松辽盆地北部薄互层复杂构造的精细刻画方法与应用

崔凤林; 张向君; 王世清

Volume 30 Issue 4

Jul. 2005

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Article Navigation > Earth Science > 2005 > 30(4): 503-508

CUI Feng-lin, ZHANG Xiang-jun, WANG Shi-qing, 2005. Meticulous Depiction Methodology and Application of Complicated Structures of Reciprocal Thin Layers in Northern Songliao Basin. Earth Science, 30(4): 503-508.

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Meticulous Depiction Methodology and Application of Complicated Structures of Reciprocal Thin Layers in Northern Songliao Basin

1.
School of Energy Resources, China University of Geosciences, Beijing 100083, China
2.
Research Institute of Daqing Geophysical Exploration Company, Daqinq 163357, China

Received Date: 2004-12-28
Publish Date: 2005-07-25

Abstract

Abstract

Small fault blocks, small sand bodies and the related subtle traps have gained greater commercial value with the growth in oil and gas exploration and development. The complicated structures of reciprocal thin layers developed in northern Songliao basin, such as small structures with altitudes 5-10m, small faults with throws 3-5m and thin sand bodies 1- 2m thick, play an important role in the accumulation of oil and gas. The meticulous depiction of these complicated structures requires a set of new techniques. We have developed some methods including high precision synthetic seismograms, coherency cubes and fault polygon information extraction, and precise spatial migration technology for 2-D migration sections, according to the geology and seismic data of the northern Songliao basin. We realized meticulous calibration of seismic-geologic horizons, meticulous interpretation of faults and 2-D poststack migration mapping, using those methods. Their application to the northern Songliao basin shows that they can improve the accuracy and efficiency of fault interpretation, such as in defining the extent of faults and the width of their fracture zones, as well as defining small faults with only 3-5m throws. Meticulous depiction of complicated structures of reciprocal thin layers in northern Songliao basin provides a base for reservoir description and the construction of precise geological models.
- reciprocal thin layer,
- complicated structure,
- meticulous depiction,
- methodology and application,
- Songliao basin

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References(19)

References

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