Title: Contrast Research on Reservoir Characteristics Between Shiquantan and Lenghu 3 in Northern Margin of Qaidam Basin
Abstract: In order to identify the reason that Shiquantan,being contiguous to Lenghu 3,has much less production of oil and gas than Lenghu 3.With the theory and means of sedimentary petrography and reservoir study,the sedimentary facies,rock-mineral composition,rock texture,pore structure,diagenesis and physical property of the reservoir of low Jurassic Xiaomeigou formation between the areas of Shiquantan and Lenghu 3 in northern margin of Qaidam basin have been contrasted and studied.The results show that the reservoir sandstone of Shiquantan was formed in an environment of fan delta plain,which belongs to medium-high porosity-low permeability with high content of rigid detritus,pore cementation,good pore structure characteristics and strong consolidation and corrosion, and exhibits higher oil-bearing property than that of Lenghu 3.As the effects of thickness of sand bodies,tectonic movements and stratigraphic contact relationships,the oil and gas production is less than that in the area of Lenghu 3.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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Cited By Count: 1
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