Analyzing Unexpected Sanding Issues in the High-Pressure/High-Temperature, Tight-Sandstone Keshen Gas Reservoir, Western China
- Xiangtong Yang (PetroChina) | Kaibin Qiu (Schlumberger) | Yang Zhang (PetroChina) | Yongjie Huang (Schlumberger) | Wentong Fan (PetroChina) | Yuanwei Pan (Schlumberger) | Guowei Xu (PetroChina) | ChengGang Xian (Schlumberger)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- September 2018
- Document Type
- Journal Paper
- 192 - 208
- 2018.Society of Petroleum Engineers
- HPHT, Sanding, Hard Sandstone, Tight Gas
- 2 in the last 30 days
- 174 since 2007
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Keshen is a high-pressure/high-temperature (HP/HT) tight-sandstone gas reservoir with reservoir pressure greater than 110 MPa and temperature more than 175°C. The sandstone is hard, with unconfined compressive strength (UCS) greater than 100 MPa. Given the HP/HT nature and natural-fracture systems in the reservoir, with aid of stimulation, many wells produced at a high rate, with the mean value exceeding 500 000 m3/d. In the last few years, many production wells in this reservoir experienced severe sanding issues that contradicted the conventional understanding that sanding would not occur in such hard rock. The sanding wells exhibited large fluctuations of production rate and wellhead pressure, erosion of chokes and nozzles, and eventually major or even complete loss of production. A solution to address the sanding issues was urgently needed because they had caused a major decline in production and resulted in significant economic loss.
Because of the unconventional nature of the sanding issues, the typical sanding-prediction methods dependent on evaluating rock failure were not adequate to reveal the underlying sanding mechanism and develop a viable operational solution. To this end, a new work flow was formulated and applied to this study. The work flow started with detailed data mining on the large amount of drilling, completion, stimulation, and production data of more than 51 wells from this reservoir to investigate possible relationships of drilling practices, completion options, and production schedules to the occurrence and severity of sanding issues. The analysis revealed that downhole flow velocity and production drawdown were the two major controlling factors in the occurrence of sand production. Further geomechanics simulation and particle-migration simulation with a multiphase dynamic flow simulator confirmed that the production drawdown would cause failure of the rock near the wellbore and the gas flow could transport the sand debris to the wellbore and lift it up to the surface. In addition, the fluctuation of production rate was caused by blockage because of the accumulation of sand particles in the wells and production tubing that were flushed out after downhole-pressure buildup.
Using the analysis, the threshold of flow velocity and the threshold of drawdown were identified, and these thresholds can be used in the reservoir management to effectively address the sanding issues.
The experience in Keshen shows that sanding is possible in HP/HT high-productivity sandstone gas reservoirs, even in an extremely hard formation, which overturns some prior conceptions on sanding. The information shared from this paper could attract the attention of those operating similar HP/HT tight-sandstone reservoirs around the world.
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Ai, C., Zhang, Y., Zhao, W. et al. 2012. Study on Proppant Backflow During Flowback of Fracturing Fluid (in Chinese). Oil Drill. Prod. Technol. 34 (2): 70–73.
Antheunis, D., Vriezen, P. B., Schipper, B. A. et al. 1976. Perforation Collapse: Failure of Perforated Friable Sandstones. Presented at the SPE European Spring Meeting, Amsterdam, 8–9 April. SPE-5750-MS. https://doi.org/10.2118/5750-MS.
Azadbakht, S., Jafarpour, M., Rahmati, H. et al. 2012. A Numerical Model for Predicting the Rate of Sand Production in Injector Wells. Presented at the SPE Deepwater Drilling and Completions Conference, Galveston, Texas, 20–21 June. SPE-156394-MS. https://doi.org/10.2118/156394-MS.
Bendiksen, K. H., Maines, D., Moe, R. et al. 1991. The Dynamic Two-Fluid Model OLGA: Theory and Application. SPE Res Eng 6 (2): 171–180. SPE-19451-PA. https://doi.org/10.2118/19451-PA.
Bourgoyne, A. T. Jr., Millheim, K. K., Chenevert, M. E. et al. 1991. Applied Drilling Engineering, Vol. 2. Richardson, Texas: SPE Textbook Series, Society of Petroleum Engineers.
Bratli, R. K. and Risnes, R. 1981. Stability and Failure of Sand Arches. SPE J. 21 (2): 236–248. SPE-8427-PA. https://doi.org/10.2118/8427-PA.
Chevrot, T. C., Valentine, E., Cornally, D. et al. 2006. Sand Management of Topside Facilities and Interfield Gas Condensate Lines of a HP/HT Field. Presented at CORROSION 2006, San Diego, California, 12–16 March.
