摘要
陆梁隆起是准噶尔盆地腹部重要的油气勘探区 ,受断裂封闭性的控制 ,该区的油气断裂两侧呈阶梯状、环状等多种形式分布 ,故断裂侧向封闭性的研究对该区的油气勘探开发起着重要的指导作用。由于研究区内钻井很少穿过断层 ,运用常规方法研究该区断层侧向封闭性具有一定困难。而断层两侧的流体性质爱断层侧向封闭性控制 ,侧向封闭性差的断层两侧流体性质具有相似性 ,侧向封闭性好的断层两侧流体性质具有较大的差异性 ,根据该原理 ,结合模糊数学知识 ,提出一种新的评价断层侧向封闭性方法———流体性质模糊评价法。分析结果与实际勘探状况比较一致 ,说明运用该方法可以对那些直接获取断层面资料比较困难的断层进行侧向封闭性研究。
The migration and accumulation of the hydrocarbon in the Luliang uplift of Junggar basin has close relation with the faults developed there,so the lateral sealing of faults is significant for the hydrocarbon distribution and the resource estimation.Although there have been many methods to study the capacity of lateral sealing ,the evaluation on the lateral sealing of faults in the research region is very difficult.The reason is that the drillings there are scarcely through faults ,which leads to little datum of faults for research.According to the principle that the characteristics of fluid are resemble across the faults whose lateral sealing are of no effect,a new method of evaluation capacity of lateral sealing is put forward with the knowledge of fuzzy mathematics.
出处
《断块油气田》
CAS
2003年第5期17-19,共3页
Fault-Block Oil & Gas Field
