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3D Seismic Acquisition Technology and Effect of Complex Mountainous and Tectonic Areas in Shale Gas Play of ChinaNormal access

Authors: W. Liu Inc. of CNPC, Z.Y.S. Zhang, Y.G. Yu, Z.J.J. Zhang and H.C.J. Hu Inc. of CNPC
Event name: First EAGE/AMGP/AMGE Latin-American Seminar in Unconventional Resources
Session: Seismic / Integrated Model To Identify And Characterize The Sweet Spot I
Publication date: 23 November 2017
DOI: 10.3997/2214-4609.201702528
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.52Mb )
Price: € 20

Summary:
The geological structure is very complex; the formation shows typical structural style feature of septum; and the burial depth and dip angle of the shale formation change dramatically. In this paper, we introduce a shale gas formation 3D seismic survey geometry design and optimization with wide azimuth, moderate bin size, high fold number, long spread and relatively even sampling for the prediction of the important reservoir parameters such as fault, fissures, TOC, brittleness and pressure coefficient, and estimating and evaluating the distribution of shale gas sweet spots. These information have guided the horizontal well location selection and well trajectory design optimization effectively for several exploration and production blocks of marine shale gas in the mountain area of South China.


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