A New Method for Production-Data Analysis and Well Testing by Use of Superposition Rate
- Peter Liang (NuVista Energy Limited) | Roberto Aguilera (University of Calgary) | Louis Mattar (IHS Global Canada Limited)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- February 2018
- Document Type
- Journal Paper
- 1 - 16
- 2018.Society of Petroleum Engineers
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This research presents a new method to analyze production- and well-test data: the superposition rate. The method was developed from the well-accepted superposition principle. It is presented in a generalized form and is applicable to data in transient flow (including radial, linear, and bilinear), as well as in boundary-dominated flow (BDF).
The superposition-rate method is validated by synthetic data generated from reservoir modeling. Moreover, a practical work flow of implementing the superposition rate in production-data and well-test analysis is presented. Finally, real-field examples are used to demonstrate the practicality of superposition rate.
A comparison between the superposition-rate and superposition-time methods is presented. The superposition rate shows advantages over the superposition time. A key improvement of the superposition rate in quality diagnostics and data analysis is that it does not modify time scale. Consequently, the superposition rate keeps all production data in the sequence of their occurrence.
|File Size||1 MB||Number of Pages||16|
Anderson, D. M. and Mattar, L. 2003. Material-Balance-Time During Linear and Radial Flow. Presented at the Canadian International Petroleum Conference, Calgary, 7–9 June. PETSOC-2003-201. https://doi.org/10.2118/2003-201.
Anderson, D. M. and Mattar, L. 2005. An Improved Pseudo-Time for Gas Reservoirs With Significant Transient Flow. Presented at the Canadian International Petroleum Conference, Calgary,7–9 June. PETSOC-2005-114. https://doi.org/10.2118/2005-114.
Cinco-Ley, H. and Samaniego-V., F. 1981. Transient Pressure Analysis for Fractured Wells. J Pet Technol 33 (9): 1749–1766. SPE-7490-PA. https://doi.org/10.2118/7490-PA.
Gringarten, A. C., Ramey, H. J., and Raghavan, R. 1974. Unsteady-State Pressure Distributions Created by a Well with a Single Infinite-Conductivity Vertical Fracture. SPE J. 14 (4): 347–360. SPE 4051-PA. SPE-4051-PA. https://doi.org/10.2118/4051-PA.
Liang, P., Aguilera, R., and Mattar, L. 2016. A New Method for Production Data Analysis and Well Testing Using Superposition-Rate. Presented at the Unconventional Resources Technology Conference, San Antonio, Texas, 1–3 August. URTEC-2458362-MS. https://doi.org/10.15530/URTEC-2016-2458362.
Liang, P., Mattar, L., and Moghadam, S. 2011. Analyzing Variable Rate/Pressure Data in Transient Linear Flow in Unconventional Gas Reservoirs. Presented at the Canadian Unconventional Resources Conference, Calgary, 15–17 November. SPE-149472-MS. https://doi.org/10.2118/149472-MS.
Liang, P., Rahmanian, M., and Mattar, L. 2013. Superposition-Rate as An Alternative to Superposition-Time. Presented at the SPE Unconventional Resources Conference Canada, Calgary, 5–7 November. SPE-167124-MS. https://doi.org/10.2118/167124-MS.
Mattar, L. and Anderson, D. 2005. Dynamic Material Balance (Oil and Gas-In-Place Without Shut-Ins). Presented at the Canadian International Petroleum Conference, Calgary, 7–9 June. PETSOC-2005-113. https://doi.org/10.2118/2005-113.
Thompson, J. M., Liang, P., and Mattar, L. 2012. What Is Positive About Negative Intercepts. Presented at the SPE Canadian Unconventional Resources Conference, Calgary, 30 October–1 November. SPE-162647-MS. https://doi.org/10.2118/162647-MS.
Van Everdingen, A. F. and Hurst, W. 1949. The Application of Laplace Transformation to Flow Problems in Reservoirs. J Pet Technol 1 (12): 305–324. SPE 949305-G. SPE-949305-G. https://doi.org/10.2118/949305-G.
Wattenbarger, R. A., El-Banbi, A. H., Villegas, M. E. et al. 1998. Production Analysis of Linear Flow Into Fractured Tight Gas Wells. Presented at the Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, Denver, 5–8 April. SPE-39931-MS. https://doi.org/10.2118/39931-MS.