# US 10,246,624 B2 · Modified deformed reinforcement fibers, methods of making, and uses

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- Number: US 10,246,624 B2
- Document ID: US10246624B2
- Status: Granted
- Kind: B2
- Application number: 14/209,183
- Filed: 2014-03-13
- Published: 2014-09-18
- Granted: 2019-04-02
- Earliest claimed: 2013-03-15
- Assignees: Forta Corporation
- Applicants: Forta Corporation
- Inventors: Jeffrey B. Lovett; Christopher P. Lovett; Keith Davis; Daniel T. Biddle
- Web page: https://patentgrep.com/patent/US10246624B2

## CPC

- C09K 8/035: Organic additives
- C04B 16/0625: {Polyalkenes, e.g. polyethylene}
- C04B 16/0633: {Polypropylene}
- C04B 16/0691: {Polyamides; Polyaramides}
- C04B 20/0048: {Fibrous materials}
- C04B 26/26: Bituminous materials, e.g. tar, pitch {(C08L95/00 takes precedence)}
- C04B 28/04: Portland cements
- C09K 8/487: Fluid loss control additives; Additives for reducing or preventing circulation loss
- C09K 8/508: macromolecular compounds {(C09K8/512 takes precedence)}
- C09K 8/516: characterised by their form or by the form of their components, e.g. encapsulated material
- D02G 1/00: Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics (yarns per se D02G3/00; during formation of artificial filaments, threads, or the like D01D5/22; general aspects of chemical treatment D06M)
- C04B 2111/0075: {for road construction}
- C09K 2208/08: Fiber-containing well treatment fluids
- Y10T 428/2922: Nonlinear [e.g., crimped, coiled, etc.]
- 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
- D02G: CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention relates to modified reinforcement fibers for use in a variety of applications. The modification includes crimping linear or straight reinforcement fibers to create a deformed or different shaped reinforcement fiber. Examples of the shaped fibers resulting from crimping include w-shaped, s-shaped, z-shaped and wedge-shaped.

## Claims

### Claim 1

A modified reinforcement fiber-containing drilling liquid, comprising:
a drilling liquid; and
a reinforcement fiber component in a form selected from individual fibers, a clip of fibers and a bundle of fibers, at least a portion of the reinforcement fiber component comprises a plurality of modified reinforcement fibers each having a length from about 3 to 25 millimeters and a deformation formed in the length, wherein the deformation includes at least one crimp,
wherein, the reinforcement fiber component and the drilling liquid form a blend or mixture, and
wherein, the modified reinforcement fiber-containing drilling liquid is effective to increase suspension and debris removal from a wellbore as compared to a drilling liquid absent of the plurality of modified reinforcement fibers.

### Claim 2 (depends on 1)

The drilling liquid of claim 1, wherein the reinforcement fiber component is selected from the group consisting of polyolefin reinforcement fibers, aramid reinforcement fibers, nylon reinforcement fibers and blends thereof.

### Claim 3 (depends on 2)

The drilling liquid of claim 2, wherein the reinforcement fiber component is selected from the group consisting of polyethylene reinforcement fibers, polypropylene reinforcement fibers, aramid reinforcement fibers and blends thereof.

### Claim 4 (depends on 1)

The drilling liquid of claim 1, wherein the reinforcement fiber component comprises a blend of modified reinforcement fibers and non-modified reinforcement fibers.

### Claim 5 (depends on 1)

The drilling liquid of claim 1, wherein the plurality of modified reinforcement fibers has a denier of about 4.0.

### Claim 6 (depends on 1)

The drilling liquid of claim 1, wherein the plurality of modified reinforcement fibers each has a length between about 10 and 15 millimeters.