Methods and systems associated with improved estimated ultimate recovery (EUR) additive through proppant packs
AssigneeScidev Energy Services, Inc.
InventorsShawn Lu, Kevin Wilbur Smith
Life of this patent
Estimating the term…
Abstract
A chemical compositional to be pumped throughout the stimulation job, which includes while pumping proppant. The surfactant within the chemical composition causes the chemistry to adhere to the proppant, and the surfactant should be added into the stimulation job while the proppant is being pumped because the proppant is water-wet and free of any produced oil to decrease the amount of water flowing through the proppant while allowing vicious oil to flow through the proppant.
Claims7
A method associated with a chemical composition for fracturing fluids to increase estimated ultimate recovery of hydrocarbons from shale, the method comprising:
- pumping the chemical composition within a fracture, the chemical composition including an ammonium chloride corrosion inhibitor, a phosphonate scale inhibitor, and a surfactant, wherein the ammonium chloride corrosion inhibitor is alkyl pyridine quaternary ammonium chloride;
- pumping a proppant pack within the fracture, wherein the proppant pack is pumped downhole with the chemical composition, the proppant pack including an anionic charged proppant;
- forming a film on pyrite on the shale within the fracture and forming a film on the proppant pack, the film causing the proppant to be hydrophobic;
- changing a relative permeability of the proppant pack to reduce an amount of water flowing through the proppant pack while allowing viscous oil to flow through the proppant pack, wherein the surfactant lowers the relative permeability of the proppant pack;
- reducing a flow of water from a fracture towards a surface of a well via the proppant pack.
Dependencies are inferred from the claim text.