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Reservoir Prediction Study in JZ Oil & Gas Field

Author: ZhuGaoMing
Tutor: JinQiang;WangGuoDong
School: China University of Petroleum
Course: Geological Engineering
Keywords: oil and gas field reservoir prediction
CLC: P618.13
Type: Master's thesis
Year: 2010
Downloads: 41
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Abstract


JZ Shahejie oil and gas field is a sandstone reservoir, drilled 8 wells, industrial oil and gas flow were to form a certain amount of oil and gas geologic reserves. To better understand the geological condition of oil fields for oil and gas field in preparation for the development of programm for the subject of this research work. The collection of core , seismic, logging, production data and other information, the use of coring and well logging data of the core corresponds to the micro-relations, to carry out logging of calibration, to determine the small wells Shahejie layer phase of the single well. the use of three-dimensional seismic data analysis of seismic attributes (profiles and sections), combined with seismic inversion technology Shahejie Group analysis of seismic facies reservoirs. Comprehensive logging and seismic facies analysis of the results, divided by a small layer of the results of comparison, the small sub-layer sedimentary microfacies study of sedimentary facies in the study based on analysis of sub-layer of sand body distribution and distribution of reservoir properties.Shahejie Group of stratigraphic sequence, depositional facies, reservoir and reservoir studies, the formation of the following findings: In the field range for Shasan oldest Cenozoic sedimentary strata, angular unconformity overlapped deposition at Pacific sector of fire into a metamorphic rock on top. Sand in the bottom three to compensate for the characteristics of deposition, the scope of the field at the end of deposition has been razed, a Shasan state-wide coverage; Shahejie in relatively flat terrain of the ancient erosion conditions, the direct deposition ES31 above in the next Ultraweak, lithology stable block with a high degree of connectivity sandbody horizontal, vertical on the sand body was divided mudstone. Sand II, III Sandbody paragraph to the distribution regularity of strong vertical and horizontal. Sand second and third period of deposition of the complexity of source direction. As early as the mid-Shasan more prominent to the source. The late Lord for South, North, West tripartite, coarse crumbs source material and the role of the South’s largest, small crumbs of Western source material play a leading role; Shahejie similar depositional material supply Shasan late, but the West by a significant energy source, source resulted in convergence of distance, near the source of phase with the source facies and staggered away, the situation is very complicated. Sand the second and third paragraphs break anticline oil and gas reservoirs for layered reservoirs, reservoirs with a high degree of connectivity of horizontal, vertical separation of the characteristics of a high degree.

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Fuel deposits > Oil, natural gas
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