Coates, G. R. and Denoo, S. A. 1981. Mechanical Properties Program Using Borehole Analysis and Mohr’s Circle. Presented at SWPLA 22th Annual Logging Symposium, Mexico City, 23–26 June. SPWLA-1981-DD.
Dake, L. P. 1978. Fundamentals of Reservoir Engineering. Amsterdam: Elsevier.
Feng, S. and Zhang, Z. 2013. Accumulation Process and Characteristics of Overpressured Large Gas Field in Keshen Belt of Kelasu Tectonic Zone. J. Hefei Univ. Technol. 36 (10): 1242–1248. https://doi.org/10.3969/j.issn.1003-5060.2013.10.019.
Hall, C. D. Jr. and Harrisberger, W. H. 1970. Stability of Sand Arches: A Key to Sand Control. J Pet Technol 22 (7): 820–829. SPE-2399-PA. https://doi.org/10.2118/2399-PA.
Harvey, J., Grove, B., and Zhan, L. 2012. Stressed Rock Penetration Depth Correlation. Presented at SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, 15–17 February. SPE-151846-MS. https://doi.org/10.2118/151846-MS.
Jiang, T., Liu, H., Yang, X. et al. 2017. A Clean and Efficient Development Mode Boosts Community Development and Environment Protection: Development of Keshen Gas Field, Western China. Presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, Jakarta, 17–19 October. SPE-186966-MS. https://doi.org/10.2118/186966-MS.
Kooijman, A. P., van den Elzen, M. G. A., and Veeken, C. A. M. 1991. Hollow Cylinder Collapse: Measurement of Deformation and Failure in an X-Ray CT Scanner and Observation of Size Effect. Presented at the 32nd US Symposium on Rock Mechanics, Norman, Oklahoma, 10–12 July. ARMA-91-657.
McPhee, C. A. and Enzendorfer, C. K. 2004. Sand Management Solutions for High Rate Gas Wells, Sawan Field, Pakistan. Presented at the SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, 18–20 February. SPE-86535-MS. https://doi.org/10.2118/86535-MS.
Morita, N. 1994. Field and Laboratory Verification of Sand-Production Prediction Models. SPE Drill & Compl 9 (4): 227–235. SPE-27341-PA. https://doi.org/10.2118/27341-PA.
Morita, N., Whitfill, D. L., Massie, I. et al. 1989a. Realistic Sand-Production Prediction: Numerical Approach. SPE Prod Eng 4 (1): 15–24. SPE-16989-PA. https://doi.org/10.2118/16989-PA.
Morita, N., Whitfill, D. L., Fedde, O. P. et al. 1989b. Parametric Study of Sand-Production Prediction: Analytical Approach. SPE Prod Eng 4 (1): 25–33. SPE-16990-PA. https://doi.org/10.2118/16990-PA.
Morita, N. and Fuh, G. F. 1998. Prediction of Sand Problems of a Horizontal Well From Sand Production Histories of Perforated Cased Wells. Presented at SPE Annual Technical Conference and Exhibition, New Orleans, 27–30 September. SPE-48975-MS. https://doi.org/10.2118/48975-MS.
Nouri, A., Vaziri, H. H., Belhaj, H. A. et al. 2006. Sand-Production Prediction: A New Set of Criteria for Modeling Based on Large-Scale Transient Experiments and Numerical Investigation. SPE J. 11 (2): 227–237. SPE-90273-PA. https://doi.org/10.2118/90273-PA.
Nouri, A., Vaziri, H., Belhaj, H. et al. 2007. Comprehensive Transient Modeling of Sand Production in Horizontal Wellbores. SPE J. 12 (4): 468–474. SPE-84500-PA. https://doi.org/10.2118/84500-PA.
Qiu, K., Marsden, J. R., Alexander, J. et al. 2006. Practical Approach to Achieve Accuracy in Sanding Prediction. Presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, Adelaide, Australia, 11–13 September. SPE-100944-MS. https://doi.org/10.2118/100944-MS.
Qiu, K., Marsden, J. R., Solovyov, Y. et al. 2005. Downscaling Geomechanics Data for Thin-Beds Using Petrophysical Techniques. Presented at the SPE Middle East Oil and Gas Show and Conference, Bahrain, 12–15 March. SPE-93605-MS. https://doi.org/10.2118/93605-MS.
Risnes, R., Bratli, R. K., and Horsrud, P. 1982. Sand Arching—A Case Study. Presented at the European Petroleum Conference, London, 25–28 October. SPE-12948-MS. https://doi.org/10.2118/12948-MS.
