| 长岭断陷东部下白垩统火山岩储层特征及油气勘探潜力 |
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| 引用本文： | 姜慧超,雷 敏,刘汝强.长岭断陷东部下白垩统火山岩储层特征及油气勘探潜力[J].岩石矿物学杂志,2009,28(1):69-77. |
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| 作者姓名： | 姜慧超 雷 敏 刘汝强 |
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| 作者单位： | 1. 同济大学,海洋与地球科学学院,上海,200092;中石化胜利油田有限公司,山东,东营,257015
2. 中石化胜利油田有限公司,山东,东营,257015 |
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| 摘 要： | 火山岩是长岭断陷东部深层的主要勘探目标,但火山岩岩相、岩性变化快,储层非均质性强,有利储集相带预测难度大.根据该区最近火山岩研究成果,探讨了火山岩储层特征、分布规律及油气成藏主控因素,并分析其油气勘探潜力.长岭断陷深层火山岩主要沿深大断裂呈带状分布,在垂向上则表现为多期次喷发序列的叠置.火山岩主要发育爆发相、溢流相、火山沉积相和次火山岩相4种火山岩岩相及9种亚相,其中以爆发相的热碎屑流亚相、溢流相上部亚相为主.爆发相凝灰岩和溢流相流纹岩储层气孔、溶孔和裂缝发育,储集物性最好.长岭断陷深层勘探程度低,油气资源丰富, 火山岩分布面积大,且油气成藏条件好,具有很大的油气勘探潜力.
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| 关 键 词： | 火山岩 储集层 波阻抗反演 勘探潜力 长岭断陷 |
Volcanic reservoir characteristics and hydrocarbon exploration potential of Changling depression |
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| JIANG Hui-chao,LEI Min and LIU Ru-qiang.Volcanic reservoir characteristics and hydrocarbon exploration potential of Changling depression[J].Acta Petrologica Et Mineralogica,2009,28(1):69-77. |
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| Authors: | JIANG Hui-chao LEI Min and LIU Ru-qiang |
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| Institution: | School of Ocean and Earth Science, Tongji University, Shanghai 200092, China; Shengli Oilfield Co. Ltd., SINOPEC, Dongying 257015, China;Shengli Oilfield Co. Ltd., SINOPEC, Dongying 257015, China;Shengli Oilfield Co. Ltd., SINOPEC, Dongying 257015, China |
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| Abstract: | Volcanic rocks constitute the main deep exploration target in eastern Changling depression. Drastic changes in volcanic lithofacies and lithology as well as strong reservoir heterogeneity make it difficult to predict favorable reservoir belts. Based on volcanic exploration results in the depression, the authors studied the volcanic features, distribution, main controlling factors for the formation of reservoirs and the exploration potential. The volcanic rocks in the depression are mainly distributed along big deep faults and superimposed by many times of volcanic eruption in the vertical direction. There exist four kinds of volcanic lithofacies and nine sorts of subfacies. Explosive tuff and overflow rhyorite reservoirs have many gas pores, solution pores and fractures, and possess the best physical properties. The deep formation in the depression has experienced a low exploration degree but possesses abundant hydrocarbon resources, and volcanic rocks are distributed extensively there and have good reservoir-forming conditions, suggesting a very promising hydrocarbon exploration potential. |
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| Keywords: | volcanic rocks reservoir seismic impedance inversion exploration potential Changling depression |
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