VOLCANIC ALTERATION OF NANPU-5 STRUCTURE IN BOHAI BAY BASIN: Effects on the Physical Property of Reservoir and Lower Limits of Physical Property

ZHANG Li-hua; PAN Bao-zhi; SHAN Gang-yi; LIN Fa-wu; LIU De-fang

doi:10.13686/j.cnki.dzyzy.2020.04.007

2020 Vol. 29, No. 4

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Article navigation > Geology and Resources > 2020 > 29(4): 351-356

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ZHANG Li-hua, PAN Bao-zhi, SHAN Gang-yi, LIN Fa-wu, LIU De-fang. VOLCANIC ALTERATION OF NANPU-5 STRUCTURE IN BOHAI BAY BASIN: Effects on the Physical Property of Reservoir and Lower Limits of Physical Property[J]. Geology and Resources, 2020, 29(4): 351-356. doi: 10.13686/j.cnki.dzyzy.2020.04.007

Citation:

ZHANG Li-hua, PAN Bao-zhi, SHAN Gang-yi, LIN Fa-wu, LIU De-fang. VOLCANIC ALTERATION OF NANPU-5 STRUCTURE IN BOHAI BAY BASIN: Effects on the Physical Property of Reservoir and Lower Limits of Physical Property[J]. Geology and Resources, 2020, 29(4): 351-356. doi: 10.13686/j.cnki.dzyzy.2020.04.007

VOLCANIC ALTERATION OF NANPU-5 STRUCTURE IN BOHAI BAY BASIN: Effects on the Physical Property of Reservoir and Lower Limits of Physical Property

1.
School of Earth Exploration Science and Technology, Jilin University, Changchun 130026, China
2.
Exploration and Development Institute of Jidong Oilfield Co., Ltd., Tangshan 063000, Hebei Province, China

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Corresponding author: SHAN Gang-yi, shangangyi@jlu.edu.cn

Received Date: 08 October 2019

Revised Date: 12 April 2020

Publish Date: 28 August 2020

Abstract

Abstract

Study of thin sections and scanning electron microscope(SEM) data confirms that the volcanic reservoir in Nanpu-5 structure has been altered with different degrees. Based on the alteration mechanism of volcanic rocks, the effects of volcanic alteration on physical property of reservoir are analyzed. The methods of empirical statistics, porosity-permeability intersection, mercury injection parameters, stress sensitivity and minimum oil throat radius are applied to determine the lower limits of physical property, which are defined by porosity of 2.5% and permeability of 0.04×10^-3 μm². The determination of lower limits is conducive to the division of reservoir and non-reservoir, statistics of effective thickness and calculation of reserves. The study provides reference for the determination of physical property lower limits of altered volcanic rocks in other areas.
- Nanpu-5 structure /
- volcanic rock /
- alteration /
- lower limit of physical property /
- porosity /
- permeability /
- Bohai Bay Basin

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References

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