US 11,746,281 B2
Crosslinked proppant-gel matrix
Charles Zha, Stafford, TX (US); and Jan Beetge, Stafford, TX (US)
Assigned to HEXION INC., Columbus, OH (US)
Filed by Hexion Inc., Columbus, OH (US)
Filed on Jul. 13, 2022, as Appl. No. 17/864,076.
Application 17/864,076 is a division of application No. 17/118,834, filed on Dec. 11, 2020, granted, now 11,447,689.
Application 17/118,834 is a continuation of application No. 15/612,560, filed on Jun. 2, 2017, granted, now 10,883,041, issued on Jan. 5, 2021.
Prior Publication US 2022/0348820 A1, Nov. 3, 2022
Int. Cl. C09K 8/68 (2006.01); C09K 8/575 (2006.01); C09K 8/80 (2006.01); C09K 8/90 (2006.01); C08B 15/00 (2006.01); C08B 11/02 (2006.01); C08B 37/00 (2006.01); C08K 5/00 (2006.01); C01F 11/02 (2006.01); C08K 3/011 (2018.01); C01B 25/30 (2006.01); C01B 11/00 (2006.01)
CPC C09K 8/68 (2013.01) [C01F 11/02 (2013.01); C08B 11/02 (2013.01); C08B 15/005 (2013.01); C08B 37/00 (2013.01); C08B 37/0096 (2013.01); C08K 3/011 (2018.01); C08K 5/0025 (2013.01); C09K 8/5755 (2013.01); C09K 8/685 (2013.01); C09K 8/80 (2013.01); C09K 8/805 (2013.01); C09K 8/90 (2013.01); C01B 11/00 (2013.01); C01B 25/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A proppant-gel matrix composition comprising:
a hydrated gelling agent having a pH in the range of 12.0 to 14.0, the hydrated gelling agent comprising guar gum or a derivative thereof;
a proppant comprising sand; and
a borate crosslinking agent,
wherein the proppant is crosslinked with the hydrated gelling agent through the crosslinking agent, and wherein the proppant-gel matrix composition has a settling rate of less than 50% at 24 hours.