裂缝性低渗透砂岩油藏合理注水压力——以鄂尔多斯盆地安塞油田王窑区为例

doi:10.11743/ogg20150519

Abstract

Abstract: Analog outcrop,core and well logging data are integrated in this paper to calculate opening pressure of fractures and formation fracture pressure in different reservoir intervals and analyzed various factors affecting opening pressure of fractures based on evaluation of natural fracture characteristics.A sensitivity analysis was performed to determine proper injection pressure for low-permeability reservoirs.High dip-angle fractures are predominant in Chang-6 reservoir in Wangyao block in Ansai oilfield,and their main orientations are NEE-SWW,E-W,S-N and NW-SE,respectively.The opening pressures vary significantly in different reservoir intervals due to the control of buried depth,fracture orientation,pore fluid pressure and current geo-stress.The reasonable injection pressure should be determined by the maturity of local natural fractures accordingly.In areas with few natural fractures,water injection pressure should not be larger than formation fracture pressure,so as to avoid large-scale fracturing that leads to water breakthough.In areas with dense fractures,if the fracture opening pressure is less than the formation fracture pressure,the rational injection pressure should be set less than the formation fracture pressure to avoid large-scale opening and connection of natural fractures; otherwise the injection pressure should be properly set according to the formation fracture pressure to avoid new large-scale fracturing.

Key words: fracture opening pressure, formation fracture pressure, water injection pressure, natural fracture, low-permeability reservoir, Ordos Basin

CLC Number:

TE348

Zhao Xiangyuan, Zeng Lianbo, Jin Baoguang, Jiao Jun, Li Peihai, Zhang Yangyu, Chen Minzheng. Discussion on optimal injection pressure of fractured low-permeability sandstone reservoirs—A case study from Wangyao block in Ansai oilfield, Ordos Basin[J]. Oil & Gas Geology, 2015, 36(5): 855-861.

