Secondary oil migration distance and hydrocarbon accumulation in carbonate rocks

被引：0
|
作者：
Zhou B. [1 ]
Jin Z. [1 ]
Yun J. [1 ]
Bai G. [2 ]
机构：
[1] Exploration & Production Research Institute, SINOPEC, Beijing
[2] China University of Petroleum (Beijing), Beijing
来源：
Oil and Gas Geology | 2016年 / 37卷 / 04期
关键词：
Carbonate rock; Migration distance; Reservoir accumulation; Secondary migration;
D O I：
10.11743/ogg20160401
中图分类号：
学科分类号：
摘要：
In this paper, we statistically analyzed the secondary hydrocarbon migration distances of 229 large carbonate oil and gas fields within the major petroliferous basins in the world. It is found that the secondary hydrocarbon migration distances and number of oil/gas fields within carbonate migration systesms show no exponential decay relationship as the clastic migration systems. Carbonate reservoirs are generally proximal to source rocks. However, for reservoirs distal to source rocks, the migration distance has no obvious control on the probability of hydrocarbon accumulation. For reservoirs distal to source rocks, oil and gas distribution are generally controlled by the distribution pattern of faults and the distribution range of carbonate reservoirs of vuggy-cavernous type. Given sufficient hydrocarbon supply, the possibility of hydrocarbon accumulation remains almost consistent with such a range. Therefore, even at a long distance, as long as it is within the distribution range of faults and reservoir rocks of the vuggy-cavernous type, the probability of hydrocarbon accumulation can be relatively high. © 2016, Editorial Office of Oil and Gas Geology. All right reserved.
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页码：457 / 463
页数：6
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