裂隙识别技术及其在油气和水合物勘探中的应用

doi:10.11978/2019011

Abstract

Abstract:

Fractures are favorable transport systems for forming of hydrocarbon reservoirs and gas hydrate deposits. However, it is difficult to identify micro-fractures by conventional means due to limited seismic resolution. For the development of practical fracture identification technique, we analyze seismic wave kinematic and dynamic characteristics of fractures, combine functions and principles of relevant techniques, and fuse 3-D visualization technique and coherent technique. Fissure channels were successfully characterized in diapiric structures of the Yinggehai Basin, and gas fields were discovered using this technique. Through practice and analysis, this technique can also be applied to the study of gas hydrate migration system of the Qiongdongnan Basin. It is an effective fracture identification technique.

Key words: fracture identification technique, diapir, gas hydrate, transport channel

CLC Number:

P738

SONG Ruiyou, YU Junfeng, CHAO Caixia, SONG Peng, PAN Guangchao. Fracture identification technique and its application in gas and hydrate exploration[J].Journal of Tropical Oceanography, 2020, 39(1): 120-129.

Figures/Tables 6

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Fracture identification technique and its application in gas and hydrate exploration

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