|Table of Contents|

Trap of Seismic Section and Geophysical Interpretation Method for Complex Terrain(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第03期
Page:
299-301，322
Research Field:
应用地球物理
Publishing date:

Info

Title:
Trap of Seismic Section and Geophysical Interpretation Method for Complex Terrain
Author(s):
ZHANG Ya-min1;  ZHANG Shu-fa2;  WANG Hui3
(1.School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2.Institute of Exploration and Development, Zhongyuan Oilfield Company, China Petroleum and Chemical Corporation, Puyang 457001, Henan, China; 3.Editorial Board of Journal of Xi'an Shiyou University, Xi'an 710065,Shaanxi, China)
Keywords:
fixed datum;  floating datum;  filling speed;  mapping methods
PACS:
P631.4+1
DOI:
-
Abstract:
Using the building forward model, the distortion of structures and false structure caused by topographic variation and the difference of filling speed between floating datum and fixed datum is studied. Seismic section is consistent with model, and real structural shape is reflected when filling speed is similar to average velocity of target layer. The attitude distortion of seismic section is consistent with the shape of floating datum if filling speed is less than average velocity of target layer. The attitude distortion of seismic section is opposite to the shape of floating datum if filling speed is more than average velocity of target layer. The false structure can be eliminated through the structural map with fixed datum, thus reflecting the real structural shape, solving the problem of structural fidelity, improving exploration precision and success rate of drilling, and ensuring the quality of exploration.

References:

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Memo

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Last Update: 2009-09-20