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灰色系统理论关联分析法在储层评价中的应用——以延吉盆地大砬子组2段为例 被引量:13

Application of grey system theory correlation method in reservoir evaluation:Taking the 2nd Member of Dalazi Formation in Yanji Basin as an example
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摘要 在低孔、低渗背景下寻找相对优质储层,对油气勘探具有重要意义。文中运用灰色理论对储层进行综合评价,以延吉盆地大砬子组2段为例,在前人研究成果的基础上增加了胶结物质量分数和砂地比等参数,对储层进行综合定量评价。研究结果表明,区内发育Ⅱ,Ⅲ类储层。其中:Ⅱ类储层为相对较好的储层,占沉积单元总数的53%,主要分布在朝阳川凹陷;Ⅲ类储层为该区相对较差的储层,占沉积单元总数的47%,主要分布在清茶馆-德新凹陷。 Looking for the relatively high quality reservoir has an importaut significance fi)r oil and gas exploration in the context of low porosity and permeahility. This paper comprehensively evaluates the reserw)ir using the gray theory. On the basis of the previous studies the content of cement and sand to formation parameters are added. Then, taking the 2nd Member of Dalazi Formation iu Yanji Basin as an example, a comprehensive quautitative evaluation of reservoir is conducted. Study shows that in the sludy area, Class 11 and Class Ⅲ reservoirs develop. In them, Class Ⅱ reservoirs are good reservoirs, which account for 53% of the total numbers of sedimenlan' units and mainly locate in Chaoyaugchuang Depression. Class Ⅲreservoirs are relalively poor reserwoirs in Ihis area, which account for 47% of the total numbers of sedimentary units and mainly locate in Qingchagum-Dexin Depv'ession.
出处 《断块油气田》 CAS 2012年第6期714-717,共4页 Fault-Block Oil & Gas Field
基金 国土资源部油气专项"松辽盆地及外围上古生界油气资源战略选区"(2009GYXQ12)
关键词 灰色系统理论关联法 储层评价 关联系数 权系数 延吉盆地 grey system theory correlation method, reservoir evalution: correlation coefl'icient, right c:oefficient: Yaoji Basin
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