Ultra Low Permeability Reservoir Characteristics and Origin Analysis

Abstract:

As the result of its special structural feature and depositional setting, Ordos Basin formed large scale low-permeability reservoir. According to scanning electron microscope, casting sheet image, core observation, physical property analysis and core analysis testing, this paper summarized and analyzed ultra low permeability reservoir microscopic feature of Ordos Basin Baibao area Chang63. Reservoir microscopic feature is controlled by deposition and diagenesis. Deposition decided reservoir lithology, interstitial content and sizes of primary pores. Compaction and cementation of diagenesis destroyed primary pores, but denudation provided high range secondary pores, which improved storage space of the research area.

• Periodical: Advanced Materials Research (Volumes 361-363)
• Pages: 51-54
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.361-363.51
• Online since: October 2011
• Authors: Hong Yan Yu, Hong Qi Li
• Keywords: Baibao Area, Diagenesis, Reservoir Characteristics, Sedimentation, Ultra-Permeability

References

[1] ZENG Da-qian, LI Shuzhen. Types and characteristics of low permeability sandstone reservoirs in China[J]. Acta Petrolei Sinica, 1994, 15(1):38-46.

[2] FENG Juan-ping, LI Wen-hou, OYANG Zheng-jian, et al. Major factors controlling reservoir quality of the upper Triassic Chang 2 sandstones in the Qinghuabian Oilfield, northern Shanxi[J]. Journal of Jilin University: Earth Science Edition, 2008, 38(3):17-23.

[3] FU Guo-min, LI Xin, LIANG Zhi-lu, et al. Diagenesis of Chang 6 formation sandstones and its effect on reservoir property in Sanyan regions in Ordos Basin[J]. Journal of Xi'an University of Science and Technology: 2007, 27(3):377-381.

[4] YANG Xiao-ping, ZHAO Wen-zhi, ZOU Cai-neng, et al. Origin of low-permeability reservoir and distribution of favorable reservoir[J]. Acta Petrolei Sinica, 2007, 28(4):57-61.

[5] SONG Zi-qi, WAVG Jing, LU Xiang-wei, et al. An quantitative assessment method of the diagenetic reservoir facies in extra-low permeability oil-gas reservoir[J]. Petroleum Geology and Recovery Efficiency, 2006, 13(2):21-23.

[6] HAO Shi-yan, LI Dan. Oil-geology characteristics of Triassic system Yanchang Formation Chang-6 reservoir in Yizheng Area of Zhidan oilfield[J]. Northwestern Geology, 2005, 38（4）：94-110.

[7] SONG Kai, LU Jianwen, DU Jinliang, et al. Source direction analysis and delta depositional systems of Yanchang Formation of the upper Triassic in the central Ordos Basin[J]. Journal of Palaeogeography, 2002, 4(3):59-65.

[8] ZHANG Jin-liang, LIN Hui, SI Xue-qiang, et al. Diagenesis of Chang6 reservoir inWang yao area of Ansai oilfield[J]. Periodical of Ocean University of China, 2004, 34(4):625-635.

[9] Salem A M, Morad S, Mato L F. et al. Diagenesis and reservoir quality evolution of fluvial sandstones during progressive burial and uplift:evidence from the Upper Jurassic Boipeba Member, Reconcavo Basin, Northeast Brazil[J]. AAPG Bulletin, 2000, 84(7):1015-1040.

DOI: 10.1306/a9673b9e-1738-11d7-8645000102c1865d

[10] ALAA M, SALEM S, MORAD S, et al. Diagenesis and reservoir quality evolution of fluvial sandstones during progressive burial and uplift: evidence from the Upper Jurassic Boipeba Member, Reconcavo Basin, Northeastern Brazil[J]. AAPG Bulletin, 2000, 84(7):1015-1040.

DOI: 10.1306/a9673b9e-1738-11d7-8645000102c1865d

[11] GAO Jian-bo, PANG Xiong-qi, WANG Zhi-xin, et al. Characteristics and master control factors of petroliferous properties of low permeability clastic reservoirs of Yanchang formation in the upper Triassic of Jiyuan area in Ordos basin[J]. Journal of China University of Petroleum (Natural Science), 2007, 31(1):5-12.