US 11,834,942 B2
Simultaneous gas-solid chemical stimulation of hydraulically fractured oil wells and gas-condensate wells in shales
Iven Terez, Sugar Land, TX (US); and Kenneth Kibodeaux, Houston, TX (US)
Filed by Iven Terez, Sugar Land, TX (US); and Kenneth Kibodeaux, Houston, TX (US)
Filed on Apr. 13, 2022, as Appl. No. 17/719,532.
Claims priority of provisional application 63/175,108, filed on Apr. 15, 2021.
Prior Publication US 2022/0333474 A1, Oct. 20, 2022
Int. Cl. E21B 33/068 (2006.01); E21B 43/27 (2006.01); E21B 43/26 (2006.01)
CPC E21B 43/27 (2020.05) [E21B 33/068 (2013.01); E21B 43/2607 (2020.05)] 10 Claims
OG exemplary drawing
 
1. A method for providing simultaneous gas-solid mixture chemical well stimulation of hydraulically fractured oil and gas-condensate wells in shales, the method comprises:
setting-up a gas-solid mixing manifold at surface adjacent a wellhead of a horizontal well that penetrates an oil or gas-condensate shale reservoir, the shale reservoir comprising a plurality of networks, the plurality of networks comprising at least one of a plurality of hydraulic fractures or a plurality of natural fractures;
using a gas compressor to flow gas into the gas-solid mixing manifold to create a gas-solid mixture, the gas-solid mixture comprising of a gas and a plurality of solids, the plurality of solids comprising at least one of a plurality of nanoparticles or a plurality of surfactants, to inject through the wellhead and fill the well and the plurality of networks with the gas-solid mixture;
injecting the gas-solid mixture through the wellhead;
filling the well and the plurality of networks with the gas-solid mixture;
stopping the gas-solid mixture injection;
shutting in the well for a soak period of time in order to allow a plurality of chemicals of the gas-solid mixture to interact with existing in-situ water and shale to be treated by a chemical-water mixture formed from a combination of the existing in-situ water and the plurality of chemicals;
opening the well to adjust a pressure of fluid contained within the reservoir; and
flowing hydrocarbons from the reservoir into the well and to the surface.