Characterization of the dynamic ift of surfactant-in-brine/n-heptane/shale systems; an enhanced oil recovery perspective

Mohammed A. Ayoub, Mysara Eissa Mohyeldinn, Nasreldin Abbas Babiker, And Berihun Mamo Negash

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The main goal of using surfactants as a fracture agent in tight shale gas reservoirs is to minimize the capillarity, interfacial tension, modify contact angle and reservoir wettability. Most of the recent studies conducted similar experiments at ambient conditions. However, one of the limitations of different previously laboratory studies is the lack of measurements with gas as they were done using air or crude oil. The major component in shale gas is methane plus some lighter hydrocarbon. In this chapter we will investigate the surfactant solution behavior with some light hydrocarbons such as n-Heptane to better mimic reservoir hydrocarbon behavior. All necessary laboratory experiments had been conducted plus phase behavior for the selected surfactants. Anionic surfactants gave excellent aqueous stability results however; the impact of the salinity was observed carefully. An optimized formulation was achieved that resulted in type III microemulsion.

Original languageEnglish
Title of host publicationUnconventional Methods for Geoscience, Shale Gas and Petroleum in the 21st Century
PublisherIOS Press
Pages282-296
Number of pages15
ISBN (Electronic)9781643684192
ISBN (Print)9781643684185
DOIs
Publication statusPublished - Sept 11 2023
Externally publishedYes

Keywords

  • Enhanced Oil recovery
  • Interfacial tension reduction
  • Phase behavior
  • Shale gas

ASJC Scopus subject areas

  • General Engineering

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