References

[1] 吴志宇.安塞特低渗透油田开发稳产技术[M].北京:石油工业出版社,2013. Wu Zhiyu.Stable yield technology in development of Ansai low-permeability oilfield[M].Beijing:Petroleum Industry Press,2013.
[2] 张震,鲍志东.松辽盆地朝阳沟油田储层裂缝发育特征及控制因素[J].地学前缘,2009,16(04):166-172. Zhang Zhen,Bao Zhidong.Development characteristics and controlling factors of reservoir fractures in Chaoyanggou Oilfield,Songliao Basin[J].Earth Science Frontiers,2009,16(4):166-172.
[3] 刘子良,梁春秀.松辽盆地南部构造裂缝成因机制及分布方向[J].石油勘探与开发,1999,26(05):83-85. Liu Ziliang,Liang Chunxiu.Genetic mechanism and distribution direction of tectonic fractures in southern Songliao Basin[J].Pertroleum Exploration and Development,1999,26(05):83-85.
[4] 周新桂,张林炎,屈雪峰,等.沿河湾探区低渗透储层构造裂缝特征及分布规律定量预测[J].石油学报,2009,30(02):195-200. Zhou Xingui,Zhang Linyan,Qu Xuefeng,et al.Characteristics and quantitative prediction of distribution laws of tectonic fractures of low-permeability reservoirs in Yanhewan area[J].Acta Petrolei Sinica,2009,30(02):195-200.
[5] 王瑞飞,孙卫.鄂尔多斯盆地姬塬油田上三叠统延长组超低渗透砂岩储层微裂缝研究[J].地质论评,2009,55(03):444-448. Wang Ruifei,Sun Wei.A study on micro cracks in super-low permeability sandstone reservoir of the Upper Triassic Yanchang Formation in the Ordos Basin[J].Geological Review,2009,55(03):444-448.
[6] 刘洪涛,曾联波,房宝才,等.裂缝对大庆台肇地区低渗透砂岩储层注水的影响[J].石油大学学报(自然科学版),2005,29(04):74-78. Liu Hongtao,Zeng Lianbo,Fang Baocai,et al.Influence of fractures on injection for low-permeability sandstone reservoir in Taizhao area,Daqing Oilfield[J].Journal of the University of Petroleum(Science and Technology),2005,29(04):74-78.
[7] 巩磊,曾联波,李娟,等.南襄盆地安棚浅、中层系特低渗储层裂缝特征及其与深层系裂缝对比[J].石油与天然气地质,2012,33(5):778-784. Gong Lei,Zeng Lianbo,Li Juan,et al.Features of fractures in shallow-to mid-depth reservoirs with ultra-low permeability and their comparison with those in deep reservoirs in Anpeng oilfield,the Nanxiang Basin[J].Oil & Gas Geology,2012,33(5):778-784.
[8] 曾联波,李忠兴,史成恩,等.鄂尔多斯盆地上三叠统延长组特低渗透砂岩储层裂缝特征及成因[J].地质学报,2007,81(02):174-180. Zeng Lianbo,Li Zhongxing,Shi Chengen,et al.Characteristics and origin of fractures in the extra low-permeability sandstone reservoirs of the Upper Triassic Yanchang Formation in the Ordos Basin[J].Acta Geological Sinica,2007,81(02):174-180.
[9] 张莉,杨亚娟,岳乐平,等.哈南阿尔善油藏微裂缝特征及其对开发的影响[J].石油与天然气地质,2001,22(2):158-160. Zhang Li,Yang Yajuan,Yue Leping,et al.Characteristics of micro-fractures and their influence on waterflooding in Aershan reservoir,Hanan oilfield[J].Oil & Gas Geology,2001,22(2):158-160.
[10] 周新桂,张林炎,黄臣军.华庆探区长6₃储层破裂压力及裂缝开启压力估测与开发建议[J].中南大学学报(自然科学版),2013,44(07):2812-2818. Zhou Xingui,Zhang Linyan,Huang Chenjun.Estimation of formation breakdown pressure and fracture open pressure of Chang 6₃ low permeable reservoir in Huaqing area and development suggestions[J].Journal of Central South University(Science and Technology),2013,44(07):2812-2818.
