Discussion on T1f 3 Reservoir Formation Mechanism, Tongnanba Area
详细信息
- 责任者：Duan Xinguo (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Li Ying
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(6)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 四川盆地 ; Sichuan Basin
- 页码：p.1165-1174
- 图表：5 illus., 1 plate, 2 tables, 16 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
In this paper, the authosr deeply discussed the reservoir forming mechanism of T1f3 reservoir in Tongnanba area through the analysis of the diagenesis types and it’s influence to the porosity evolution, diagenetic evolution sequence, and contrast to which in Puguang gas field. According to the research there are three factors which controll the forming of T1f3 reservoir: 1) dolomitization is very weak because of the limitation of the sedimentary and diagenetic environment, so the dolomite reservoir do not develop, which lead to the poor reservoir develop; 2) primary pore disappeared basicly, dissolution become the key factor to the forming of T1f3 reservoir, syn-sedimentary dissolution are dominant among dissolution in all stages; and 3) there are not TSR reaction in T1f3 reservoir because of the hydrocarbon injection did not happen during the middle-deep burial stage. So the destructive diagenesis enhancement relatively can not influence resevroir quality.
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