Browse > Article
http://dx.doi.org/10.7842/kigas.2016.20.1.13

Technical Consideration for Production Data Analysis with Transient Flow Data on Shale Gas Well  

Han, Dong-kwon (Dept. of Energy and Mineral Resources Engineering, Dong-A University)
Kwon, Sun-il (Dept. of Energy and Mineral Resources Engineering, Dong-A University)
Publication Information
Journal of the Korean Institute of Gas / v.20, no.1, 2016 , pp. 13-22 More about this Journal
Abstract
This paper presents development of an appropriate procedure and flow chart to analyze shale gas production data obtained from a multi-fractured horizontal well according to flow characteristics in order to calculate an estimated ultimate recovery. Also, the technical considerations were proposed when a rate transient analysis was performed with field production data occurred to only $1^{st}$ transient flow. If production data show the $1^{st}$ transient flow from log-log and square root time plot analysis, production forecasting must be performed by applying different method as before and after of the end of $1^{st}$ linear flow. It is estimated by an area of stimulated reservoir volume which can be calculated from analysis results of micro-seismic data. If there are no bottomhole pressure data or micro-seismic data, an empirical decline curve method can be used to forecast production performance. If production period is relatively short, an accuracy of production data analysis could be improved by analyzing except the early production data, if it is necessary, after evaluating appropriation with near well data. Also, because over- or under-estimation for stimulated reservoir volume could take place according to analysis method or analyzer's own mind, it is necessary to recalculate it with fracture modeling, reservoir simulation and rate transient analysis, if it is necessary, after adequacy evaluation for fracture stage, injection volume of fracture fluid and productivity of producers.
Keywords
shale gas well; production data analysis; 1st transient flow; stimulated reservoir volume; micro-seismic data;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kupchnenko, C. L., Gault, B. W., and Mattar, L., "Tight Gas Production Performance Using Decline Curves", presented at the CIPC/SPE Gas Technology Symposium Joint Conference, 16-19 June, Calgary, Alberta, (2009)
2 Arps, J. J., "Analysis of Decline Curves", A.I. M.E, 228-247, (1945)
3 Shin, C. H., Lee, S. M., Kwon, S. I., Park, D. J., and Lee, Y. S., "A Classification and a Survey on the Core Technology for Shale Gas Development", The Journal of the Korean Society of Mineral and Energy Resources Engineering, 49(3), 395-410, (2012)
4 Clarkson, C. R., "Production Data Analysis of Unconventional Gas Wells: Workflow", International journal of Coal Geology, 109(110), 147-157, (2013)
5 Lee, S. M., Jung, J. H., Shin, C. H., and Kwon, S. I., "Study on Production Performance of Shale Gas Reservoir using Production Data Analysis", The journal of the Korean Institute of Gas, 17(4), 58-69, (2013)   DOI
6 Anderson, D. M., Nobakht, M., Mohadam, S., and Mattar, L., "Analysis of Production Data from Fractured Shale Gas Wells", paper SPE 131787 presented at SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania,(2010)
7 Wattenbarger, R. A., El-Bandi, A. H., Vilegas, M. E., and Maggard, J. B., "Production Analysis of Linear Flow into Fractured Tight Gas Well", paper SPE 39931 presented at SPE Rocky Mountain Regional/Low Permeability Reservoirs Symposium and Exhibition, Denver, Colorado, (1998)
8 Ilk, D., Rushing, J. A., and Perego, A. D., "Exponential vs. Hyperbolic Decline in Tight Gas Sands - Understanding the Origin and Implications for Reserve Estimates Using Arps Decline Curves", presented at the SPE Annual Technical Conference and Exhibition, held in Dever, Colorado, (2008)
9 Valko, P. P., and Lee, W. J., "A Better Way to Forecast Production from Unconventional Gas Wells", Paper 134231, presented at the SPE Annual Technical Conference and Exhibition held in Florence, Italy, (2010)
10 Duong, A., "An Unconventional Rate Decline Approach for Tight and Fracture-Dominated Gas Wells", Paper CSUG/SPE 137748 presented at the Canadian Unconventional Resources and International Petroleum Conference, Calgary, Alberta, Canada,(2010)
11 Yu, S., "Best Practice of Using Empirical Methods for Production Forecast and EUR Estimation in Tight/Shale Gas Reservoirs", Paper 167118, presented at the SPE Unconventional Resources Conference-Canada held in Calgary, Canada, (2013)
12 Nagel, N., Garcia, X., Nagel, M., and Lee, B., "Understanding SRV : A Numerical Investigation of Wet vs Dry Microseismicity during Hydraulic Fracturing", paper SPE 159791 presented at Annual Technical Conference and Exhibition, held in San Antonio, USA,(2012)
13 Suliman, B., Meek, R., Hull, R., Bello, R., Portis, D., and Richmond, P., "Variable Stimulated Reservoir Volume(SRV) Simulation : Eagle Ford Shale Case Study", paper SPE 168832 presented at Unconventional Resources Technology Conference, held in Denver, USA,(2013)