Application of 3D Prestack Simultaneous Inversion to Panyu Gasfield
详细信息
- 责任者：Xuan Yihua(Research Institute ; Shenzhen Branch ; CNOOC Energy Technology & Services Co. Ltd. ; Guangzhou 510240 ; China) ; Qin Chenggang
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2010
- 卷期：49(3)
- 关键词：油气勘探 ; petroleum exploration ; 深度偏移 ; depth migration ; 叠前偏移 ; prestack migration ; 珠江口盆地 ; Zhujiangkou Basin
- 页码：p.257-267
- 图表：illus., 7 refs.
- 分类号：1600
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
The reservoir characteristics of PY35-2 area of Panyu-Liuhua Gasfield in Pearl River Month Basin are complex, it is difficult to predict gas-bearing area by conventional technologies. To effectively identify reservoir and improve exploration success rate, based on detailed analysis on the petrophysical characteristics, 3D prestack simultaneous inversion was used to identify reservoir and its fluid properties. The result shows that the density can recognize the main reservoir of PY35-2 area. Meanwhile, the inversion result can well distinguish gas reservoir and watered reservoir, and decrease the risk of exploration. The obtained anomaly plane distribution of density was used to predict the favourable drilling target in the area, which was proved by the well deployed by the prediction result.