Prediction of Apparent Equivalent Thickness Using the Spontaneous Potential Method and Its Application to Oilfield Development

Junheng Wang; Zhuping Pan; Shuwen Sun; Lei Guo

Jun 2007

Article Contents

Journal of Earth Science > 2007 > 18(3): 269-279.

Junheng Wang, Zhuping Pan, Shuwen Sun, Lei Guo. Prediction of Apparent Equivalent Thickness Using the Spontaneous Potential Method and Its Application to Oilfield Development. Journal of Earth Science, 2007, 18(3): 269-279.

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Prediction of Apparent Equivalent Thickness Using the Spontaneous Potential Method and Its Application to Oilfield Development

Junheng Wang^{1, 2
,
,},
Zhuping Pan³,
Shuwen Sun⁴,
Lei Guo¹

1.
State Key Laboratory of Geological Processes and Mineral Resources; Geo-detection Laboratory, Ministry of Education, Beijing 100083, China
2.
School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
3.
The No.6 Institute of Shandong Geo-exploration Bureau, Zhaoyuan 265400, China
4.
Department of Earth Sciences, Nanjing University, Nanjing 210093, China

Funds:

Geo-detection Laboratory, Ministry of Education of China 20060112

More Information

Corresponding author: Wang Junheng, w1128@sohu.com
Received Date: 20 Mar 2007
Accepted Date: 22 Jun 2007

Abstract

Abstract

The upper spontaneous potential produced by oil and gas accumulation is of a stable potential field, and its intensity is directly proportional to the content of the source and inversely proportional to the radius apart from the source. Theoretical research and practical results show that anomalies of spontaneous potential can indicate oil-bearing sandstone bodies and locate the areas of oil and gas accumulation. In oil areas which have fewer reservoir beds, the petroleum reservoir thickness can be predicted by determining the linear relationship between potential intensity and apparent equivalent thickness. In the Weixing (卫星) oilfield, which is devoid of sufficient reservoir beds, its apparent equivalent thickness can be predicted by the linear equation h= -0.19x+0.74. On the basis of geological research, we use the spontaneous potential method to predict the equivalent thickness, helping in the selection of the most appropriate drill sites to enhance the probability of successful well boring so as to serve the next round development of the oilfield.
- oil and gas accumulation,
- equivalent thickness,
- prediction

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References(14)

References

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