濮城油田西沙二上2+3油藏项目针对油藏综合含水高,隔层小,剩余油分布零散;基于高分辨层序地层格架,建立了精细地质模型,并对隔夹层分布、沉积微相及沉积模式进行研究;通过数值模拟及油藏工程方法,确定了剩余油分布规律;依据剩余油在宏观和微观上的分布比较零散的特点,立足井组进行挖潜;依据隔夹层研究成果,利用分层手段强化二、三类层的动用,对应油井实施差异性提液与卡堵水相结合,提高油藏层间动用程度。

It is difficult to explore the buried hill reservoir in Jizhong Depression because of the strong heterogeneity of carbonate reservoirs and the complex hydrocarbon distribution. The theories and methods of petroleum geology, geophysics and organic geochemistry, combined with exploration practice, were applied to systematically study the charac-teristics of buried hill reservoir in Jizhong Depression. The result shows that the hydrocarbon in buried hill mainly came from the source rocks of Eogene and Permo-Carboniferous system. The reservoir is composed of Middle-Upper Praterozoic and Lower Paleozoic carbonate rocks, and pores, caves and fractures are the main reservoir spaces. The cap rocks are composed of argillaceous rocks of Eogene, coal measure strata of Permo-Carboniferous system and interlayers of inner buried hills, and there developed eight sets of reservoir-cap rocks assemblage. The faults and unconformities are the main hydrocarbon migration pathways of buried hills. The buried hill reservoirs can be divided into hilltop type, hillside type and inner buried hill type. The buried hill reservoirs are mainly located in eastern depressed areas, and distributed close to fractural belts near source rocks, forming the complex hydrocarbon accumulation belts. These research results will be helpful for the disclosure of hydrocarbon accumulation rules, and provide guidance for the target evaluation and favorable zone selection.

针对东濮桥口南-徐集地区三维地震资料的特点及本区块的地质要求,制定处理流程,应用能量均衡、面元均化、三维道内插、三维DMO叠加及三维一步法偏移等技术方法,研究解决因为不同年代、不同方法、不同参数所采集的地震数据在连片处理时存在的问题,精细处理三维连片资料,满足构造解释精度的要求,对进一步落实该区构造和增储上产具有重要的作用.