# US 10,479,922 B2 · Set on demand compositions

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- Number: US 10,479,922 B2
- Document ID: US10479922B2
- Status: Granted
- Kind: B2
- Application number: 15/323,301
- Filed: 2014-07-02
- Published: 2017-05-11
- Granted: 2019-11-19
- Earliest claimed: 2014-07-02
- Assignees: M-I Drilling Fluids UK Limited
- Applicants: M-I Drilling Fluids U.K. Limited
- Inventors: David Anthony Ballard
- Web page: https://patentgrep.com/patent/US10479922B2

## CPC

- C09K 8/467: containing additives for specific purposes
- C04B 14/04: Silica-rich materials; Silicates
- C04B 24/16: Sulfur-containing compounds
- C04B 24/2652: {Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles}
- C04B 28/02: containing hydraulic cements other than calcium sulfates
- C04B 28/30: containing magnesium cements {or similar cements}(magnesium oxide cements C04B28/10)
- C04B 28/32: Magnesium oxychloride cements, e.g. Sorel cement
- C09K 8/426: {for plugging}
- C09K 8/428: {for squeeze cementing, e.g. for repairing}
- E21B 33/14: for cementing casings into boreholes
- C04B 2103/40: Surface-active agents, dispersants
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The cement composition of claim 1, wherein the cement component comprises a magnesium-based cement.

### Claim 3 (depends on 1)

The cement composition of claim 1, wherein the one or more additives comprises the particulate and the particulate is a particulate silica.

### Claim 4 (depends on 1)

The cement composition of claim 1, wherein the surfactant is an anionic surfactant.

### Claim 5 (depends on 4)

The cement composition of claim 4, wherein the anionic surfactant is one or more selected from a group consisting of alpha olefin sulfonates, fatty acid derivatives, phosphate esters, acetylene diols, and lecithins.

### Claim 6 (depends on 1)

The cement composition of claim 1, wherein the one or more additives comprises the one or more ionic polymers.

### Claim 7 (depends on 6)

The cement composition of claim 6, wherein the one or more ionic polymers additive is a copolymer or terpolymer comprising at least one of acrylic acid, itaconic acid, maleic acid, acrylamido-2-methyl-propane sulfonic acid, styrene sulfonic acid, and vinyl phosphonic acid.

### Claim 8

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.

### Claim 9

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.