[1]侯腾飞,张士诚,马新仿,等.涪陵页岩气X井裂缝网络参数对产能的影响[J].深圳大学学报理工版,2016,33(4):409-417.[doi:10.3724/SP.J.1249.2016.04409]
 Hou Tengfei,Zhang Shicheng,Ma Xinfang,et al.Influence of fracture network parameters on productivity of shale gas well X in Fuling block[J].Journal of Shenzhen University Science and Engineering,2016,33(4):409-417.[doi:10.3724/SP.J.1249.2016.04409]
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涪陵页岩气X井裂缝网络参数对产能的影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第33卷
期数:
2016年第4期
页码:
409-417
栏目:
环境与能源
出版日期:
2016-07-12

文章信息/Info

Title:
Influence of fracture network parameters on productivity of shale gas well X in Fuling block
文章编号:
201604010
作者:
侯腾飞张士诚马新仿邵俊杰李栋贺雨南
中国石油大学(北京)石油工程学院,北京 102249
Author(s):
Hou Tengfei Zhang Shicheng Ma Xinfang Shao Junjie Li Dong and He Yunan
College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, P.R.China
关键词:
水力压裂页岩气缝网形态裂缝密度裂缝方位非均匀铺砂油井产能
Keywords:
hydraulic fracturing shale gas fracture network pattern fracture density fracture orientation uneven proppant distribution well productivity
分类号:
TE 357.1
DOI:
10.3724/SP.J.1249.2016.04409
文献标志码:
A
摘要:
通过水平井缝网压裂技术实现涪陵地区页岩气藏的页岩气商业规模化开采.结合岩石力学分析和油藏数值模拟,对水平井缝网形态学、裂缝密度、裂缝方位和裂缝非均匀铺砂等进行研究.结果表明,裂缝方位与井筒夹角为90°时产气量最大;网络裂缝等长时气井采出程度最高,两边长中间短的裂缝形态次之,储层改造体积小的裂缝形态压裂效果最差;同样的改造区域,裂缝密度越大,压裂效果越好,压裂时需沟通微裂缝,形成网络裂缝;非均匀铺砂对页岩气井产能影响大,高浓度均匀铺砂比低浓度均匀铺砂产能高,非均匀铺砂产能居于两者之间,模拟显示每条裂缝产气量差异较大.
Abstract:
Commercial shale gas production is achieved by using horizontal network fracturing techniques in the Fuling shale gas reservoir. Combining rock mechanics analysis and numerical reservoir simulation, we investigate the effects of horizontal fracture network morphology, fracture density, fracture orientation and uneven proppant distribution on the performance of well productivity. The results show that the gas well with equal-length fractures has the highest value of recovery factor, followed by the case with longer fractures on sides but shorter in the middle. Moreover, the worst fracturing performance is achieved for the fracture pattern with the smallest SRV (stimulated-reservoir volume). The largest gas production rate is obtained when the angle between fractures and wellbore becomes 90°. In the same stimulated block, fracturing performance can be enhanced for the cases with higher fracture and micro-fractures density that are connected to develop fracture network. Furthermore, the case of uneven proppant distribution has significant influence on well productivity in shale gas which is higher than that of the uniform proppant distribution at low concentration but lower than that of the uniform proppant distribution at high concentration. This paper provides important guidance for the development of multistage fracturing in the Fuling block.

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备注/Memo

备注/Memo:
Received:2016-01-25;Accepted:2016-04-26
Foundation:National Basic Research Program of China (2013CB228004); National Natural Science Foundation of China (51504266)
Corresponding author:Professor Zhang Shicheng.E-mail: zhangsc@cup.edu.cn
Citation:Hou Tengfei, Zhang Shicheng, Ma Xinfang, et al. Influence of fracture network parameters on productivity of shale gas well X in Fuling block[J]. Journal of Shenzhen University Science and Engineering, 2016, 33(4): 409-417.(in Chinese)
基金项目:国家重点基础研究发展计划资助项目(2013CB228004);国家自然科学基金资助项目(51504266)
作者简介:侯腾飞(1989—),男,中国石油大学(北京)博士研究生. 研究方向:储层改造方向.E-mail:t.f_hou 2014@yahoo.com
引文:侯腾飞,张士诚,马新仿,等. 涪陵页岩气X井裂缝网络参数对产能的影响[J]. 深圳大学学报理工版,2016,33(4):409-417.
更新日期/Last Update: 2016-06-23