On High Pressure Squeeze Pack Numerical Simulation of Unconsolidated Sandstone Based on Discrete Element

Abstract:

Sand inflow is one of the problems in unconsolidated sandstone oil reservoir recovery. The most frequently applied sandcontrol method is high-pressure gravel squeeze packing sand control technology. But incorrect knowledge of stratum shapes under high-pressure squeeze packing leads to unreasonable technology and implement parameters. This thesis, based on the discrete element theory and by means of two-dimension grain flow simulation software PFC2D, considers three oil wells with unconsolidated sandstone in terms of their cementing strengths . The simulation result shows that strata with diverse cementing strengths vary remarkably when high-pressure squeeze pack is asserted. Established calculation pattern might lead to sizable deviation.

• Periodical: Applied Mechanics and Materials (Volumes 34-35)
• Pages: 1666-1670
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.34-35.1666
• Online since: October 2010
• Authors: Wei Zhang Wang, Xiang Zhen Yan
• Keywords: Discrete Element Theory, High Pressuresqueeze Pack, Numerical Simulation, Unconsolidated Sandstone

References

[1] Yu yang: submitted to Journal of Petroleum Geology and Engineering(2006).

[2] Zhou Jian , Liao Xiong - hua and ChiYong: submitted to Journal of Tongji University(2002).

[3] Liu Wen-bai and Zhou jian: submitted to Chinese Journal of Geotechnical Engineering(2004).

[4] Itasca Consulting Group, Inc. PFC2D particle flow code in 2 Dimensions: theory and background. Minneapolis, Minnesota, (1999).

[5] Zhu Huan-chun: submitted to Chinese Journal of Rock Mechanics and Engineering, (2006).