注蒸汽开发油藏SEC储量评估中递减率的合理确定方法  

The Rational Method of Determining Decline Rate of Steam Injection Development Oil SEC Reserves Evaluation

作　　者：黄祥光[1] 

机构地区：[1]辽河油田公司勘探开发研究院,辽宁盘锦124000

出　　处：《油气井测试》2015年第2期9-11,75,共3页Well Testing

基　　金：中国石油天然气股份公司"上市油气储量评估成果研讨"项目(油勘函[2010]116号)

摘　　要：在SEC储量评估方法中,递减法是针对注蒸汽开发稠油油藏的唯一评估方法,运用该方法的关键是递减率的合理确定。而热采稠油经常采用井间、块间接替的开发模式,产量剖面上经常出现相对稳产或多段递减,造成合理确定递减率难度大。针对这一现状,考虑把国内计算蒸汽吞吐稠油油藏技术可采储量的方法 -累积油汽比法引入到SEC储量评估中,辅助合理确定递减率,并以曙光油田杜229块例,其SEC储量的计算结果符合油田的开发实际。证实了该方法的适用性和可行性,并对其他兄弟油田的SEC储量评估工作具有一定的借鉴意义。In the SEC reserve evaluation method,the evaluation method of depreciation is the only steam injection in heavy oil reservoir development,the application of this method is the key to rationally determine the decline rate. While the thermal recovery of heavy oil wells,often used between inter block replacement pattern of development,production profile often appear relatively stable or multi segment decline,resulting in declining rate is difficult to determine a reasonable. In view of this situation,consider the method of calculation of steam stimulation domestic technical recoverable reserves of heavy oil reservoirs of the cumulative oil steam ratio method is introduced to the SEC reserve evaluation,auxiliary to determine a reasonable lapse rate,and in Shuguang oilfield block Du229 cases,calculate the SEC reserves results consistent with oilfield development practice. Confirmed the feasibility and applicability of the method,and has certain reference significance for other SEC reserve evaluation of oilfield.

关 键 词：蒸汽吞吐 稠油油藏 经济极限油汽比 SEC储量 辽河油区 

分 类 号：TE328[石油与天然气工程—油气田开发工程]