|本期目录/Table of Contents|

[1]李文红 任超群 林瑞敏 付 强.一种新的水驱油藏多层合采井产量动态劈分方法[J].中国海上油气,2019,31(04):89-95.[doi:10.11935/j.issn.1673-1506.2019.04.011 ]
 LI Wenhong REN Chaoqun LIN Ruimin FU Qiang.A new dynamic production splitting method for multi-layer commingled production wells in water-flooding reservoirs[J].China Offshore Oil and Gas,2019,31(04):89-95.[doi:10.11935/j.issn.1673-1506.2019.04.011 ]
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一种新的水驱油藏多层合采井产量动态劈分方法()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年04期
页码:
89-95
栏目:
油气田开发
出版日期:
2019-07-25

文章信息/Info

Title:
A new dynamic production splitting method for multi-layer commingled production wells in water-flooding reservoirs
文章编号:
1673-1506(2019)04-0089-07
作者:
李文红 任超群 林瑞敏 付 强
(中海石油(中国)有限公司湛江分公司 广东湛江 524057)
Author(s):
LI Wenhong REN Chaoqun LIN Ruimin FU Qiang
(CNOOC China Limited, Zhanjiang Branch, Zhanjiang, Guangdong 524057, China)
关键词:
水驱油藏 多层合采 时间重整 产量劈分 南海西部 合采井
Keywords:
water-flooding reservoir multi-layer commingled production time-normalized production splitting western South China Sea commingled well
分类号:
TE33+1
DOI:
10.11935/j.issn.1673-1506.2019.04.011
文献标志码:
A
摘要:
受非均质性影响,水驱油藏多层合采井各层产出不均,随着含水率上升,产量劈分难度加剧,常规劈分方法的劈分结果会出现局部数据跳跃、油井水驱特征与各层产出规律矛盾等现象。提出了一种新的水驱油藏多层合采井产量动态劈分方法,即以生产动态数据为基础,以分层测试数据为约束,对油井实际液量进行时间重整化,应用产油量递减规律求取重整化后的各层产油量,进而得到重整化累产油、累产水和累产液量; 选取水驱曲线建立不同时刻水驱规律表达式,拟合得到重整化水驱曲线特征参数; 基于水驱规律一致原理,得到任一时刻各层实际累产数据,进而求得实际产油量。以南海西部文昌区天然水驱油藏X1井为例进行了方法应用,计算结果与油井测试结果一致,且符合生产动态认识。本文方法可以降低常规理论计算中多种参数选取所带来的劈分误差,实际操作性较强。
Abstract:
The output of each layer in multi-layer commingled wells in water flooding reservoir is unbalanced due to the heterogeneity, and the difficulty in production splitting will increase as the water cut rises; the results of conventional production splitting methods may cause local data leap, and the contradiction between the water flooding characteristics of oil wells and the production law of each layer. Hence, a new dynamic production splitting method for multi-layer commingled production wells in water-flooding reservoirs is proposed in this paper. This new method, based on the production dynamic data and taking the zone test data as the constraint, generates time-normalized actual liquid production of oil well, and uses the production decline law to obtain the renormalized oil production of each layer, and further obtain the renormalized oil, water and liquid cumulative productions. The water-flooding curve is properly selected to establish the expression of water-flooding laws at different times, through which, the renormalized characteristic parameters of water-flooding curve are obtained by fitting; based on the consistency principle of water flooding law, the actual cumulative production data of each layer at any time is obtained, and furthermore, the actual oil production can be calculated. This method is applied in Well X1 of a natural water-flooding reservoir in Wenchang area, western South China Sea. The calculation results are consistent with the oil well test results and match well with the production dynamics understanding. This method proposed in this paper can reduce the production splitting error caused by the selection of multiple parameters in the conventional theoretical calculation, and shows a strong practical operability.

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相似文献/References:

备注/Memo

备注/Memo:
*中海石油(中国)有限公司综合科研项目“复杂断块油藏注水开发剩余油分布规律及主控因素研究(编号:YXKY-2018-ZJ-02)”部分研究成果。 第一作者简介: 李文红,女,高级工程师,从事油气田开发研究工作。地址:广东省湛江市坡头区南油二区研究院(邮编:524057)。E-mail:liwenhong@cnooc.com.cn。
更新日期/Last Update: 1900-01-01