[1]王 相,何岩峰,冯其红,等.基于均衡驱替理念的非均质油藏井组设计方法............王 相,何岩峰,冯其红,窦祥骥,徐 慧,王浩宇(41)[J].常州大学学报(自然科学版),2018,30(06):41-46.[doi:10.3969/j.issn.2095-0411.2018.06.006]
　WANG Xiang,HE Yanfeng,FENG Qihong,et al.A Well Pattern Design Method for Heterogeneous Reservoir Based on the Concept of Equilibrium Displacement[J].Journal of Changzhou University(Natural Science Edition),2018,30(06):41-46.[doi:10.3969/j.issn.2095-0411.2018.06.006]
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基于均衡驱替理念的非均质油藏井组设计方法............王 相,何岩峰,冯其红,窦祥骥,徐 慧,王浩宇(41)()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第30卷
期数:
2018年06期
页码:
41-46
栏目:
出版日期:
2018-11-28

文章信息/Info

Title:
A Well Pattern Design Method for Heterogeneous Reservoir Based on the Concept of Equilibrium Displacement
作者:
王 相1; 何岩峰1; 冯其红2; 窦祥骥1; 徐 慧1; 王浩宇1
(1.常州大学 石油工程学院,江苏 常州 213164; 2.中国石油大学(华东)石油工程学院,山东 青岛 266580)
Author(s):
WANG Xiang1;  HE Yanfeng1;  FENG Qihong2;  DOU Xiangji1;  XU Hui1;  WANG Haoyu1
(1.School of Petroleum Engineering, Changzhou University, Changzhou 213164, China; 2.School of Petroleum Engineering, China University of Petroleum(East China), Qingdao 266580, China)
关键词:
井距设计;  注采井组;  均衡驱替;  水驱;  非均质储层
Keywords:
well spacing design;  well pattern;  equilibrium displacement;  water flooding;  heterogeneous reservoir
分类号:
TE 324
DOI:
10.3969/j.issn.2095-0411.2018.06.006
文献标志码:
A
摘要:
注采井组作为油田注水开发的基本单元,其设计的合理性对于注入水在储层的驱替情况具有显著的影响。以实现均衡驱替为目标,考虑储层非均质性和注入水在地下的非活塞式驱替特征,推导了井距和储层动静态参数的关系式,进而得到了非均质油藏井组设计公式。对设计公式进行参数敏感性分析发现,井组中各注采方向上的井距主要受当前含水饱和度、注入速度、孔隙度等因素的影响,特别是,由于当前含水饱和度和井距呈现非线性正相关关系,到开发后期含水饱和度较高时,其对井距设计更加敏感。开展实际油藏井组设计实例应用,结果表明,传统规则井组对于非均质油藏,会导致驱替不均衡,影响开发效果。而基于均衡驱替理念的井组设计方法得到不规则井组,可以实现与储层非均质性的匹配,实现均衡驱替,改善开发效果。
Abstract:
Well pattern is the basic unit of water flooding oilfield development. It has a significant impact on the displacement of injected water into the reservoir. Aiming at realizing equilibrium displacement, considering the heterogeneity of the reservoir and the non-piston displacement characteristics of the injected water, the relationship between well spacing and reservoir dynamic and static parameters is derived, and the design formula of a well pattern for a heterogeneous reservoir is obtained. The parameter sensitivity analysis of the design formula shows that the well spacing in each injection direction of the well pattern is mainly affected by current water saturation, injection speed, porosity, etc. In particular, current water saturation and well spacing exhibit a nonlinear positive correlation. It is more sensitive to well spacing design when the water saturation is higher in the later stages of development. The application of the actual reservoir well pattern design example is carried out. The results show that the traditional well pattern leads to a nonequilibrium displacement and affect the development effect for heterogeneous reservoirs. The irregular well pattern, which is designed by the method based on the equilibrium displacement concept, can match with reservoir heterogeneity, and realize equilibrium displacement and improve reservoir development.

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备注/Memo

备注/Memo:
基金项目:江苏省高等学校自然科学研究资助项目(17KJB440001)。
作者简介:王相(1989—),男,山东滕州人,博士,讲师。E-mail: xiangwang@cczu.edu.cn
更新日期/Last Update: 2018-10-28