| 巴麦地区石炭系小海子组储层特征及控制因素分析 |
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| 作者姓名： | 范筱聪 孟祥豪 徐梅桂 刘迪 李映涛 |
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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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| 基金项目： | 中国石化西北分公司勘探开发研究院协作项目(KY2011-S-013) |
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| 摘 要： | 在岩心观察、铸体薄片、扫描电镜资料分析的基础上,结合孔隙度、渗透率等物性资料,分析巴麦地区石炭系小海子组储层特征及控制因素.结果表明:该组的储集层岩石类型中,白云岩储层物性较灰岩好,而颗粒灰(云)岩物性也较非颗粒灰(云)岩好;储集空间类型以粒间溶孔、粒内溶孔和晶间溶孔为主;沉积相带、成岩作用及构造作用等是影响研究区储层物性的重要条件,其中高能的台地滩相储集岩是有利储层的发育地带,大气淡水暴露溶蚀作用和白云岩化作用改善了储集空间,构造破裂作用所产生的裂缝使储层物性得到进一步改善.该研究对认识巴麦地区小海子组储层特征及主控因素有参考意义.
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| 关 键 词： | 巴麦地区 小海子组 储层特征 控制因素 高能相带 储集空间 塔里木盆地 |
Reservoir characteristics of carboniferous Xiaohaizi formation in Bamai region and their main control factors |
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| Authors: | FAN Xiao-cong MENG Xiang-hao XU Mei-gui LIU Di LI Ying-tao |
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| Institution: | (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan 610059,China) |
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| Abstract: | The research on the reservoir characteristics and control factor of the Xiaohaizi Formation of Carboniferous in Bamai was carried out on the basis of analyzing the data on core observation,cast thin section,scanning electron microscope and combined with the area porosity,permeability.Research shows that the properties of limestone is better than the dolomite and the properties of grainstone is better than the non-granular limestone.The main reservoir pore types include intergranular,intragranular dissolution and intercrystalline solution pores.The sedimentary facies,lithogenesis and tectonic process are main factors affecting reservoir properties in this area.Among them,the dissolution and dolomitization are favorable to improve the reservoir space,and the fractures produced by tectonism also improve the filtration of the reservoirs.The study has some significance for further research on reservoir characteristics of carboniferous Xiaohaizi Formation and their main control factor. |
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| Keywords: | Bamai Region Xiaohaizi formation reservoir characteristics control factor high-energy facies reservoir space Tarim basin |
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