Seismic Identification and Description Technique for Upper Es3 Fractured Mudstone Reservoir with Salt Interbed in Dongpu Depression
详细信息
- 责任者：Wang Gonghuai (Geophysical Prospecting Research Institute ; Zhongyuan Oilfield Company ; SINOPEC ; Puyang 457001 ; China) ; Deng Mingxia
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(4)
- 关键词：裂缝性油气藏 ; fractured reservoir ; 地震勘探 ; seismic exploration ; 东濮凹陷 ; Dongpu Sag
- 页码：p.461-464
- 图表：illus., 6 refs.
- 分类号：1600
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Fractured mudstone reservoirs are always being found in the exploration history in Dongpu Depression.However,because of its concealment and complexity,the prediction and exploration about this kind of reservoir is very difficult.The fractured mudstone reservoirs have been found by chance in initial exploration stage.So,how to identify and predict the fractured mudstone reservoir by the use of seismic data is a key technique which requires to be resolved in the exploration of this kind of reservoir.In this paper,through the analysis of the geological and seismic features of the fractured mudstone reservoir in upper Es3 salt interbed in Liutun Sag,the characteristics of core and logging data about fractured mudstone reservoir have been studied by means of comprehensive explanation of seismic sections,drilling and well logging data.The paper conducts the petrophysical analysis and the vertical and lateral seismic response feature analysis for single well and multiple wells on the basis of normalization for logging data.It determines the geophysical features in this area which are the strong amplitude,low density,low velocity and low-impedance.On the basis of the accurate selection of sensitive seismic parameters,the fractured mudstone reservoir has been predicted and identified in this area by using the seismic attributes analysis and wave impedance inversion.And good application effects have been achieved.
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