Pore Texture Evaluation of Carbonate Reservoirs in Turkmenistan s Gas Field A
Carbonate reservoirs in Gas Field A of Turkmenistan are evaluated and compared between different struc tures. The reservoirs of great anticline structures mainly presents characteristics of pore -vug texture, and the reser voir of drape structure mainly presents characteristics of pore texture and fracture -pore texture. From the view of carbonate reservoir development, a new physical aggregative index Zs of reservoir property is proposed based on dy namic texture analysis, relatively low poroperm correlation and its relatively high correlation with central capillary pressure. The index is applied in actual reservoir analysis and it shows preferable availability in carbonate reservoir evaluation of Gas Field A. As a result, the reservoir is classified into four grades according to reservoir aggregative property. By means of capillary pressure data used to generate the gas saturation -gas column height curves of dif ferent grades reservoirs, and to analyze liquid distribution combining with conventional and image logging data, and wireline formation testing data. The development and availability of fractures have regional apparent diversity. Finally, it is pointed out that fractures and micro -fractures play a very important role in gas deliverabili ty of carbonate reservoir development especially in drape structure area.
Guo Zhenhua Li Guanghui Han Guiqin Jiang Yinghui
国际会议
2010 CNPC International Wellbore Technology Seminar(2010年CNPC井筒技术国际研讨会)
北京
英文
55-64
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）