabilizer.
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Abstract
A Lassenite-containing water-based drilling mud composition for use in cementing operations, and method of using same is provided. The composition includes water, Lassenite, a heavy-weight additive, a viscosifier, a dispersant and at least one of a set activator, a fluid loss control additive and a shale stabilizer.
11 Citations
43 Claims
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1. A water-based drilling mud composition, comprising:
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water; Lassenite; a heavy-weight additive; a viscosifier; a dispersant; and at least one of a set activator, a fluid loss control additive and a shale stabilizer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of cementing in a subterranean formation, comprising:
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introducing a cement composition into a subterranean formation wherein the subterranean formation comprises a water-based drilling mud; allowing the cement composition to mix with the water-based drilling mud, wherein the mixture of the cement composition and the water-based drilling mud comprises up to about 75 percent by volume of the water-based drilling mud; and allowing the mixture of the cement composition and the water-based drilling mud to set, wherein the set mixture of the cement composition and the water-based drilling mud develops a crush strength of at least 50 psi. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A cementitious composition, comprising:
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a water-based drilling mud composition and a cement composition, wherein the water-based drilling mud comprises; water; Lassenite; a heavy-weight additive; a viscosifier; a dispersant; and at least one of a set activator, a fluid loss control additive and a shale stabilizer; wherein the cement composition comprises; an aqueous fluid; and cement; wherein the cementitious composition comprises up to about 75% by volume of the water-based drilling mud composition; and wherein the cementitious composition develops a crush strength of at least about 50 psi at about 24 hours after curing at 120°
F. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A system for drilling a subterranean wellbore, comprising:
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a drill string including a drill bit; and a water-based drilling mud composition, wherein the drilling mud composition, comprises; water; Lassenite; a heavy-weight additive; a viscosifier; a dispersant; and at least one of a set activator, a fluid loss control additive and a shale stabilizer.
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Specification