Sanfilippo, F., Ripa, G., Brignoli, M. et al. 1995. Economical Management of Sand Production by a Methodology Validated on an Extensive Database of Field Data. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, 22–25 October. SPE-30472-MS. https://doi.org/10.2118/30472-MS.
Schlumberger. 2016. VISAGE Finite-Element Geomechanics Simulator, https://www.software.slb.com/products/visage (accessed 21 November 2017).
Stein, N. and Hilchie, D. W. 1972. Estimating the Maximum Production Rate Possible From Friable Sandstones Without Using Sand Control. J Pet Technol 24 (9): 1157–1160. SPE-3499-PA. https://doi.org/10.2118/3499-PA.
Tiffin, D. L., Stein, M. H., and Wang, X. 2003. Drawdown Guidelines for Sand Control Completions. Presented at the SPE Annual Technical Conference and Exhibition, Denver, 5–8 October. SPE-84495-MS. https://doi.org/10.2118/84495-MS.
Tixier, M. P., Loveless, G. W., and Anderson, R.A. 1975. Estimation of Formation Strength From the Mechanical Properties Log. J Pet Technol 27 (3): 283–293. SPE-4532-PA. https://doi.org/10.2118/4532-PA.
Tronvoll, J., Papamichos, E., and Kessler, N. 1993. Perforation Cavity Stability: Investigation of Failure Mechanism. Oral presentation given at the International Symposium on Hard Soils and Soft Rocks, Athens, Greece, 20–23 September.
van den Hoek, P. J. and Geilkman, M. B. 2003. Prediction of Sand Production Rate in Oil and Gas Reservoirs. Presented at the SPE Annual Technical Conference and Exhibition, Denver, 5–8 October. SPE-84496-MS. https://doi.org/10.2118/84496-MS.
Veeken, C. A. M., Davies, D. R., Kenter, C. J. et al. 1991. Sand Production Prediction Review: Developing an Integrated Approach. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, 6–9 October. SPE-22792-MS. https://doi.org/10.2118/22792-MS.
Vriezen, P. D., Spijker, A., and van der Vlis, A. C. 1975. Erosion of Perforation Tunnels in Gas Wells. Presented at the Fall Meeting of the Society of Petroleum Engineers of AIME, Dallas, 28 September–1 October 1. SPE-5661-MS. https://doi.org/10.2118/5661-MS.
Wang, H., Cardiff, P., and Sharma, M. M. 2016. A 3D Poro-Elasto-Plastic Model for Sand Production Around Open-Hole and Cased & Perforated Wellbores. Presented at the 50th US Rock Mechanics/Geomechanics Symposium, Houston, 26–29 June. ARMA-2016-251.
Wang, Z. 2014. Formation Mechanism and Enrichment Regularities of Kelasu Subsalt Deep Large Gas Field in Kuqa Depression, Tarim Basin (in Chinese). Nat. Gas Geosci. 25 (2) 153–166. https://doi.org/10.11764/j.issn.1672-1926.2014.02.0153.
Weissenburger, K. W., Morita, N., Martin, A. J. et al. 1987. The Engineering Approach to Sand Production Prediction. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, 27–30 September. SPE-16892-MS. https://doi.org/10.2118/16892-MS.
Willson, S. M., Moschovidis, Z. A., Cameron, J. R. et al. 2002. New Model for Predicting the Rate of Sand Production. Presented at the SPE/ISRM Rock Mechanics Conference, Irving, Texas, 20–23 October. SPE-78168-MS. https://doi.org/10.2118/78168-MS.
Yang, X., Huang, Y., Liu, J. et al. 2016. Understanding Production Mechanism to Optimise Well Stimulation by Production Analysis in Keshen HPHT and Natural Fractured Tight Gas Reservoir. Presented at the SPE Asia Pacific Hydraulic Fracturing Conference, Beijing, 24–26 August. SPE-181817-MS. https://doi.org/10.2118/181817-MS.
Zhang, X., Huang, Y., Yang, X. et al. 2015a. Natural Productivity Analysis and Well Stimulation Strategy Optimization for the Naturally Fractured Keshen Field. Presented at the SPE Oil & Gas India Conference and Exhibition, Mumbai, 24–26 November. SPE-178067-MS. https://doi.org/10.2118/178067-MS.
Zhang, H., Qiu, K., Fuller, J. et al. 2015b. Geomechanical Evaluation Enabled Successful Stimulation of a High-Pressure/High-Temperature Tight Gas Reservoir in Western China. SPE Drill & Compl 33 (4): 274–294. SPE-178438-PA. https://doi.org/10.2118/178438-PA.