[1]陈晓明.海上油田滚动开发动态储量评价新方法与实践[J].复杂油气藏,2022,15(04):38-43.[doi:10.16181/j.cnki.fzyqc.2022.04.008]
 CHEN Xiaoming.New methods and practices for dynamic reserve evaluation in rolling development of offshore oilfields[J].Complex Hydrocarbon Reservoirs,2022,15(04):38-43.[doi:10.16181/j.cnki.fzyqc.2022.04.008]
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海上油田滚动开发动态储量评价新方法与实践()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年04期
页码:
38-43
栏目:
油气开发
出版日期:
2023-02-01

文章信息/Info

Title:
New methods and practices for dynamic reserve evaluation in rolling development of offshore oilfields
作者:
陈晓明
中海石油(中国)有限公司天津分公司,天津 300459
Author(s):
CHEN Xiaoming
Tianjin Branch of CNOOC Ltd., Tianjin 300459,China
关键词:
滚动开发动态储量泄油指数量纲分析法评估图版
Keywords:
rolling developmentdynamic reservesdrainage indexdimension analysisanalytical plate
分类号:
TE331
DOI:
10.16181/j.cnki.fzyqc.2022.04.008
文献标志码:
A
摘要:
泄油指数法作为矿场动态储量评估的经验方法具有一定的实践优势,但目前缺乏有关该方法的系统性研究。首先从概念上区分了泄油指数与采油指数的差异,其次从解析解入手,基于量纲分析推导得到无量纲泄油指数的表达式。公式表明:无量纲泄油指数倒数与自然递减率倒数为线性关系,其中角系数可直接反映动态储量的规模,当储层导压系数确定时,角系数越小,动态储量越大。依据线性关系可绘制理论评估图版,根据实际点在图版上的投影趋势判断储量动用情况及变化趋势,图版法的评估结果得到了数值模拟的验证。矿场实例分析表明,该方法能够充分考虑油井各阶段生产特征,有效减少由于拟稳态数据段选取不准确带来的评估误差,其结果更加可靠,具有进步意义。
Abstract:
The oil drainage index method has certain practical advantages as an empirical method for dynamic reserve assessment at mine sites,but there is a lack of systematic studies on this method. Firstly,the difference between the oil drainage index and the oil recovery index is distinguished conceptually. Then,the expression of the dimensionless oil drainage index is derived from the analytical solution based on the dimensional analysis. The equation shows that the inverse of the dimensionless oil drainage index is linearly related to the inverse of the natural decreasing rate,where the angular coefficient can directly reflect the scale of dynamic reserves,and when the reservoir pressure conductivity is determined,the smaller the angular coefficient,the larger the dynamic reserves. Based on the linear relationship,the theoretical evaluation plate can be drawn,and the reserve utilization and change trend can be judged according to the projection trend of the actual points on the plate,and the evaluation results of the plate method are verified by numerical simulation. Field application shows that the method can fully consider the production characteristics of each stage of the well,and effectively reduce the evaluation errors caused by the inaccurate selection of the pseudo-steady-state data,and its results are more reliable and have progressive significance.

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备注/Memo

备注/Memo:
收稿日期:2021-10-13;改回日期:2021-12-10。
作者简介:陈晓明(1990—),硕士,工程师,主要从事油藏工程方面的研究工作。E-mail:chenxm33@cnooc.com.cn。
基金项目:国家科技重大专项“渤海油田高效开发示范工程”(2016ZX05058);中海石油(中国)有限公司重大科研项目“渤海‘双高’油田挖潜技术研究”(编号:YXKY-2018-TJ-04)部分研究成果。
更新日期/Last Update: 2022-12-25