公开(公告)号：US11319476B2

公开(公告)日：2022-05-03

申请号：US16985490

申请日：2020-08-05

Applicant: Schlumberger Technology Corporation

Inventor： Andrey Yakovlev ,  Giselle Refunjol ,  Mei Ho ,  Bernhard Lungwitz

IPC: C09K8/10 ,  C09K8/473 ,  C04B18/24 ,  C04B20/00 ,  C04B28/02 ,  C09K8/467 ,  C09K8/70 ,  B82Y30/00 ,  C04B103/00 ,  E21B33/14 ,  B82Y40/00

Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.

公开(公告)号：US20200377778A1

公开(公告)日：2020-12-03

申请号：US16985490

申请日：2020-08-05

Applicant: Schlumberger Technology Corporation

Inventor： Andrey Yakovlev ,  Giselle Refunjol ,  Mei Ho ,  Bernhard Lungwitz

IPC: C09K8/10 ,  C09K8/467 ,  C09K8/70 ,  C04B28/02 ,  C04B20/00

Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.

公开(公告)号：US20190309211A1

公开(公告)日：2019-10-10

申请号：US15947169

申请日：2018-04-06

Applicant: Schlumberger Technology Corporation

Inventor： Andrey Yakovlev ,  Giselle Refunjol ,  Mei Ho ,  Bernhard Lungwitz

IPC: C09K8/473 ,  C04B18/24

Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.