胜利老河口油田桩106井区馆陶组成藏规律研究

doi:10.11743/ogg20060108

Abstract

Abstract:

Sandbodies of Guantao Fm in Zhuang 106 wellblock in Laohekou oilfield are mainly of channel, bank, flood plain and abandoned channel subfacies. The channel sandbodies in the upper Guantao Fm deposited in meandering river environment are the main oil-bearing formations. Migration and accumulation of the Neocene hydrocarbons in the study area, surrounded by sags with rich source rocks, were controlled by faults. The large and small faults were connected into a network. Hydrocarbons alternatively migrated along the fault planes in vertical direction and along the reservoirs in lateral direction, forming a network-blanket migration and accumulation pattern. The rich source rocks, favorable migration and accumulation conditions, as well as good reservoir-cap rock combinations have led to the formation of subtle oil and gas reservoirs dominated by lithologic and lithologic-structural reservoirs. From south to north, the number of oil-bearing layers gradually increases, their depths enlarge and the oil-bearing properties get better.

Key words: channel sand, geologic feature, reservoir type, control factor, Laohekou oilfield

CLC Number:

TE112.31

Tan Maojin, Yang Bangwei, Jia Li, Zou Dejiang. A study of reservoiring pattern of Guantao Fm in Zhuang 106 wellblock in Laohekou oilfield[J]. Oil & Gas Geology, 2006, 27(1): 44-47.

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A study of reservoiring pattern of Guantao Fm in Zhuang 106 wellblock in Laohekou oilfield

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