Petrophysical Modeling of Lower Zone of Ratawi Formation, using Neural Network Method in Assimilating Seismic and Geological Well Log Data
Subject Areas : Petroleum Reservoir GeologyJavid Hanachi 1 * , Alireza Bashari 2
1 - IOOC
2 - Iranian Society of Petroleum Geology
Keywords: Petrophysics, Seismic Data, Lower Ratawi Fm. Esfandiyar Field, Neural Network, Persian Gulf,
Abstract :
Esfandiar field is located at the northern part of the Persian . This field is a single large anticline with Lulu field of Saudi Arabia, with , 20 KM length and 7 KM width. The field was discovered in 1966 by drilling of well E1, on the northern culmination of the field. wells E3 and E2 were drilled at the top of structure in the southern part of the field. DSTs tests results of E1 proved that the top of Lower Ratawi formation contain 15 m oil column. E3 well test result regards as a dry hole DSTs test results of E2 were not conclusive due to inadequate testing plans . E4 Appraisal well contained, 14 m oil column at the Lower Ratawi. Log interpretations results indicated, E2 and E3 wells contains oil in Yamama formation in the southern part of the field which has not been tested properly. Lower Ratawi (Top oil-bearing zone ), Zone 'B' of Lower Ratawi (Oil bearing zone at bottom), Yamama were constructed based on the existing data. Petrophysical and geophysical data has been used for the Lower Ratawi reservoir, as a result the geological models (structural and porosity models), with applying, related software’s and neural network geophysical method are generated . At the conclusion, the recommended plan consists of horizontal drilling wells for oil production in Lower Ratawi in the north of the field has been proposed.
خیرالهی م ، جوزانی کهن گ، محبیان ر و مراد زاده ع، مدلسازی سه بعدی سنگی با استفاده از ادغام مغزه، نگار لرزه ای، مطالعه یکی از مخازن کربناته جنوب ایران. ، سال دوازدهم، شماره 21، پاییز و زمستان 1401 ص 1-15. نشریه علمی زمین شناسی نفت ایران.
بشری ع، تلفیق اطلاعات لرزه نگاری و پتروفیزیکی: تلاشی بر ساخت مدل زمین شناسی مخزن ایلام در یکی از میادین ناحیه سیری واقع در خلیج فارس ، سال دوازدهم، شماره 21، پاییز و زمستان 1401 ص 90-100. نشریه علمی زمین شناسی نفت ایران.
محبی پورا، سلیمانی ب، زحمت کش ا، ویسی ا, تخمین تراوایی با بکار گیری نگار های پترو فیزیکی و روش های هوش مصنوعی ، مطالعه مخزن اسماری یکی از میادین نفتی جنوبغربی ایران ، سال دهم ، شماره 20، پاییز و زمستان 1399 ص 1-16. نشریه علمی زمین شناسی نفت ایران
مستقل ب، بشري ع، احمد خاكزاد، كاربرد آناليز (مدل سازي) استوكاستيك ( ناقاطع) در خلال مطالعات جامع ويژگيهاي مخزن گازي گنبدي (مرز ايران و تركمنستان). شماره 57، پاییز 1384، مجله علمی پژوهشی علوم پایه، دانشگاه ازاد اسلامی.
بشری ع,علل پیدایش نفت سنگین در خلیج فارس ، سال هشتم، شماره 16، پاییز و زمستان 1398 ص 66-77. نشریه علمی زمین شناسی نفت ایران
بشري، ع. (2000)جزوه آموزشي: مقدمهاي بر اصول چاه پيمايي در تفسير حوضه هاي رسوبي ، انتشارات واحد آموزش و برنامه ريزي نيروي انساني، پزوهشگاه صنعت نفت ایران
رضايي، م-چهرازي، ع، (1385)، اصول برداشت و تفسير نگار هاي چاه پيمايي، انتشارات دانشگاه تهران.
گزارشات داخلی، زمين شناسي و حفاري چاههاي 1، 2، 3 و 4 ميدان نفتي اسفنديار، شرکت ملي نفت ايران، شرکت نفت فلات قاره
يميني، م، (1386)، کاربرد شبکه عصبي در برگردان داده هاي لرزه اي، رساله كارشناسي ارشد ژئوفيزيک، گرايش لرزه، دانشگاه آزاد واحد تهران شمال
Anwar Al-Helal, Yaqoub AlRefai, Abdullah AlKandari, & Mohammad Abdullah., 2023., Subsurface Stratigraphy of Kuwait .,
https://doi.org/10.1007/978-3-031-16727-0_2
Al Sharhan, 2002, A comparison of Khuff and Arab reservoir potential throughout the Middle East.
