济阳坳陷石油运聚效率定量预测方法及应用  

Quantitatively predicting method of petroleum migration & accumulation coefficient and its Application in Jiyang Depression

作　　者：左胜杰[1] 贾瑞忠[2] 庞雄奇[3] 金之钧[4] 

机构地区：[1]中石化集团国际石油勘探开发有限公司,北京100083 [2]中石化中原油田分公司勘探开发研究院,河南濮阳457001 [3]中国石油大学盆地与油藏研究中心,北京102249 [4]中石化石油勘探开发研究院,北京100083

出　　处：《西安石油大学学报（自然科学版）》2005年第4期17-20,共4页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技攻关项目"济阳坳陷复杂隐蔽油气藏地质评价和勘探关键技术研究"(编号:2001BA605A09)资助

摘　　要：以济阳坳陷17个高勘探程度油气成藏体系为研究子集,分别应用生烃潜力法和发现过程模型法计算了各成藏体系的生烃量和资源量,求取了石油运聚效率的分布范围为4%～14%,不同成藏体系的石油运聚效率有较大差异.利用逐步回归方法建立了石油运聚效率与地质要素之间的定量关系,确定石油运聚效率的主控因素是排烃强度、油气运聚范围、构造变动次数、目的层倾角、断层密度等.车镇凹陷北是济阳坳陷低勘探程度成藏体系中远景资源量最大的成藏体系,应作为下步挖潜勘探的重点区之一.The quantitative study on the petroleum migration & accumulation coefficient and the analysis of its main control factors are of importance to establishing scientific resource evaluation standard. Seventeen accumulation systems with higher exploration degree in Jiyang Depression being as the studied units, their hydrocarbon generation amount and resource amount are calculated by using hydrocarbon generation potential method and reservoir discovery process model method respectively. Their petroleum migration & accumulation coefficients are also calculated and range from 4 % to 14 %. There is greater difference among the petroleum migration & accumulation coefficients of different accumulation systems. The quantitative relationship between petroleum migration & accumulation coefficient and related geological factors is established by utilizing progressive regression method. Five parameters, i. e. the intensity of hydrocarbon expulsion, the scope of petroleum migration and accumulation, the number of tectonic events, the dip angle of target bed, and the density of faults, are determined to be the major controlling factors of petroleum migration & accumulation coefficient. The accumulation systems with lower exploration degree in the northern Chezhen Sag are the accumulation systems with greater resource potential in Jiyang Depression, and therefore, the northern Chezhen Sag should be one of the major zones for futrure exploration.

关 键 词：济阳坳陷石油 石油运聚效率 油气成藏体系 主控因素 资源评价 

分 类 号：TE122.12[石油与天然气工程—油气勘探]