| 陈建波,周军良,何康,金宝强,陈华靖.渤海QHD32地区馆陶组成藏认识与评价突破[J].地质找矿论丛,2023,38(3):341-349 |
| 渤海QHD32地区馆陶组成藏认识与评价突破 |
| Breakthrough in ideas and evaluation of oil-gas accumulation in Guantao formation in Bohai QHD32 area |
| 投稿时间：2022-10-09 |
| DOI：10.6053/j.issn.1001-1412.2023.03.010 |
| 中文关键词: 辫状河 富砂地层 低幅构造 成藏模式 滚动评价 馆陶组 渤海海域 |
| 英文关键词:Braided river sand-rich strata low amplitude structure reservoir-forming model rolling evaluation Guantao formation Bohai sea |
| 基金项目:十三五国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”(编号:2016ZX05058001)、中海石油(中国)有限公司科技重大专项“渤海双高油田挖潜关键技术研究”(编号:YXKY-2018-TJ-04)联合资助。 |
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| 中文摘要: |
| 渤海QHD32地区近年一直未有新的油气藏发现,老油田储量接替任务艰巨,馆陶组整体富砂,作为区域油气疏导层,成藏潜力研究对区域滚动评价意义重大。利用测井、录井、地震、分析化验等资料,根据陆相层序地层学、油气成藏地质学等理论,对QHD32地区馆陶组油气成藏条件进行研究并指导滚动评价。研究表明,QHD32地区馆陶组内部不同体系域储盖组合特征存在明显差异,低幅构造背景为馆陶组不同体系域内部油气成藏提供了有利条件,不同体系域内构造幅度、古潜山披覆、断砂匹配及储盖组合等的耦合关系是油气成藏的关键,并基于此建立了馆陶组多因素联合控制的有利成藏模式;滚动评价实践使得QHD32地区老油田实现储量接替,获得了馆陶组内部低阻油藏和常规底水油藏的新发现,丰富了渤海海域富砂地层内部不同类型油气藏精细勘探评价的内容,相关成果可供国内外类似富砂地层内部构造及隐蔽油气藏的勘探评价借鉴。 |
| 英文摘要: |
| Area QHD32 is located in Bohai sea without newly discovered reservoir in recent years. Replacement of reserves in old oil field is now the key problem. Guantao formation is generally rich in sand and is the regional oil-gas diversion layer. This paper deals with study on reservoir potential of the formation to guide the regional rolling evaluation based on data of well log, seissmic survey and chemical analysis and sequential theory. Quite difference of storage-cover combination of varied system realms and low amplitude structure background of the formation provide favorable condition for oil-gas reservoirs in different system realms. Coupling of structural amplitude of different system realm, cover of ancient buried hill, match of sand break and oil-gas accumulation-cover combination is the key to the reservoir. According to the above mentioned multi-factor control reservoir model is built for Guantao formation and rolling evaluation for area QHD32 that realize reserves replacement of old oil field in the area and discovery of low resistance reservoirs and conventional bottom water reservoirs. The above practice in area QHD32 brings more fine exploration evaluations for different types of oil-gas reservoirs within sand-rich strata in Bohai sea and provide reference for evaluation of structure and hidden reservoir in similar sand-rich strata at home and abroad. |
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