US 12,264,569 B2
Method and materials for manipulating hydraulic fracture geometry
Howard K. Schmidt, Hockley, TX (US); Scott Wright, Houston, TX (US); and Dmitry Kosynkin, Houston, TX (US)
Assigned to Quidnet Energy, Inc., Houston, TX (US)
Filed by Quidnet Energy Inc., Houston, TX (US)
Filed on Oct. 24, 2023, as Appl. No. 18/383,188.
Application 18/383,188 is a continuation of application No. 17/741,398, filed on May 10, 2022, granted, now 11,795,802.
Application 17/741,398 is a continuation of application No. 17/145,666, filed on Jan. 11, 2021, granted, now 11,326,435, issued on May 10, 2022.
Prior Publication US 2024/0068347 A1, Feb. 29, 2024
Int. Cl. C09K 8/80 (2006.01); C09K 8/68 (2006.01); E21B 43/27 (2006.01)
CPC E21B 43/27 (2020.05) [C09K 8/685 (2013.01); C09K 8/80 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tip screen-out mixture comprising:
water;
a hydrophilic polymer of anionic, polyacrylamide, wherein the hydrophilic polymer is hydrolized at least in part, and further wherein the hydrophilic polymer comprises a hydrophilic polymer concentration in the water; and
one or more crosslinking agents selected from a group of compounds consisting of polyvalent metal cations, wherein the one or more crosslinking agents comprises a crosslinking agent concentration in the water;
wherein the hydrophilic polymer concentration and the crosslinking agent concentration are each between 0.01 wt. % and 10 wt. % in the water, and further wherein the temperature of the hydrophilic polymer is selected to timely inhibit crosslinking of hydrogels until properly disposed in one or more hydraulic fractures.