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Orientation of Hydraulic Fracture Initiation from Perforated Horizontal Wellbores

Authors
Andreas Michael (Louisiana State University)
DOI
https://doi.org/10.2118/199766-STU
Document ID
SPE-199766-STU
Publisher
Society of Petroleum Engineers
Source
SPE Annual Technical Conference and Exhibition, 30 September - 2 October, Calgary, Alberta, Canada
Publication Date
2019
Document Type
Conference Paper
Language
English
ISBN
978-1-61399-663-8
Copyright
2019. Society of Petroleum Engineers
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739 in the last 30 days
2,383 since 2007
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Abstract

The orientation of hydraulic fractures controls the productivity from hydrocarbon reservoirs. Productivity from low permeability formations is greatly improved having multiple fractures oriented transversely rather than longitudinally, relative to a horizontal wellbore. Analytical approximations from the literature for the longitudinal and transverse fracturing stresses are modified to incorporate pore pressure effects and then used to develop a criterion for the orientation of fractures initiating from perforated wells. The validity of this criterion is assessed numerically and is found to overestimate transverse fracture initiation, which occurs under a narrow range of conditions; when the formation tensile strength is below a critical value and the breakdown pressure within a "window."

In horizontal wells, it is easier to achieve longitudinal fracture initiation, as transverse fracture initiation only occurs over a narrow wellbore pressure-at-breakdown window, while longitudinal fracture initiation occurs at comparatively higher wellbore pressures. The numerical study shows that in contradiction with existing analytical approximations, the tangential stress which induces transverse fracture initiation, is a stronger function of wellbore pressure just as the stress inducing longitudinal fracture initiation is. This reduces the breakdown pressure window for transverse fracture initiation compared to what the derived analytical approximations predict. Furthermore, this creates an additional constraint for transverse fracture initiation; the critical tensile strength value, which determines the maximum tensile strength for which transverse fracture initiation is possible for a given stress state.

The range of the in-situ stress states where transverse fracture initiation is promoted can be visualized in dimensionless plots for perforated wells. This is useful for completion engineers; when targeting low permeability formations, wells must be made to induce multiple transverse fractures. A numerical simulation scheme performed on several stress states demonstrates frequent occurrence of longitudinal fracture initiation, implying that the propagating fracture re-orients in the near-wellbore region to become aligned perpendicular to the least compressive in-situ principal stress. This is the cause of near-wellbore tortuosity, which in turn is a cause completions and production-related problems, such as early screenouts and post-stimulation well underperformance.

File Size  1 MBNumber of Pages   23

Alabbad, E. A. (2014). Experimental Investigation of Geomechanical Aspects of Hydraulic Fracturing Unconventional Formations, Master's Thesis at the University of Texas at Austin.

Anderson, E. M. (1951). The Dynamics of Faulting. 2nd ed., Edinburgh: Oliver & Boyd.

Balen, R. M., Mens, H.-Z., & Economides, M. J. (1988). Applications of the Net Present Value (NPV) in the Optimization of Hydraulic Fractures. Society of Petroleum Engineers. doi:10.2118/18541-MS.

Barree, R. D., and Miskimins, J. L. (2015). Calculation and Implications of Breakdown Pressures in Directional Wellbore Stimulation. Society of Petroleum Engineers. February 3. doi:10.2118/173356-MS.

Byerlee, J. D. (1978). "Friction of Rocks." Pure and Applied Geophysics PAGEOPH, vol. 116, no. 4-5, 1978, pp. 615–626., doi:10.1007/bf00876528.

Daneshy, A. A. (1973). A Study of Inclined Hydraulic Fractures. Society of Petroleum Engineers. April 1. doi:10.2118/4062-PA.

Deimbacher, F. X., Economides, M. J., and Jensen, O. K. (1993). Generalized Performance of Hydraulic Fractures With Complex Geometry Intersecting Horizontal Wells. Society of Petroleum Engineers. doi:10.2118/25505-MS.

Economides, M., and Martin, A. N. (2010). How To Decide Between Horizontal Transverse, Horizontal Longitudinal, and Vertical Fractured Completions. Society of Petroleum Engineers. doi:10.2118/134424-MS.

El Rabaa, W. (1989). Experimental Study of Hydraulic Fracture Geometry Initiated From Horizontal Wells. Society of Petroleum Engineers. doi:10.2118/19720-MS.

Feng, R., & Sarmadivaleh, M. (2019). An Integrated Fracturing Pressure Diagnostic and CT Scan Approach for Hydraulic Fracture Initiation and Propagation. In 81st EAGE Conference and Exhibition 2019.

Hossain, M. M., et al. (2000), "Hydraulic Fracture Initiation and Propagation: Roles of Wellbore Trajectory, Perforation and Stress Regimes." Journal of Petroleum Science and Engineering, vol. 27, no. 3-4, pp. 129–149., doi:10.1016/s0920-4105(00)00056-5.

