松辽盆地朝长地区葡萄花油层成藏模式及控制因素

发布时间：2018-01-15 08:03

本文关键词：松辽盆地朝长地区葡萄花油层成藏模式及控制因素　出处：《石油与天然气地质》2017年05期 　论文类型：期刊论文

【摘要】：针对松辽盆地朝长地区葡萄花油层油气成藏模式及主控因素不清的难题,利用烃源岩评价、油源对比、疏导体系、油水关系、油藏类型以及油藏控制因素分析等技术方法,对葡萄花油层油气来源、成藏特征、主控因素和成藏模式进行了研究。结果表明:研究区内葡萄花油层原油主要来自西部的三肇凹陷和东部朝阳沟阶地局部地区青一段,还有一部分来自下伏扶杨油层;区内断裂可以分为油源断裂、疏导断裂和封闭断裂,其中疏导断裂在研究区中广泛分布;西北砂体主要为内前缘河道砂,东南部主要为外前缘席状砂,西北部砂体的储集性和物性好于东南部。综合分析认为,研究区油气成藏主要受烃源岩、油源断裂和砂体共同控制,成藏模式主要有"近源成藏"模式和"上倾成藏"模式两种。对朝长地区葡萄花油层油气成藏富集规律的研究,对下一步葡萄花油层确定勘探目标和储量预测具有指导意义。
[Abstract]:In view of the difficult problem of hydrocarbon accumulation model and main controlling factors in Chaohua reservoir in Chaochang area of Songliao Basin, hydrocarbon source rock evaluation, oil source correlation, hydrophobic system and oil-water relationship are used. The oil and gas source and reservoir forming characteristics of Putaohua reservoir are analyzed by reservoir type and reservoir control factor analysis. The main controlling factors and reservoir forming model were studied. The results show that the crude oil of the Grape flower reservoir in the study area mainly comes from Sanzhao depression in the west and Qingyi section of the eastern Chaoyang gully terrace. Some of them come from the lower Fu Fu Yang reservoir. The faults in the area can be divided into oil-source faults, hydrophobic faults and closed faults, among which the hydrophobic faults are widely distributed in the study area. The northwest sand body is mainly inner front channel sand and the southeast is outer front sheet sand. The reservoir and physical properties of the northwest sand body are better than that of the southeast. The comprehensive analysis shows that the hydrocarbon reservoir is the main source rock in the study area. The oil-source faults and sand bodies are controlled together, and the reservoir forming models are mainly "near-source reservoir formation" model and "up-dip reservoir formation" model. Oil and gas accumulation law of Grape flower reservoir in Chaochang area is studied. It is of guiding significance to determine the exploration target and reserve prediction for the next step of the Grape flower reservoir.
【作者单位】：中国地质大学(北京)能源学院;中国地质图书馆;
【基金】：大庆油田有限责任公司科技项目(DQYT-0510003-2011-JS-331)
【分类号】：P618.13
【正文快照】： 松辽盆地朝长(朝阳沟—长春岭)地区地理上位于黑龙江省肇源、肇州和肇东三(市)县相接壤的部位,西部与肇州、肇源油田相连,北部与榆树林油田相邻[1-3]。本次研究区主体在朝阳沟阶地上,还包括三肇凹陷南部区域,勘探面积1 450 km2。近年来朝长地区评价重点层位为扶余油层[4-5],但

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