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Year 2021, Volume: 8 Issue: 2, 161 - 169, 30.06.2021
https://doi.org/10.17350/HJSE19030000226

Abstract

References

  • 1. Ma YZ, Holditch SA. Unconventional Oil and Gas Resources Handbook: Evaluation and Development. Gulf Professional Publishing, USA, 2015.
  • 2. Tuft AL. Unconventional Oil and Shale Gas: Growth, Extraction, and Water Management Issues (Energy Science, Engineering and Technology). Nova Science Pub Inc, UK, 2015.
  • 3. Mahmood MF, Ahmad Z, Ehsan M. Total Organic Carbon Content and Total Porosity Estimation in Unconventional Resource Play Using Integrated Approach Through Seismic Inversion and Well Logs Analysis within the Talhar Shale, Pakistan. Journal of Natural Gas Science and Engineering 52 (2018) 13-24.
  • 4. Edward D, Holstein E. Petroleum Engineering Handbook - Volume V: Reservoir Engineering and Petrophysics. Society of Petroleum Engineers, Richardson, Texas, 2007.
  • 5. Zou C. Unconventional Petroleum Geology, second ed. Elsevier Inc, USA, 2017.
  • 6. Ahmed U, Meehan DN. Unconventional Oil and Gas Resources: Exploitation and Development Gulf Professional Publishing, USA, 2016.
  • 7. Steiner S, Ahsan SA, Raina I, Dasgupta S, Lis GP. Interpreting Total Organic Carbon TOC in Source Rock Oil Plays. Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, Abu Dhabi, UAE, 7-10 November, SPE, pp. 1-18, 2016.
  • 8. Thomas BM. Geochemical Analysis of Hydrocarbon Occurrences in Northern Perth Basin, Australia. American Association of Petroleum Geologists Bulletin 63 (1979) 1092-1107.
  • 9. Mahmoud A, Elkatatny S, Mahmoud M, Abouelresh M, Abdulraheem A, Ali A. Determination of the Total Organic Carbon (TOC) Based on Conventional Well Logs Using Artificial Neural Network. International Journal Coal Geology 179 (2017) 72-80.
  • 10. Huang R, Wang Y, Cheng S, Liu S, Cheng L. Selection of Logging-Based TOC Calculation Methods for Shale Reservoirs: A Case Study of the Jiaoshiba Shale Gas Field in the Sichuan Basin. Natural Gas Industry B 2 (2015) 155-161.
  • 11. Passey QR, Creaney S, Kulla JB, Moretti FJ, Stroud JD. A Practical Model for Organic Richness from Porosity and Resistivity Logs. American Association of Petroleum Geologists Bulletin 74 (1990) 1777-1794.
  • 12. Decker AD, Hill DG, Wicks DE. Log-based Gas Content and Resource Estimates for the Antrim Shale, Michigan Basin. Paper presented at the Low Permeability Reservoirs Symposium, Denver, Colorado, 26-28 April, SPE, pp. 659-669, 1993.
  • 13. Levenberg K. A Method for the Solution of Certain Problems in Least Squares. Quarterly of Applied Mathematics 2 (1944) 164-168.
  • 14. Marquardt D. An Algorithm for Least-Squares Estimation of Nonlinear Parameters. SIAM Journal on Applied Mathematics 11 (1963) 431-441.
  • 15. Archie GE. The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics. Transactions of the AIME, 146 (1942) 54-62.
  • 16. Wang P, Chen Z, Pang X, Hu K, Sun M, Chen X. Revised Models for Determining TOC in Shale Play: Example from Devonian Duvernay Shale, Western Canada Sedimentary Basin. Marine and Petroleum Geology 70 (2016) 304-319.
  • 17. Wikipedia contributors. Levenberg–Marquardt Algorithm. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org/wiki/Levenberg%E2%80%93Marquardt_algorithm. Accessed February 12, 2021.
  • 18. Fletcher R. A modified Marquardt Subroutine for Nonlinear Least Squares. Atomic Energy Research Establishment, Rpt. AERE-R 6799, Harwell, 1971.
  • 19. Magara K. Compaction and Fluid Migration: Practical Petroleum Geology Developments in Petroleum Science, Vol. 9, Elsevier Science&Technology, Amsterdam, 1978.

Modification of ΔlogR method and Nonlinear Regression Application for Total Organic Carbon Content Estimation from Well Logs

Year 2021, Volume: 8 Issue: 2, 161 - 169, 30.06.2021
https://doi.org/10.17350/HJSE19030000226

Abstract

ΔlogR method is one of the most widely utilized techniques for estimation of Total Organic Carbon (TOC) content form well logs. The traditional ΔlogR method reveals the assumption of linear relationship between logarithmic resistivity and porosity log. In this study, the method is modified by means of integral calculus to acquire the actual trend between logarithmic resistivity and porosity log. Furthermore, unlike to the traditional method, the maturity is additionally represented with logarithm of organic maturation temperature. Nonlinear regression is applied to optimize the unclear organized parameters required for computation of TOC content. The final forms of the equations are observed to be appropriate for the nonlinear regression application. The TOC estimations are observed to be improved with the modified versions in case traditional methods are unsatisfactory due to the related assumption expressed above. With the introduced methodology the TOC of unconventional reservoirs and source rocks can be more accurately calculated.

