Texas A&M University LibrariesTexas A&M University LibrariesTexas A&M University Libraries
    • Help
    • Login
    OAKTrust
    View Item 
    •   OAKTrust Home
    • Colleges and Schools
    • Graduate and Professional School
    • Electronic Theses, Dissertations, and Records of Study (2002– )
    • View Item
    •   OAKTrust Home
    • Colleges and Schools
    • Graduate and Professional School
    • Electronic Theses, Dissertations, and Records of Study (2002– )
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    CO2 EOR Simulation in Unconventional Liquid Reservoirs: An Eagle Ford Case Study

    Thumbnail
    View/ Open
    PHI-THESIS-2016.pdf (2.356Mb)
    Date
    2016-08-01
    Author
    Phi, Tuan Thanh
    Metadata
    Show full item record
    Abstract
    The purpose of this work is to perform an improved method to optimize different CO2 Enhanced Oil Recovery (EOR) processes in unconventional liquid reservoirs, particularly in the volatile oil region of the Eagle Ford shale. The dual-porosity, structured grid model in this research will be history matched with actual data collected from the field to ensure the results of CO2 EOR study to be meaningful. Previous simulation studies of CO2 EOR in the unconventional liquid reservoirs were not done in full field-scale and were not history matched before applying CO2 EOR to the model. Without history matching step, the simulation might generate misleading results in CO2 EOR studies. In addition, we are implementing the simulation in the dual-porosity mode to account for the presence of natural fractures which have been observed on Eagle Ford outcrop. This research provides comprehensive sensitivity analyses of important parameters in both matrix and natural fracture systems of the dual-porosity model. The history matched model suggests that matrix porosity in the volatile oil region of Eagle Ford shale might be overestimated in many previous investigations. Also, sensitivity analysis shows that the natural fracture permeability perpendicular to the direction of the horizontal well has a significant impact on oil rates in numerical simulation. Different injection schemes were considered as performed in CO2 EOR in conventional floods. WAG (water alternating gas) and continuous injection were both tested to provide the basic output performance in order to calibrate economic models. Among different CO2 EOR methods tested in this research, huff-n-puff yields the most promising outcome as compared to continuous injection in both oil production and economic performance in the volatile oil region of the Eagle Ford shale.
    URI
    https://hdl.handle.net/1969.1/158063
    Subject
    CO2 EOR
    Huff-n-Puff
    simulation
    dual-porosity
    history matching
    Eagle Ford
    unconventional liquid reservoirs
    Collections
    • Electronic Theses, Dissertations, and Records of Study (2002– )
    Citation
    Phi, Tuan Thanh (2016). CO2 EOR Simulation in Unconventional Liquid Reservoirs: An Eagle Ford Case Study. Master's thesis, Texas A & M University. Available electronically from https : / /hdl .handle .net /1969 .1 /158063.

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Advanced Search

    Browse

    All of OAKTrustCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDepartmentTypeThis CollectionBy Issue DateAuthorsTitlesSubjectsDepartmentType

    My Account

    LoginRegister

    Statistics

    View Usage Statistics
    Help and Documentation

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV