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A mechanical earth model with velocity matching algorithm for predicting shear wave velocity using offset well data from an Iranian oilfield | ||
| International Journal of Mining and Geo-Engineering | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 13 اردیبهشت 1405 | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2026.387231.595213 | ||
| نویسنده | ||
| Abolfazl Abdollahipour* | ||
| School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| A Mechanical Earth Model (MEM) provides the geomechanical properties required for wellbore stability, well completion, hydraulic fracturing, and mud weight design. This study presents a one-dimensional MEM for a vertical well in a Berriasian–Santonian oilfield in southwest Iran. Shear wave velocity was not measured in the target well and was instead predicted from an adjacent offset well using a velocity matching algorithm that aligns compressional delay times. The novelty of this approach lies in systematically reconstructing missing shear data to enable MEM construction under data-limited conditions. The MEM includes pore pressure, in situ stress fields, and rock mechanical properties along the well path. Static laboratory tests were correlated with dynamic log data to generate continuous rock strength profiles. Using these inputs, a mud weight window was computed and compared with drilling operations. The predicted window showed good agreement with observed breakouts in FMI logs and daily drilling reports. Stability analysis across several intervals indicated that the most stable wellbore trajectory varies with depth due to changes in stress regime and mechanical properties. The method assumes sonic similarity between adjacent wells and is limited by the small number of core samples and incomplete log coverage. Nevertheless, the study demonstrates that velocity matching from an offset well is a practical tool for MEM development, improving wellbore stability prediction and trajectory optimization. | ||
| کلیدواژهها | ||
| Mechanical Earth Model؛ Elastic Properties؛ In-situ stress؛ Wellbore Stability؛ Mud weight window | ||
| مراجع | ||
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[1]. Noohnejad A, Ahangari K, Goshtasbi K. Comprehensive mechanical earth modeling using well data. Innovative Infrastructure Solutions 2021;6:1–13.
[2]. Yousefian H, Fatehi-Marji M, Soltanian H, Abdollahipour A, Pourmazaheri Y. Wellbore trajectory optimization of an Iranian oilfield based on mud pressure and failure zone. Journal of Mining and Environment 2020;11:193–220.
[3]. Abdollahipour A. Crack propagation mechanism in hydraulic fracturing procedure in oil reservoirs. University of Yazd, 2015.
[4]. Abdollahipour A, Fatehi-Marji M, Soltanian H, Kazemzadeh EA, Marji MF, Soltanian H, et al. Behavior of a hydraulic fracture in permeable formations. Journal of Mining and Environment\ 2018;9. https://doi.org/10.22044/jme.2018.6129.1428.
[5]. Yue Y, Chen S, Wang Z, Yang X, Peng Y, Cai J, et al. Improving wellbore stability of shale by adjusting its wettability. J Pet Sci Eng 2017. https://doi.org/10.1016/j.petrol.2017.12.023.
[6]. Das B, Chatterjee R. Wellbore stability analysis and prediction of minimum mud weight for few wells in Krishna-Godavari Basin, India. International Journal of Rock Mechanics and Mining Sciences 2017;93:30–7. https://doi.org/10.1016/j.ijrmms.2016.12.018.
[7]. Mansourizadeh M, Jamshidian M, Bazargan P, Mohammadzadeh O. Wellbore stability analysis and breakout pressure prediction in vertical and deviated boreholes using failure criteria – A case study. J Pet Sci Eng 2016;145:482–92. https://doi.org/10.1016/j.petrol.2016.06.024.
[8]. De S, Varma AK, Sengupta D. Recent Advances in Well Logging Techniques for Exploration of Shale Reservoirs. Unconventional Shale Gas Exploration and Exploitation: Current Trends in Shale Gas Exploitation 2024:49–67.
[9]. Ganguli SS, Dimri VP. Reservoir characterization: State-of-the-art, key challenges and ways forward. Developments in Structural Geology and Tectonics, vol. 6, Elsevier; 2024, p. 1–35.
[10]. Li Y, Villa V, Clayton RW, Persaud P. Shear Wave Velocities in the San Gabriel and San Bernardino Basins, California. J Geophys Res Solid Earth 2023;128:e2023JB026488.
[11]. Gholami R, Moradzadeh A, Rasouli V, Hanachi J. Shear wave velocity prediction using seismic attributes and well log data. Acta Geophysica 2014;62:818–48.
[12]. Passeri F, Foti S, Rodriguez-Marek A, others. A new geostatistical model for shear wave velocity profiles. Soil Dynamics and Earthquake Engineering 2020;136:106247.
[13]. Aghakhani Emamqeysi MR, Fatehi-Marji M, Hashemizadeh A, Abolfazl Abdollahipour, Sanei M. Prediction of elastic parameters in gas reservoirs using ensemble approach. Environ Earth Sci 2023;82.
[14]. Finch WC. Abnormal pressure in antelope field North Dakota. J Petrol Technol 1969;246:821–6.
