[CCoE Notice] MS Thesis Defense: Low Interfacial Tension Foam Miscible Ethane Oil Recovery in Low Permeability Harsh Environments

[Grayson, Audrey A]

MS Thesis Defense



Low Interfacial Tension Foam Miscible Ethane Oil Recovery in Low Permeability Harsh Environments



Mohamad Salman



Date: Thursday, November 15, 2018



Location: ConocoPhillips Petroleum Engineering Building (9) Rm 124

Energy Research Park



Time: 2:00 pm—4:00 pm



Committee Chair:

Dr. Konstantinos Kostarelos



Committee Members:

Dr. Birol Dindoruk

Dr. Sujeewa Palayangoda

Dr. Mohamed Soliman





This work presents a laboratory investigation of low interfacial tension miscible ethane foam enhanced oil recovery in low permeability, heterogeneous, harsh environments (<15md, 136,000ppm total dissolved solids with divalent ions, 74°C).  Minimum miscibility pressure displacement tests were performed for dead crude oil from the Wolfcamp Spraberry trend area using ethane and carbon dioxide, showing a lower MMP for ethane.  A surfactant formulation capable of persistent foams in the presence of oil and Type I microemulsion in reservoir brine was identified.  Subsequent foam quality and coreflood displacement tests were conducted to compare the recovery efficiencies of: a) miscible ethane foam process; b) to gravity stable, and; c) unstable miscible ethane processes.


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