# US 10,767,096 B2 · Date tree waste-based binary fibrous mix for moderate to severe loss control

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- Number: US 10,767,096 B2
- Document ID: US10767096B2
- Status: Granted
- Kind: B2
- Application number: 16/281,915
- Filed: 2019-02-21
- Published: 2019-06-20
- Granted: 2020-09-08
- Earliest claimed: 2016-12-19
- Assignees: Saudi Arabian Oil Company
- Applicants: Saudi Arabian Oil Company
- Inventors: Md Amanullah
- Web page: https://patentgrep.com/patent/US10767096B2

## CPC

- C09K 8/035: Organic additives
- C09K 8/506: containing organic compounds
- C09K 8/514: of natural origin, e.g. polysaccharides, cellulose (C09K8/512 takes precedence)
- C09K 8/516: characterised by their form or by the form of their components, e.g. encapsulated material
- E21B 21/003: {Means for stopping loss of drilling fluid (plastering the borehole wall E21B33/138)}
- E21B 33/138: Plastering the borehole wall; Injecting into the formation
- C09K 2208/04: Hulls, shells or bark containing well drilling or treatment fluids
- C09K 2208/08: Fiber-containing well treatment fluids
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A date tree fiber mix lost circulation material (LCM) is provided. The date tree fiber mix LCM may include includes date tree trunk fibers produced from date tree trunks and date tree leaf and leaf stem fibers produced from date tree leaves and leaf stems. The LCM include a mix of 30% by weight date tree trunk fibers and 70% date tree leaf and leaf stem fibers, 40% by weight date tree trunk fibers and 60% date tree leaf and leaf stem fibers, 50% by weight date tree trunk fibers and 50% date tree leaf and leaf stem fibers. Methods of lost circulation control using and manufacture of a date tree fiber mix LCM are also provided.

## Claims

### Claim 1

A lost circulation material (LCM) composition, the composition consisting of:
a first plurality of fibers produced from date tree trunks, wherein each of the first plurality of fibers produced from date tree trunks has a diameter in the range of 0.4 millimeters (mm) to about 0.8 mm; and
a second plurality of fibers produced from at least one of date tree leaves and date tree leaf stems, wherein each of the second plurality of fibers produced from at least one of date tree leaves and date tree leaf stems has a diameter in the range of 0.5 millimeters (mm) to about 1 mm.

### Claim 2 (depends on 1)

The LCM of claim 1, wherein the first plurality of fibers comprise 50% by weight of the LCM and the second plurality of fibers comprise 50% by weight of the LCM.

### Claim 3 (depends on 1)

The LCM of claim 1, wherein the first plurality of fibers comprise a first plurality of untreated fibers and the second plurality of fibers produced comprise a second plurality of untreated fibers.

### Claim 4 (depends on 1)

The LCM of claim 1, wherein the first plurality of fibers comprise 30% by weight of the LCM and the second plurality of fibers comprise 70% by weight of the LCM.