天然气地球科学

• 天然气开发 • 上一篇    下一篇

致密油储层水平井产能影响因素研究

彭晖,刘玉章,冉启全,王欣,童敏   

  1. 1.中国石油勘探开发研究院,北京  100083;
    2.中国石油勘探开发研究院廊坊分院,河北 廊坊  065007
  • 收稿日期:2013-05-29 修回日期:2013-09-05 出版日期:2014-05-10 发布日期:2014-05-10
  • 通讯作者: 彭晖penghui2011@petrochina.com.cn E-mail:penghui2011@petrochina.com.cn
  • 作者简介:彭晖(1980-),女,山东胶南人,博士研究生,主要从事油气田开发研究. E-mail:penghui2011@petrochina.com.cn.
  • 基金资助:

    国家高技术研究发展(“863”)计划项目课题“致密砂岩油气藏数值模拟技术与软件”(编号:2013AA064902)资助.

Study on the Horizontal Well Production in Tight Oil Reservoirs

PENG Hui,LIU Yu-zhang,RAN Qi-quan,WANG Xin,TONG Min   

  1. 1.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;
    2.Langfang Branch of Research Institute of Petroleum Exploration and Development,PetroChina,Langfang 065007,China  
  • Received:2013-05-29 Revised:2013-09-05 Online:2014-05-10 Published:2014-05-10

摘要:

致密油储层致密,开发难度大,产能影响因素多。为研究致密油储层地质特征、水平井方位以及布缝方式等因素对单井产能的影响,采用数值模拟方法,分别建立了压裂水平井的单井模型,研究不同参数对产能的影响,并定义了影响因子,量化油藏地质参数对不同阶段单井产量的影响。结果表明,天然裂缝的导流能力决定了单井初期产能的高低,而产量递减速度主要取决于基质孔隙度的大小;在初期阶段产能的主要影响因素是天然裂缝的导流能力,后期阶段主要影响因素是基质孔隙度。当水平井筒方向与裂缝方向垂直时,通常获得较大的产能;体积压裂形成的网状缝可以大大改善开发效果,但是在网状缝难以形成时,通过增加压裂段数,可以达到相近的开发效果;合理地交错布缝,可以有效地采出缝间及井间的储量,从而大大改善开发效果。

关键词: 致密油, 水平井, 布缝方式, 网状缝, 缝控单元

Abstract:

Great challenges exist in the development of tight oil reservoirs.In order to examine the influences of geological characteristics,the orientation of horizontal wells and fracture patterns on the horizontal well production,reservoir simulation models for the fractured horizontal well were built to investigate these influences.The influence index was used to quantify the effects of these geological parameters.It is indicated that,the conductivity of natural fractures is the crucial factor to the initial productivity,and the matrix porosity is the most important factor to the decline rate.During the early period,the conductivity of natural fractures plays an important role,so does the matrix porosity during the late period.The orientation of horizontal wells should be coordinated with the orientations of natural fractures and hydraulic fractures,so as to get the highest productivity.The reasonable fracture pattern should reach an improved development.


Key words: Tight oil, Horizontal well, Fracture patterns, Netted fracture, Fracture-controlled unit

中图分类号: 

  • TE33

[1]Jia Chengzao,Zheng Min,Zhang Yongfeng.Unconventional hydrocarbon resources in China and the prospect of exploration and development[J].Petroleum Exploration and Development,2012,39(2):129-135.[贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-135.]
[2]Jia Chengzao,Zou Caineng,Li Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-349.[贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油勘探与开发,2012,33(3):343-349.]
[3]Qiu Zhen,Zou Caineng,Li Jianzhong,et al.Unconventional petroleum resources assessment:Progress and future prospects[J].Natural Gas Geoscience,2013,24(2):238-246.[邱振,邹才能,李建忠,等.非常规油气资源评价进展与未来展望[J].天然气地球科学,2013,24(2):238-246.]
[4]Zheng Junwei,Yu Ling,Sun Deqiang.Main affecting factors and special technologies for exploration and exploitation of low-permeability oil and gas resources[J].Natural Gas Geoscience,2009,20(5):651-656.[郑军卫,庾凌,孙德强.低渗透油气资源勘探开发主要影响因素与特色技术[J].天然气地球科学,2009,20(5):651-656.]
[5]Chen Mingqiang,Pu Chunsheng,Zhao Jiyong.Calculation and analysis of the true productivity of a well of low permeable reservoirs of deformation medium[J].Journal of Xi′an Shiyou University:Natural Science Edition,2006,21(2):18-22.[陈明强,蒲春生,赵继勇,等.变形介质低渗透油藏油井真实产能计算与分析[J].西安石油大学学报:自然科学版,2006,21(2):18-22.]
[6]Cheng Qigui,Lei Qihong,Xiong Weiliang.Theory and technology of effective displacement pressure system of tight oil reservoir[J].Natural Gas Geoscience,2012,23(3):570-576.[程启贵,雷启鸿,熊维亮.致密油藏有效驱替压力系统建立理论与技术[J].天然气地球科学,2012,23(3):570-576.]
[7]Hao Mingqiang,Wang Xiaodong,Hu Yongle.Productivity calculation of multi-fractured horizontal well in ultra-low permeability pressure-sensitive reservoirs[J].Journal of China University of Petroleum:Natural Science Edition,2011,35(6):99-105.[郝明强,王晓冬,胡永乐.压敏性特低渗透油藏压裂水平井产能计算[J].中国石油大学学报:自然科学版,2011,35(6):99-105.]
[8]Wang Zhiping,Zhu Weiyao,Yue Ming,et al.A method to predict the production of fractured horizontal wells in low/ultra-low permeability reservoirs[J].Journal of University of Science and Technology Beijing,2012,34(7):750-754.[王志平,朱维耀,岳明,等.低、特低渗透油藏压裂水平井产能计算方法[J].北京科技大学学报,2012,34(7):750-754.]
[9]Crosby D G,Rabman M M,Rahman M K,et al.Single and multiple transverse fracture initiation from horizontal wells[J].Journal of Petroleum Science and Engineering,2002,35(3/4):191-204.
[10]Zeng F h,Zhao G.The optimal hydraulic fracture geometry under non-Darcy flow effects[J].Journal of Petroleum Science and Engineering,2010,72(1/2):143-157.
[11]Nashawi I S,Malallah A H.Well test analysis of finite-conductivity fractured wells producing at constant bottom-hole pressure[J].Journal of Petroleum Science and Engineering,2007,57(3/4):303-320.