Hubbert, M. K., and Willis, D. G. (1957). Mechanics Of Hydraulic Fracturing. Society of Petroleum Engineers.

"Itasca Consulting Group." Software | Itasca Consulting Group, www.itascacg.com/software.

Kirsch, G. (1898). Die theorie der elasticitaet und die beduerfnisse der festigkeitskehre. VDI-Z 42, 707

Koskella, Dave, et al. "Northside: Observation from an Underground Laboratory: An Integrated Approach to Unlocking Performance in the Niobrara." SPE-GCS, Noble Energy, Inc., 21 Jan. 2015, www.spegcs.org/events/2713/.

Kurdi, M. (2018, September 24). A New Computational Model to Predict Breakdown Pressures in Cased and Perforated Wells in Unconventional Reservoirs. Society of Petroleum Engineers. doi:10.2118/194038-STU.

Lee, H. P., J. E. Olson, J. Holder, J. F. W. Gale, and R. D. Myers (2015). The interaction of propagating opening mode fractures with preexisting discontinuities in shale, J. Geophys. Res. Solid Earth, 120, 169–181, doi:10.1002/2014JB011358.

Michael, A. (2014). Economic Implications Of The Current Geopolitical Forces Vis-à-vis Hydrocarbons On Global Energy Markets. Society of Petroleum Engineers. May 19. doi:10.2118/169832-MS.

Michael, A. (2016). Financial Impact of Price Volatility on the Oilfield Services Sector of the Petroleum Industry. May 10. Society of Petroleum Engineers. doi:10.2118/179962-MS.

Michael, A. (2016). Hydraulic Fracturing Optimization: Experimental Investigation of Multiple Fracture Growth Homogeneity via Perforation Cluster Distribution, Master's Report at the University of Texas at Austin.

Michael, A. (2019). The Net Present Value of a Hydraulic Fracture Treatment. Society of Petroleum Engineers. The Way Ahead, www.spe.org/en/twa/twa-article-detail/?art=5557

Michael, A., and Gupta (2019). Analysis of Drilling-Induced Tensile Fracture Initiation in Porous, Permeable Media Considering Fluid Infiltration. American Rock Mechanics Association. ARMA 19-2053.

Michael, A., and Gupta, I. (2018). Fluid-Driven Fracture Initiation During Loss of Control Situations. Abstract (MR51B-0062) presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 December

Michael, A., and Gupta, I. (2019). Orientation of Fracture Initiation in Poroelastic Media: Application in Unconventional Reservoirs. Society of Petroleum Engineers. doi:10.2118/195494-MS.

Michael, A., and Gupta, I. (2019). Orientation of Hydraulic Fracture Initiation in Poroelastic Media: An Analytical Criterion for Perforated Wellbores. European Association of Geoscientists & Engineers. 81st EAGE Annual Conference and Exhibition

Michael, A., Olson, J. E., and Balhoff, M. T. (2018). Analysis of Hydraulic Fracture Initiation From Perforated Horizontal Wellbores. American Rock Mechanics Association. August 21

Moos, D. (2012). "Geosciences Technology Workshop (Hydraulic Fracturing)." AAPG, Search and Discovery Article #80533, 14 Sept.

Nelson, E. J., et al. (2005). "Transverse Drilling-Induced Tensile Fractures in the West Tuna Area, Gippsland Basin, Australia: Implications for the in Situ Stress Regime." International Journal of Rock Mechanics and Mining Sciences, vol. 42, no. 3, April, pp. 361–371., doi:10.1016/j.ijrmms.2004.12.001.

Rybacki, E., et al. "What Controls the Mechanical Properties of Shale Rocks? â?" Part I: Strength and Young's Modulus." Journal of Petroleum Science and Engineering, vol. 135, 2015, pp. 702–722., doi:10.1016/j.petrol.2015.10.028.

Vakó, P., and Economides, M. J. (1995). Hydraulic Fracture Mechanics. Chichester: Wiley, Print.

Weijers, L. (1995). The Near-wellbore Geometry of Hydraulic Fractures Initiated from Horizontal and Deviated Wells, Ph.D. Thesis, Delft University of Technology, Delft, The Netherlands.

Wu, H., Golovin, E., Shulkin, Y., Chudnovsky, A., Dudley, J. W., & Wong, G. K. (2008, January 1). Observations of Hydraulic Fracture Initiation and Propagation in a Brittle Polymer. American Rock Mechanics Association.

Zoback, M. D. (2014). Reservoir Geomechanics. Cambridge: Cambridge UP, Print

Zoback, M. D., Rummel, F., Jung, R., and Raleigh, C. B. (1977). Laboratory hydraulic fracturing experiments in intact and pre-fractured rock. In International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (Vol. 14, No. 2, pp. 49-58). Pergamon. March

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