辫状河油藏层内非均质性及其对剩余油分布的影响

doi:10.13686/j.cnki.dzyzy.2022.06.008

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Abstract As one of the major reservoir types in China, braided river reservoir has generally entered the high water-cut stage, and its efficient development is seriously restricted by the in-layer heterogeneity. Based on the core and well logging information of Guantao Formation in Kongdian Oilfield, the in-layer heterogeneity of braided river reservoir and its influence on remaining oil distribution are analyzed combined with the production and development data. The results show that the reservoir in the area is formed by braided channel and channel bar. The braided channel shows normal rhythm, with great physical difference and thin interlayer; while the channel bar is dominated by composite normal rhythm, with medium physical difference and thick interlayer. There is much remaining oil controlled by the interlayer of production well corresponding to channel bar. The remaining oil enriched area is easily formed in the upper interlayer of vertical deposit body, which has great developing potential.

Key words： braided river reservoir intra-layer heterogeneity remaining oil Guantao Formation Kongdian Oilfield

Received: 31 August 2021

PACS:

P618.13

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	Articles by authors
	WANG Chun-wei
	DONG You-huan
	YANG Yong
	YANG Xiang-dong
	SUN Xin

Cite this article:

WANG Chun-wei,DONG You-huan,YANG Yong等. HETEROGENEITY IN BRAIDED RIVER RESERVOIR AND ITS INFLUENCE ON REMAINING OIL DISTRIBUTION[J]. GEOLOGY AND RESOURCES, 2022, 31(6): 770-775.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2022.06.008 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2022/V31/I6/770

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