Tri-Porosity Logging Model of Carbonate Reservoir in Tahe Oilfield and Its Applicationoft-com:office:office" />
详细信息
- 责任者：Qi Lixin (Exploration and Development Research Institute ; Northwest Oilfield Branch Company ; SINOPEC ; Urumqi 831100 ; China) ; Fan Zhengjun
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2010
- 卷期：49(5)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 地球物理测井 ; geophysical logging ; 塔里木盆地 ; Tarim Basin
- 页码：p.489-494
- 图表：7 illus., 11 refs.
- 分类号：1003
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
The fracture-cave carbonate reservoir in Tahe Oilfield has strong heterogeneity,fractures and caves are developed,so quantitatively computing the porosity of matrix and fracture is the key for evaluating the fracture-cave carbonate reservoirs..The log interpretation model,which was composed by rock matrix bulk,matrix pore bulk,connected fracture-cave bulk and unconnected fracture-cave bulk,can simulate the parallel conduction network of matrix and connected fracture-cave as well as series conduction network of unconnected fracture-cave and matrix.We utilize the neutron and density log data to calculate the gross porosity,acoustic data to calculate matrix porosity,combined with LLD and LLS resistivity to calculate the pore bulk of connected fracture-cave and unconnected fracture-cave.The calculated three pore components are applicable for all kinds of reservoir combinations,and can be used for judge the effectiveness of reservoir.The favorable reservoir by using this method is matrix pore and connected fracture-cave as well as porecave -fracture combination.