| 阿尔及利亚438 区块古生代构造演化及油气成藏特征 |
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| 引用本文： | 姜均伟,曾玉强,胡友良.阿尔及利亚438 区块古生代构造演化及油气成藏特征[J].世界地质,2012,31(1):155-161. |
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| 作者姓名： | 姜均伟 曾玉强 胡友良 |
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| 作者单位： | 中国石油长城钻探工程公司解释研究中心，北京100101 |
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| 摘 要： | 阿尔及利亚438 区块位于阿尔及利亚Oued Mya 盆地北部。利用石油地质理论和测试、测井解释资料，解析阿尔及利亚438 区块古生代地层和油藏特征。分析表明，438 区块所属的Oued Mya 盆地古生代属于克拉通盆地，沉积了奥陶系、志留系和泥盆系多套海相地层，发育有志留系泥页岩和奥陶系页岩两套烃源岩，具备良好的生储盖条件。根据NGS-P1 井的实探资料，裂缝在奥陶系的Hamra 石英砂岩的成藏中起主导作用，应为裂缝型圈闭; 构造和岩性在Dale de M'Kratta 砂岩和泥盆系砂岩的成藏中起主导作用，应为构造--岩性圈闭，推断本区古生代油气成藏模式为断层输导型。
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| 关 键 词： | 阿尔及利亚 438 区块 Oued Mya 盆地 奥陶系 含油气系统 成藏模式 |
Paleozoic tectonic evolution and hydrocarbon accumulation characteristics in Algeria block 438 |
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| JIANG Jun-wei
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ZENG Yu-qiang
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HU You-liang.Paleozoic tectonic evolution and hydrocarbon accumulation characteristics in Algeria block 438[J].World Geology,2012,31(1):155-161. |
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| Authors: | JIANG Jun-wei ZENG Yu-qiang HU You-liang |
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| Institution: | Geosciences Center，CNPC Greatwall Drilling Company，Beijing 100101，China |
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| Abstract: | Algeria block 438 is located in the north of Oued Mya Basin.By petroleum geological theory and testing and well logging data,the authors analyzed the Paleozoic strata and reservoir characteristics of the block.The results show that the Oued Mya Basin was a craton basin in Paleozoic,which deposited several marine strata in Ordovician,Silurian and Devonian.The block developed two source rocks including Silurian mudy shale and Ordovician shale with good source-reservoir-cap condition.On the basis of actual data of Well NGS-P1,fractures played the leading role in the reservoir formation of Hamra quartz sandstone in Ordovician,belonging to fracture trap;while the structure and lithology played the leading role in the reservoir formation of Dale de M’Kratta sandstone and Devonian sandstone,which belong to structural and lithological trap.Therefore,the accumulate model in the studied area was fault transportation type in Paleozoic. |
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| Keywords: | Algeria block 438 Oued Mya Basin Ordovician petroleum system accumulate model |
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