Exploration prospects of the Carboniferous and Permian in the southern North China
-
摘要: 华北南部地区虽然经历了复杂构造—沉积演化,但通过对区内石炭—二叠含煤层系埋藏结构和生烃演化类型的分析认为,该区石炭—二叠系具备较好的烃源物质基础。其中,中构造层(三叠系、侏罗—白垩系)的原始沉积厚度相对较小、新生代沉积厚度较大的3层埋藏结构和晚期生烃型的部分凹陷,具备喜山期"二次生烃"形成煤成气的潜力,有较好的勘探前景。结合该区石炭—二叠含煤层系煤成气成藏特点提出了评价原则,优选了有利的勘探靶区并提出了勘探部署建议。Abstract: Based on the study of the covered structures and analysis of the hydrocarbon evolution types in coal-bearing strata of southern North China, it was showed that there was good hydrocarbon source in the Carboniferous-Permian sequence. The thickness of original middle layer in coal-bearing strata, the Triassic and Jurassic-Cretaceous, was relatively thin. Some Neogene sags showed favorable potential such as three covered structures and late hydrocarbon generation. The coal-forming gas accumulation could be formed in the secondary hydrocarbon generation of Himalayan stage, so it was showed the good exploration prospects in southern North China. Based on the coal-forming gas accumulation features, the evaluation principle was proposed and some gainful exploration targets were evaluated.
-
Key words:
- exploration potential, Carboniferous-Permian /
- southern North China /
-
[1] 徐汉林,赵宗举,吕福亮,等.南华北地区的构造演化与含油气性[J].大地构造与成矿学,2004,28(4):450-463. [2] 徐汉林,赵宗举,杨以宁,等.南华北地区的构造格局及构造式样[J].地球学报,2003,24(1):27-33. [3] 蒋礼宏,刘太成,刘小平.南华北盆地黄口凹陷地震解释及构造特征分析[J].小型油气田,2004,9(2):21-24. [4] 全裕科,柳广弟,丁文龙.南华北盆地倪丘集凹陷油气显示特征及找油意义[J].石油实验地质,2006,28(4):370-379. [5] 张鹏,王良书,刘绍文,等.南华北盆地群岩石圈热-流变结构[J].高校地质学报,2006,12(4):530-536. [6] 熊保贤,刘和甫.南华北盆地与东秦岭-大别造山带的耦合关系[J].地学前缘,2000,7(3):152. [7] 谢其锋,周立发,刘新华,等.南华北盆地周口坳陷南12井油藏成藏条件分析[J].石油地质与工程,2008,22(5):14-17. [8] 饶丹,全书进.南华北盆地周口坳陷周参10井低产油流剖析[J].石油实验地质,2005,27(6):612-618. [9] 徐汉林,赵宗举,杨以宁,等.南华北盆地黄口凹陷构造演化与油气勘探方向[J].中国矿业大学学报,2003,32(5):590-595. [10] 刘小平,刘太成,蒋礼宏,等.南华北盆地黄口凹陷构造形成演化及油气勘探前景[J].石油勘探与开发,2000,27(5):8-11. -
计量
- 文章访问数: 3068
- HTML全文浏览量: 67
- PDF下载量: 876
- 被引次数: 0
下载:
苏公网安备32021102000780号