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Study about Reservoir Architectural Effecting on Steam Displacement Oil in Sabei Transition Zone

Author: YangJie
Tutor: MaShiZhong
School: Northeast University of Petroleum
Course: Geological Engineering
Keywords: steam flood sedimentary facies architecture residual oil flow unit
CLC: TE357.44
Type: Master's thesis
Year: 2011
Downloads: 16
Quote: 0
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Abstract


With the oil field has entered into high water-cut period and the theory has been put forward and through years of continuous development, the effect that thin interlayer in a single sand body and the space architecture on injecting material displace oil and remaining oil formation has been more and more taken into account. Now, Sabei transition zone has entered into the high water-cut period with the continuous development of this zone. Because of the zone is thin oil reservoirs. Pre-cycle injecting water, microbial enhance oil recovery, encryption and other technical adjustment, polymer displace oil and other technicals are difficult to radically improve the development effectiveness of this zone. Carried out by steam injection for the new oil displacement, the urgent thing is to understand the effect of the thin interlayer architecture. It provides the geological guidance for further tap the potential.This study plots out and contrasts the chief reservior subtly by monosandbody rank in SⅡoil layer of sabei transition zone stream displacement test zone. The high-resolution stratigraphic framework of the region is established. Through the relations between lithology and electricity, we set up logging microfacies patterns:2 intrafacies and 15 microfacies. Then do monosandbody discernment well by well and layer by layer, and study the distribution, size and direction of single sand body in plane. On the basis of the sedimentary microfacies studying outcomes analysis the key injecting stream time units, analysis the effect on Steam Displacement Oil, analysis the control internal architecture in a single sand body effect on internal field of filtration and the result controlled by it. Forecasting the exploitation result of oil wells on condition that injecting steam. On the basis of the sedimentary microfacies study outcomes study flow unit use storage coefficient and seepage coefficient. Use Parameter "high-inundate’s thickness/sandstone’s thickness" evaluates the thickness degree of oil layer and analysis remaining oil. The outcome of this text provides full geological reference for exploration of units injecting steam.

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CLC: > Industrial Technology > Oil and gas industry > Oil and gas development and mining > Production Engineering > Enhanced oil recovery and maintain reservoir pressure (secondary and tertiary oil recovery ) > Thermal, miscible , Chemical Oil Recovery (EOR EOR ) > Thermal drive oil
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