Title: Microseismic facies analysis and reservoir prediction for Carboniferous carbonates in Meigait Slope, Tarim basin.
Abstract: Carboniferous carbonate reservoirs in Meigait Slope, Southwest depression of Tarim basin is seriously anisotropic. The microseismic facies analysis of target intervals is helpful to find out favorable carbonate reservoir zones. Based on the seismogeology marking results of downhole carbonate reservoir zones and seismic profiles across wells, the authors set up the relationship between the microseismic facies and the carbonate reservoirs, and finished the microseismic facies analysis on the reflector (Tg2′) of the bottom of the Carboniferous Xiaohaizi Limestone Member in Qunkuqiake, the west of Meigait Slope, and on the reflector (Tg2″) of the bottom of Bioclastic Limestone Member of Carboniferous Bachu Formation in the east of Meigait Slope. Some promising exploration zones of carbonate reservoirs are proposed in the paper according to the analysis of the downhole carbonate sedimentary facies and reservoir characteristics, the tectonic location (paleostructure, neotectonic) of reservoir beds, as well as the microseismic facies analysis. The result shows that the karst development zones of Carboniferous Xiaohaizi Limestone Member ocurred mainly in the southwest part of Bashituopu anticlinal belt in Qunkuqiake areas, and the favorable reservoir zones of Bioclastic Limestone Member of Carboniferous Bachu Formation are distributed predominantly over the A, B, C, D four buried hills in the south of Mazhataki structural belt.
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot