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大牛地气田属于鄂尔多斯盆地,是中国石油化工股份有限公司华北分公司开发地区之一,目前已建成年产30亿立方米产能,从2005年开发多层合采井以来,多层合采井井数已占总井数的55%以上,但对该区块多层合采井的产出影响因素仍在讨论中。通过在生产测井中的不同层位产出出现的变化,推导出必是层间某些因素影响层间产出,进而考虑这些因素是否对层间最终采收率进行了影响,出于以上考虑,特作此次研究分析层间采收率的影响因素。本次研究从ECLIPSE软件在理论模型中的应用中进行因素考察,分别进行了采气速度、渗透率、不同打开时机、有效厚度等因素对层间产出变化的模拟,并对多因素影响权重大小进行了研究。
Daniudi gas field belongs to the Ordos Basin and is one of the developed regions of North China Branch of China Petroleum & Chemical Corporation. At present, the annual output of 3 billion cubic meters has been completed. Since the development of the multi-layer well in 2005, the multi- The number of wells has accounted for more than 55% of the total wells, but the factors that affect the output of the multi-layer well in this block are still under discussion. Based on the changes in the output of different horizon in the production logging, it is deduced that some factors must affect the inter-layer output and then consider whether these factors affect the ultimate recovery ratio. For the above Considered, specially made for this study to analyze the influencing factors of inter-layer oil recovery. In this study, the factors of the ECLIPSE software application in the theoretical model were investigated, and the simulation of the change of output between layers was carried out, including the gas velocity, permeability, different opening timing, effective thickness and other factors, and the multi-factor impact weight The size was studied.