Quantitative Properties From Drill Cuttings To Improve the Design of Hydraulic-Fracturing Jobs in Horizontal Wells
- Camilo Ortega (University of Calgary) | Roberto Aguilera (University of Calgary)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- January 2014
- Document Type
- Journal Paper
- 55 - 68
- 2014.Society of Petroleum Engineers
- 5.6.1 Open hole/cased hole log analysis, 3.2.3 Hydraulic Fracturing Design, Implementation and Optimisation, 5.1.1 Exploration, Development, Structural Geology, 1.6 Drilling Operations
- geomechanical properties , tight formations , horizontal wells , drill cuttings , multistage hydraulic fracturing
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- 649 since 2007
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The study proposes a method for quantitative determination of porosity, permeability, and rock-mechanics properties from drill cuttings of at least 1 mm. The porosity value is used for determining a brittleness index by implementing sonic-derived porosity theory and a dipole sonic log from an offset well. A new parameter is introduced in this work to give a quantitative value to microscopic observations related to natural-fracture features in drill cuttings. It is called “frac value” and in conjunction with the brittleness index and permeability constitutes the main result of the methodology: the cut log. Quantitative data extracted from drill cuttings are important because the amount of information collected in horizontal wells drilled through tight formations, including cores and well logs, is rather limited in most instances. This paper is based on a Canadian case study with implications for selecting optimum intervals for hydraulic fracturing in a tight gas reservoir. However, the method should also be suitable for global applications in all types of reservoirs (unconventional and conventional) where good-quality drill cuttings might be available. Data extracted from the previous steps are useful for multistage hydraulic-fracturing 3D simulation of horizontal wells. This provides additional information to stimulation designers for deciding where to initiate hydraulic fractures and how to optimize fracture spacing and fracture size per stage instead of considering a homogeneous reservoir volume throughout the whole lateral section. It is concluded that the proposed method provides a useful tool for evaluation of direct sources of information that are available in many cases (drill cuttings) but are rarely evaluated quantitatively. The proposed method allows improved design of multistage hydraulic-fracturing jobs in horizontal wells.
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Aguilera, R. 2003. Geologic and Engineering Aspects of Naturally Fractured Reservoirs. CSEG Recorder 28 (2): 44–49.
Aguilera, R. 2010. Flow Units: From Conventional to Tight Gas to Shale Gas Reservoirs. Presented at the SPE Trinidad and Tobago Energy Resources Conference, Port of Spain, Trinidad, 27–30 June. SPE-132845-MS. http://dx.doi.org/10.2118/132845-MS.
Aguilera, R. 2013. Flow Units: From Conventional to Tight Gas to Shale Gas to Tight Oil to Shale Oil Reservoirs. Presented at the SPE Western Regional & AAPG Pacific Section Meeting, 2013 Joint Technical Conference, Monterey, California, USA, 19−25 April. SPE-165360-MS. http://dx.doi.org/10.2118/165360-MS.
API RP 40, Recommended Practices for Core Analysis, second edition. 1998. Washington, DC: API.
Barree, R.D., Gilbert, J.V., and Conway, M. 2009. Stress and Rock Property Profiling for Unconventional Reservoir Stimulation. Presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, USA, 19-21 January. SPE-118703-MS. http://dx.doi.org/10.2118/118703-MS.
Contreras, O. 2011. An Innovative Approach for Pore Pressure Prediction and Drilling Optimization in the Abnormally Sub-pressured “Deep basin” of the Western Canada Sedimentary Basin. MSc thesis, Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada.
Contreras, O., Hareland, G., and Aguilera, R. 2012. An Innovative Approach for Pore Pressure Prediction and Drilling Optimization in an Abnormally Subpressured Basin. SPE Drill & Compl 27 (4): 531-545. SPE-148947-PA. http://dx.doi.org/10.2118/148947-PA.
Culec, L. 1977. Study of Problems Related to the Restoration Of the Natural State of Core Samples. J Can Pet Technol 16 (4): 68–80. PETSOC-77-04-09. http://dx.doi.org/10.2118/77-04-09.
Daneshy, A.A. 2011. Hydraulic Fracturing of Horizontal Wells: Issues and Insights. Presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, USA, 24-26 January. SPE-140134-MS. http://dx.doi.org/10.2118/140134-MS.
Egermann, P., Lenormand, R., Longeron, D. et al. 2002. A Fast and Direct Method of Permeability Measurements on Drill Cuttings. Presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA, 29 September-2 October. SPE-77563-MS. http://dx.doi.org/10.2118/77563-MS.
Egermann, P., Doerler, N., Fleury, M. et al. 2004. Petrophysical Measurements From Drill Cuttings an Added Value for the Reservoir Characterization Process. Presented at the Abu Dhabi International Conference and Exhibition, Abu Dhabi, UAE, 10-13 October. SPE-88684-MS. http://dx.doi.org/10.2118/88684-MS.
Eissa, E.A. and Kazi, A. 1988. Relation between static and dynamic Young's moduli of rocks. Int. J. Rock Mech. Min. Sci. & Geomech. Abstracts 25 (6): 479-482. http://dx.doi.org/10.1016/0148-9062(88)90987-4.
