Abstract
This paper provides important findings of research work that was undertaken on stress sensitivity of gas reservoirs which arises from decrease in pressure during production process. Junggar basin of China was selected as study area for the work undertaken. The basin has a typical fractured reservoir of which the stress sensitivity has been unclear for a long period. In order to study the stress sensitivity during production process, experimental methods for measuring stress sensitivity which simulates the depletive recovery process as well as permeability for the cores dealt with were designed. The experiments were carried out on 31 volcanic rock samples taken from 6 wells in the area of study. Stress sensitivity for results obtained during the depletive recovery for cores from un-fractured volcanic reservoirs was found to relatively weaker while stress sensitivity for cores obtained from fractured volcanic reservoirs was stronger. Terzaghi (1943) concept on effective stress and Li (1999) theory for body effective stress were adopted in this study.
Similar content being viewed by others
References
Archer, R. (2008) Impact of Stress Sensitive Permeability on Production Data Analysis. SPE Unconventional Reservoirs Conference, Keystone, Colorado, U.S.A.
Jaeger, J. and Cook, N. (1979) Fundamentals of Rock Mechanics (3th Edition). Chapman and Hall Press, London, pp.157–159.
Jelmert, T. and Selseng, H. (1998) Permeability Function Describe Core Permeability in Stress-sensitive Rocks. Oil & Gas Jour., v.12, pp.50–55.
Li, C. L., Kong, X. Y., Xu, X.Z. and LI, P. (1999) Double Effective Stress of Porous Media. Ziran Zazhi, v.21, pp.288–291(in Chinese with English abstract).
Lorenz, J. and Natl, S. (1999) Stress-Sensitive Reservoirs. Jour. Petrol. Tech., v.51, pp.61–63.
Ostensen, R. (1986) Title the Effect of Stress-Dependent Permeability on Gas Production and Well Testing. SPE Formation Evaluation, no.1, pp.227–235.
Terzaghi, K. (1943) Theoretical Soil Mechanics. John Wiley and Sons Press, New York, pp.37–42.
Tiab, D. and Donaldson, E. (2004) Effect of Stress on Reservoir Rock Properties. Petrophysics, v.2, pp.554–670.
Zhu, H., Hu, Y., Han, Y.X., Shao, R. and Yang, G. (2007) Study on Stress Sensitivity of Deep Volcanic Reservoirs in Daqing. Natural Gas Geoscience, v.18, pp.197–200(in Chinese with English abstract).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Z., Zhao, J., Kang, P. et al. An experimental study on simulation of stress sensitivity to production of volcanic gas from its reservoir. J Geol Soc India 86, 475–481 (2015). https://doi.org/10.1007/s12594-015-0335-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12594-015-0335-z