公开(公告)号：US20230303906A1

公开(公告)日：2023-09-28

申请号：US17702002

申请日：2022-03-23

申请人： Halliburton Energy Services, Inc.

发明人： Sandip Prabhakar PATIL ,  Malharrao Hambirrao JADHAV ,  Ganesh Shriniwas PANGU

IPC分类号： C09K8/506 ,  C09K8/504 ,  C04B28/02 ,  C04B24/10 ,  C04B14/06 ,  C04B14/10 ,  E21B33/13 ,  E21B21/00 ,  E21B47/00

CPC分类号： C09K8/506 ,  C09K8/5045 ,  C04B28/02 ,  C04B24/10 ,  C04B14/06 ,  C04B14/10 ,  E21B33/13 ,  E21B21/003 ,  E21B47/00 ,  C04B2103/0079

摘要： Disclosed herein is a method of servicing a wellbore penetrating a subterranean formation with a thixotropic cement composition. The thixotropic cement composition comprises a cementitious material, maltodextrin, and an aqueous fluid, has a 10-minute gel strength of from about 30 lbf/100 ft2 to about 300 lbf/100 ft2, and can be used to reduce lost circulation in the wellbore. By incorporating maltodextrin into the thixotropic cement composition as disclosed herein, the thixotropic cement composition can have a similar 10-minute gel strength and an increased thickening time when compared to a reference composition.