|本期目录/Table of Contents|

[1]任佳伟,王贤君,张先敏,等.大庆致密油藏水平井重复压裂及裂缝参数优化模拟[J].断块油气田,2020,27(05):638-642.[doi:10.6056/dkyqt202005018]
 REN Jiawei,WANG Xianjun,ZHANG Xianmin,et al.Refracturing and fracture parameters optimization simulation for horizontal well in Daqing tight oil reservoir[J].Fault-Block Oil and Gas Field,2020,27(05):638-642.[doi:10.6056/dkyqt202005018]
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大庆致密油藏水平井重复压裂及裂缝参数优化模拟(PDF)
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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
27
期数:
2020年05
页码:
638-642
栏目:
开发工程
出版日期:
2020-09-25

文章信息/Info

Title:
Refracturing and fracture parameters optimization simulation for horizontal well in Daqing tight oil reservoir
作者:
任佳伟12王贤君34张先敏12王维34
1.中国石油大学(华东)石油工程学院,山东 青岛 266580;2.非常规油气开发教育部重点实验室(中国石油大学(华东)),山东 青岛 266580;
3.中国石油大庆油田有限责任公司采油工程研究院,黑龙江 大庆 163000;4.黑龙江省油气藏增产增注重点实验室,黑龙江 大庆 163000
Author(s):
REN Jiawei12 WANG Xianjun34 ZHANG Xianmin12 WANG Wei34
1.School of Petroleum Engineering, China University of Petroleum, Qingdao 266580, China; 2.Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum, Qingdao 266580, China; 3.Oil Production Engineering Research Institute, Daqing Oilfield Company Ltd., PetroChina, Daqing 163000, China; 4.Heilongjiang Provincial Key Laboratory of Oil and Gas Reservoir Stimulation, Daqing 163000, China
关键词:
致密油重复压裂水平井改造方式增产潜力
Keywords:
tight oil refracturing horizontal well fracturing mode stimulation potential
分类号:
TE357
DOI:
10.6056/dkyqt202005018
文献标志码:
A
摘要:
大庆致密油藏部分水平井压裂投产后产能递减严重,初次增产措施失效,油藏整体采出程度低。为寻求低产水平井有效增产方法,开展了重复压裂技术综合研究。文中利用数值模拟方法建立了重复压裂产能预测模型及水平井压裂裂缝应力场计算模型,分析了目标井重复压裂的增产潜力,明确了重复压裂改造的有利区域,优选了重复压裂最佳改造方式,进而确定了最佳改造方式下的最优裂缝参数组合。模拟结果表明:重复压裂措施可有效扩大储层改造体积和补充地层能量,显著提高单井产量;老缝增能、新缝压裂是大庆致密油藏重复压裂最佳改造方式,裂缝补压簇数及裂缝导流能力对大庆致密油重复压裂影响效果显著,裂缝半长对产油水平影响有限。
Abstract:
After some fractured horizontal wells in Daqing tight oil reservoir are put into production, the production capacity declines seriously and the initial production stimulation measures fail, thus the overall recovery degree of the reservoir is low. In order to find effective production stimulation methods for low-production horizontal wells, comprehensive research on refracturing technology is carried out. By using the numerical simulation method, the refracturing productivity prediction model and the fracture stress field calculation model of horizontal well are established to analyze the target well′s refracturing stimulation potential, determine the favorable area of refracturing, optimize the best refracturing mode, and then determine the optimal fracture parameters combination under the best stimulation mode. The stimulation results show that refracturing measures can effectively expand the reservoir stimulation volume, supplement formation energy and significantly increase single well production. Enhancing old fractures and fracturing new fractures is the best way of refracturing in Daqing tight oil reservoirs. The clusters number of added-fractures and fracture conductivity have a significant effect on refracturing in Daqing tight oil reservoirs, and the effect of fracture half-length for oil production level is limited.

参考文献/References:

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更新日期/Last Update: 2020-09-24