US 11,898,085 B2
Downhole fluids and methods of use thereof
Vivek S. Goel, Humble, TX (US); Peter James Boul, Houston, TX (US); Xueyu Pang, Houston, TX (US); Lee J. Hall, The Woodlands, TX (US); Jay P. Deville, Spring, TX (US); Samuel J. Lewis, Duncan, OK (US); B. Raghava Reddy, Pearland, TX (US); Trissa Joseph, Kingwood, TX (US); and Xiangnan Ye, Cypress, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 5, 2021, as Appl. No. 17/494,030.
Application 17/494,030 is a division of application No. 16/562,587, filed on Sep. 6, 2019, granted, now 11,168,241.
Application 16/562,587 is a continuation of application No. 15/554,231, granted, now 10,428,259, issued on Oct. 1, 2019, previously published as PCT/US2015/025282, filed on Apr. 10, 2015.
Prior Publication US 2022/0081603 A1, Mar. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 8/20 (2006.01); C04B 28/02 (2006.01); C09K 8/467 (2006.01); C04B 22/00 (2006.01); C04B 22/10 (2006.01); C04B 24/38 (2006.01); C04B 28/04 (2006.01); C09K 8/14 (2006.01); C09K 8/16 (2006.01); C09K 8/40 (2006.01); C09K 8/487 (2006.01); C09K 8/493 (2006.01); C09K 8/54 (2006.01); C09K 8/80 (2006.01); C09K 8/504 (2006.01); C04B 103/46 (2006.01)
CPC C09K 8/206 (2013.01) [C04B 22/0093 (2013.01); C04B 22/10 (2013.01); C04B 24/383 (2013.01); C04B 28/02 (2013.01); C04B 28/04 (2013.01); C09K 8/145 (2013.01); C09K 8/16 (2013.01); C09K 8/40 (2013.01); C09K 8/467 (2013.01); C09K 8/487 (2013.01); C09K 8/493 (2013.01); C09K 8/54 (2013.01); C09K 8/80 (2013.01); C04B 2103/46 (2013.01); C09K 8/504 (2013.01); C09K 2208/10 (2013.01); C09K 2208/32 (2013.01); C09K 2208/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A spacer, comprising:
a clay comprising a smectite clay;
a hydroxylated polymer, wherein the a hydroxylated polymer comprises microfibrillated cellulose (MFC);
a cation;
the clay, the hydroxylated polymer, and the cation together in an amount sufficient to render the downhole fluid thermally stable at a temperature of 400° F.; and
at least one additional downhole fluid component.