US 9,809,740 B2
Nanoparticle modified fluids and methods of manufacture thereof
Soma Chakraborty, Houston, TX (US); and Michael H. Johnson, Katy, TX (US)
Assigned to BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US)
Filed by Soma Chakraborty, Houston, TX (US); and Michael H. Johnson, Katy, TX (US)
Filed on Nov. 6, 2015, as Appl. No. 14/934,732.
Application 14/934,732 is a continuation in part of application No. 13/648,881, filed on Oct. 10, 2012, abandoned.
Prior Publication US 2016/0060503 A1, Mar. 3, 2016
Int. Cl. C09K 8/42 (2006.01); C09K 8/58 (2006.01); E21B 43/267 (2006.01); B82Y 30/00 (2011.01); C09K 8/03 (2006.01); C09K 8/66 (2006.01); C09K 8/70 (2006.01); C09K 8/84 (2006.01); C09K 8/92 (2006.01)
CPC C09K 8/58 (2013.01) [B82Y 30/00 (2013.01); C09K 8/032 (2013.01); E21B 43/267 (2013.01); C09K 8/665 (2013.01); C09K 8/70 (2013.01); C09K 8/845 (2013.01); C09K 8/92 (2013.01); C09K 2208/10 (2013.01)] 11 Claims
 
1. A method of using a nanoparticle modified fluid comprising:
injecting into a subterranean hydrocarbon formation the nanoparticle modified fluid
comprising first nanoparticles that are surface modified to increase a viscosity of the nanoparticle modified fluid and that have at least one dimension that is less than 100 nanometers and second nanoparticles that are surface modified to increase a viscosity of the nanoparticle modified fluid and that have at least one dimension that is less than 100 nanometers; the first nanoparticles being different from the second nanoparticles; the sum of the weight of the first and second nanoparticles being about 0.1 to about 2 wt. %, based on the total weight of the nanoparticle modified fluid, and the nanoparticle modified fluid displaying a viscosity increase of about 2 to about 6 orders of magnitude when the shear rate is decreased from 1,000 seconds−1 to 0.1 second−1;
contacting the subterranean hydrocarbon formation with the nanoparticle modified fluid;
plugging a first zone of the formation by reducing flow rate of the nanoparticle modified fluid and increasing the viscosity of the nanoparticle modified fluid to a point of gelation;
channeling the nanoparticle modified fluid into a second zone of the formation; the second zone of the formation having a lower permeability than the first zone of the formation; and
injecting additional nanoparticle modified fluid into channels formed in the gelled nanoparticle modified fluid in the subterranean hydrocarbon formation,
wherein the first nanoparticles comprise carbonaceous nanoparticles, and the second nanoparticles comprise metal oxide nanoparticles, metal nanoparticles, polyhedral oligomeric silsesquioxane nanoparticles, clay nanoparticles, silica nanoparticles, boron nitride nanoparticles, or a combination comprising at least one of the foregoing nanoparticles.