夏青
XIA Qing

• 1:大庆油田有限责任公司测试技术服务分公司

摘要(Abstract)：

新肇油田古628区块葡萄花油层为典型的低含油饱和度油藏,油水同层发育,油水分布关系复杂,油水分布控制因素不明确。在厘清本区油水分布规律基础上,从构造、沉积、岩性、物性和微观孔隙结构5个方面展开了主控因素分析。结果表明:研究区内的断裂密集带控制着油水分布的宏观格局,油源断层与优质储层的最佳匹配构成油气运移的主要输导通道,在反向断层的下盘和顺向断层的上盘构成最佳油气富集区;在同一构造圈闭内部,沉积微相对油气分布具有明显控制作用;油层、油水同层主要分布在水下分流河道和主体席状砂相带中;差油层、水层、干层主要分布在非主体席状砂相带中;微观孔隙结构控制了研究区油水分布规律和产出性质,是重要的控制因素。
Putaohua reservoirs in Block Gu628 of Xinzhao Oilfield is the typical low-saturation oil reservoirs, which are characterized by the well-developed oil-water layer, complex relationship and unclear controlling factors of the oil-water distribution. Therefore, the five aspects include the structure, sedimentation, lithology, physical property and microscopic pore structure were analyzed on the basis of identifying the oil-water distribution laws in this block. The results show that the fault concentrated belts in the study block control the macro-pattern of the oil-water distribution, the best match between the oil-source fault and high-quality reservoir constitutes the main oil-gas migration pathway, the foot wall of the reverse fault and the hanging wall of the consequent fault become the best enriched area of oil and gas. The sedimentary micro-facies has the obvious control effects on the oil-gas distribution within the same structural trap; the oil layer and oil-water layer are mainly distributed in the underwater distributary channel and the main sheet-sand facies belt; the poor oil layer, water layer and dry layer are mainly distributed in the non-main sheet-sand facies belt; the microscopic pore structure controls the oil-water distribution laws and production properties as an important controlling factor.

关键词(KeyWords)： 新肇油田;葡萄花油层;低含油饱和度油藏;油水分布规律;主控因素;微观孔隙结构
Xinzhao Oilfield;Putaohua oil layer;low-oil saturation oil reservoir;oil-water distribution law;main controlling factors;microscopic pore structure

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项“松辽盆地北部岩性油气藏区带评价与目标优选”(2017zx05001-002-006)

作者(Author): 夏青
XIA Qing

DOI: 10.19597/j.issn.1000-3754.201912024

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