# US 2020/0392425 A1 · Drag reducing agents

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2020/0392425 A1
- Document ID: US20200392425A1
- Status: Published application
- Kind: A1
- Application number: 16/892,834
- Filed: 2020-06-04
- Published: 2020-12-17
- Earliest claimed: 2019-06-14
- Assignees: Baker Hughes Oilfield Operations LLC
- Inventors: Brandon M. Vittur; Jian Zou
- Web page: https://patentgrep.com/patent/US20200392425A1

## CPC

- F17D 1/17: by mixing with another liquid {, i.e. diluting}
- C08L 25/06: Polystyrene
- C08L 33/08: Homopolymers or copolymers of acrylic acid esters
- C09K 8/035: Organic additives
- C10G 71/00: Treatment by methods not otherwise provided for of hydrocarbon oils or fatty oils for lubricating purposes
- C10L 1/1641: {from compounds containing aliphatic monomers}
- C10L 1/165: {from compounds containing aromatic monomers}
- C10L 1/1963: {mono-carboxylic}
- C10L 1/1973: {mono-carboxylic}
- C10M 101/025: {waxes}
- C10M 143/00: Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M 169/02: Mixtures of base-materials and thickeners
- C10M 177/00: Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
- C08L 2207/53: Core-shell polymer
- C09K 2208/28: Friction or drag reducing additives
- C10G 2400/10: Lubricating oil
- C10L 2250/04: Additive or component is a polymer
- C10M 2201/02: Water
- C10M 2203/003: used as base material
- C10M 2205/02: containing acyclic monomers
- C10M 2205/022: Ethene
- C10M 2205/183: used as base material
- C10M 2207/0215: used as base material
- C10N 2010/06: Groups 3 or 13
- C10N 2020/04: Molecular weight; Molecular weight distribution
- C10N 2030/06: Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
- C10N 2050/12: {Micro capsules}
- C10N 2070/00: Specific manufacturing methods for lubricant compositions
- F17D: PIPE-LINE SYSTEMS; PIPE-LINES (pumps or compressors F04; fluid dynamics F15D; valves or the like F16K; pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories F16L; steam traps or the like F16T; fluid-pressure electric cables H01B9/06)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10L: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10M: LUBRICATING COMPOSITIONS (well drilling compositions C09K8/02); USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION (mould release, i.e. separating, agents for metals B22C3/00, for plastics or substances in a plastic state, in general B29C33/56, for glass C03B40/02; textile lubricating compositions D06M11/00, D06M13/00, D06M15/00; immersion oils for microscopy G02B21/33)
- C10N: INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS

## Abstract

A drag reducing composition comprises a sealed temporary container; and a drag reducing agent and up to 20 weight percent of a dispersing fluid disposed in the sealed temporary container. The drag reducing agent comprises polyolefin particles having a particle size of about 10 to about 2,000 microns; and the dispersing fluid comprising water, an alcohol, a hydrocarbon, or a combination comprising at least one of the foregoing.

## Claims

### Claim 1

A drag reducing composition comprising:
a sealed temporary container; and
a drag reducing agent and up to 20 weight percent of a dispersing fluid disposed in the sealed temporary container;
wherein the drag reducing agent comprises polyolefin particles having a particle size of about 10 to about 2,000 microns;
the dispersing fluid comprising water, an alcohol, a hydrocarbon, or a combination comprising at least one of the foregoing;
the temporary container comprises a container material, which includes a polyethylene, a polypropylene, an ethylene propylene copolymer, a polystyrene, a polylactic acid, a polyamide, a polyester, a polystyrene, an ethylene vinyl acetate copolymer, an ethylene vinyl alcohol copolymer, a polyvinylpyrrolidone, an ethylene vinylpyrrolidone copolymer, a vinylpyrrolidone vinyl acetate copolymer, a polyvinyl acetate, a polyvinyl alcohol, a polyethylene oxide, a polyethylene glycol, polyvinylidene chloride, a polysaccharide or its derivative, or a combination comprising at least one of the foregoing; and
the weight percent is based on the total weight of the drag reducing composition.

### Claim 2 (depends on 1)

The drag reducing composition of claim 1, wherein the drag reducing agent comprises a plurality of first polyolefin particles; and a plurality of second polyolefin particles different from the first polyolefin particles.