Hews, P. 2011. Structural Features That Can Be Identified From Drill Cuttings. Hara Consulting Geological Workshop, Calgary, Alberta, Canada, September 2011.
Lapeyrouse, N.J. 2002. Formulas and Calculations for Drilling, Production and Workover. Burlington, Massachusetts: Gulf Professional Publishing/Elsevier.
Lenormand, R. and Fonta, O. 2007. Advances In Measuring Porosity And Permeability From Drill Cuttings. Presented at the SPE/EAGE Reservoir Characterization and Simulation Conference, Abu Dhabi, UAE, 28-31 October. SPE-111286-MS. http://dx.doi.org/10.2118/111286-MS.
Luffel, D.L., Hopkins, C.W., and Schettler, P.D. Jr. 1993. Matrix Permeability Measurement of Gas Productive Shales. Presented at the SPE Annual Technical Conference and Exhibition, Houston, 3-6 October. SPE-26633-MS. http://dx.doi.org/10.2118/26633-MS.
Masters, J.A. 1979. Deep Basin Gas Trap, Western Canada. AAPG Bull. 63 (2): 152-181.
Moos, D., Lacazette, A., Vassilellis, G.D. et al. 2011. Predicting Shale Reservoir Response to Stimulation: the Mallory 145 Multi-Well Project. Presented at the SPE Annual Technical Conference and Exhibition, Denver, 30 October-2 November. SPE-145849-MS. http://dx.doi.org/10.2118/145849-MS.
Mullen, M., Roundtree, R., and Barree, R.D. 2007. A Composite Determination of Mechanical Rock Properties for Stimulation Design (What To Do When You Don’t Have a Sonic Log). Presented at the Rocky Mountain Oil & Gas Technology Symposium, Denver, 16–18 April. SPE-108139-MS. http://dx.doi.org/10.2118/108139-MS.
Ortega, C. 2012. Drill Cuttings-Based Methodology to Optimize Multi-Stage Hydraulic Fracturing in Horizontal Wells and Unconventional Gas Reservoirs. MSc thesis, Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada.
Ortega, C. and Aguilera, R. 2013. A Complete Petrophysical-Evaluation Method for Tight Formations From Drill Cuttings Only in the Absence of Well Logs. SPE J. SPE-161875-PA (in press; posted 24 May 2013).
Pickett, G.R. 1963. Acoustic Character Logs and Their Applications in Formation Evaluation. J Pet Technol 15 (6): 659-667. SPE-452-PA. http://dx.doi.org/10.2118/452-PA.
Raymer, L.L., Hunt, E.R., and Gardner, J.S. 1980. An Improved Sonic Transit Time-To-Porosity Transform. Presented at the SPWLA 21st Annual Logging Symposium, Lafayette, Louisiana, USA, 8–11 July. Paper P.
Reid, D. 2003. Characterization of Reservoir Rock Using Drill Cuttings. Internal Report, Reservoir Department, Conoco Phillips, Calgary Alberta, Canada
Rickman, R., Mullen, M.J., Petre, J.E. et al. 2008. A Practical Use of Shale Petrophysics for Stimulation Design Optimization: All Shale Plays Are Not Clones of the Barnett Shale. Presented at the SPE Annual Technical Conference and Exhibition, Denver, 21-24 September. SPE-115258-MS. http://dx.doi.org/10.2118/115258-MS.
Santarelli, F.J., Marsala, A.F., Brignoli, M. et al. 1998. Formation Evaluation From Logging on Cuttings. SPE Res Eval & Eng 1 (3): 238-244. SPE-36851-PA. http://dx.doi.org/10.2118/36851-PA.
Schmoker, J.W. and Klett, T.R. 1995. Petroleum Systems and Geologic Assessment of Oil and Gas in the Southwestern Wyoming Province, Wyoming, Colorado, and Utah. In U.S. Geological Survey Assessment Concepts for Conventional Petroleum Accumulations, D.L. Gautier, G.L. Dolton, K.I. Takahashi, and K.L. Varnes, DDS-69-D, Chap. 19. Denver, Colorado: US Geological Survey. http://pubs.usgs.gov/dds/dds-069/dds-069-d/REPORTS/69_D_CH_19.pdf.
Sneider, R.M. and King, H.R. 1984. Integrated Rock-Log Calibration in the Elmworth Field - Alberta, Canada: Reservoir Rock Detection and Characterization: Part I. In Elmworth: Case Study of a Deep Basin Gas Field, J. Masters, No. 38, 205–214. Tulsa, Oklahoma: AAPG Special Volumes, AAPG.
Solano, N.A. 2010. Reservoir Characterization of the Upper Jurassic—Lower Cretaceous Nikanassin Group. MSc thesis, Geoscience Department, University of Calgary, Calgary, Alberta (September 2010).
Terry, R.D. and Chillingar, G.V. 1955. Summary of “Concerning some additional aids in studying formations” by M.S. Shvetsov. J. Sediment. Petrol. 25 (3): 229–234.