Deepwater-Reservoir Characterization by Use of Tidal Signal Extracted From Permanent Downhole Pressure Gauge
- Xingru Wu (University of Oklahoma) | Kegang Ling (University of North Dakota) | Dexin Liu (China University of Petroleum)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- August 2013
- Document Type
- Journal Paper
- 390 - 400
- 2013. Society of Petroleum Engineers
- 5.6.11 Reservoir monitoring with permanent sensors, 5.1 Reservoir Characterisation, 4.3.4 Scale
- 3 in the last 30 days
- 556 since 2007
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Permanent-downhole-gauge (DHG) technology has been used widely indeepwater-reservoir development in the last decade and is playing anincreasingly significant role in real-time reservoir/well surveillance andmanagement. Tidal signals extracted from this highly accurate and precisedevice can be used for reservoir characterization such as monitoring thechanges of saturations and estimating rock/pore compressibility. Most previousworks have treated tidal signals as pressure "noise," and little has beendiscussed on how to use tidal information in reservoir characterization. Thispaper will address how to use the fast Fourier transform (FFT) to extract tidalsignals and the theories and methods for processing the signal to achievereservoir characterization. In addition, a couple of examples from a deepwaterfield will be discussed to illustrate how to use tidal information to estimatepore compressibility, monitor dynamic fluid-saturation change, and detect thepresence of a secondary gas cap. This paper will show that FFT is a fast andreliable method for processing the DHG pressure data for tidal signals that canbe used for reservoir characterization in multiple dimensions. Furthermore, theresults (pore compressibility and saturation) obtained from the tidal signalsare unique because they cannot be obtained in the laboratory, by simulation, orby direct measurement because of the scale affected by tides.
|File Size||1 MB||Number of Pages||11|
Araujo, M.A., Campos, W., and Moreno, R. 2012. Filtering of Tide Effects inFormation Evaluation Data. Paper SPE 153566 presented at SPE Latin America andCaribbean Petroleum Engineering Conference, Mexico City, Mexico, 16-18 April.http://dx.doi.org/10.2118/153566-MS.
Arditty, P., Ramey, Jr., H.J., and Nur, A.M. 1978. Response of a ClosedWell-Reservoir System to Stress Induced by Earth Tides. Paper SPE 7484presented at the SPE Annual Fall Technical Conference and Exhibition, Houston,Texas, 1-3 October. http://dx.doi.org/10.2118/7484-MS.
Chang, E. and Firoozabadi, A. 2000. Gravitational Potential Variations ofthe Sun and Moon for Estimation of Reservoir Compressibility. SPE J.5 (4): 456-465. http://dx.doi.org/10.2118/67952-PA.
Cooley, J.W., and Tukey, J.W. 1965. An Algorithm for the Machine Calculationof Complex Fourier Series. Math. Comp. 297 -301. http://dx.doi.org/10.1090/S0025-5718-1965-0178586-1.
de Oliveira Silva, M. and Kato, E. 2004. Reservoir Management OptimizationUsing Permanent Downhole Gauge Data. Paper SPE 90973 presented at SPE AnnualTechnical Conference and Exhibition, Houston, Texas, 26-29 September. http://dx.doi.org/10.2118/90973-MS.
Dean, G.A., Hardy, R., and Eltvik, P. 1994. Monitoring Compaction andCompressibility Changes in Offshore Chalk Reservoirs. SPE Form Eval 9 (1): 73-76. http://dx.doi.org/10.2118/23142-PA.
Gallivan, J.D., Kilvington, L.J., and Shere, A.J. 1988. Experience WithPermanent Bottomhole Pressure/Temperature Gauges in a North Sea Oil Field.SPE Prod Eng 3 (4): 637-642. http://dx.doi.org/10.2118/13988-PA.
Geertsma, J. 1966. Problems of Rock Mechanics in Petroleum ProductionEngineering. Paper 1CONGRESS-1966-099 presented at the 1st ISRM Congress,Lisbon, Portugal, 25 September-1 October.
Hemala, M.L., and Balnaves, C. 1986. Tidal Effect in Petroleum Well Testing.Paper SPE 14067 presented at the Offshore South East Asia Show, Singapore,28-31 January. http://dx.doi.org/10.2118/14607-MS.
Khurana, A.K. 1976. Influence of Tidal Phenomena on Interpretation ofPressure Build-up and Pulse Tests. The APEA J. 16:99-105.
Kragas, T., Turnbull, B., and Francis, M. 2004. Permanent Fiber-OpticMonitoring at Northstar: Pressure/Temperature System and Data Overview. SPEProd & Fac 19 (2): 86-93. http://dx.doi.org/10.2118/87681-PA.
