孟祥超,徐洋,韩守华,刘占国,郭华军,邹志文
MENG Xiangchao,XU Yang,HAN Shouhua,LIU Zhanguo,GUO Huajun,ZOU Zhiwen

• 1:中国石油杭州地质研究院

摘要(Abstract)：

为明确准噶尔盆地夏子街组储层次生孔隙类型及成因,对铸体薄片、岩心、扫描电镜能谱、重矿物及试油等资料进行了综合分析。认为夏子街组碎屑岩储层的次生孔隙主要为碱性成岩环境下火山碎屑物质发生水解作用形成的,一般与方沸石和钠长石相伴生,即方沸石或钠长石交代火山碎屑后剩余的充填余孔;沸石类矿物的分布主要受控于物源区母岩类型和沉积相带,浊沸石多与片沸石相伴生,主要发育于中基性母岩区,方沸石、钠长石主要发育于中酸性母岩区;片沸石主要发育于水上沉积相带,方沸石、钠长石主要发育于水下沉积相带;片沸石、浊沸石胶结的碎屑岩储层孔隙发育程度相对较差,优质储层主要发育于克拉玛依—百口泉地区中酸性母岩区的水下扇三角洲前缘相带。
To make clear of the type and origin of the secondary pores in P2x of Junggar Basin,the comprehensive analysis of the slice of the cast body,core,energy spectrum of canning electron microscope,heavy mineral,formation tested data etc is engaged.The secondary pores in P2x detrital reservoir are mainly resulted from the hydrolization of the volcanic clastic materials in alkalinity diagenetic environment and associated with analcite and albite,that are the residual pores after the metasomatism of them with the pyroclast;The distribution of the zeolite-type minerals is mainly controlled by the type of parent rocks and sedimentary facies belts in source region.And moreover the laumontite is commonly associated with heulandite and generally developed in neutral-basic source region,while the analcite and albite are mainly developed in neutral-acidic source region;the heulandite is mainly developed in the above-water sedimentary facies belts,on the contrary,the analcite and albite are mainly developed in die underwater ones;the development of the clastic reservoir pores cemented by the heulandite and laumontite is relatively poorer,the favorable reservoirs is mainly developed in the underwater fan-delta-front facies belts of the neutral-acidic source region in the are from Kelamayi to Baikouquan.

关键词(KeyWords)： 准噶尔盆地;夏子街组;次生孔隙;碱性成岩环境;沸石;钠长石;储层预测
Junggar Basin;Xiazijie Formation;secondary pore;alkaline diagenetic environment;zeolite;albite;reservoir prediction

Abstract:

Keywords:

基金项目(Foundation): 中国石油勘探生产分公司专项(2012ZX0716-02)

作者(Author): 孟祥超,徐洋,韩守华,刘占国,郭华军,邹志文
MENG Xiangchao,XU Yang,HAN Shouhua,LIU Zhanguo,GUO Huajun,ZOU Zhiwen

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