Fine Seismic Description of Complex Fault Block Oil Reservoir: Taking Y3 Project Area in Shengli Oilfield as an Example
详细信息
- 责任者：Li Jun (College of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Zhang Junhua
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2013
- 卷期：20(5)
- 关键词：相干体技术 ; coherent cube techniques ; 复杂油气藏 ; complex reservoir ; 断块油气藏 ; fault block reservoir ; 东营凹陷 ; Dongying Sag
- 页码：p.580-584
- 图表：7 illus., 16 refs.
- 分类号：1600
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
With the deeping of petroleum exploration and development,the fault block reservoirs have become one of the important exploration targets.To this kind of subtle reservoir,we must rely on the effective seismic technology to improve the identification ability and description because of the low SNR of seismic data and difficulties in exploration.Based on researching the principle of seismic methods and taking Y3 Project Area in Shengli Oilfield as an example,this paper emphatically analyzes the coherence cube technology,curvature attribute,the method of seismic attributes extraction based on the rotating rhombus,multi-scale analysis technology and RGB multi-attribute fusion technology which are effective methods for fault block oil reservoir.And a good application result has been obtained.Study results show that the coherent attribute based on eigenvalue has higher resolution and stronger anti-noise performance than that by semblance and correlation method.We can get the overall distribution of faults through it.The curvature attributes such as dip,azimuth and the maximum positive curvature can reflect shattered fault zones and low level faults.By using the directional characteristic of the rhombic long diagonal,the extraction of seismic attributes based on rhombic rotating body can describe the directions of faults accurately and identify the shattered fault zones quantitatively.We can also get obvious seismic response and spatial distribution of faults with multi-attribute fusion and multi-scale analysis technology.
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