US 12,252,649 B2
Pillar fracturing
Ataur Malik, Abqaiq (SA); Mohammed A. Asiri, Udhailiyah (SA); Saad Al-Driweesh, Udhailiyah (SA); Rajesh Kumar Saini, Cypress, TX (US); Mohammad Hamidul Haque, Katy, TX (US); and Mohammed Sayed, Katy, TX (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Sep. 25, 2023, as Appl. No. 18/473,727.
Application 18/473,727 is a division of application No. 16/928,926, filed on Jul. 14, 2020, granted, now 11,795,382.
Prior Publication US 2024/0010909 A1, Jan. 11, 2024
Int. Cl. C09K 8/80 (2006.01); C09K 8/64 (2006.01); C09K 8/70 (2006.01); E21B 43/267 (2006.01)
CPC C09K 8/805 (2013.01) [C09K 8/64 (2013.01); C09K 8/703 (2013.01); E21B 43/267 (2013.01); C09K 2208/08 (2013.01); C09K 2208/10 (2013.01); C09K 2208/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for hydraulic fracturing, comprising:
a source of fracturing fluid;
a pump operationally coupled to the source to provide the fracturing fluid through a wellbore into a subterranean formation to hydraulically fracture the subterranean formation to generate fractures in the subterranean formation, wherein the fracturing fluid conveys proppant into the fractures, wherein the proppant comprises resin coating comprising unfunctionalized organic resin and functionalized nanoparticles that adhere to the unfunctionalized organic resin, wherein nanoparticles are reacted with at least one of an alkoxysilane solution or a halosilane solution to form the functionalized nanoparticles comprising at least one of a fluorosilane moiety, a perfluorosilane moiety, or an alkylsilane moiety for incorporation into the resin coating, and
wherein a surface modifier is applied to the resin coating prior to inclusion of the proppant in the fracturing fluid, and the surface modifier comprising at least one of an alkyl fluorosilane, a fluorinated surfactant, a fluorinated polymer, or a fluorinated polymeric surfactant; and
a control system to intermittently adjust a characteristic of the fracturing fluid conveying the proppant to form pillars of proppant in the fractures.