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Impact of Completion Design on Fracture Complexity in Horizontal Shale Wells
- Ripudaman Manchanda (University of Texas at Austin) | Mukul M. Sharma (University of Texas at Austin)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- February 2014
- Document Type
- Journal Paper
- 78 - 87
- 2014.Society of Petroleum Engineers
- 4.1.2 Separation and Treating, 5.3.4 Integration of geomechanics in models, 2.5.2 Fracturing Materials (Fluids, Proppant)
- fracture complexity, stress contrast, Texas two step, horizontal well, hydraulic fracturing
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- 855 since 2007
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A proppant-filled fracture induces mechanical stresses in the surrounding rock that cause a reduction in the horizontal-stress contrast and stress reorientation around the open fracture. A 3D geomechanical model is used to simulate the stress reorientation caused by open fractures and to generate horizontal-stress-contrast contour maps. The reduction in horizontal-stress contrast can lead to increased fracture complexity. This paper describes ways to increase fracture complexity by varying the completion design. In this paper, we identify the impact of operator-controllable variables in a completion design on fracture complexity. This can lead to more-effective completion designs that improve well productivity, reservoir drainage, and, ultimately, the estimated ultimate recovery (EUR). The possibility of greater fracture complexity and reduced/effective fracture spacing and, thus, a higher drainage area is demonstrated for the alternate fracturing sequence in comparison to the conventional fracturing sequence. The Young’s-modulus value of the shale and the in-situ horizontal-stress contrast are shown to be significant factors controlling the extent of fracture complexity generated in a given reservoir. In addition, the effect of proppant mass injected per stage is also shown to significantly impact fracture complexity. We provide optimal ranges of fracture spacing and proppant volume for the various shale formations analyzed. The use of these guidelines should result in more fracture complexity than would otherwise be observed.The results presented in the paper provide the operator with the knowledge to design completions and fracture treatments (proppant volume, fracture spacing, and sequencing) to maximize reservoir drainage and to increase EURs. This should lead to more-effective completion designs.
Bai, M., Green, S., and Suarez-Rivera, R. 2005. Effect of Leakoff Variation on Fracturing Efficiency for Tight Shale Gas Reservoirs. Paper ARMA/USRMS 05-697 presented at the 40th US Symposium on Rock Mechanics, Anchorage, Alaska, 25–29 June.
Brown, S., Harstad, H., Lorenz, J. et al. 1995. Geotechnology for Low-Permeability Gas Reservoirs. http://www.netl.doe.gov/kmd/cds/disk7/disk2/WGS%5CGeotechnology%20for%20Low-Permability%20Reservoirs%20(Jun%201995).pdf (downloaded 5 June 2012).
Cipolla, C.L., Warpinski, N.R., Mayerhofer, M.J. et al. 2010. The Relationship Between Fracture Complexity, Reservoir Properties, and Fracture Treatment Design. SPE Prod & Oper 25 (4): 438–452. http://dx.doi.org/10.2118/115769-PA.
Dahi-Taleghani, A. and Olson, J.E. 2011. Numerical Modeling of Multistranded-Hydraulic-Fracture Propagation: Accounting for the Interaction Between Induced and Natural Fractures. SPE J. 16 (3): 575–581. http://dx.doi.org/10.2118/124884-PA.
East, L. Jr., Soliman, M.Y., and Augustine, J. 2011. Methods for Enhancing Far-Field Complexity in Fracturing Operations. SPE Prod & Oper 26 (3): 291–303. http://dx.doi.org/10.2118/133380-PA.
Fisher, M.K., Heinze, J.R., Harris, C.D. et al. 2004. Optimizing Horizontal Completion Techniques in the Barnett Shale Using Microseismic Fracture Mapping. Paper SPE 90051 presented at the SPE Annual Technical Conference and Exhibition, Houston, Texas, 26–29 September. http://dx.doi.org/10.2118/90051-MS.
Gale, J.F.W., Reed, R.M., and Holder, J. 2007. Natural Fractures in the Barnett Shale and Their Importance for Hydraulic Fracture Treatments. AAPG Bull. 91 (4): 603–622. http://dx.doi.org/10.1306/11010606061.
Itasca Consulting Group, Inc. 2012. “FLAC3D,” version 5.0, Minneapolis.
Itasca Consulting Group, Inc. 2013. Software–FLAC3D, http://www.itascacg.com/software/flac3d (accessed 19 November 2013).
Jaeger, J.C. and Cook, N.G.W. 1979. Fundamentals of Rock Mechanics. London: Chapman and Hall.
Manchanda, R., Roussel, N.P., and Sharma, M.M. 2012. Factors Influencing Fracture Trajectories and Fracturing Pressure Data in a Horizontal Completion. Paper ARMA 12-633 presented at the 46th US Rock Mechanics/Geomechanics Symposium, Chicago, Illinois, 24–27 June.
Manchanda, R. and Sharma, M.M. 2013. Time-Delayed Fracturing: A New Strategy in Multi-Stage, Multi-Well Pad Fracturing. Paper SPE 166489 presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 30 September–2 October. http://dx.doi.org/10.2118/166489-MS.
