Low permeability reservoirs have poor physical properties and strong heterogeneity. The conventional continuous waterflooding method can not effectively be used to inject into the formation and an effective driving energy system is difficult to establish. In order to better supplement energy in the region and further enhance the development extent of the reserve, the reservoir simulation method is used with the rectangle five point method for injection of vertical wells as the elementary unit and the production of horizontal wells as a comparative analysis of production levels of different injection styles, different injection periods,and the corresponding injection-production ratio combined with the actual field model to forecast the development efficiency. The result shows that with the working system of symmetrical cyclic waterflooding, and with the water injection well being open for a month then shut for a month, the injection-production ratio is 1.4. The formation pressure alternates smoothly with slowly rising water cut with a good efficiency of supplying the formation energy. The optimized development and production plan might provide some guidance for the oilfields.
YANG Zhengming
,
QU Haiyang
,
HE Ying
,
WANG Xuewu
. Cyclic waterflooding numerical simulation of fractured horizontal well group in low permeability reservoirs[J]. Science & Technology Review, 2015
, 33(22)
: 69
-72
.
DOI: 10.3981/j.issn.1000-7857.2015.22.011
[1] 郑松青. 非均匀分段压裂水平井产能计算[J]. 东北石油大学学报, 2013, 37(4): 55-59. Zheng Songqing. Productivity calculation of non- uniform multi- frac- tured horizontal wells[J]. Journal of Northeast Petroleum University, 2013, 37(4): 55-59.
[2] 尹洪军, 杨春城, 徐子怡, 等. 分段压裂水平井压力动态分析[J]. 东北 石油大学学报, 2014, 38(3): 75-80. Yin Hongjun, Yang Chuncheng, Xu Ziyi, et al. Pressure transient analysis of multi-fractured horizontal wells[J]. Journal of Northeast Petroleum University, 2014, 38(3): 75-80.
[3] 喻高明. 垂向非均质砂岩油藏周期注水机理数值模拟研究[J]. 西南石 油大学学报: 自然科学版, 1997, 19(4): 64-68. Yu Gaoming. Numerical simulation on mechanism of cyclic water flood- ing in layered heterogeneous sandstone reservoir[J]. Journal of South- west Petroleum University: Science & Technology Edition, 1997, 19(4): 64-68.
[4] 刘振宇, 刘洋,贺丽艳, 等. 人工压裂水平井研究综述[J]. 大庆石油学 院学报, 2002, 26(4): 96-99. Liu Zhenyu, Liu Yang, He Liyan, et al. Overview of the research of hydraulically fractured horizontal wells[J]. Journal of Daqing Petroleum Institute, 2002, 26(4): 96-99.
[5] 俞启泰, 张素芳. 周期注水的油藏数值模拟研究[J]. 石油勘探与开发, 1993, 20(6): 46-53. Yu Qitai, Zhang Sufang. A preliminary report of the numerical simulation study for the cycle flooding[J]. Petroleum Exploration and Development, 1993, 20(6): 46-53.
[6] 喻高明, 寿坚荣. 垂向非均匀砂岩油藏周期注水机理数值研究[J]. 断 块油气田, 1998, 5(1): 36-39. Yu Gaoming,Shou Jianrong. Numerical on mechanism of cyclic water flooding in layered heterogeneous sandstone reservoir[J]. Fault- Block Oil & Gas Field, 1998, 5(1): 36-39.
[7] 朱志香. 高含水后期周期注水实践与认识[J]. 石油地质与工程, 2010, 24(6): 56-58. Zhu Zhixiang. High water cut stage late cyclic waterflooding practice and recognition[J]. Petroleum Geology and Engineering, 2010, 24(6): 56-58
[8] 黄延章, 尚根华, 陈永敏. 用核磁共振成像技术研究周期注水驱油机 理[J]. 石油学报, 1995, 16(4): 62-67. Huang Yanzhang, Shang Genhua, Chen Yongmin. A study on mecha- nisms of cyclic waterflooding by NMRI techniques[J]. Acta Petrolei Sini- ca, 1995, 16(4): 62-67.
[9] 王锐, 岳湘安, 尤源, 等. 裂缝性低渗油藏周期注水与渗吸效应实验[J]. 西安石油大学学报: 自然科学版, 2008, 22(6): 56-59. Wang Rui, Yue Xiang'an, You Yuan, et al. Influence of pressure sensi- tivity on imbibition experiments for fractured low- permeability reser- voirs[J]. Journal of Xi'an Shiyou University: Natural Science Edition, 2008, 22(6): 56-59.
[10] 赵春森, 吕建荣, 杨大刚. 大庆油田葡北二断块南部周期注水应用方 法研究[J]. 油气地质与采收率, 2008, 15(6): 76-79. Zhao Chunsen, Lü Jianrong, Yang Dagang. Research on the application of cyclic waterflood techniques in Pubei 2 Block reservoir of Daqing[J]. Petroleum Geology and Recovery Efficiency, 2008, 15(6): 76-79.
[11] 王群超, 夏欣. 阿北安山岩裂缝性油藏的周期注水开发[J]. 断块油气 田, 2000, 7(3): 36-39. Wang Qunchao, Xia Xin. The cyclic waterflooding development for andesite fractured pools in Abei Region[J]. Fault- Block Oil & Gas Field, 2000, 7(3): 36-39.
[12] 胡广杰. 塔河油田缝洞型油藏周期注水开发技术政策研究[J]. 新疆 石油地质, 2014, 35(1): 59-62. Hu Guangjie. Technological policy research of cyclic waterflooding in fracture-cavity carbonate reservoir in Tahe Oilfield[J]. Xinjiang Petro- leum Geology, 2014, 35(1): 59-62.
[13] 樊光梅, 张维, 姬瑞兰. 周期注水在靖安油田白于山区的应用及效果 分析[J]. 石油化工应用, 2013, 32(3): 16-19. Fan Guangmei, Zhang Wei, Ji Ruilan. Cyclic waterflooding oilfield in Jingan Baiyu mountain application and effect analysis[J]. Petrochemi- cal Industry Application, 2013, 32(3): 16-19.
[14] 王玫珠, 杨正明, 王学武, 等. 大庆外围特低渗透油藏非线性渗流周 期注水研究[J]. 断块油气田, 2012, 19(3): 327-331. Wang Meizhu, Yang Zhengming, Wang Xuewu, et al. Study on cycle water injection considering non-linear flow of ultra-low permeability reservoir in periphery part of Daqing Oilfield[J]. Fault-Block Oil & Gas Field, 2012, 19(3): 327-331.
[15] 李结实, 张扬凡. 敖包塔油田合理注采比研究[J]. 大庆石油地质与开 发, 2002, 21(2): 17-18. Li Jieshi, Zhang Yangfan. Reasonable injection-production ratio in Ao- baota Oilfield[J]. Petroleum Geology & Oilfield Development in Daq- ing, 2002, 21(2): 17-18.