Angleri, G.P., 1983, A Statistical Approach to the Extraction of the Seismic Propagation Wavelet, Geophysical Prospecting, Vol. 31, P. 726-747
A. Bashar, Application of Wireline Log on Sedimentary Basin (Petrophysics), short course for Research Institute of Petroleum Industry, (RIPI) Tehran 2000.
Bashari, Alireza., 2000. Petrography and clay mineralogy of Volcanoclastic Sandstones in the Rewan Group, Southern, Bowen Basin, Australia, (Journal of Petroleum Geoscience, Vol.6, pp.151-163).
Bashari, Alireza.,1988. Occurrence of Heavy Crude Oil in the Persian Gulf, in R.F. Myer and E. J. Wiggins, (Eds.): Fourth International UNITAR/ UNDP Conference On Heavy crude and Tar Sands, V.2, Geology, Chemistry: International Conference on Heavy Crude and Tar Sands, , Edmonton, Alberta, Canada, 2, 204-214, August 1988.
A. Bashri. 2007 Integrated 3D Seismic and Seismic and Petrophysical data of the Sarvak Formation, Sirri District in the Persian Gulf (EAGE, First Break, Volume, 25 November 2007, Regional .
A. Bashari, 2008., Thermal History Reconstruction in the Soroosh and the Nowrooz Field, the Persian Gulf, Based on Apatite Fission Track Analysis and Vitrinite Reflection data , ( Journal of Petroleum Geology, V.31, no2 pp.153-165).
Debeye, H.W.G, and Schellinger, D, Constrained Spars Spike inversion, Jason Geoteam Technical papers, 2001.
EAGE, Geostatistics for seismic data integration in Earth model EAGE. Series No. 6
Dubrules. Oliver.2003
Foroozan and Esfandiar Fields Geological Report, IOOC, Internal Report, 2003.
Hampson, D., and Galbraith, M, 1981, Wavelet Extraction by sonic-log correlation, Journal of the CSEG, Vol. 17, P. 24-42.
Hampson-Russell software Manual, 2006, Hampson-Russell Services.
Omar Bashir. E., 2002., Lower Creataceaus Ratawi Formation Suidi Arabia, Depositional, Diagenesis and pet.
Oldenburg, D. W., levy, S. and Whittall, K. P., 1981, Wavelet estimation and deconvolution, Vol. 46, No. 11, P. 1518-1542.
Raiga Clemenceau, J., Martin, J. P. and Nicoleths, S., 1988, the concept of Acoustic formation factor for More Accurate porosity Determination from sonic Transit time data, the log analyst, January Febuary, pp. 54-59.
Stratigraphic Trap Potential in the Lower Cretaceous Ratawi Interval, Partitioned Zone PZ, Saudi Arabia and Kuwait Ibrahim Hakam; Niall Toomey; Sujoy Ghose; Joe Ponthier; Jeremy Zimmerman., 2021 SPE Middle East Oil & Gas Show November. https://doi.org/10.2118/204733-MS
Russell, B.H., 1988, Introduction to seismic inversion methods, course Notes series, Vol. 2, SEG.
Zangwill, G., 1982, Depth Matching: Acompaterized Approach, Trans
P.K. Nath1, J. Coronado2, S. Bhukta1, A. Najem2, S.K. Singh1, A. Al-Ajmai1, A. Ali Sajer1., Integrated Approach For Stratigraphic Characterization Of Lower Cretaceous Carbonate Reservoir In North Kuwait. European Association of Geoscientists & Engineers Conference Proceedings, EAGE Conference on Reservoir Geoscience, Dec 2018, Volume 2018, .1 - 5 https://doi.org/10.3997/2214-4609.201803288
Mohammad Naqi, Ohood Alsalem, Suad Qabazard, and Fowzia Abdullah., Petroleum Geology of Kuwait Open Access., First Online., November 2022.
https://doi.org/10.1007/978-3-031-16727-0_6