Abstract
Tight sandstone gas reservoirs have poor physical properties and percolation capacity, and it takes a long time for gas well pressure change to reach the seepage boundary, which results in large errors in gas well control dynamic reserves calculation and gas production capacity evaluation. Therefore, it is especially important to identify whether the gas well pressure change of tight sandstone reaches the seepage boundary and its exact time. In this paper, a typical single well in the Sulige gas field is taken as the research object. Based on the Blasingame theory for advanced production decline analysis, considering the variable production and pressure of gas well, the material balance pseudo-time is introduced. Through the dimensionless formula conversion, the calculation formula of the time when the pressure change reaches the seepage boundary is derived, and the time curves of different types of gas wells are established, as well as the main control factors affecting the time to reach the boundary of gas wells are analyzed. The result shows that the time to reach the seepage boundary in different types of gas wells in the Sulige gas field is different, which is 200–257 days in Type I gas wells, 446–497 days in Type II and 685–796 days in Type III. The time for gas well to reach the boundary is related to the reservoir porosity, permeability, comprehensive compression coefficient, single well control area, and fluid viscosity. Among which the change of the control area and permeability have a greater impact. The research result lays the foundation for accurately and reasonably evaluating the dynamic reserves and productivity of gas wells in tight sandstone gas reservoirs.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Wang, S., An, W., Chen, P., et al.: Characteristic and development techniques of sulige tight gas pool. Nat. Gas Geosci. 24(1), 138–145 (2013)
Yu, S., Liu, Y., Wu, L., et al.: technical difficulties and proposed countermeasures in drilling horizontal wells in low-permeability reservoirs: a case study from the Ordos Basin. Nat. Gas. Ind. 33(1), 65–69 (2013)
Liang, Y., Wang, D., Li, T., et al.: Study on variation characteristic of arps decline exponent of tight reservoir gas well. J. Xi’an Shiyou Univ. (Nat. Sci. Ed.) 33(2), 77–81 (2018)
Yang, Y., Zhou, W., Wang, D.: Study on dynamic analysis method and production rule of tight gas reservoirs. J. Chengdu Univ. Technol. (Sci. Technol. Ed.) 45(4), 507–511 (2018)
Yang, B., He, D., Wang, L.: Judgement of the time when the pressure front of a gas field reaches the seepage boundary in a gas field. Oil Gas Field Dev. 34(2), 40–43 (2016)
Sun, H., Zhu, Z., Shi, Y., et al.: A note on the blasingame type curve plotting of production decline analysis. Nat. Gas. Ind. 35(10), 71–75 (2015)
Sun, H.: Advanced Production Decline Analysis and Application. Petroleum Industry Press, Beijing (2013)
Fraim, M.L.: Gas reservoir decline- curve analysis using type curves with real gas pseudopressure and normalized time. SPE Formation Eval. 2(4), 671–682 (1987)
Chen, Y., Fu, L.: Establishment, comparison and application of power function decline model. Pet. Geol. Recovery Effi. 26(6), 87–91 (2019)
He, G.: Reservoir Physics. Petroleum Industry Press, Beijing (1994)
Acknowledgments
The project is supported by National Natural Science Foundation (Number 2016E-0509).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Huo, Mh., Lan, Yf., Yu, Zh., Yue, J. (2021). A Calculation Method for the Time of Pressure Change of Tight Sandstone Gas Well to Reach Seepage Boundary. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2020. IFEDC 2020. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0761-5_62
Download citation
DOI: https://doi.org/10.1007/978-981-16-0761-5_62
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-0762-2
Online ISBN: 978-981-16-0761-5
eBook Packages: EngineeringEngineering (R0)