Study on Flow Units and Residual Oil Distribution of Lower S₂ Formation in Wen-X Fault Block, Wenliu Oilfield

Abstract:

Flow units are divided into E,G and P types for the Lower S₂ reservoir of Wen-X fault block in the Wenliu Oilfield, which are identificated based on six parameters including porosity, permeability, sandstone thickness, effective thickness, formation conductivity and flow index. A 3-D model for the flow units is established by sequential gaussian stochastic simulation approach. It is believed that type- E flow units are well exploited, with the distribution of the remaining oils related to fault as a barrier；type-G flow units are less exploited, with enrichment of remaining oil, due to the influence of interlayer or lateral heterogeneity；and type-P flow units are difficult to be exploited because of the poor percolation and a lower reserves abundance

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 217-220
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.217
• Online since: May 2012
• Authors: Min An Tang, Bao Ling Sun, Huan Yan Xu
• Keywords: Flow Units, Residual Oil, Stochastic Simulation, Wenliu Oilfield

References

[1] Chen Yefei,Peng Shimi,Song Guiru.Inter-well prediction of flow units and remaining oil distribution[J]．Acta Petrolei Sinica, 2003，24(3)：74-77．

[2] Yi Taiju,Zhang Changmim,Zhang Shangfeng, et al. Application of flow units in reservoir evaluation and residual oil prediction[J] . Science in China Series D- Geoscience, 2008，38（supplⅡ）:110-116.

[3] LiZhenquan,Hou Jian,Cao Xulong,et al. Micro-scopic simulation for influence of microscopic reservoir parameters on remaining oil distribution[J].Acta Petrolei Sinica,2005,26(11):69-73.

[4] Peng Shi-mi,Yin Zhijun,Chang Xuejun, et al. A new quantitative method to study flow unit of non-marine reservoir[J].PED., 2001，28(5)：68-70．

[5] Zang Jichun, Peng Shimi, Mu Lihua, et al.Four-dimensional dynamic simulation models for flow unit[J].Acta Petrolei Sinica,2005,26(1):69-73.

[6] Hearn C L，Ebanks W J Jr，Tye R S，et al. Geologicalfactors influencing reservoir performance of the Har-tzog Dra field，Wyoming[J]．JPT，1984，36(9)：1335-1344．

DOI: 10.2118/12016-pa

[7] Ebanks W J. Flow unit concept integrated approach to reservoir description for engineering projects[J]. AAPG Annual Meeting, AAPG Bulletin, 1987, 71(5):551-552.

[8] Wan Binqian,Ma Yuming,Guo Xiaokun, et al. Advances in study on flow unit[J]. PED. 2008，31（1）：5-8

[9] Lei Qihong, Song Ziqi, Tan Chengqian. Tochastic Simulation In Reservoir Description[J].Journal Of Xi'an Petroleum Institute,2000,15(1):13-16.