[11] 吴忠宝,胡文瑞,宋新民,等.天然微裂缝发育的低渗透油藏数值模拟[J].石油学报,2009,30(05):727-730. Wu Zhongbao,Hu Wenrui,Song Xinmin,et al.Numerical simulation on low-permeability reservoir with abundant natural micro-fractures[J].Acta Petrolei Sinica,2009,30(05):727-730.
[12] 熊维亮,潘增耀,王斌,等.特低渗透油田裂缝发育区剩余油分布及调整技术[J].石油勘探与开发,1999,26(5):46-49. Xiong Weiliang,Pan Zengyao,Wang Bin,et al.Distribution of remaining oil and its adjustment in fracture-developed areas of ultra-low permeability oil fields[J].Pertroleum Exploration and Development,1999,26(5):46-49.
[13] 曾联波,高春宇,漆家福,等.鄂尔多斯盆地陇东地区特低渗透砂岩储层裂缝分布规律及其渗流作用[J].中国科学(D辑):地球科学,2008,38(增刊1):41-47. Zeng Liaobo,Gao Chunyu,Qi Jiafu,et al.The distribution rules and seepage effects of fractures in ultra-low permeability sandstone reservoir in Loingdong area,Ordos basin[J].Science in China(Series D):Earth Science,2008,38(Supplement 1):41-47.
[14] 刘洪涛,曾联波,房宝才,等.裂缝对大庆台肇地区低渗透砂岩储层注水的影响[J].石油大学学报(自然科学版),2005,29(04):74-78. Liu Hongtao,Zeng Lianbo,Fang Baocai,et al.Influence of fractures on injection for low-permeability sandstone reservoir in Taizhao area,Daqing Oilfield[J].Journal of the University of Petroleum(Science and Technology),2005,29(04):74-78.
[15] 付国民,孙磊,刘蕊,等.延安地区长₆油层裂缝特征及对注水开发影响[J].西南石油大学学报(自然科学版),2009,31(3):74-77. Fu Guomin,Sun Lei,Liu Rui,et al.Characteristics of Chang 6 reservoir and theinfluence on water injection production in Yan An area[J].Journal of Southwest Petroleum University(Science & Technology Edition),2009,31(3):74-77.
[16] 薛永超.新立油田扶杨油层裂缝特征及对开发影响[J].复杂油气藏,2010,3(3):50-53. Xue Yongchao.Fracture features and their influence on the development of Fuyang Formation in Xinli Oilfield[J].Complex Hydrocarbon Reservoirs,2010,3(3):50-53.
[17] 李士祥,邓秀芹,庞锦莲,等.鄂尔多斯盆地中生界油气成藏与构造运动的关系[J].沉积学报,2010,28(4):798-807. Li Shixiang,Deng Xiuqin,Pang Jinlian,et al.Relationship between petroleum accumulation of Mesozoic and tectonic movement in Ordos Basin[J].Acta Sedimentologica Sinica,2010,28(4):798-807.
[18] 吴崇筠,薛叔浩.中国含油气盆地沉积学[M].北京:石油工业出版社,1993. Wu Chongjun,Xue Shuhao.Sedimentology of petroliferous basins in China[M].Beijing:Petroleum Industry Press,1993.
[19] 武富礼,李文厚,李玉宏,等.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J].古地理学报,2004,6(3):307-315. Wu Fuli,Li Wenhou,Li Yuhong,et al.Delta sediments and evolution of the Yanchang Formation of Upper Triassic in Ordos Basin[J].Journal of Palaeogeography,2004,6(03):307-315.
[20] 赵振宇,郭炎如,王艳,等.鄂尔多斯盆地构造演化及古地理特征研究进展[J].特种油气藏,2012,19(5):15-20. Zhao Zhenyu,Guo Yanru,Wang Yan,et al.Study progress in tectonic evolution and paleogeography of Ordos Basin[J].Special Oil and Gas Reservoir,2012,19(05):15-20.
