Theory and Technology of Effective-Displacement-Pressure System of Tight Oil Reservoir

Expand
  • 1.The Exploration and Development Research Institution of PetroChina Changqing Oilfield Company,Xi′an 710018,China;
    2. National Engineering Laboratory of Low Permeability Oil and Gas Field,Xi′an 710018,China

Received date: 2011-12-08

  Revised date: 2012-04-16

  Online published: 2012-06-10

Abstract

With development of oil and gas industry,the exploration and development of oil and gas have been expanded from conventional oil-gas reservoir to tight oil-gas reservoir. The establishment of effective-displacement-pressure system plays a fundamental role in the development of tight oil reservoir. Based on flow characteristics of tight reservoir,a new reservoir evaluation method as main evaluation parameters has been constructed,taking pressure gradient,mainstream throat radius,effective porosity,movable fluid saturation etc. We use this new evaluation method to establish the reservoir classification evaluation chart. Meanwhile,the theory of the effective-displacement-pressure system is explored. Some key parameters such as endpoint displacement pressure,terminal flow pressure,and balance coefficient between injection and production etc are also considered. We also point out how to setup the effective-displacement -pressure system by the specific ways and methods. The process of the development practice has prove its validity.

Cite this article

CHENG Qi-Gui, LEI Qi-Hong, XIONG Wei-Liang . Theory and Technology of Effective-Displacement-Pressure System of Tight Oil Reservoir[J]. Natural Gas Geoscience, 2012 , 23(3) : 570 -576 . DOI: 10.11764/j.issn.1672-1926.2012.03.570

References

[1]Zhao Chenglin,Hu Aimei,Chen Biyu,et al.People′s Republic of China Natural Gas Industry Standards:Oil-Gas Reservoir Evaluation( SY/ T6285-1997)[S].Beijing:Petroleum Industry Press,1998:7-9.[赵澄林,胡爱梅,陈碧珏,等.中华人民共和国石油天然气行业标准:油气储层评价方法(SY/T6285-1997)[S].北京:石油工业出版社,1998:7-9.]
[2]Zhao Jingzhou,Wu Shaobo,Wu Fuli.The classification and evaluation criterion of low permeability reservoir:An example from Ordos basin[J].Lithologic Reservoirs,2007,19(3):28-31.[赵靖舟,吴少波,武富礼.论低渗透储层的分类与评价标准——以鄂尔多斯盆地为例[J].岩性油气藏,2007,19(3):28-31.]
[3]Yang Zhengming,Zhang Yingzhi,Hao Mingqiang,et al.Comprehensive evaluation of reservoir in low-permeability oilfields[J].Acta Petrolei Sinica,2006,27(2):64-67.[杨正明,张英芝,郝明强,等.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64-67.]
[4]Xiong Wei,Lei Qun,Liu Xiangui,et al.Pseudo threshold pressure gradient to flow for low permeability reservoirs[J].Petroleum Exploration and Development,2009,36(2):232-236.[熊伟,雷群,刘先贵,等.低渗透油藏拟启动压力梯度[J].石油勘探与开发,2009,36(2):232-236.]
[5]Zheng Junwei,Yu Lin,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.]
[6]Wang Weimin,Guo Hekun,Ye Chaohui.The evaluation of development potential in low permeability oilfield by the aid of nmr movable fluid detecting technology[J].Acta Petrolei Sinica,2001,22(6):40-44.[王为民,郭和坤,叶朝辉.利用核磁共振可动流体评价低渗透油田开发潜力[J].石油学报,2001,22(6):40-44.]
[7]Wang Ruifei,Shen Pingping,Song Ziqi,et al.Characteristics of micro-pore throat in ultra-low permeability sandstone reservoir[J].Acta Petrolei Sinica,2009,30(4):560-563.[王瑞飞,沈平平,宋子齐,等.特低渗透砂岩油藏储层微观孔喉特征[J].石油学报,2009,30(4):560-563.]
[8]Liu Yuan,Zhu Xiaomin,Zhang Simeng,et al.Microcosmic pore structure in low-moderate permeability reservoir of Fuyu oil layer in Sanzhao sag[J].Natural Gas Geoscience,21(2):270-275.[刘媛,朱筱敏,张思梦,等.三肇凹陷扶余油层中—低渗透储层微观孔隙结构特征及其分类[J].天然气地球科学,2010,21(2):270-275.]
[9]Yang Qiulian,Li Aiqin,Sun Yanni,et al.Classification method for extra-low permeability reservoirs[J].Lithologic Reservoirs,2007,19(4):51-56.[杨秋莲,李爱琴,孙燕妮,等.超低渗储层分类方法探讨[J].岩性油气藏,2007,19(4):51-56.]
[10]Johnston D.Reservoir characterization improves stimulation,completion practices[J].Oil & Gas Journal,2004,102(4):60-63.
[11]Li Zhongxing,Han Hongbao,Cheng Linsong,et al.A new solution and application of starting pressure gradient in ultra-low permeability reservoir[J].Petroleum Exploration and Development,2004,31(3):108-109.[李忠兴,韩洪宝,程林松,等.特低渗油藏启动压力梯度新的求解方法及应用[J].石油勘探与开发,2004,31(3):108-109.]
[12]Shi Dianhai.Flow state distribution of areal radial flow in low permeability sandstone reservoir[J].Petroleum Exploration and Development,2006,33(4):491-494.[时佃海.低渗透砂岩油藏平面径向渗流流态分布[J].石油勘探与开发,2006,33(4):491-494.]
[13]Cheng Qigui,Hu Yong,Wang Deyu,et al.Application of geology and reservoir engineering techniques to Jing′an oilfield[J].Acta Petrolei Sinica,2002,23(6):68-72.[程启贵,胡勇,王德玉,等.靖安油田地质和油藏工程技术应用效果[J].石油学报,2002,23(6):68-72.]
[14]Ran Xinquan,Cheng Qigui,Qu Xuefeng,et al.Study on horizontal well pattern in ultra-low permeability sandstone reservoir[J].Acta Petrolei Sinica,2008,29(4):89-92.[冉新权,程启贵,屈学峰,等.特低渗透砂岩油藏水平井井网形式研究[J].石油学报,2008,29(4):89-92.]

Outlines

/