Manchanda, R., Sharma, M.M., and Holzhauser, S. 2013. Time-Dependent Fracture Interference Effects in Pad Wells. Paper SPE 164534 presented at the SPE Unconventional Resources Conference, The Woodlands, Texas, 10–12 April. http://dx.doi.org/10.2118/164534-MS.
Mayerhofer, M.J., Lolon, E.P., Warpinski, N.R. et al. 2010. What Is Stimulated Reservoir Volume? SPE Prod & Oper 25 (1): 89–98. http://dx.doi.org/10.2118/119890-PA.
Mayerhofer, M.J., Lolon, E.P., Youngblood, J.E. et al. 2006. Integration of Microseismic Fracture Mapping Results With Numerical Fracture Network Production Modeling in the Barnett Shale. Paper SPE 102103 presented at the 2006 SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 24–27 September. http://dx.doi.org/10.2118/102103-MS.
Meyer, B. and Bazan, L. 2011. A Discrete Fracture Network Model for Hydraulically Induced Fractures—Theory, Parametric and Case Studies. Paper SPE 140514 presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 24–26 January. http://dx.doi.org/10.2118/140514-MS.
Nagel, N., Gil, I., and Sanchez-Nagel, M. 2011. Simulating Hydraulic Fracturing in Real Fractured Rocks—Overcoming the Limits of Pseudo3D Models. Paper SPE 140480 presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 24–26 January. http://dx.doi.org/10.2118/140480-MS.
Nordgren, R.P. 1972. Propagation of a Vertical Hydraulic Fracture. SPE J. 12 (4): 306–314. http://dx.doi.org/10.2118/3009-PA.
Olsen, T., Bratton, T., and Thiercelin, M. 2009. Quantifying Proppant Transport for Complex Fractures in Unconventional Formations. Paper SPE 119300 presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 19–21 January. http://dx.doi.org/10.2118/119300-MS.
Perkins, T.K. and Kern, L.R. 1961. Widths of Hydraulic Fractures. J. Pet. Tech. 13 (9): 937–949. http://dx.doi.org/10.2118/89-PA.
Roussel, N.P., Manchanda, R., and Sharma, M.M. 2012. Implications of Fracturing Pressure Data Recorded During a Horizontal Completion on Stage Spacing Design. Paper SPE 152631 presented at the SPE Hydraulic Fracturing and Technical Conference, The Woodlands, Texas, 6–8 February. http://dx.doi.org/10.2118/152631-MS.
Roussel, N.P. and Sharma, M.M. 2011a. Strategies to Minimize Frac Spacing and Stimulate Natural Fractures in Horizontal Completions. Paper SPE 146104 presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, 30 October–2 November. http://dx.doi.org/10.2118/146104-MS.
Roussel, N.P. and Sharma, M.M. 2011b. Optimizing Fracture Spacing and Sequencing in Horizontal-Well Fracturing. SPE Prod & Oper. 26 (2): 173–184. http://dx.doi.org/10.2118/127986-PA.
Sneddon, I.P. 1946. The Distribution of Stress in the Neighbourhood of a Crack in an Elastic Solid. Proc. R. Soc. Lond. A 187 (1009): 229–260.
Soliman, M.Y., East, L., and Augustine, J. 2010. Fracturing Design Aimed at Enhancing Fracture Complexity. Paper SPE 130043 presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, Barcelona, Spain, 14–17 June. http://dx.doi.org/10.2118/130043-MS.
Warpinski, N. and Branagan, P.T. 1989. Altered-Stress Fracturing. J. Pet Tech 41 (9): 990–997. http://dx.doi.org/10.2118/17533-PA.
Weng, X., Kresse, O., Cohen, C.E. et al. 2011. Modeling of Hydraulic Fracture Network Propagation in a Naturally Fractured Formation. Paper SPE 140253 presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 24–26 January. http://dx.doi.org/10.2118/140253-MS.
Weng, X., Pandey, V., and Nolte, K.G. 2002. Equilibrium Test-A Method for Closure Pressure Determination. Paper SPE 78173 presented at the SPE/ISRM Rock Mechanics Conference, Irving, Texas, 20–13 October. http://dx.doi.org/10.2118/78173-MS.
Weng, X. and Siebrits, E. 2007. Effect of Production-Induced Stress Field on Refracture Propagation and Pressure Response. Paper SPE 106043 presented at the SPE Hydraulic Fracturing Technology Conference, College Station, Texas, 29–31 January. http://dx.doi.org/10.2118/106043-MS.
Wu, H. and Pollard, D. 2002. Imaging 3D Fracture Networks Around Boreholes. AAPG Bull. 86 (4): 593–604. http://dx.doi.org/10.1306/61EEDB52-173E-11D7-8645000102C1865D.
Xu, W., Thiercelin, M., Ganguly, U. et al. 2010. Wiremesh: A Novel Shale-Fracturing Simulator. Paper SPE 132218 presented at the CPS/SPE International Oil and Gas Conference and Exhibition, Beijing, China, 8–10 June. http://dx.doi.org/10.2118/132218-MS.
Zoback, M.D. 2007. Reservoir Geomechanics. Cambridge: University Press.
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