摘要
注采气能力预测是地下储气库安全运行的核心技术之一,其预测值的准确与否直接影响到上游气田和整个天然气管网的调配生产以及下游用户的用气安全。为此,基于有水气藏型地下储气库多周期注采运行规律,根据地下储气库多周期运行盘库分析方法,利用地下储气库盘库库容参数的定义,通过一系列的数学推导,创建了地下储气库多周期运行注采气能力预测数学模型及预测方法。实例应用结果表明:①该模型预测结果与地下储气库实际运行结果十分接近,预测模型适用性较好、预测精度高;②通过地下储气库多周期运行动态分析并准确把握库容参数未来变化趋势,能够合理预测及评价地下储气库多周期运行注采气能力的变化。目前该方法应用于已建地下储气库注采气能力预测及优化配产配注中,现场应用效果较好,为进一步提高地下储气库运行效率、降低储气成本提供了技术支持。
The prediction of injection and recovery capacity is one of the core techniques in the safe operation of underground gas storage （UGS）, and whether it is accurate or not will directly affect the upstream production of gas fields, the allocation and distribution of the whole natural gas network, and the safe use of gas for downstream users. Therefore, based on the multi-cycle operation law of UGS and the definition of capacity parameters of inventory verification, this paper puts forward mathematical models on the predic tion of multi cycle injection and recovery capacity of UGS. Case histories demonstrate that the predicted results from the said two models are approximate to those in practical operation of UGS, so this prediction method is of good adaptability and high accuracy. In addition, through the dynamic analysis of multi-cycle operation of UGS, we get to know well the changing trend of storage capacity parameters in the future, thereby to predict and assess how the injection and gas recovery capacity is changing in multi cycle oper ation of UGS. More field practices show that this prediction method provides robust technical support for improving the operation ef ficiency of UGS and reducing the cost in gas storage.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2013年第4期96-99,共4页
Natural Gas Industry
基金
中国石油天然气股份有限公司科研项目(编号:油气100303)
关键词
地下储气库
有水气藏
多周期注采
注采气能力
库容参数
预测
调配生产
用气安全
underground gas storage
water-bearing gas reservoir
multi-stage injection and recovery
injection and recovery capaci-ty
storage capacity parameter
prediction
allocation and production
safe use of gas