### Claim 3 (depends on 2)

The drag reducing composition of claim 2, wherein the first polyolefin particles have a particle size of about 10 to about 200 microns and the second polyolefin particles have a particle size of about 200 to about 2,000 microns.

### Claim 4 (depends on 2)

The drag reducing composition of claim 2, wherein the first polyolefin particles have a weight average molecular weight of about 50,000 to about 20,000,000 and the second polyolefin particles have a weight average molecular weight of about 1,000,000 to more than 30,000,000.

### Claim 5 (depends on 1)

The drag reducing composition of claim 1, further comprising an anti-agglomeration agent disposed in the sealed temporary container, wherein the anti-agglomeration agent comprises a salt of fatty acids having 12-20 carbon atoms, a polyethylene glycol or a polyethylene oxide with molecular weight 400 to 20,000,000 Daltons, a methoxylated polyethylene glycol, a polyacrylamide or a chemically modified polyacrylamide with molecular weight 400 to 30,000,000 Daltons, a linear primary alcohol having 12 to 60 carbon atoms, a polyethylene wax with molecular weight 400 to 3000 Daltons, a linear primary alcohol ethoxylate with molecular weight 500 to 5000 Daltons, ethylene-bis-stearamide, an inorganic clay, a silicone, or a combination comprising at least one of the foregoing.

### Claim 6 (depends on 1)

The drag reducing composition of claim 1, wherein the temporary container has two or more layers, and at least one layer comprises the container material.

### Claim 7 (depends on 6)

The drag reducing composition of claim 6, wherein each of the two or more layers independently comprises the container material.

### Claim 8 (depends on 1)

The drag reducing composition of claim 1, wherein the temporary container has an inner surface and an opposing outer surface, and a coating is disposed on at least one of the inner and outer surfaces of the temporary container, the coating comprising a wax, a silicone, or a combination comprising at least one of the foregoing.

### Claim 9 (depends on 1)

The drag reducing composition of claim 1, wherein the temporary container has a thickness of about 1 to about 1,000 microns.

### Claim 10 (depends on 1)

The drag reducing composition of claim 1, further comprising a sealed pouch disposed inside the sealed temporary container.

### Claim 11 (depends on 1)

The drag reducing composition of claim 1, comprising a plurality of the sealed temporary container, wherein adjacent sealed temporary containers are connected, and the drag reducing agent is disposed in at least one of the plurality of the sealed temporary containers.

### Claim 12 (depends on 11)

The drag reducing composition of claim 11, wherein the plurality of the temporary containers form a chain having a length of greater than about 1 meter.

### Claim 13 (depends on 1)

The drag reducing composition of claim 1, wherein the polyolefin particles comprise a polyolefin homopolymer, a copolyolefin, a polyolefin copolymer, or a combination comprising at least one of the foregoing, and the polyolefin copolymer comprises first units derived from an olefin component and second units derived from styrene, a vinyl acetate, a vinylalkylene carboxylic ester, or a combination comprising at least one of the foregoing.

### Claim 14 (depends on 1)

The drag reducing composition of claim 1, wherein the drag reducing agent is present in an amount of about 80 wt % to about 99.99 wt %, based on the total weight of the drag reducing composition.

### Claim 15 (depends on 1)

A fluid comprising the drag reducing composition of claim 1.

### Claim 16 (depends on 15)

The fluid of claim 15, wherein the fluid further comprises water, a hydrocarbon, or a combination comprising at least one of the foregoing.

### Claim 17 (depends on 1)

A process of manufacturing the drag reducing composition of claim 1, the process comprising:
disposing the drag reducing agent and up to 20 weight percent of the dispersing fluid in the temporary container; and
sealing the temporary container.

### Claim 18 (depends on 1)

A method of reducing the flow resistance of a fluid, the method comprising:
disposing the drag reducing composition of claim 1 in the fluid; and
removing the temporary container.

### Claim 19 (depends on 18)

The method of claim 18, wherein removing the temporary container comprises dissolving the container material with a polar solvent, a hydrocarbon, or a combination comprising at least one of the foregoing.

### Claim 20 (depends on 19)

The method of claim 19, wherein the temporary container is removed in the presence of an acid or base catalyst.
