摘要
在Pittman提供的方法基础上 ,提出了砂岩储层孔隙结构参数“峰点孔喉半径”(r峰)的新概念 ,并明确了其物理意义。研究了砂岩储层孔隙结构与油气运聚关系 ,结果表明 ,汞饱和度小于 2 0 %范围内的参数都与油气二次运移有关 ,而汞饱和度大于 3 0 %的孔隙结构参数是与油气聚集成藏有密切关系。在大庆长垣以西地区的扶杨油层的实际应用表明 ,在齐家—古龙凹陷周边 ,峰点孔喉半径为 0 13~ 1 5 μm的储层是油气成藏的有利地区。
On the basis of the Pittman method,a new concept of pore structure parameter of sand reservoir,namely 'peak radius of pore and throat',was proposed.The physics meanings of the new concept were determined.The relation of pore structure of sand reservoir with hydrocarbon migration and accumulation indicates that the pore structure parameters of mercury saturation below 20 percent is concerned with secondary migration of oil and gas,and those of mercury saturation over 30 percent is concerned with hydrocarbon and reservoir accumulation.The practical application of this method to Fuyang reservoir in the western Daqing Changyuan area showed that the reservoirs with the peak radius of pore and throat in the range of 0.13 to 1.5μm may be the prospective area for oil and gas accumulation around Qijia-Gulong Depression.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2004年第1期44-47,共4页
Acta Petrolei Sinica
基金
国家科技攻关项目 (2 0 0 1BA60 5A 0 8 0 2 )部分成果
关键词
砂岩储层
孔隙结构
峰点孔喉半径
油气二次运移
油气成藏
sandstone reservoir
pore structure
pore and throat peak radius
oil and gas secondary migration
hydrocarbon reservoir formation