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Study of the Upper Paleozoic Reservoir in Jingbian Gas Field

Author: KangLiWei
Tutor: SunWei
School: Northwestern University
Course: Mineralogy,petrology, Mineral Deposit Geology
Keywords: The Jingbian ancient gas reservoir Low porosity and low permeability Stratigraphic correlation Lithology Reservoir evaluation
CLC: P618.13
Type: Master's thesis
Year: 2011
Downloads: 41
Quote: 0
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Abstract


Jingbian gas field belong to Sulige basin, and the north of Jingbian gas field in the middle of the Sanbei slope. He8 and Shanl is active exploration area which is belong to the upper Paleozoic in this area, so He8 and Shan 1 is facal point to develop the gas field. This area magor is lithologic confining, repertedly sediment sandstone, contiguous distribution, and strong heterogeneity, low connectivity, so that is low permeability and tight sandstone gas reservoir. Study the tendency and the laws of Paleozoic from environment of aggradation, date of artesian well and well longing and so on. We can find the reason which control enrichment of the gas. Than we can put out a scientific evaluation to the upper Paleozoic reservoir in Jingbian gao field.Studies have shown that He8 and Shanl is braided river facies and delta facies,where is belong to Jingbian gas field. That is lelonging to deep lacustrine sediments. The entire gas field is low-durchgriff and low extent of porosity sandstone reservoir. From the sand layer thickness, extent of porosity and durchgriff, and the date of mercury intrusion, divide the reservoir into 4 portions. He8 typeⅠandⅡ,Shanl typeⅠandⅡ,is advantageous area; He8 typeⅡandⅢ,is high potential area; He8 typeⅢandⅣ,Shanl typeⅢandⅣis prospect area.

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