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塔里木盆地深部流体活动具有分区性特点.位于盆地西部的塔中隆起西部井下岩石及原油稀土元素分析、二氧化碳的碳同位素分析以及储层流体包裹体测温证实了深部流体的存在.盆地基底以下的深部流体通过深大断裂及火山活动进入盆地内,通过物质和能量交换对碳酸盐岩储层进行溶蚀和交代,使碳酸盐岩储集层的孔隙度、渗透率结构发生改变而使其储集性能发生改变,从而形成深埋改造型的优质碳酸盐岩储层.塔中隆起西部地区沿大断裂及火山活动区发现的萤石矿带是深部流体作用的产物,是塔中45井油田的主要储集层类型.热液白云岩化使英买7井碳酸盐岩储层得到明显改善.深部流体的来源及其活动范围与盆地内深大断裂以及火山活动密切相关,深大断裂以及火山岩发育区可以作为寻找深部流体改造型储层的指针.深部流体改造型碳酸盐岩油气聚集的基本特点是大型断裂及火山通道附近聚集、火山活动之后晚期成藏、受岩性物性控制的隐蔽油气藏.
The deep fluid activities in the Tarim Basin have the characteristics of regionalization.The analysis of REE and REE in the west of Tazhong uplift in the west of the basin and the carbon isotope analysis of carbon dioxide and the temperature measurement of fluid inclusions in the reservoir confirmed the existence of deep fluids. The deep fluid enters the basin through deep faults and volcanic activity, and the carbonate reservoir is dissolved and exchanged through material and energy exchange to change the porosity and permeability structure of the carbonate reservoir Reservoir properties change, resulting in the formation of deep-modified high-quality carbonate reservoirs.Fulian fluorite ore belt along the western margin of the Tazhong uplift along the fault and volcanic activity zone is the product of deep fluid, The main type of reservoirs in the well field, hydrothermal dolomitization, significantly improved carbonate reservoirs in Well Yinglai 7. The source of deep fluids and their range of activities are closely related to the deep faults and volcanic activity in the basin, with deep Large faults and volcanic rock development zones can be used as a guideline for finding the reservoir of the remnant fluid in the deep fluid-modified carbonate rocks. Large breaking point near the channel and volcanic aggregate, volcanic activity after late hydrocarbon, controlled by lithology properties subtle reservoirs.