石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (4): 307-312.doi: 10.11743/ogg19980408

• 论文 • 上一篇    下一篇

烃源岩生烃潜力的恢复探讨──以鄂尔多斯盆地下奥陶统碳酸盐岩为例

夏新宇, 洪峰, 赵林   

  1. 石油勘探开发科学研究院, 北京100083
  • 收稿日期:1998-03-23 出版日期:1998-12-25 发布日期:2012-01-18

RESTORATION ON GENERATING HYDROCARBON POTENTIALITY OF SOURCE ROCKS:A CASE OF LOWER ORDOVICIAN CARBONATES IN ORDOIS BASIN

Xia Xinyu, Hong Feng, Zhao Lin   

  1. Scientific Research Institite of Petroleum Exploration and Development, Beijing
  • Received:1998-03-23 Online:1998-12-25 Published:2012-01-18

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摘要：

烃源岩生烃潜力的不同恢复方法(热模拟实验法、元素法、降解率法、动力学法)都限于干酪根降解生烃理论的范畴。原始有机质类型较好、烃产物平均H/C较低以及高成熟烃源岩中间生成的液态烃排出较完全时,计算出的有机碳恢复系数要比相反的情况大很多。生烃量的计算是否准确依赖于上述条件确定得是否合理。生烃潜力恢复结果表明鄂尔多斯盆地下奥陶统碳酸盐岩是较差的烃源岩。

关键词: 烃源岩, 碳酸盐岩, 生烃潜力, 有机碳, 恢复, 鄂尔多斯盆地

Abstract:

Different restoring methods of hydrocarbon generation potential of source rock,including simulation method,element balance method,degradation ratio method and dynamic method are discussed.These methods are all restricted to the realm of hydrcarbon generation,theory of kerogen degradation.The accuracy of restoration results depend sensitively on the initial organic matter type,mean hydrogen/carbon ratio of hydrocarbon products and oil expulsion efficency from high mature source rock.The restoration coefficients of total organic carbon in different condition all have maximum values.Restoration results show that Lower Ordovician carbonate in the Ordos Basin is poor source rock.