高宁,宋颜生,葛思
GAO Ning,SONG Yansheng,GE Si

• 1:东北石油大学地球科学学院
• 2:大庆油田有限责任公司第五采油厂

摘要(Abstract)：

为了研究三肇凹陷扶杨油层油分布规律,通过对比两种运移形式所需条件、分布特征及其控制油气分布的差异性,对青一段源岩生成油向下伏扶杨油层的倒灌运移和侧接运移进行了研究。结果表明:两种油运移形式所需的条件不同,倒灌运移条件是青一段源岩具有足够大的超压和输导断裂,而侧接运移条件是断裂错断使上盘青一段源岩与下盘扶杨油层对接且地层呈倾斜状态;两种运移形式分布特征不同,倒灌运移可分布在三肇凹陷整个排烃区内,而侧接运移仅分布在鼻状构造区和断裂密集带两侧斜坡处;受两种运移形式控制形成的油分布特征不同,受倒灌运移控制形成的油纵向上从扶Ⅰ油层组至杨Ⅰ油层组分布,平面上可分布在整个排烃区内且主要分布在鼻状构造区;受侧接运移控制形成的油纵向上主要分布在顶部的扶Ⅰ油层组,平面上可分布在鼻状构造区和断裂密集带两侧。研究成果对正确认识该区油分布规律和指导油勘探具重要意义。
In order to study the oil distributing laws in FY oil layers of Sanzhao Sag,the differences on oil migration forms and their controlled on oil distribution were studied by means of the comparisons of the required conditions,distribution characteristics and controlled oil-gas distributions of two forms of the migration,the downward migration and lateral migration from Member K2 qn1 source rock to FY oil layers were figured out. The achievements show that the required conditions of two migration forms are different,the downward migration needs enough overpressure and transporting faults in Member K2 qn1 source rocks,while the lateral migration requires the juxtaposed upper wall faulted by transporting faults in Member K2 qn1 source rock with the footwalls in FY oil layers and moreover the formations are inclined; The distribution characteristics of two migrating forms are different,the downward migration occurs in the expulsion zone of Member K2 qn1 source rock,while the lateral migration only distributes in the nose structures and two-side slopes of the fault condensed belts; The oil distribution characteristics controlled by the two migration forms are various,the oil controlled by the downward migration vertically distributes from OilGroup FⅠ to Oil Group YⅠ,while horizontally distributes in all the expulsion zone,especially mainly in the nose structures; The oil controlled by the lateral migration mainly distributes in Oil Group FⅠ in profile,while in plane the oil distributes in the nose structures and two sides of the fault condensed belts. The study achievements possess important significances for correctly understanding the oil distribution laws in the region and guiding the oil exploration.

关键词(KeyWords)： 油运移形式;油分布;三肇凹陷;青一段源岩;扶杨油层
oil migrating form;oil distribution;Sanzhao Sag;Member K2qn1 source rocks;FY oil layer

Abstract:

Keywords:

基金项目(Foundation): 国家自然基金项目“油源断裂转换带优势输导油气条件研究”(41372153)

作者(Author): 高宁,宋颜生,葛思
GAO Ning,SONG Yansheng,GE Si

DOI: 10.19597/J.ISSN.1000-3754.201711057

参考文献(References)：

• [1]迟元林,萧德铭,殷进垠.松辽盆地三肇地区上生下储“注入式”成藏机制[J].地质学报,2000,74(4):371-377.
• [2]付广,王有功.三肇凹陷青山口组源岩生成油向下“倒灌”运移层位及其研究意义[J].沉积学报,2008,26(2):355-360.
• [3]施立志,吴河勇,林铁锋,等.松辽盆地大庆长垣及其以西地区扶杨油层油气运移特征[J].石油学报,2007,28(6):21-31.
• [4]付广,李晓伟.源外上生下储成藏主控因素及有利区预测:以松辽盆地尚家地区泉二段为例[J].岩性油气藏,2009,21(1):1-5.
• [5]付晓飞,平贵东,范瑞东,等.三肇凹陷扶杨油层油气“倒灌”运聚成藏规律研究[J].沉积学报,2009,27(3):558-566.
• [6]霍秋立,冯子辉,付丽.松辽盆地三肇凹陷扶杨油层石油运移方式[J].石油勘探与开发,1999,26(3):25-27.
• [7]付广,王有功.源外鼻状构造区油运移输导通道及对成藏的作用:以松辽盆地尚家地区为例[J].地质论评,2008,54(5):646-652.
• [8]付广,张云峰,杜春国.松辽盆地北部岩性油藏形成机制及主控因素[J].石油勘探与开发,2002,29(5):22-24.
• [9]张志松,宋新民,刘卓.封盖油气的盖壳[J].油气地质与采收率,2017,24(6):1-6.
• [10]邱贻博.东营凹陷压力系统与油气成藏[J].特种油气藏,2015,22(3):58-61.
• [11]林景晔,张金友,高微,等.石油成藏的2个物理模型[J].大庆石油地质与开发,2018,37(1):26-30.
• [12]张景廉.油气“倒灌”论质疑[J].岩性油气藏,2009,21(3):122-128.
• [13]李传亮.油气倒灌不可能发生[J].岩性油气藏,2009,21(1):6-10.
• [14]姜振海.不同方向运移油气在断裂附近聚集特征的差异性[J].大庆石油地质与开发,2017,36(54):1-7.
• [15]付广,冯赫青.凹陷区上生下储油侧向运移模式及油聚集:以松辽盆地三肇凹陷扶杨油层为例[J].岩性油气藏,2012,3(24):11-14.
• [16]邹才能,贾承造,赵文智,等.松辽盆地南部岩性—地层油气藏成藏动力和分布规律[J].石油勘探与开发,2005,32(4):125-130.
• [17]梁江平,包丽.三肇凹陷青山口组一段泥岩超压形成与演化过程初探[J].地质科学,2009,44(2):769-776.
• [18]于丹,吕延防,付晓飞,等.松辽盆地北部徐家围子断陷断裂构造特征及对深层天然气的控制作用[J].地质论评,2010,56(2):237-245.
• [19]张雷,卢双舫,张学娟,等.松辽盆地三肇地区扶杨油层油气成藏过程主控因素及成藏模式[J].吉林大学学报(地球科学版),2010,40(3):491-502.
• [20]付广,刘美薇.松辽盆地长10区块扶余油层运移输导通道及对油成藏的控制[J].沉积学报,2010,28(1):201-207.