| 中伊朗盆地Garmsar区块Qom组沉积微相及储层特征研究 |
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| 引用本文： | 徐国盛,马若龙,张长俊,秦润森.中伊朗盆地Garmsar区块Qom组沉积微相及储层特征研究[J].物探化探计算技术,2008,30(6). |
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| 作者姓名： | 徐国盛 马若龙 张长俊 秦润森 |
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| 作者单位： | 成都理工大学,"油气藏地质及开发工程"国家重点实验室,四川,成都,610059 |
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| 摘 要： | 伊朗Garmsar区块Qom组形成于碳酸盐岩台地沉积环境,岩性以生物屑灰岩、含砂生物屑灰岩、泥晶灰岩为主,是典型的裂缝~孔隙型储层。利用区内野外实测剖面资料和露头岩样测试资料,对Qom组沉积相进行标识及类型划分,并对Qom组沉积微相及其平面展布特征进行分析,指出了该区域开阔台地相~高能红藻滩微相和局限台地相~泻湖夹台内滩微相是研究区储层发育的有利部位。F段中部的粒内溶孔较为发育,而溶缝主要出现在C1、C3亚段,整个Qom组构造微裂缝不甚发育。但储层孔渗条件比较差,属于中~低孔、低渗~特低渗储层,且存在严重的不均一性。为此,从沉积相与储层特征角度研究认为,中伊朗盆地Garmsar区块Qom组油气勘探存在一定的风险。
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| 关 键 词： | 中伊朗盆地 Garmsar区块 碳酸盐岩 Qom组 沉积微相 储层特征 |
Qom group microfacies and reservoir characteristics of garmsar block in iran basin |
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| XU Guo-sheng,MA Ruo-long,ZHANG Chang-jun,et al..Qom group microfacies and reservoir characteristics of garmsar block in iran basin[J].Computing Techniques For Geophysical and Geochemical Exploration,2008,30(6). |
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| Authors: | XU Guo-sheng MA Ruo-long ZHANG Chang-jun |
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| Abstract: | Iran Garmsar block of Qom group formed in the carbonate platform sedimentary environment,with lithology varying from biological debris limestone,limestone sand biological debris to mud crystalline limestone and being mainly the typical crack-porosity reservoirs.The analysis of measured profile of the region field of information and testing data rock outcrop,the deposition of Qom group labelling and classification,microfacies plane and their distribution shows that the region open platform-high-energy red algae Beach Asia and the limitations of the platform of Asia-Taiwan folder within the lagoon beach-block phase is the best reservoir development position.The intragranular dissolve pore developed mostly in the middle of F Fomation,and dissolve fracture mainly grows in C1 and C2 sub-member..However,structural micro-fractures do not develop in Qom Formation and it is poor to the porosity and permeability of middle-low value for the reservoirs with inhomogeneity.So that there are risks to take exploration activity in Qom Formation based on its sedimentary facies and reservoirs. |
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| Keywords: | iran basin garmsar block carbonate qom group microfacies reservoir characteristics |
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