松辽盆地北部三肇凹陷卫星油田扶余油层油气富集规律  

Oil and Gas Enrichment Regularity of Fuyu Reservior in Weixing Oilfield of Sanzhao Depression in the northern Songliao Basin

作　　者：张英芝[1] 杨铁军 

机构地区：[1]安达市庆新油田开发有限责任公司,黑龙江安达151400 [2]大庆榆树林油田开发有限责任公司,黑龙江大庆163000

出　　处：《长江大学学报（自然科学版）》2017年第11期12-17,共6页Journal of Yangtze University(Natural Science Edition)

基　　金：国家自然科学基金项目(41502136)

摘　　要：在油气藏类型及分布规律研究基础上,采用油气分布与成藏条件叠合分析方法,对松辽盆地三肇凹陷源外斜坡区卫星油田扶余油层油气成藏主控因素进行了研究。结果表明,扶余油层发育断层-岩性、岩性和断背斜3种类型油气藏,其中受储层连通性差和多方位断层分割影响,断层-岩性油藏为最主要类型。扶余油层油气成藏主控因素为:三肇凹陷向斜区青一段优质烃源岩提供了油气富集先决条件;北西向断层密集带边界断层组成油气运移优势通道;断层密集带两侧反向断阶圈闭为油气主要富集部位,其中背形圈闭反转系数越大含油性越好。最终建立卫星油田扶余油层"源-路-圈"控藏的源外斜坡区油气成藏模式:源内向斜区优质烃源岩供烃-近源斜坡区分流河道"桥连"油源断层输导-源外斜坡区断层密集带正向构造圈闭聚油。Based on the study of reservoir types and distribution law,the main controlling factors of oil and gas accumulation and distribution of Fuyu Reservoir in Weixing Oilfield of slope zone of Sanzhao Depression in Songliao Basin were studied.The result showed that in Fuyu Reservoir three kinds oil and gas reservoirs:fault-lithology,lithology and faulted anticline reservoirs were developed,affected by poor reservoir connectivity and multi-directional fault segmentation,fault-lithology reservoir was the main reservoir type.The oil and gas accumulation and distribution of Fuyu Reservoir were controlled by following factors.The high-quality source rocks of Qingyi Segment in Sanzhao Depression provided a prerequisite for the enrichment of oil and gas,an advantage migration channel is composed of faults in the dense fault boundary in the northwest,the reverse fault traps in the dense fault zone were the main enrichment sites of the oil and gas,the greater the inversion coefficient of the antiformal trap is,the better the oil-bearing property is.Eventually a'source-channeltrip'hydrocarbon accumulation mode is established for Fuyu Reservoir in Weixing Oilfield:highquality source rocks provides source within the inclined area for hydrocarbon-proximal source distributary channel'bridging'oil source fault in the slope area for conduction and oil accumulating in positive tectonics of the fault dense belt traps.

关 键 词：源外斜坡区 成藏主控因素 成藏模式 扶余油层 卫星油田 松辽盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探]