Linking the Researchers, Developing the Innovations Manuscripts submittal opens till 30 Nov, 2019. Please submit your papers at editor@kwpublisher.com or editorkwpublisher@gmail.com

  • Volume 2018

    Geomechanical Principles of Hydraulic Fracturing Method in Unconventional Gas Reservoirs
    (International Journal of Engineering Works)

    Vol. 5, Issue 5, PP. 68-75, May 2018
    DOI
    Keywords: Perkins Kern-Nordgren PKN, Hydraulic fracturing, Niger Delta, Shale gas, Unconventional gas, geo-mechanical principles

    Download PDF

    Abstract

    Unconventional gas production from shale formation is not new to oil and gas experts worldwide. But our research work was built around hydraulic fracturing technique with focus on the Perkins Kern-Nordgren (PKN) 1972 hydraulic fracturing model(s). It is a very robust and flexible model that can be used on two major shale reservoirs (with the assumption of a fixed height and fracture fluid pressure). The essence was to compare detailed geo-mechanical parameters extracted from wire-line logs with Perkin-C model to select the right well as candidate for simulation. It aided in the prediction production of shale gas from tight shale formations. These also helped in reviewing safe and economical ways of obtaining clean energy sources. Based on similarities in well and formation properties our research team subjected IDJE-2 well (located in the Agbada shale Formation of Niger Delta, Nigeria) to various conditions, equations and assumptions proposed by the study model while also validating our results with the PENOBSCOT L-30 well, located in Canada (with existing profound results from stimulations). The PENOBSCOT L-30 well (Case 1) and IDJE-2 well (Case 2) were both subjected to same conditions, equations and assumptions as applicable to the study model to enable us compare and evaluate stimulation performances. But both cases tend to react differently. However the fluid behavior at constant injection time increases at about 99.64%. Whereas, the maximum width at wellbore shows that a constant increase of fracture width will yield an increase in propant permeability, tensile strength and Poisson’s ratio for Case 1 & 2. Our research results show how rock properties can affect fracture geometry and expected production rates from stimulated shale reservoir formations.

    Author

    1. Solomon Anwana Unwana: Petroleum Engineers/Lecturers, Department of Petroleum Engineering, Federal University of Technology, Owerri, Imo State, Nigeria, s.unwana@yahoo.com.
    2. Patrick Godwin Oyindobra Ossai: Petroleum Engineers/Lecturers, Department of Petroleum Engineering, Federal University of Technology, Owerri, Imo State, Nigeria, engrpatrickossai@yahoo.com.
    3. Ugochukwu Ilozurike Duru: Petroleum Engineers/Lecturers, Department of Petroleum Engineering, Federal University of Technology, Owerri, Imo State, Nigeria, ugooduru@yahoo.com.
    4. Princewill Nnaemeka Ohia: Petroleum Engineers/Lecturers, Department of Petroleum Engineering, Federal University of Technology, Owerri, Imo State, Nigeria, princepetra@yahoo.com.
    5. Abrakasa Selegha: Petroleum Engineer / Lecturer, Department of Geology, University of Port Harcourt, Port-Harcourt, Rivers State, Nigeria, sabrakasa@hotmail.com.
     

    Full Text

    Cite

    Solomon Anwana Unwana, Patrick Godwin Oyindobra Ossai, Ugochukwu Ilozurike Duru, Princewill Nnaemeka Ohia, Abrakasa Selegha, "Geomechanical Principles of Hydraulic Fracturing Method in Unconventional Gas Reservoirs" International Journal of Engineering Works, Vol. 5, Issue 5, PP. 68-75, May 2018.

    References

    1. [1]     Carl T. Montgomery and Michael B. Smith, NSI Technologies Editor’s (2006, December): Hydraulic fracturing; The Fuss, The Facts, The Future. Journal of petroleum technology (JPT) pdf file
    2. [2]     Carl T. Montgomery and Micheal B. Smith, NSI Technologies (2010), hydraulic fracturing: history of enduring technology Journal of petroleum technology (JPT)
    3. [3]     Cinco-Ley, et samaniego- V.F and A.N., D (1978).  Behavior for a well with infinite conductivity vertical fracture SPE J 18(4): 253-264.SPE 6014-PA
    4. [4]     Economides, M.J and Nolte G. Kenneth (2000): Reservoir simulation third edition, New York: John Wiley & Sons, ISBN10:047191926 / ISSBN 13:9780471491927
    5. [5]     Ekwueme BN, Nyon EE, Petters SW (1995), Geological guide book, South-eastern Calabar, Deeford publishing company, Calabar Nigeria
    6. [6]     Himanshu Yadav M.S.E (2011). Hydraulic fracturing in naturally fractured reservoir and       the impact of geo-mechanics on micro-seismicity, http://hdl.handle.net/2152/ETD-UT-2011-12-4889
    7. [7]     Massaras L. (2012), Oilpro question and Answer - Type of Fracking GRI, AST and Europe JRC
    8. [8]     Ehinola O.A, Sonibare O.O, Falode O.A and Awofala B.O (2008), Hydrocarbon Potential and Thermal Maturity of Nkporo Shale from Lower Benue Trough, Nigeria
    9. [9]     Oil producer Trade Section OPTS (2016), Nigeria in position to generate 40,000MW through gas reserves, ESI Africa’s Power Journal
    10. [10]  Peter P. Valko, Economides (2005), Hydraulic Fracturing short course,. Fracture design, Fracture Dimension, Fracturing Modeling. Texas A&M University College station, Texas
    11. [11]  Runar Nygaard (2010), Geo-mechanical Analysis Wabamun Area CO2 Sequestration Project (WASP), University of Calgary, Institute of Energy, environment and Economy (ISEEE), Canada. PDF