IMECH-IR  > 环境力学重点实验室(2009-2011)
Alternative TitleA balance equation of gas materials with recharge capacity and their performance prediction
Source Publication石油学报
Other AbstractThe traditional method of material balance takes a gas reservoir as a container,while the heterogeneity and seepage flow resistance of strata are commonly neglected.Therefore,the results generally tend to be optimistic when the binomial deliverability and material balance equations are employed to predict the early performance of heterogeneous low-permeability gas reservoirs.Aiming at solving this issue,we assumed that a gas reservoir could be divided into two interconnected and relatively homogeneous blocks by a low-permeability zone.According to the mass conservation law,a balance equation of gas materials with recharge capacity and a dynamic prediction model for their performance were established using the semi-permeable wall model.The proposed model has considered the regional heterogeneity and flow resistance of gas reservoirs,making the material balance model much closer to practical cases and capable of easily and quickly predicting a trend of dynamic variations in gas wells.In addition,varying rules of pressure-time and rate-time relationships in these two blocks could be revealed in this model.Data calculated from real cases indicated that the proposed model could improve the prediction result of the early performance and various indicators derived from the model were close to the production practice.Therefore,this study is of instructive significance in rational and effective development of similar gas reservoirs.
Keyword低渗透气藏 物质平衡 半透壁模型 非均衡开采 动态预测
Subject Area力学
Indexed ByEI
Funding Organization国家科技重大专项(2008ZX05013);石油科技中青年创新基金(2009-A-17-15)项目联合资助
Document Type期刊论文
Corresponding Author孙贺东
Recommended Citation
GB/T 7714
孙贺东. 具有补给的气藏物质平衡方程及动态预测[J]. 石油学报,2011,32(4):683-686.
APA 孙贺东.(2011).具有补给的气藏物质平衡方程及动态预测.石油学报,32(4),683-686.
MLA 孙贺东."具有补给的气藏物质平衡方程及动态预测".石油学报 32.4(2011):683-686.
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