Rate-Transient Analysis in Multifractured Horizontal Wells of Tight Oil Reservoir
- Haitao Li (Southwest Petroleum University) | Hongwen Luo (Southwest Petroleum University) | Jianfeng Zhang (Southwest Petroleum University) | Junchao Wang (Xinjiang Oilfield Company of Petrochina)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- November 2018
- Document Type
- Journal Paper
- 718 - 738
- 2018.Society of Petroleum Engineers
- RTA, Multi-fractured Horizontal Well, Tight Oil, History Match, SRV and Hydraulic Fracture Properties
- 16 in the last 30 days
- 397 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
Multifractured horizontal wells (MFHWs) have become the most commonly used technology for developing unconventional oil and gas reservoirs. Because unconventional reservoirs are currently the focus of exploration and exploitation around the world, a growing number of researchers and scholars are concentrating on production-performance evaluation of unconventional MFHWs to obtain the stimulated reservoir volume (SRV) or hydraulic-fracture properties, which are usually obtained from expensive reservoir tests or production logs. Rate-transient-analysis (RTA) techniques that use continuous-production and flowing-pressure data have proved to be convenient and applicable approaches to estimate the reservoir parameters and hydraulic-fracture properties. Although many cases or work flows of RTA have been previously studied, most of those works were performed for shale-gas or conventional reservoirs. Few studies on RTA have been conducted for MFHWs completed in tight oil reservoirs, particularly for actual field cases in which the usually scattered production data significantly increase the difficulty in analyzing the production performance.
In this research, the authors focus on using convenient and economical methods (RTA techniques) to obtain the SRV parameters and hydraulic-fracture properties that characterize the fracturing-treatment effectiveness of an actual MFHW in a tight oil reservoir, which many engineers and technical personnel expect to achieve. A comprehensive work flow [including production-data filtering, flow-regime diagnosis, straight-line analysis, type-curve matching (TCM), analytical-model analysis (AMA), numerical-model analysis (NMA), and uncertainty and nonuniqueness analysis] has been developed to perform a production-performance analysis of an MFHW completed in a tight oil reservoir. In particular, two approaches for calculating the permeability of SRV (kSRV) and effective half-length of hydraulic fracture (Xf) have been introduced. Moreover, the dual permeability parameters, the storativity ratio, and the interporosity coefficient (ω and λ, respectively), have been derived to enter into the AMA model to improve the accuracy of history matching. With the combination of AMA and NMA, the estimated ultimate recovery (EUR) of an actual MFHW completed in a tight oil reservoir can be predicted. Considering the uncertainty and nonuniqueness of the original reservoir parameters or nature of the adopted methods, a probabilistic analysis using Monte Carlo simulation has been performed to address the uncertainty of the analysis results. In addition, a simplified application of the developed method has been introduced. To demonstrate the feasibility and practicability of the developed work flow, two field cases from an actual tight oil reservoir have been analyzed. The consistent analysis results for field cases validate the developed work flow and proposed methods.
|File Size||2 MB||Number of Pages||22|
Anderson, D. M., Liang, P., and Mangha, V. O. 2012. Probabilistic Forecasting of Unconventional Resources Using Rate Transient Analysis: Case Studies. Presented at the SPE Americas Unconventional Resources Conference, Pittsburgh, Pennsylvania, 5–7 June. SPE-155737-MS. https://doi.org/10.2118/155737-MS.
Anderson, D. M., Nobakht, M., Moghadam, S. et al. 2010. Analysis of Production Data From Fractured Shale Gas Wells. Presented at the SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, USA, 23–25 February. SPE-131787-MS. https://doi.org/10.2118/131787-MS.
Anderson, D. M., Turco, F., Virues, C. J. J. et al. 2013. Application of Rate Transient Analysis Workflow in Unconventional Reservoirs: Horn River Shale Gas Case Study. Presented at the SPE Unconventional Resources Conference and Exhibition-Asia Pacific, Brisbane, Australia, 11–13 November. SPE-167042-MS. https://doi.org/10.2118/167042-MS.
Chen, C.-C. and Rajagopal, R. 1997. A Multiply-Fractured Horizontal Well in a Rectangular Drainage Region. SPE J. 2 (4): 455–465. SPE-37072-PA. https://doi.org/10.2118/37072-PA.
Cheng, Y. 2011. Pressure Transient Characteristics of Hydraulically Fractured Horizontal Shale Gas Wells. Presented at the SPE Eastern Regional Meeting, Columbus, Ohio, 17–19 August. SPE-149311-MS. https://doi.org/10.2118/149311-MS.
