Remaining Oil Distribution and Its Potential Exploitation Measures in Block Zhuang 74 of Wuhaozhuang Oilfield, Shandong Province

Geoscience ›› 2005, Vol. 19 ›› Issue (3): 441-448.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Remaining Oil Distribution and Its Potential Exploitation Measures in Block Zhuang 74 of Wuhaozhuang Oilfield, Shandong Province

YUE Da-li1, WU Sheng-he¹, LIN Cheng-yan², LI Yan³

1Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing102249, China;
2Faculty of Natural Resources and Information Technology, China University of Petroleum, Dongying, Shandong257061, China;
3Research Center, CNOOC, Beijing100027, China

Received:2005-03-15 Revised:2005-05-12 Online:2005-03-20 Published:2005-03-20

Abstract

Abstract:

The development of extra-low permeability reservoir plays an important role in oil industry. Based on core and well logging data, the distal turbidite fan of Block Zhuang74 in Wuhaozhuang Oilfield can be divided into three subfacies, that is, root fan, middle fan and fan edge.In middle fan, five microfacies can be recognized such as braided channel, inter-channel, channel edge, front edge of middle fan and lobe.Internal, interlayer and plane heterogeneities are clarified, then the types and combined modes of micro-tectonics are summarized.On the basis of the analyses of dynamic and static data, the distribution and controlling factors of the remaining oil in extra-low permeability reservoir are revealed, including microfacies, reservoir heterogeneity, microtectonics and well network condition and so on.The enrichment regions of the remaining oil are predicted and potential exploitation measures are proposed, then the increments of remaining accessible reserves and the enhancement of recovery can be achieved.

Key words: remaining oil, extra-low permeability reservoir, distal turbidite fan, sedimentary microfacies, micro-tectonics, reservoir heterogeneity, Wuhaozhuang Oilfield

CLC Number:

TE34

YUE Da-li, WU Sheng-he, LIN Cheng-yan, LI Yan. Remaining Oil Distribution and Its Potential Exploitation Measures in Block Zhuang 74 of Wuhaozhuang Oilfield, Shandong Province[J]. Geoscience, 2005, 19(3): 441-448.

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Remaining Oil Distribution and Its Potential Exploitation Measures in Block Zhuang 74 of Wuhaozhuang Oilfield, Shandong Province

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