[1] 黄雨,李晓平,谭晓华. 三重介质复合气藏水平井不稳定产量递减动态分析[J]. 天然气地球科学, 2018, 29(8): 1190-1197.
[2] 杨智峰,曾溅辉,韩菲. 鄂尔多斯盆地西南部延长组7段致密油充注影响因素分析[J]. 天然气地球科学, 2018, 29(7): 961-972.
[3] 曾凡辉,王小魏,郭建春,郑继刚,李亚州,向建华. 基于连续拟稳定法的页岩气体积压裂水平井产量计算[J]. 天然气地球科学, 2018, 29(7): 1051-1059.
[4] 吕志凯,贾爱林,唐海发,刘群明,王泽龙. 大型致密砂岩气藏水平井产能评价与新认识[J]. 天然气地球科学, 2018, 29(6): 873-879.
[5] 翁定为,付海峰,包力庆,胥云, 梁天成,张金. 水平井平面射孔实验研究[J]. 天然气地球科学, 2018, 29(4): 572-578.
[6] 卢文涛,李继庆,郑爱维,梁榜,张谦,杨文新. 涪陵页岩气田定产生产分段压裂水平井井底流压预测方法[J]. 天然气地球科学, 2018, 29(3): 437-442.
[7] 巫修平,张群. 碎软低渗煤层顶板水平井分段压裂裂缝扩展规律及控制机制[J]. 天然气地球科学, 2018, 29(2): 268-276.
[8] 梁榜,李继庆,郑爱维,卢文涛,张谦. 涪陵页岩气田水平井开发效果评价[J]. 天然气地球科学, 2018, 29(2): 289-295.
[9] 王业众,段国彬,桑宇,彭华,张林,周长林,余良志,陈伟华. 衬管完井水平井新型布酸技术研究与应用——以安岳气田磨溪构造龙王庙组气藏为例[J]. 天然气地球科学, 2017, 28(8): 1264-1268.
[10] 李登华,刘卓亚,张国生,郑志红,贾君,高煖,昝昕. 中美致密油成藏条件、分布特征和开发现状对比与启示[J]. 天然气地球科学, 2017, 28(7): 1126-1138.
[11] 严谨,何佑伟,史云清,郑荣臣,程时清,于海洋,李鼎一. 致密气藏水平井压裂缝不均匀产气试井分析[J]. 天然气地球科学, 2017, 28(6): 839-845.
[12] 李威,文志刚,窦立荣,谢勰,王泽,李馨. 鄂尔多斯盆地西南地区油气富集与储层演化史[J]. 天然气地球科学, 2017, 28(6): 920-929.
[13] 庞强, 冯强汉,马妍,张昱煜,彭雪花. 三维地质建模技术在水平井地质导向中的应用——以鄂尔多斯盆地苏里格气田X3-8水平井整体开发区为例[J]. 天然气地球科学, 2017, 28(3): 473-478.
[14] 张凤奇,钟红利,魏登峰,张凤博,柳伟明,刘伟. 鄂尔多斯盆地陕北斜坡东南部长7段致密砂岩油藏成藏物性下限[J]. 天然气地球科学, 2017, 28(2): 232-240.
[15] 贾建称,陈晨,董夔,吴艳,吴敏杰. 碎软低渗煤层顶板水平井分段压裂高效抽采煤层气技术研究[J]. 天然气地球科学, 2017, 28(12): 1873-1881.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!