基于排出-聚集-成藏的石油资源潜力评价方法:以南堡Ⅳ油气成藏体系为例  

A Study of the Petroleum Potential Appraisal Method Based on the Hydrocarbon Expulsion-Accumulation-Reservoir:An Example of the Nanpu Ⅳ Accumulation System

作　　者：范柏江[1] 董月霞[2] 庞雄奇[1] 姜福杰[1] 

机构地区：[1]中国石油大学油气资源与探测国家重点实验室,北京102249 [2]中国石油天然气股份有限公司冀东油田公司,河北唐山063200

出　　处：《地质科技情报》2012年第2期50-54,共5页Geological Science and Technology Information

基　　金：国家科技重大专项"大型油气田及煤层气开发"(2011ZX05006-006);国家重大专项"新一轮全国油气资源评价"(ZP-002)

摘　　要：不同的油气资源评价方法具有不同的特点,将不同的评价方法相结合对于提高评价结果的准确度具有重要意义。基于油气排出-聚集-成藏的地质历史过程,同时结合油气勘探的数学规律来建立油气资源的定量预测模型,以此进行石油资源潜力评价。具体研究可分为4个步骤:①对研究区进行油气成藏体系的划分并定量研究其排烃强度,确定排烃量;②确定该油气成藏体系的石油聚集系数,进而确定该成藏体系的石油资源量;③利用石油资源量与最大油藏规模的统计关系,确定研究区的最大油藏规模;④拟合研究区K值,确定油藏个数及油藏规模。对南堡Ⅳ油气成藏体系的应用研究结果表明:南堡Ⅳ油气成藏体系的累积排烃量达到12.50×108 t,石油聚集系数为27.64%,其石油资源量总计3.45×108 t,K值拟合结果为1.02,最大油藏规模达到0.568×108 t,预测油藏个数总计337个。评价结果表明南堡Ⅳ油气成藏体系具有较好的石油资源前景。Each resource appraisal method has its own characteristics,thus utilizing the synthetic method based on these methods is of vital significance to the accuracy of appraisal results.Based on the geological process of hydrocarbon expulsion,accumulation,reservoir,and the mathematical regularity in the petroleum exploration,this paper established the quantitative model to study the petroleum resource potential.The concrete steps are as followed.The first step is to study the hydrocarbon expulsion intensity and the hydrocarbon expulsion quantity within the hydrocarbon accumulation system.The second step is to study the accumulation coefficient and the petroleum resources within the hydrocarbon accumulation system.The third step is to study the largest pool size,the K value and the pool sizes by using the statistic pattern.The research on the Nanpu Ⅳ accumulation system shows that,the hydrocarbon expulsion volume is 12.50×108t.The petroleum accumulation coefficient is 27.64%.The petroleum resources is 3.45×108 t.The largest pool size is 0.568×108 t.There are 337 pool sizes needed to be exploration.The petroleum potential of Nanpu is good.

关 键 词：成藏体系 资源评价 方法研究 

分 类 号：P624.7[天文地球—地质矿产勘探]