Chu, L., Ye, P., Harmawan, I. S. et al. 2012. Characterizing and Simulating the Non-Stationariness and Non-Linearity in Unconventional Oil Reservoirs: Bakken Application. Presented at the SPE Canadian Unconventional Resources Conference, Calgary, 30 October–1 November. SPE-161137-MS. https://doi.org/10.2118/161137-MS.
Clarkson, C. R. 2013a. Production Data Analysis of Unconventional Gas Wells: Review of Theory and Best Practices. Int. J. Coal Geol. 109–110 (1 April): 101–146. https://doi.org/10.1016/j.coal.2013.01.002.
Clarkson, C. R. 2013b. Production Data Analysis of Unconventional Gas Wells: Work Flow. Int. J. Coal Geol. 109–110 (1 April): 147–157. https://doi.org/10.1016/j.coal.2012.11.016.
Clarkson, C. R. and Beierle, J. J. 2010. Integration of Microseismic and Other Post-Fracture Surveillance With Production Analysis: A Tight Gas Study. Presented at the SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, 23–25 February. SPE-131786-MS. https://doi.org/10.2118/131786-MS.
Clarkson, C. R. and Pedersen, P. K. 2010. Tight Oil Production Analysis: Adaptation of Existing Rate-Transient Analysis Techniques. Presented at the Canadian Unconventional Resources & International Petroleum Conference, Calgary, 19–21 October. SPE-137352-MS. https://doi.org/10.2118/137352-MS.
Clarkson, C. R and Williams-Kovacs, J. D. 2013. A New Method for Modeling Multi-Phase Flowback of Multi-Fractured Horizontal Tight Oil Wells to Determine Hydraulic Fracture Properties. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, 30 September–2 October. SPE-166214-MS. https://doi.org/10.2118/166214-MS.
El-Banbi, A. H. and Wattenbarger, R. A. 1998. Analysis of Linear Flow in Gas Well Production. Society of Petroleum Engineers. Presented at SPE Gas Technology Symposium, Calgary, 15–18 March. SPE-39972-MS. https://doi.org/10.2118/39972-MS.
Hashemi, A. and Gringarten, A. C. 2005. Comparison of Well Productivity Between Vertical, Horizontal, and Hydraulically Fractured Wells in Gas-Condensate Reservoirs. Presented at the SPE Europec/EAGE Annual Conference, Madrid, Spain, 13–16 June. SPE-94178-MS. https://doi.org/10.2118/94178-MS.
IHS. 2016. Harmony Manual, Trial Version. London: IHS.
Joo, H. and Ki, S. 2015. Rate Transient Analysis in Hydraulic Fractured Tight Gas Reservoir. Presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, Nusa Dua, Bali, Indonesia, 20–22 October. SPE-176489-MS. https://doi.org/10.2118/176489-MS.
Kurtoglu, B., Rasdi, F., Salman, A. et al. 2013. Evaluating Long Term Flow Regimes in Unconventional Oil Reservoirs With Diverse Completion Technology. Presented at the SPE Unconventional Resources Conference, Calgary, 5–7 November. SPE-167145-MS. https://doi.org/10.2118/167145-MS.
Lee, J., Rollins, J. B., and Spivey, J. P. 2003. Pressure Transient Testing, Vol. 9. Richardson, Texas: Textbook Series, Society of Petroleum Engineers.
Leung, J., Yue, M., and Dehghanpour, H. 2013. Integration of Numerical Simulations for Uncertainty Analysis of Transient Flow Responses in Heterogeneous Tight Reservoirs. Presented at the SPE Unconventional Resources Conference, Canada, Calgary, 5–7 November. SPE-167174-MS. https://doi.org/10.2118/167174-MS.
Lian, P., Cheng, L., Li, L. et al. 2011. The Variation Law of Storativity Ratio and Interporosity Transfer Coefficient in Fractured Reservoirs. Eng. Mech. 28 (9): 240–243.
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.
Luo, H. W., Li, H. T., Zhang, J. F. et al. 2017. Production Performance Analysis of Fractured Horizontal Well in Tight Oil Reservoir. J. Petrol. Explor. Prod. Technol. 8 (1): 229–247. https://doi.org/10.1007/s13202-017-0339-x.
Mattar, L. and Anderson, D. 2005. Dynamic Material Balance (Oil or 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.
Mishra, S. 2014. Exploring the Diagnostic Capability of RTA Type Curves. Presented at the SPE Annual Technical Conference and Exhibition, Amsterdam, 27–29 October. SPE-173481-MS. https://doi.org/10.2118/173481-STU.
Mohan, K., Scott, K. D., Monson, G. D. et al. 2013. A Systematic Approach to Understanding Well Performance in Unconventional Reservoirs: A Wolfcamp Case Study. Presented at the Unconventional Resources Technology Conference, Denver, 12–14 August. URTEC-1579514-MS. https://doi.org/10.1190/URTEC2013-051.
