▎ 摘　　要

NOVELTY - Micro-nano heterogeneous phase modifier component separation and performance testing method, involves centrifuging portion of micro-nano heterogeneous displacement modifier solution, extracting low-density micro-nano heterogeneous phase displacement modifier solution in upper portion of test tube and high-density micro-nano heterogeneous phase displacement modifier solution in lower portion of test tube, testing interfacial tension between low-density micro-nano heterogeneous phase displacement modifier solution and high-density micro-nano heterogeneous phase displacement modifier solution and crude oil, and analyzing effect of micro-nano heterogeneous phase modifier, oil recovery effect and displacement oil recovery effect between low-density micro-nano heterogeneous phase-modifying agent solution and high-density micro-nano heterogeneous phase-modifying agent solution, according to differences in interfacial tension, contact angle, particle size and particle size distribution. USE - Micro-nano heterogeneous phase modifier component separation and performance testing method. DETAILED DESCRIPTION - Micro-nano heterogeneous phase modifier component separation and performance testing method, involves using oil field injection to prepare micro-nano heterogeneous phase displacement adjusting agent solution, placing portion of micro-nano heterogeneous displacement modifier solution in a centrifuge test tube, placing the test tube in high-speed centrifuge and operating for 3-5 hours, extracting low-density micro-nano heterogeneous phase displacement modifier solution in upper portion of the test tube and high-density micro-nano heterogeneous phase displacement modifier solution in lower portion of the test tube through a syringe, testing interfacial tension between the low-density micro-nano heterogeneous phase displacement modifier solution and the high-density micro-nano heterogeneous phase displacement modifier solution and crude oil, testing contact angle of core slices before and after soaking in two density solutions and testing particle size and particle size distribution of the dispersed phase in two density solutions, testing effect of imbibition and oil recovery of the low-density micro-nano heterogeneous phase-modifying agent solution and the high-density micro-nano heterogeneous phase-modifying agent solution, testing oil recovery effect of low-density micro-nano heterogeneous phase modifier solution and high-density micro-nano heterogeneous phase modifier solution, and analyzing effect of micro-nano heterogeneous phase modifier, imbibition oil recovery effect and displacement oil recovery effect between low-density micro-nano heterogeneous phase-modifying agent solution and high-density micro-nano heterogeneous phase-modifying agent solution, according to differences in interfacial tension, contact angle, particle size and particle size distribution.