Super-fine Modeling of the Inner Point Bar of Meandering River:A Case study on the Fault One of Area I in Eastern Dagang Oilfield

ZOU Tuo，WU Shu-yan，CHEN Xiao-zhi，ZHANG Jin

doi:10.11764/j.issn.1672-1926.2012.06.1163

2012 , Vol. 23 >Issue 6: 1163 - 1169

DOI: https://doi.org/10.11764/j.issn.1672-1926.2012.06.1163

Super-fine Modeling of the Inner Point Bar of Meandering River:A Case study on the Fault One of Area I in Eastern Dagang Oilfield

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1.Exploration and Development Research Institute of Dagang Oilfield Company,CNPC,Tianjin 300280,China；
2.CNOOC Research Institute,Beijing 100027,China

Received date: 2012-01-20

Revised date: 2012-06-08

Online published: 2012-12-10

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Abstract

Point bar is a main development area for the reservoir sandbody of the meandering river sediments,in which the lateral accretion bedding (body) is an important factor to control the distribution of the remaining oil.The establishment of the super-fine modeling of inner point bar is helpful to understand the distribution of the remaining oil,which meets the current requirement of fine reservoir description and secondary development of old oil fields.According to the core analysis,logging and production performance data,this paper took the fault one of area I in eastern Dagang oilfield as an example,and carried out super-fine study on single sandbody,and then dissected the architecture of point bar.Based on the above research,a 3D super-fine model of inner point bar was established.Based on level simulation,screening test and hierarchical forecast,and through multi-point statistical method,a super-fine modeling with size of 2m×2m×0.5m has been established.The model was proved to be in line with the law of architecture of point bar.It provided a reliable reference method for inner architecture modeling of point bar. 

Key words： Point bar of meandering river; Lateral accretion bedding; Super-fine modeling; Multi-point statistical method

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ZOU Tuo，WU Shu-yan，CHEN Xiao-zhi，ZHANG Jin . Super-fine Modeling of the Inner Point Bar of Meandering River:A Case study on the Fault One of Area I in Eastern Dagang Oilfield[J]. Natural Gas Geoscience, 2012 , 23(6) : 1163 -1169 . DOI: 10.11764/j.issn.1672-1926.2012.06.1163

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