沉积构型刻画方法、装置、存储介质、处理器及程序产品

By combining well logging data and lithological data, sedimentary configuration patterns are extracted from seismic data volumes. Morphological methods are used to characterize the configuration unit boundaries and contact features of gas fields in low-well areas at sea, solving the problem of configuration characterization under low-resolution seismic data and achieving fine sedimentary configuration characterization.

CN120847866BActive Publication Date: 2026-07-17CHINA PETROLEUM & CHEMICAL CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In offshore gas fields with few wells, the low quality of seismic data, large well spacing, multiple superpositions of large braided channels, and small differences in wave impedance between sandstone and mudstone make it difficult to achieve the configuration characterization at the single channel level, which cannot meet the needs of oilfield production and development.

Method used

By acquiring well logging data, lithological data, and seismic data volumes, sedimentary configuration patterns are determined. Morphological methods are used to extract configuration boundary skeleton maps from RGB frequency division attribute fusion maps to characterize the boundary and contact features of multiple configuration units within the target work area.

Benefits of technology

Under low-resolution seismic data conditions, the sedimentary configuration within the target work area was finely characterized, and the boundary and contact features of multiple configuration units were identified, meeting the needs of efficient development of gas reservoirs in offshore areas with few wells.

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Abstract

本发明实施例提供一种沉积构型刻画方法、装置、存储介质、处理器及程序产品,属于石油勘探开发技术领域。该方法包括:获取基于测井数据、岩性数据和地震数据体得到的目标工区内的沉积构型模式;基于岩性数据和测井数据,从地震数据体中确定沉积构型模式中每一沉积层的低频、中频和高频单频体,得到目标工区的RGB分频属性融合图;采用形态学方法从RGB分频属性融合图中提取构型边界骨架图;基于提取到的构型边界骨架刻画目标工区内多个构型单元中每一者的边界特征和多个构型单元中不同构型单元的接触特征,以完成目标工区内的沉积构型刻画。该方法能够克服低分辨率地震资料限制,完成勘探目标工区内的构型单元,特别是河道构型单元的刻画。
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