收稿日期: 2010-03-07
修回日期: 2010-05-27
网络出版日期: 2010-08-10
Distribution Control for Residual Oil in Fluvial Facies Layer
Received date: 2010-03-07
Revised date: 2010-05-27
Online published: 2010-08-10
芦凤明, 倪天禄, 任宝生, 王大兴, 姜玲玲, 刘安源 . 河流相储层剩余油分布控制作用研究[J]. 天然气地球科学, 2010 , 21(4) : 647 -651,682 . DOI: 10.11764/j.issn.1672-1926.2010.04.647
In this paper, we discuss the controlling factors about formation and distribution of remaining oil in the Dj5 well in one block of Gangdong as a case, and summed up the distribution model of remaining oil for tapping the potential of remaining oil to provide the necessary technical support. The result indicated that a complex and uneven distribution of residual oil would be made by non-coupling action between reservoir geology and development engineering. Differences between layers display the higher permeability for multi-channel deposits but the lower permeability for overflow deposits. The production of petroleum from the channel sand body is higher than that from overflow shore sand body, with differential increase and recovery decrease. The residual oil is distributed in the sand reservoirs of thin and poor overflow shore, crevasse channel, abandoned channel sand body parts, etc. The formation of remaining oil during development process includes the well network, seepage separation, non\|coupling action between injection\|production well network and well point. It is difficult to limit the sweep area under no change of well network.
Key words： Residual oil; Heterogeneity; Channel phase; Overflow-shore phase; Development.
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