Multiple-frequency attribute blending via adaptive uniform manifold approximation and projection and its application on hydrocarbon reservoir delineation

Author:

Liu Naihao1ORCID,Zhang Zezhou1ORCID,Zhang Haoran1ORCID,Wang Zhiguo2ORCID,Gao Jinghuai1ORCID,Liu Rongchang3ORCID,Zhang Nan4ORCID

Affiliation:

1. Xi’an Jiaotong University, School of Information and Communications Engineering, Xi’an, China.

2. Xi’an Jiaotong University, School of Mathematics and Statistics, Xi’an, China. (corresponding author)

3. PetroChina Research Institute of Petroleum Exploration and Development (RIPED), CNPC, Beijing, China.

4. Yumen Oilfield Company, CNPC, Research Institute of Exploration and Development, Jiuquan, China.

Abstract

Multifrequency attribute blending is a highly effective tool for characterizing hydrocarbon reservoirs. It begins by extracting multifrequency attributes of seismic data based on time-frequency transformation. Subsequently, a blending algorithm is used to fuse the extracted multifrequency components, thereby obtaining the interpretation results of the interested reservoirs. The red-green-blue (RGB) algorithm is commonly used to fuse the multifrequency components. However, it should be noted that the RGB blending algorithm can only fuse three frequency components, i.e., the low-, middle-, and high-frequency components. Moreover, it can occasionally introduce ambiguities, making it difficult to interpret areas that appear white or yellow. To address these issues, we develop a workflow for multiple-frequency component analysis to delineate hydrocarbon reservoirs. First, we apply the generalized S-transform to obtain the multiple-frequency components of seismic data. Then, the correlation analysis is developed and implemented to select the sensitive frequency components. Finally, we use the uniform manifold approximation and projection, a nonlinear dimension reduction algorithm, to blend the extracted multiple-frequency components and obtain reservoir interpretation results. We apply the suggested workflow to synthetic data and a 3D field data volume to evaluate its effectiveness. Our mathematical analysis demonstrates that the suggested workflow can effectively fuse multiple-frequency components to accurately characterize hydrocarbon reservoirs.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

China Uranium Industry and East China University of Technology Joint Innovation Fund

Research Institute of Exploration and Development, Yumen Oilfield Company

Publisher

Society of Exploration Geophysicists

Subject

Geochemistry and Petrology,Geophysics

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