[21] 刘自亮,朱筱敏,廖纪佳,等.鄂尔多斯盆地西南缘上三叠统延长组层序地层学与砂体成因研究[J].地学前缘,2013,20(2):1-9. Liu Ziliang,Zhu Xiaomin,Liao Jijia,et al.Sequence stratigraphy and genesis of sand bodies of the Upper Triassic Yanchang Formation in the southwestern margin of Ordos Basin[J].Earth Science Frontiers,2013,20(2):1-9.
[22] 杨华,刘自亮,朱筱敏,等.鄂尔多斯盆地西南缘上三叠统延长组物源与沉积体系特征[J].地学前缘,2013,20(2):10-18. Yang Hua,Liu Ziliang,Zhu Xiaomin,et al.Provenance and depositional systems of the Upper Triassic Yanchang Formation in the southwestern margin of Ordos Basin[J].Earth Science Frontiers,2013,20(2):10-18.
[23] 朱玉双,曲志浩,孔令荣,等.安塞油田坪桥区、王窑区长6油层储层特征及驱油效率分析[J].沉积学报,2000,18(02):279-283. Zhu Yushuang,Qu Zhihao,Kong Lingrong,et al.Analysis of oil displacement efficiency of Chang 6 reservoir in Wangyao and Pingqiao Areas of Ansai Oilfield[J].Acta Sendimentological Sinica,2000,18(02):279-283.
[24] 张金亮,司学强,秦敬.安塞油田王窑地区长6油层沉积微相研究[J].西北地质,2003,36(3):62-71. Zhang Jinliang,Si Xueqiang,Qin Jing.A research on sedimentary microfacies of Chang 6 reservoir in Wangyao block,Ansai oilfield[J].Northwestern Geology,2003,36(3):62-71.
[25] 李怒军,吴志宇,张金亮,等.安塞油田王窑区长6油层储层地质[J].西安石油学院学报,1998,13(4):34-41. Li Shujun,Wu Zhiyu,Zhang Jinliang,et al.Reservoir geology of Chang-6 Oil-bearing formation in Wangyao Tract,Ansai oilfield[J].Journal of Xi'an Petroleum Institute,1998,13(4):34-41.
[26] 许永涛,朱玉双,张洪军,等.安塞油田王窑区长6储层特征及孔渗特性控制因素[J].石油地质与工程,2011,25(4):25-28. Xu Yongtao,Zhu Yushuang,Zhang Hongjun,et al.Analysis on characeristics and controlling factors of Poroperm characteristies of Chang 6 reservoirs in Wangyao area of Ansai oilfield[J].Petroleum Geology and Engineering,2011,25(4):25-28.
[27] 曾联波.低渗透砂岩储层裂缝的形成与分布[M].北京:石油工业出版社,2008. Zeng Lianbo.Formation and distribution of fractures in low-permeability sandstone reservoir[M].Beijing:Petroleum Industry Press,2008.
[28] 王平.有天然裂缝的砂岩油藏的开发[J].石油学报,1993,14(04):69-75. Wang Ping.Development of sandstone reservoir with naturel fractures[J].Acta Petrolei Sinica,1993,14(04):69-75.
[29] 曾联波,赵继勇,朱圣举,等.岩层非均质性对裂缝发育的影响研究[J].自然科学进展,2008,18(2):216-220. Zeng Lianbo,Zhao Jiyong,Zhu Shengju,et al.A research on the heterogeneity of rock and its influence on fractures[J].Progress in Natural Science,2008,18(2):216-220.
[30] 张莉,岳乐平,杨亚娟.鄯善油田地应力、裂缝系统与油田开发[J].石油与天然气地质,1999,20(4):330-332. Zhang Li,Yue Leping,Yang Yajuan.In-situ stress,fracture system and oil-field development in Shanshan oilfield[J].Oil & Gas Geology,1999,20(4):330-332.
[31] 周新桂,张林炎,范昆,等.鄂尔多斯盆地现今地应力测量及其在油气开发中的应用[J].西安石油大学学报(自然科学版),2009,24(03):7-12. Zhou Xingui,Zhang Linyan,Fan Kun,et al.Measurement of the present earth stress of Ordos Basin and its applications in oil and gas exploitation[J].Journal of Xi'an Shiyou University(Natural Science Edition),2009,24(03):7-12.
[32] 袁士义,宋新民,冉启全.裂缝性油藏开发技术[M].北京:石油工业出版社,2004. Yuan Shiyi,Song Xinmin,Ran Qiquan.Development technology of fractured oil reservoirs[M].Beijing:Petroleum Industry Press,2004.

