新疆塔河油田石炭系卡拉沙依组储层特征及油气分布  

The characteristics and distribution of the hydrocarbon reservoirs in the Carboniferous Karashayi Formation, Tahe Oil Field, Xinjiang

作　　者：宋杉林[1] 张春冬[1] 王琪[1] 

机构地区：[1]中国石化新星公司西北石油局规划设计研究院,新疆乌鲁木齐830011

出　　处：《沉积与特提斯地质》2002年第2期53-57,共5页Sedimentary Geology and Tethyan Geology

摘　　要：塔河油田石炭系的油藏主要含油气层段为卡拉沙依组砂泥岩互层段 ,该段油气层具有埋藏深 ,单层厚度小 ,横向变化大和连通性差的特点。通过对比 ,将石炭系卡拉沙依组砂泥岩段自上而下划分为 5个油组 ,笔者从储层的沉积特征、岩石学特征及物性特征入手 ,揭示了油藏储层的空间展布规律。The Carboniferous hydrocarbon reservoirs in the Tahe Oil Field, Xinjiang are arranged into the interbedded sandstone and mudstone horizons in the Karashayi Formation. The hydrocarbon reservoirs are characterized by deep burial, small thickness of individual beds, and laterally discontinuous and disconnected strata. The sandstone and mudstone horizons in the Carboniferous Karashayi Formation may be divided, from top to bottom, into five oil formations, which have recorded a complete transgression regression cycle: the Ⅴ and Ⅳ oil formations were developed during the early transgressions, followed by Ⅲ, Ⅰ and Ⅱ oil formations during the later regressions.The spatial distribution of the oil reservoirs indicates that the oil and gas accumulations are mostly controlled by faults and structural lithologic traps and concentrated in the structural highs and composite structural lithologic traps below unconformities.

关 键 词：新疆 塔河油田 石炭系 卡拉沙依组 储层特征 油气分布 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]