[15]. Stuart CA. Geopressures. proceedings of the 2nd symp. abnormal subsurface pressure, Baton Rouge, LA: Louisiana State Univ.; 1970.
[16]. Eaton BA. The Equation for Geopressure Prediction from Well Logs. Society of Petroleum Engineers of AIME, 1975.
[17]. Lang J, Li S, Zhang J. Wellbore stability modeling and real-time surveillance for deepwater drilling to weak bedding planes and depleted reservoirs. SPE/IADC Drilling Conference and Exhibition, Amsterdam, The Netherlands: 2011.
[18]. Bowers GL. Pore pressure estimation from velocity data; accounting for overpressure mechanisms besides undercompaction. SPE Drilling and Completions 1995:89–95.
[19]. Zhang J, Roegiers J-C. Double porosity finite element method for borehole modeling. Rock Mech Rock Eng 2005;38:217–242.
[20]. Gutierrez MA, Braunsdore NR, Couzens BA. Calibration and ranking of porepressure prediction models. The Leading Edge 2006:1516–1523.
[21]. Lopez JL, Rappold PM, Ugueto GA, Wieseneck JB, Vu K. Integrated shared earth model: 3D pore-pressure prediction and uncertainty analysis. The Leading Edge 2004:52–59.
[22]. Slotnick MM. On seismic computation with applications. Geophysics 1936;1:9–22.
[23]. Ameen MS, Smart BGD, Somerville JMC, Hammilton S, Naji NA. Predicting rock mechanical properties of carbonates from wireline logs (a case study: Arab-D reservoir, Ghawar field, Saudi Arabia). Mar Pet Geol 2009;26:430–44.
[24]. Eissa EA, Kazi A. Relation between Static and Dynamic Young’s Moduli of Rocks. Rock Mechanics 1988;25:479–82.
[25]. Marcinew M&. Fracturing of High Permeability Formations: Mechanical Properties Correlations. SPE Annual Technical Conference and Exhibition, 1993.
[26]. King MS. Static and dynamic elastic properties of rock from the Canadian Shield. Int J Rock Mech Min Sci Geomech Abstr 1983;20:237–41.
[27]. Lacy LL. Dynamic rock mechanics testing for optimized fracture designs. SPE Annual Technical Conference and Exhibition, San Antonio, TX: Society of Petroleum Engineers.; 1997.
[28]. Wang Z. Dynamic vs. Static Elastic Properties of Reservoir Rocks, in Seismic and acoustic velocities. reservoir rocks, Society of Exploration Geophysicists; 2000.
[29]. Bradford IDR, Fuller J, Thompson PJ, Walsgrove TR. Benefits of Assessing the Solids Production Risk in a North Sea Reservoir Using Elastoplastic Modelling. SPE/ISRM Rock Mechanics in Petroleum Engineering, Trondheim, Norway: 1998.
[30]. McNally GH. The prediction of geotechnical rock properties from sonic and neutron logs. Geophys Explor 1990;21:65–71.
[31]. Moos D, Zoback MD, Bailey L. Feasibility study of the stability of openhole multilaterals. SPE Mid- Continent Operations Symposium, Oklahoma City, Oklahoma: 1999.
[32]. Kazi A, Zekai S, Bahsa-Eldin H. Relationship Between Sonic Pulse Velocity and Uniaxial Compressive Strengths of Rocks. Proc. of the 24th U.S. Symp. on Rock Mech., Texas A&M University; 1983.
[33]. Nygaard R, Hareland G. Application of rock strength in drilling evaluation. SPE Annual Technical, 2007.
[34]. Asef MR, Farrokhrouz M. Governing Parameters for Approximation of Carbonates UCS. EJGE 2010;15.
[35]. Jaeger JC, Cook NGW. Fundamentals of Rock Mechanics. New York: Chapman and Hall; 1979.
[36]. Zoback M, Mooss D, Mastin L, Anderson R. Wellbore breakout and in situ stress. J Geophys Res 1985;90:5523–5530.
[37]. Zoback MD, Mastin L, Barton C. In situ stress measurements in deep boreholes using hydraulic fracturing, wellbore breakouts and Stonely wave polarization. ISRM International Symposium, Stockholm, Sweden: International Society for Rock Mechanics and Rock Engineering; 1986.
[38]. Zoback MD, Barton CA, Brudy M, Castillo DA, Finkbeiner T, Grollimundb BR, et al. Determination of stress orientation and magnitude in deep wells. International Journal of Rock Mechanics & Mining Sciences 2003;40:1049–76.
[39]. Perdona P, C. Rabe. Laboratory test and logging campaign for geomechanical application in SAGD process for heavy oil reservoirs in Venezuela. In: Zhao J, Labiouse V, Dudt J-P, Mathier J-F, editors. EUROCK 2010:, 2010, p. 737–40. | ||
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