利用地震资料确定油源断裂输导油气能力及油气富集的差异性

发布时间：2018-06-16 13:27

本文选题：地震资料 + 油源断裂　；参考：《地球物理学进展》2017年01期

【摘要】：为了更加准确地研究油源断裂在下生上储油气成藏中的作用,在油源断裂类型及其特征研究的基础上,通过不同油源断裂和同一条油源断裂不同时期和不同部位活动特征、断面产状与油气分布之间关系分析,对油源断裂输导油气能力及油气富集的差异性进行了研究,结果表明:油源断裂输导油气能力及油气富集的差异性主要表现在以下3个方面:1不同油源断裂同一时期的输导油气能力及油气富集存在差异性,活动强度大的油源断裂输导油气能力强,有利于油气聚集,其附近油气富集;而活动强度小的油源断裂输导能力弱,不利于油气聚集,其附近油气不富集.2同一条油源断裂不同时期的输导油气能力及油气富集存在差异性,强活动时期油源断裂输导油气能力强,有利于油气聚集,对油气富集所起作用越大,应是油气成藏的主要时期;而弱活动时期油源断裂输导油气能力弱,不利于油气聚集,对油气富集所起作用越小,不是油气成藏的主要时期.3同一条油源断裂不同部位的输导油气能力及油气富集存在差异性,活动速率大的油源断裂凸面脊发育部位输导油气能力强,有利于油气聚集,是油气成藏的有利部位;而活动速率小的油源断裂非凸面脊发育部位输导油气能力弱,不利于油气聚集,不是油气成藏的有利部位.
[Abstract]:In order to study more accurately the role of oil-source faults in the formation of oil reservoirs on the lower source, on the basis of the study of the types and characteristics of oil-source faults, the active characteristics of different oil source faults and the same oil-source faults in different periods and different parts are discussed. Based on the analysis of the relationship between fault section occurrence and oil and gas distribution, the oil and gas transport ability and the difference of oil and gas enrichment in oil-source faults are studied. The results show that the differences of oil and gas transport ability and hydrocarbon enrichment of oil-source faults are mainly manifested in the following three aspects: 1. There are differences in oil and gas transport capacity and hydrocarbon enrichment between different oil source faults at the same time. The oil-source fault with high activity intensity has strong ability of transporting oil and gas, which is favorable to oil and gas accumulation, but the oil source fault with low activity intensity is weak, which is not conducive to oil and gas accumulation. There are differences in oil and gas transport ability and hydrocarbon enrichment in different periods of the same oil source fault in the vicinity of oil and gas enrichment. Oil source fault has strong oil and gas transport ability in strong activity period, which is beneficial to oil and gas accumulation, and the effect on oil and gas enrichment is greater. It should be the main period of oil and gas accumulation, but in the weak activity period, the ability of oil source fault to transport oil and gas is weak, which is not conducive to oil and gas accumulation, and the effect on oil and gas accumulation is smaller. There are differences in oil and gas transfer ability and hydrocarbon enrichment in different parts of the same oil source fault during the main period of oil and gas accumulation. The oil source fault with high activity rate has strong oil and gas transport ability in the development area of the uplift ridge, which is conducive to oil and gas accumulation. It is a favorable position for oil and gas accumulation, and the oil source fault with low activity rate is not favorable for oil and gas accumulation because of its weak ability to transport oil and gas, which is not favorable for hydrocarbon accumulation in the development area of non-convex ridge of oil source fault.
【作者单位】：东北石油大学;
【基金】：国家自然科学基金“断层岩水压张裂漏油主控因素及张性破裂压力预测”(41372154) 中国石油科技创新基金项目(2015D-5006-0103)联合资助
【分类号】：TE86

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