References

  • 1. Ma YZ, Holditch SA. Unconventional Oil and Gas Resources Handbook: Evaluation and Development. Gulf Professional Publishing, USA, 2015.
  • 2. Tuft AL. Unconventional Oil and Shale Gas: Growth, Extraction, and Water Management Issues (Energy Science, Engineering and Technology). Nova Science Pub Inc, UK, 2015.
  • 3. Mahmood MF, Ahmad Z, Ehsan M. Total Organic Carbon Content and Total Porosity Estimation in Unconventional Resource Play Using Integrated Approach Through Seismic Inversion and Well Logs Analysis within the Talhar Shale, Pakistan. Journal of Natural Gas Science and Engineering 52 (2018) 13-24.
  • 4. Edward D, Holstein E. Petroleum Engineering Handbook - Volume V: Reservoir Engineering and Petrophysics. Society of Petroleum Engineers, Richardson, Texas, 2007.
  • 5. Zou C. Unconventional Petroleum Geology, second ed. Elsevier Inc, USA, 2017.
  • 6. Ahmed U, Meehan DN. Unconventional Oil and Gas Resources: Exploitation and Development Gulf Professional Publishing, USA, 2016.
  • 7. Steiner S, Ahsan SA, Raina I, Dasgupta S, Lis GP. Interpreting Total Organic Carbon TOC in Source Rock Oil Plays. Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, Abu Dhabi, UAE, 7-10 November, SPE, pp. 1-18, 2016.
  • 8. Thomas BM. Geochemical Analysis of Hydrocarbon Occurrences in Northern Perth Basin, Australia. American Association of Petroleum Geologists Bulletin 63 (1979) 1092-1107.
  • 9. Mahmoud A, Elkatatny S, Mahmoud M, Abouelresh M, Abdulraheem A, Ali A. Determination of the Total Organic Carbon (TOC) Based on Conventional Well Logs Using Artificial Neural Network. International Journal Coal Geology 179 (2017) 72-80.
  • 10. Huang R, Wang Y, Cheng S, Liu S, Cheng L. Selection of Logging-Based TOC Calculation Methods for Shale Reservoirs: A Case Study of the Jiaoshiba Shale Gas Field in the Sichuan Basin. Natural Gas Industry B 2 (2015) 155-161.
  • 11. Passey QR, Creaney S, Kulla JB, Moretti FJ, Stroud JD. A Practical Model for Organic Richness from Porosity and Resistivity Logs. American Association of Petroleum Geologists Bulletin 74 (1990) 1777-1794.
  • 12. Decker AD, Hill DG, Wicks DE. Log-based Gas Content and Resource Estimates for the Antrim Shale, Michigan Basin. Paper presented at the Low Permeability Reservoirs Symposium, Denver, Colorado, 26-28 April, SPE, pp. 659-669, 1993.
  • 13. Levenberg K. A Method for the Solution of Certain Problems in Least Squares. Quarterly of Applied Mathematics 2 (1944) 164-168.
  • 14. Marquardt D. An Algorithm for Least-Squares Estimation of Nonlinear Parameters. SIAM Journal on Applied Mathematics 11 (1963) 431-441.
  • 15. Archie GE. The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics. Transactions of the AIME, 146 (1942) 54-62.
  • 16. Wang P, Chen Z, Pang X, Hu K, Sun M, Chen X. Revised Models for Determining TOC in Shale Play: Example from Devonian Duvernay Shale, Western Canada Sedimentary Basin. Marine and Petroleum Geology 70 (2016) 304-319.
  • 17. Wikipedia contributors. Levenberg–Marquardt Algorithm. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org/wiki/Levenberg%E2%80%93Marquardt_algorithm. Accessed February 12, 2021.
  • 18. Fletcher R. A modified Marquardt Subroutine for Nonlinear Least Squares. Atomic Energy Research Establishment, Rpt. AERE-R 6799, Harwell, 1971.
  • 19. Magara K. Compaction and Fluid Migration: Practical Petroleum Geology Developments in Petroleum Science, Vol. 9, Elsevier Science&Technology, Amsterdam, 1978.
There are 19 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Research Article
Authors

Can Polat 0000-0002-9494-8761

Tuna Eren 0000-0003-1258-9230

Publication Date June 30, 2021
Submission Date March 8, 2021
Published in Issue Year 2021 Volume: 8 Issue: 2

Cite

Vancouver Polat C, Eren T. Modification of ΔlogR method and Nonlinear Regression Application for Total Organic Carbon Content Estimation from Well Logs. Hittite J Sci Eng. 2021;8(2):161-9.

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