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US 10,479,922 B2Granted
Set on demand compositions
AssigneeM-I Drilling Fluids UK Limited
InventorDavid Anthony Ballard
Life of this patent
Estimating the term…
Abstract
Cement compositions may contain a cement component and an oil-immiscible solvent and used in a number of cementing applications. In another aspect, methods for sealing subterranean zones may include emplacing a cement composition into a wellbore containing a cement component and an oil-immiscible solvent, contacting the cement composition with a water source, and reacting the cement composition with the water source to form a hardened cement.
Claims9
A cement composition consisting essentially of:
- a cement component;
- an oil-immiscible solvent present in an amount ranging from 10 to 80 vol %, wherein the oil-immiscible solvent is one or more selected from a group consisting of ethylene glycol, propylene glycol, glycerol, diethylene glycol, triethylene glycol, 1,3-butanediol, and hexylene glycol;
- a surfactant;
- one or more hydration retarders selected from a group consisting of polycarboxylate polymers, polysuccinimide, polycarboxylic acids and polyaspartate;
- and
- one or more additives selected from the group consisting of a particulate, one or more ionic polymers, water, one or more non-ionic polymers, and a latent curing agent.
3 more elements
A cement composition consisting essentially of:
- a cement component;
- an oil-immiscible solvent present in an amount ranging from 10 to 80 vol %, wherein the oil-immiscible solvent is one or more selected from a group consisting of ethylene glycol, propylene glycol, glycerol, diethylene glycol, triethylene glycol, 1,3-butanediol, and hexylene glycol;
- a surfactant;
- one or more hydration retarders selected from a group consisting of polycarboxylate polymers, polysuccinimide, polycarboxylic acids and polyaspartate;
- one or more additives selected from the group consisting of a particulate, one or more ionic polymers, one or more non-ionic polymers and a latent curing agent;
- and
- less than 15% by volume of water.
4 more elements
A cement composition consisting essentially of:
- a cement component;
- an oil-immiscible solvent present in an amount ranging from 10 to 80 vol %, wherein the oil-immiscible solvent is one or more selected from a group consisting of ethylene glycol, propylene glycol, glycerol, diethylene glycol, triethylene glycol, 1,3-butanediol, and hexylene glycol;
- a surfactant;
- one or more hydration retarders selected from a group consisting of polycarboxylate polymers, polysuccinimide, polycarboxylic acids and polyaspartate;
- one or more additives selected from the group consisting of a particulate, one or more ionic polymers, water, and a latent curing agent;
- and
- one or more non-ionic polymers selected from polyvinylpyrrolidone, polyvinylpyrrolidone copolymers, polyacrylamide, polysuccinimide, polymaleic anhydride, and polymaleic anhydride copolymers.
4 more elements
Dependencies are inferred from the claim text.