	US 12,031,422 B2
	System and method for recycling miscible NGLs for oil recovery
Kevin D Hotton, Pagosa Springs, CO (US); Eyal Mordechai Aronoff, Newport Coast, CA (US); and Gevorg Noland Sargsyan, Lakewood, CO (US)
Filed by Pioneer Energy, Lakewood, CO (US)
Filed on Apr. 14, 2023, as Appl. No. 18/134,771.
Application 18/134,771 is a continuation of application No. 17/073,286, filed on Oct. 16, 2020, granted, now 11,655,700.
Claims priority of provisional application 62/916,971, filed on Oct. 18, 2019.
Prior Publication US 2023/0323764 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/40 (2006.01); B01D 3/14 (2006.01); B01D 3/42 (2006.01); C09K 8/592 (2006.01)

CPC E21B 43/40 (2013.01) [B01D 3/143 (2013.01); B01D 3/42 (2013.01); C09K 8/592 (2013.01)]

8 Claims

1. A system for natural gas liquid miscible enhanced oil recovery for efficient recovery and reinjection of natural gas liquid injectants comprising, a cooling system, a first separation system to separate three distinct streams: wastewater, liquid hydrocarbons and gaseous hydrocarbons, a second separation system whereby the liquid hydrocarbon stream is sent to a fractionation column to output a stabilized crude oil stream, an unfractionated Natural Gas Liquids (NGLs) mix with high concentration of methane and ethane in liquid phase as Enhanced Oil Recovery (EOR) fluid stream and an optional gaseous Enhanced Oil Recovery (EOR) stream, and, a well injection system for the EOR stream for enhanced oil recovery.