Langaas, K., Nilsen, K.I., and Skjaeveland, S. 2006. Tidal Pressure Responseand Surveillance of Water Encroachment. SPE Res Eval & Eng 9 (4): 335-344. http://dx.doi.org/10.2118/95763-PA.
Levitan, M. and Vinh, P. 2003. Identification of Tidal Signal in Well TestPressure Data. Paper SPE 84376 presented at SPE Annual Technical Conference andExhibition, Denver, Colorado, 5-8 October. http://dx.doi.org/10.2118/84376-MS.
McKee, C., Bumb, A., and Horner, D.A. 1990. Use of Barometric Response toObtain in-Situ Compressibility of a Coalbed Methane Reservoir. SPE FormEval 5 (2): 167-170. http://dx.doi.org/10.2118/17725-PA.
Newman, G. 1973. Pore-Volume Compressibility of Consolidated, Friable, andUnconsolidated Reservoir Rocks Under Hydrostatic Loading. J. Pet Tech 25 (2): 129-134. http://dx.doi.org/10.2118/3835-PA.
Ouyang, L.B. and Kikani, J. 2002. Improving Permanent Downhole Gauge (Pdg)Data Processing Via Wavelet Analysis. Paper SPE 78290 presented at the EuropeanPetroleum Conference, Aberdeen, United Kingdom, 29-31 October. http://dx.doi.org/10.2118/78290-MS.
Ouyang, L.B. and Sawiris, R. 2003. Production and Injection Profiling: ANovel Application of Permanent Downhole Pressure Gauges. Paper SPE 84399presented at the SPE Annual Technical Conference and Exhibition, Denver,Colorado, 5-8 October. http://dx.doi.org./10.2118/84399-MS.
Pinilla, J.F., Trevisan, O.V., and Tinoco, F.L. 1997. Coupling Reservoir andGeomechanics to Interpret Tidal Effects in a Well Test. Paper SPE 38939presented at the Annual Technical Conference and Exhibition, San Antonio,Texas, 5-8 October. http://dx.doi.org/10.2118/38939-MS.
Rowell, D. 2008. 2.161 Signal Processing: Continuous and Discrete, Fall 2008(Mit Opencourseware: Massachusetts Institute of Technology: MitOpercourseware), http://ocw.mit.edu/courses/mechanical-engineering/2-161-signal-processing-continuous-and-discrete-fall-2008/lecture-notes/lecture_11.pdf. (Accessed October 13, 2012). License: Creative Commons BY-NC-SA.
Schlumberger. 2013. Signature Quartz Gauges 2013 [cited April 16,2013]. Available fromhttp://www.slb.com/~/media/Files/testing/product_sheets/pressure/signature_quartz_gauge_ps.pdf.
Shepherd, C.E., Neve, P., and Wilson, D.C. 1991. Use and Application ofPermanent Downhole Pressure Gauges in the Balmoral Field and SatelliteStructures. SPE Prod Eng 6 (3): 271 -276. http://dx.doi.org/10.2118/20831-PA.
Strobel, C.J., Gulati, M.S., and Ramey, H.J. Jr. 1976. Reservoir Limit Testsin a Naturally Fractured Reservoir—A Field Case Study Using Type Curves. JPet Tech 28 (9): 1097-1106. http://dx.doi.org/10.2118/5596-PA.
Unneland, T. 1994. Permanent Downhole Gauges Used in Reservoir Management ofComplex North Sea Oil Fields. SPE Prod & Fac 9 (3):195-203. http://dx.doi.org/10.2118/26781-PA.
Unneland, T., Manin, Y., and Kuchuk, F. 1998. Permanent Gauge Pressure andRate Measurements for Reservoir Description and Well Monitoring: Field Cases.SPE Res Eval & Eng 1 (3): 224-230. http://dx.doi.org/10.2118/38658-PA.
Van der Kamp, G. and Gale, J.E. 1983. Theory of Earth Tide and BarometricEffects in Porous Formations With Compressible Grains. Water Resour.Res. 19 (2): 538-544.
Wannell, M.J., and Morrison, S.J. 1990. Vertical Permeability Measurement inNew Reservoirs Using Tidal Pressure Changes. Paper SPE 20532 presented at theSPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 23-26September. http://dx.doi.org/10.2118/20532-MS.
Wu, X., Humphrey, K., and Liao, T. 2012. Enhancing Production Allocation inIntelligent Wells Via Application of Models and Real-Time Surveillance Data.Paper SPE 155031 presented at the SPE International Production and OperationsConference & Exhibition, Doha, Qatar, 14-16 May. http://dx.doi.org/10.2118/155031-MS.
Zhao, Y. and Reynolds, A. 2009. Estimation and Removal of Tidal Effects FromPressure Data. SPE J. 14 (1): 144-152. http://dx.doi.org/10.2118/103253-PA.