Discussion on optimal injection pressure of fractured low-permeability sandstone reservoirs—A case study from Wangyao block in Ansai oilfield, Ordos Basin

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	Weitao WU, Yansong FENG, Shixiang FEI, Yifei WANG, Heyuan WU, Xudong YANG. Enrichment factors and play fairway mapping for tight gas in the 5^th member of the Permian Shiqianfeng Formation， Shenmu gas field， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(3): 739-751.
[2]	Xiaoyu DU, Zhijun JIN, Lianbo ZENG, Guoping LIU, Sen YANG, Xinping LIANG, Guoqing LU. Evaluation of natural fracture effectiveness in deep lacustrine shale oil reservoirs based on formation microresistivity imaging logs [J]. Oil & Gas Geology, 2024, 45(3): 852-865.
[3]	Chenglin LIU, Zhengang DING, Liyong FAN, Rui KANG, Sijie HONG, Yuxin ZHU, Jianfa CHEN, Haidong WANG, Nuo XU. Geochemical characteristics and enrichment factors of helium-bearing natural gas in the Ordos Basin [J]. Oil & Gas Geology, 2024, 45(2): 384-392.
[4]	Junyu WAN, Jianhui ZHU, Suping YAO, Yi ZHANG, Chuntang LI, Wei ZHANG, Haijian JIANG, Jie WANG. Geobiological evaluation of hydrocarbon-generating organisms and source rocks in the Ordovician Majiagou Formation， east-central Ordos Basin [J]. Oil & Gas Geology, 2024, 45(2): 393-405.
[5]	Lianbo ZENG, Lei GONG, Xiaocen SU, Zhe MAO. Natural fractures in deep to ultra-deep tight reservoirs： Distribution and development [J]. Oil & Gas Geology, 2024, 45(1): 1-14.
[6]	LiHua YANG, ChiYang LIU, Lei HUANG, Yijun ZHOU, Yongtao LIU, Yang QIN. Discovery of suspected intrusive rock bodies in Gufengzhuang area， Ordos Basin and its geological significance [J]. Oil & Gas Geology, 2024, 45(1): 142-156.
[7]	Liang SHI, Bojiang FAN, Zhonghou LI, Ziwei YU, Zijin LIN, Xinyang DAI. Migration differentiation of hydrocarbon components in the 7^th member of the Triassic Yanchang Formation， central Ordos Basin [J]. Oil & Gas Geology, 2024, 45(1): 157-168.
[8]	Jiangjun CAO, Jiping WANG, Daofeng ZHANG, Long WANG, Xiaotian LI, Ya LI, Yuanyuan ZHANG, Hui XIA, Zhanhai YU. Effects of diagenetic evolution on gas-bearing properties of deep tight sandstone reservoirs： A case study of reservoirs in the 1^st member of the Permian Shanxi Formation in the Qingyang gas field， southwestern Ordos Basin [J]. Oil & Gas Geology, 2024, 45(1): 169-184.
[9]	Guangfu WANG, Fengxia LI, Haibo WANG, Tong ZHOU, Yaxiong ZHANG, Ruyue WANG, Ning LI, Yuxin CHEN, Xiaofei XIONG. Difficulties and countermeasures for fracturing of various shale gas reservoirs in the Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1378-1392.
[10]	Zongquan HU, Ruyue WANG, Jing LU, Dongjun FENG, Yuejiao LIU, Baojian SHEN, Zhongbao LIU, Guanping WANG, Jianhua HE. Storage characteristic comparison of pores between lacustrine shales and their interbeds and differential evolutionary patterns [J]. Oil & Gas Geology, 2023, 44(6): 1393-1404.
[11]	Chenglin LIU, Zhengang DING, Jianfa CHEN, Liyong FAN, Rui KANG, Haidong WANG, Sijie HONG, Anqi TIAN, Xueyong CHEN. Characteristics and helium-generating potential of helium source rocks in the Ordos Basin [J]. Oil & Gas Geology, 2023, 44(6): 1546-1554.
[12]	Yong LI, Zhitong ZHU, Peng WU, Chenzhou SHEN, Jixian GAO. Pressure evolution of gas-bearing systems in the Upper Paleozoic tight reservoirs at the eastern margin of the Ordos Basin [J]. Oil & Gas Geology, 2023, 44(6): 1568-1581.
[13]	Jianhui ZENG, Yaxiong ZHANG, Zaizhen ZHANG, Juncheng QIAO, Maoyun WANG, Dongxia CHEN, Jingli YAO, Jingchen DING, Liang XIONG, Yazhou LIU, Weibo ZHAO, Kebo REN. Complex gas-water contacts in tight sandstone gas reservoirs： Distribution pattern and dominant factors controlling their formation and distribution [J]. Oil & Gas Geology, 2023, 44(5): 1067-1083.
[14]	Yueli LIANG, Xiaoming ZHAO, Xi ZHANG, Shuxin LI, Jiawang GE, Zhihong NIE, Tingshan ZHANG, Haihua ZHU. Orbital forced high-resolution sequence boundary identification of marine-continental transitional shale and its geological significance： A case in Shan 2³ sub-member at the eastern margin of Ordos Basin [J]. Oil & Gas Geology, 2023, 44(5): 1231-1242.
[15]	Han LI, Jinhua FU, Hancheng JI, Lei ZHANG, Yuwei SHE, Wei GUAN, Xianghui JING, Hongwei WANG, qian CAO, Gang LIU, Jiayi WEI. Bauxite series in the Upper Paleozoic weathering crusts in the southwestern Ordos Basin： Development and distribution of dominant reservoirs [J]. Oil & Gas Geology, 2023, 44(5): 1243-1255.