公开(公告)号：US10214676B2

公开(公告)日：2019-02-26

申请号：US15551086

申请日：2016-02-24

Applicant: BASF SE

Inventor： Peter Leidinger ,  Radoslaw Kierat ,  Bernhard Feichtenschlager ,  Kristina Brandt

IPC: E21B33/13 ,  C09K8/467 ,  C04B28/02 ,  C04B20/10 ,  C09K8/03 ,  C04B16/06 ,  C04B22/00 ,  C04B28/04 ,  E21B33/14

Abstract: The present invention relates to the use of modified fibers in oilfield applications, particularly in borehole cementing. Said fibers have crystallization seeds attached to their surfaces thereby improving the mechanical strength and ductility of borehole cements.