Wavelet Transformation Technique for Improving Vertical Resolution in Well Logging Curves

Xinjiang Petroleum Geology ›› 2004, Vol. 25 ›› Issue (5): 529-531.

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Wavelet Transformation Technique for Improving Vertical Resolution in Well Logging Curves

FENG Guo-qing¹, YANG Kun², CHEN Zhong-qiang³, SHEN Yong-wei⁴

1. Institute of Petroleum Engineering, Southwest Petroleum Institute, Chengdu, Sichuan 6 10500, China;
2. Research Institute of Explorationand Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
3. Well Logging Co., Xinjiang PetroleumAdministration Bureau, PetroChina, Karamay, Xinjiang 834000, China;
4. No.2 Production Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China

Received:2004-01-08 Published:2021-01-13

Abstract

Abstract: Wavelet transformation is a new method that can make local signal analysis both in time and frequency domains, where the time domain resolution could change and increase with scale factor. The method is characterized by good localized time and frequency domain that could converge signals at any detail. By means of Mallat arithmetic, the method can be used to decompose and reconstruct well log curves, and improve the vertical resolution. Compared w ith deconvolution method, the well log curves transformed by wavelet analysis contain more detailed information and reach higher vertical resolution.

Key words: wavelet transformation, well log curve, decomposition, reconstruction, vertical resolution

CLC Number:

P631.9

FENG Guo-qing, YANG Kun, CHEN Zhong-qiang, SHEN Yong-wei. Wavelet Transformation Technique for Improving Vertical Resolution in Well Logging Curves[J]. Xinjiang Petroleum Geology, 2004, 25(5): 529-531.

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Wavelet Transformation Technique for Improving Vertical Resolution in Well Logging Curves

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