IDEAS home Printed from https://ideas.repec.org/a/arp/srarsr/2016p109-116.html
   My bibliography  Save this article

Reservoir Characterization from Abnormal Pressure in Parts of Eleme, Southeastern Nigeria, Using Well Log Data

Author

Listed:
  • Igboekwe. M. U.

    (Department of Physics, Michael Okpara University of Agriculture, Umudike, Nigeria)

  • Udoinyang, I. E.

    (Department of Physics, Rhema University, Aba.Nigeria)

  • Ohaegbuchu, H. E.

    (Department of Physics, Michael Okpara University of Agriculture, Umudike, Nigeria)

Abstract

Pressure in Geophysics is mostly explained in terms of hydrostatics. It is a three dimensional stress state in which the magnitude of stress is the same in all directions. The pressure of a fluid is said to be “abnormal pressure†if it is greater or lower than normal. Normal pressure is regarded as the rate of increase of formation density where the pore pressure remains hydrostatic. The determination of zones of abnormal pressure was done using geophysical well log method in the Eleme area. Sonic log and density log formed the porosity log and consequently the porosity data. The logs were interpreted and plotted against depth. The trends were analysed for wells and abnormal pressure. Overpressure was determined in between particular depths. For the two wells used, it is found between 2185m and 2785m for well A and 1805m to 2525m for well B. Abnornally high pressure zones have density of formation greater than 1.07kg/cm3. They also have pressure gradients exceeding hydrostatic pressure gradients of 0.433psi/ft to 0.435psi/ft for fresh and brackish water with less than 20000ppm of salt and 0.465psi/ft for salt water with about 80000ppm salt content. The determined abnormal pressure can be taken as a guide in the Eleme area of Nigeria when oil wells are to be drilled.

Suggested Citation

  • Igboekwe. M. U. & Udoinyang, I. E. & Ohaegbuchu, H. E., 2016. "Reservoir Characterization from Abnormal Pressure in Parts of Eleme, Southeastern Nigeria, Using Well Log Data," Scientific Review, Academic Research Publishing Group, vol. 2(11), pages 109-116, 11-2016.
    • Handle: RePEc:arp:srarsr:2016:p:109-116
    DOI: arpgweb.com/?ic=journal&journal=10&info=aims
    as

    Download full text from publisher

    File URL: http://www.arpgweb.com/pdf-files/sr2(11)109-116.pdf
    Download Restriction: no
    File URL: http://www.arpgweb.com/?ic=journal&journal=10&month=11-2016&issue=11&volume=2
    Download Restriction: no
    File URL: https://libkey.io/arpgweb.com/?ic=journal&journal=10&info=aims?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. E. D Uko & I. Tamunobereton-ari & V. B Omubo-Pepple, 2012. "Comparison of Compressional-wave Velocity-depth Profiles from Surface and Downhole Detectors in the Near Surface in the Southeast Niger Delta, Nigeria," International Journal of Asian Social Science, Asian Economic and Social Society, vol. 2(6), pages 869-880.
    2. E. D. Uko & I.Tamunobereton-ari & V. B. Omubo-Pepple, 2012. "Comparison of Compressional-wave Velocity-depth Profiles from Surface and Downhole Detectors in the Near Surface in the Southeast Niger Delta, Nigeria," International Journal of Asian Social Science, Asian Economic and Social Society, vol. 2(6), pages 869-880, June.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:arp:srarsr:2016:p:109-116. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Managing Editor (email available below). General contact details of provider: http://arpgweb.com/index.php?ic=journal&journal=10&info=aims .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.