Recognition of Low Relief Structure-Lithologic Reservoir
详细信息
- 责任者：Bai Xiaoyin (Northwest Branch ; Research Institute of Petroleum Exploration & Development ; PetroChina ; Lanzhou 730020 ; China) ; Huang Yu
- 刊名：Oil Geophysical Prospecting
- 出版年：2012
- 卷期：47(2)
- 关键词：地震勘探 ; seismic exploration ; 构造油气藏 ; structural reservoir ; 岩性油气藏 ; lithologic reservoir ; 准噶尔盆地 ; Junggar Basin
- 页码：p.291-297
- 图表：12 illus., 1 table, 15 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
In Junggar Basin,identification of small lithologic reservoirs,such as well Lu 10 to Lu 6 controlled by low relief structure,is a real challenge.The main problems are low relief,small faults,and difficult horizon tracking due to little well information.At the same time,heterogeneity makes reservoir identification more difficult.To solve these problems,we apply series of methods,such as joint calibration by well-log cycles and two-dimensional spectrum for horizon tracking,multi-scale fracture automatic detection for small fault identification,variable velocity mapping constraint by dip logging for low relief structure recognition,and wavelet decomposition and frequency inversion for reservoir prediction.Eventually 8 traps of low relief structure are found with a total area of 281km2.Our solution is proven effective and practical by recent well drilling.
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