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.
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.
出处
《东北石油大学学报》
CAS
北大核心
2012年第4期18-23,89,共7页
Journal of Northeast Petroleum University
基金
中国石化西北分公司勘探开发研究院协作项目(KY2011-S-013)
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
Bamai Region
Xiaohaizi formation
reservoir characteristics
control factor
high-energy facies
reservoir space
Tarim basin
