蒸汽吞吐稠油油藏证实储量评估中递减率计算新法  

A New Calculation Method of Proved Reserves Declining Rate in Steam Stimulation of Heavy Oil Reservoirs

作　　者：黄祥光[1] 于军[1] 陈超[1] 

机构地区：[1]中国石油辽河油田分公司勘探开发研究院,辽宁盘锦124010

出　　处：《石油工业技术监督》2014年第3期1-3,共3页Technology Supervision in Petroleum Industry

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(编号:油勘函[2010]116号)

摘　　要：注蒸汽开发的热采稠油油藏SEC储量评估方法中只有递减法,合理确定递减率是储量评估的关键,但对于相对稳产或多段递减的热采稠油油藏递减率选取难度大。针对这一难题,考虑把国内计算蒸汽吞吐技术可采储量的方法—注采关系曲线法引入到证实储量评估中,辅助确定递减率。以小洼油田洼59块为例,其证实储量的计算结果符合油田的开发实际。该方法有一定的适用性和可行性,并对其他油田有借鉴意义。The declining method is only SEC reserves assessment method in the steam injection recovery of heavy oil reservoirs. The determination of the appropriate declining rate is the key to the reserves assessment. But the selection of the declining rate of the heavy oil reservoirs with relatively stable yield or of multi-segment declining is difficult. To solve this problem, the injection-production curve method for calculating the recoverable reserves in steam huff and puff technology is introduced into the proved reserves assessment to determine the declining rate. Taking Wa-59 block of Xiaowa Oilfield as an example, the proved reserves calculated using the declining rate determined by the method accords with the practice of oilfield exploitation. This method has a certain applicability and feasibility, and can provide reference to other oilfields.

关 键 词：蒸汽吞吐 稠油油藏 经济极限产量 证实储量 递减率 辽河油区 

分 类 号：TE345[石油与天然气工程—油气田开发工程]