Estimation of shale volume from well logging data using Artificial Neural Network

  • Affiliations:

    Hanoi University of Mining and Geology, Hanoi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 11st-Jan-2021
  • Revised: 25th-Apr-2021
  • Accepted: 21st-May-2021
  • Online: 30th-June-2021
Pages: 46 - 52
Views: 2366
Downloads: 1218
Rating: 5.0, Total rating: 120
Yours rating

Abstract:

The existence of shale has a major effect on reservoir quality because it reduces the rock’s both the porosity and permeability. There are several types of shale, and they can be distributed in the sand in four different ways: laminated, structural, dispersed, or any combination of these. Each of them has various features and physical properties. Therefore, shale volume estimation is one of the most important and challengin tasks to be solved information evaluation. There are many equations proposed to calculate shale volume from Gamma - ray log; however, none of them could be considered the best method that can be applied to all case studies. This study aims to propose a new approach to estimate shale volume from well - logging data. Gamma - ray and other logs were used as input data for an artificial neural network (ANN) to predict the shale volume. We apply this technique to the 1143 data set of the ocean drilling program (ODP) in the East Sea. The authors compared the result to core data and recognized that utilization of several logs and ANN gives a better estimation than conventional methods (more accurate and can reflect the trend of actual shale volume).

How to Cite
Vu, D.Hong and Nguyen, H.Tien 2021. Estimation of shale volume from well logging data using Artificial Neural Network. Journal of Mining and Earth Sciences. 62, 3 (Jun, 2021), 46-52. DOI:https://doi.org/10.46326/JMES.2021.62(3).06.
References

Aarushi Gupta and Utkarsh Soumya, (2020). Well log interpretation using deep learning neural networks. International Petroleum Technology Conference, Dhahran, Kingdom of Saudi Arabia.

Bosch, D., Ledo, J., and Queralt, P., (2013). Fuzzy Logic Determination of Lithologies from Well Log Data: Application to the KTB Project Data set (Germany). Surveys in Geophysic 34(4), 413 - 439.

Braitenberg, C., Wienecke, S., and Wang, Y., (2006). Basement structures from satellite- derived gravity field: South China Sea ridge. Journal of Geophysical Research: Solid Earth B5 (111).

Clavier, C., Hoyle, W. R., Meunier, D., (1971). Quantitative interpretation of TDT logs: Parts I and II. J. Pet. Technol. 23, 743 - 763.

Dekkers, M. J., Heslop, D., Herrero - Bervera, E., Acton, G., and Krasa, D., (2014). Insights into magmatic processes and hydrothermal alteration of in situ superfast spreading ocean crust at ODP/IODP site 1256 from a cluster analysis of rock magnetic properties. Geochemistry, Geophysics, Geosystems 8(15), 3430 - 3447.

Ding, W., Franke, D., Li, J., and Steuer, S., (2013). Seismic stratigraphy and tectonic structure from a composite multi - channel seismic profile across the entire Dangerous Grounds, South China Sea. Tectonophysics 582, 162 - 176.

Ding, W., Li, J., and Clift, P. D., (2016). Spreading dynamics and sedimentary process of the Southwest Sub - basin, South China Sea: Constraints from multi - channel seismic data and IODP Expedition 349. Journal of Asian Earth Sciences 115, 97 - 113.

Gozzard, S., Kusznir, N., Franke, D., Cullen, A., Reemst, P., and Henstra, G., (2018). South China Sea crustal thickness and oceanic lithosphere distribution from satellite gravity inversion. Petroleum Geoscience 25, 112 - 128.

Huang, W., and Wang, P., (2006). Sediment mass and distribution in the South China Sea since the Oligocene. Science in China Series DEarth Sciences 11(49), 1147 - 1155. 

Karmakar, M., Maiti, S., Singh, A., Ojha, M., and Maity, B. S. J. M. G. R., (2018). Mapping of rock types using a joint approach by combining the multivariate statistics, self-organizing map and Bayesian neural networks: an example from IODP 323 site. Marine Geophysical Research 39, 407 - 419. 

Saumen Maiti., Ram Krishna Tiwari and Hans - Joachim K¨umpel., (2007). Neural network modelling and classification of lithofacies using well log data: a case study from KTB borehole site. Geophysical Journal International 169, 733 - 746.

Selesnick, I. W. and Burrus, C. S., (1998). Generalized digital Butterworth filter design. IEEE Transactions on Signal Processing, 46(6), 1688 - 1694.

Steiber, R. G., (1973). Optimization of shale volumes in open hole logs. J. Pet. Technol. 31, 147 - 162.

Tse, K. C., Chiu, H. - C., Tsang, M. - Y., Li, Y., and Lam, E. Y. J. F. o. E. S., (2019). Unsupervised learning on scientific ocean drilling datasets from the South China Sea. Frontiers of Earth Science 1(13), 180 - 190.

Tripathy, S. S., Saxena, R. K., and Gupta, P. K., (2013). Comparison of statistical methods for outlier detection in proficiency testing data on analysis of lead in aqueous solution. American Journal of Theoretical and Applied Statistics 2(6), 233 - 242.

Wu, H., Shi, M., Zhao, X., Huang, B., Zhang, S., Li, H., Yang, T., and Lin, C., (2017). Magnetostratigraphy of ODP Site 1143 in the South China Sea since the Early Pliocene. Marine Geology 394, 133 - 142.