Quantitative identification and analysis of sub-seismic extensional structure system: technique schemes and processes. (June 2015)

• Record Type: Journal Article
• Authors: Chenghua, Ou; Chen, Wei; Ma, Zhonggao
• Is Part Of: Journal of geophysics and engineering. Volume 12:Number 3(2015:Jun.)
• Page Start: 502
• Page End: 514
• Publication Date: 2015-06
• Subjects: Geophysics -- Periodicals; Prospecting -- Geophysical methods -- Periodicals; Engineering -- Periodicals; 622.1505
• DOI: 10.1088/1742-2132/12/3/502
• Languages: English
• ISSNs: 1742-2132

Abstract

<abstract> <title>Abstract</title> <p>Quantitative characterization of complex sub-seismic extensional structure system that essentially controls petroleum exploitation is difficult to implement in seismic profile interpretation. This research, based on a case study in block M of Myanmar, established a set of quantitative treatment schemes and technique processes for the identification of sub-seismic low-displacement (SSLD) extensional faults or fractures upon structural deformation restoration and geometric inversion. Firstly, the master-subsidiary inheritance relations and configuration of the seismic-scale extensional fault systems are determined by analyzing the structural pattern. Besides, three-dimensional (3D) pattern and characteristics of the seismic-scale extensional structure have been illustrated by a 3D structure model built upon seismic sections. Moreover, according to the dilatancy obtained from structural restoration on the basis of inclined shear method, as well as the fracture-flow index, potential SSLD extensional faults or fractures have been quantitatively identified. Application of the technique processes to the sub-seismic low-displacement extensional structures in block M in Myanmar is instructive to quantitatively interpret those SSLD extensional structure systems in practice.</p> </abstract>