非常规气藏产量递减规律与评价研究  

RATE- DECLINE ANALYSIS AND ESTIMATE FOR UNCONVENTIONAL RESERVOIRS

作　　者：詹泽东[1,2,3] 张岩[3] 段永明[3] 王启颖[3] 邓美洲[3] 

机构地区：[1]成都理工大学地球物理学院 [2]成都理工大学四川省数学地质重点实验室 [3]中国石油化工股份有限公司西南油气分公司

出　　处：《钻采工艺》2016年第1期76-78,9,共3页Drilling & Production Technology

基　　金：丁山地区页岩气开发早期气藏工程研究(14KF-28);新场气田须五段气藏特征研究(GJ-332-1426)

摘　　要：针对传统递减模型在非常规气藏产量递减规律与评价研究中的局限性,在非常规气藏开发实践的基础上,通过统计分析提出了非常规气藏产量递减规律经验公式,进一步分析得出非常规气藏产量变化具有"三参两极一相关"的模型特征。将该方法应用于气藏开发,不仅可以有效地开展产量变化趋势预测与可采储量评价,而且可以用于气藏开发风险评估。气藏开发实践表明,该方法具有较强的可靠性、有效性和适用性,对指导非常规气藏开发具有重大意义。The traditional decline model is limited by rate- decline analysis and estimation for unconventional reservoirs.So based on the traditional rate- decline model and unconventional gas reservoir development practice,by statistics,an empirical method about rate- decline analysis and estimation for unconventional reservoirs is proposed,and additionally production decline of unconventional reservoirs acts the characteristic called 'three parameters,two maxima and one correlation'. Put the way into practice,and the result shows that it can not only forecast production and estimate reserves,but also can indicate the shift of the well production condition,and estimate the risk of gas reservoir development. Examples confirmed the validity,reliability and suitability of this method,so it's of importance for gas reservoir development.

关 键 词：非常规气藏 评价 递减规律 指示 风险评估 

分 类 号：TE377[石油与天然气工程—油气田开发工程]