Ozkan, E., Brown, M. L., Raghavan, R. et al. 2011. Comparison of Fractured-Horizontal-Well Performance in Tight Sand and Shale Reservoirs. SPE Res Eval & Eng 14 (2): 248–259. SPE-121290-PA. https://doi.org/10.2118/121290-PA.
Pinillos, C. and Rong, Y. C. 2015. Integration of Pressure Transient Analysis in Reservoir Characterization: A Case Study. Presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, Nusa Dua, Bali, Indonesia, 20–22 October. SPE-176202-MS. https://doi.org/10.2118/176202-MS.
Poe, B. D., Vacca, H., Benjamin, A. et al. 2012. Production Decline Analysis of Horizontal Well Intersecting Multiple Transverse Vertical Hydraulic Fractures in Low-Permeability Shale Reservoirs. Presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 8–10 October. SPE-160149-MS. https://doi.org/10.2118/160149-MS.
Pour, F. N., Sayed, N. E., and Eddy, J. 2015. Performance Analysis of the Canadian Deep Basin Unconventional Wells. Presented at the SPE Unconventional Resources Conference, Calgary, 20–22 October. SPE-175977-MS. https://doi.org/10.2118/175977-MS.
Santacruz, C., Esquivel, R., Smith, J. et al. 2015. Integration of RTA Based Reservoir Surveillance and Analytical Flow Simulation to Forecast Production in the Haynesville Shale. Presented at the SPE Unconventional Resources Technology Conference, San Antonio, Texas, 20–22 July. URTEC-2153918-MS. https://doi.org/10.15530/URTEC-2015-2153918.
Song, B. and Ehlig-Economides, C. A. 2011. Rate-Normalized Pressure Analysis for Determination of Shale Gas Well Performance. Presented at the North American Unconventional Gas Conference and Exhibition, The Woodlands, Texas, 14–16 June. SPE-144031-MS. https://doi.org/10.2118/144031-MS.
Stalgorova, E. and Babadagli, T. 2012. Field-Scale Modeling of Tracer Injection in Naturally Fractured Reservoirs Using the Random-Walk Particle-Tracking Simulation. SPE J. 17 (2): 580–590. SPE-144547-PA. https://doi.org/10.2118/144547-PA.
Stalgorova, E. and Mattar, L. 2012. Practical Analytical Model to Simulate Production of Horizontal Wells with Branch Fractures. Presented at the SPE Canadian Unconventional Resources Conference, Calgary, 30 October–1 November. SPE-162515-MS. https://doi.org/10.2118/162515-MS.
Tang, Y. and Liang, B. 2015. Reservoir Surveillance Pilot Study for Midland Basin Tight Oil Spacing Optimization. Presented at the SPE Liquids-Rich Basins Conference, Midland, Texas, 2–3 September. SPE-175533-MS. https://doi.org/10.2118/175533-MS.
Wang, J. C. 2015. Volumetric Source Model of Binary System and Its Application. Master’s thesis, Southwest Petroleum University, Chengdu, China (June 2015).
Warren, J. E. and Root, P. J. 1963.The Behavior of Naturally Fractured Reservoirs. SPE J. 3 (3): 245–255. SPE-426-PA. https://doi.org/10.2118/426-PA.
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 SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, Denver, 5–8 April. SPE-39931-MS. https://doi.org/10.2118/39931-MS.
Xie, W., Li, X., Zhang, L. et al. 2015. Production Decline Analysis for Two-Phase Flow in Multifractured Horizontal Well in Shale Gas Reservoirs. Journal of Chemistry Vol. 2015, Article ID 212103, 10 pages. https://doi.org/10.1155/2015/212103.
Ye, P., Chu, L., Harmawan, I. S. et al. 2013. Beyond Linear Analysis in an Unconventional Oil Reservoir. Presented at the Unconventional Resources Conference-USA, The Woodlands, Texas, 10–12 April. SPE-164543-MS. https://doi.org/10.2118/164543-MS.
Zhou, W., Banerjee, R., Poe, B. D. et al. 2012. Semi-Analytical Production Simulation of Complex Hydraulic Fracture Networks. Presented at the SPE International Production and Operations Conference and Exhibition, Doha, 14–16 May. SPE-157367-MS. https://doi.org/10.2118/157367-MS.
Zhou, W., Gupta, S., Banerjee, R. et al. 2013. Production Forecasting and Analysis for Unconventional Resources. Presented at the International Petroleum Technology Conference, Beijing, 26–28 March 2013. SPE-17176-MS. https://doi.org/10.2523/IPTC-17176-MS.