Research on reservoir flow units of Triassic in block-1, Tahe Oilfield

  • CAI Yue ,
  • XIONG Qi ,
  • LI Yong ,
  • DING Yingchao ,
  • XU Wenjie
Expand
  • 1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong ,China; 2. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, Xinjiang, China

Online published: 2014-06-06

Abstract

The research of flow units is the key of deepening and developing reservoir characterization, and it has important theoretical intention and practical value on revealing distribution of remaining oil. Based on establishing classification standard and discriminant of flow units in fluvial and delta facies, this paper classified the reservoir flow units of Triassic in block-1 of Tahe Oilfield, and analyzed the spatial distribution of flow units and its relationship with reservoir architectural structure and remaining oil. The result shows that flow units of the study area can be classified into E(excellent), G (good), M(medium) and P(poor) types, while E and G types have the most extensive distribution, and M and P types have smaller distribution area. Meanwhile, the interlayer and interwell flow units have distinct discrepancy. The E type flow unit has consistent distribution with lateral sandbar, and G type flow unit is corresponding to channel deposit and lengthwise sandbar that are sand reservoir bodies with high porosity and permeability, which means that reservoir architecture has favorable correspondence with flow units. E and G types of flow units are the main digging orientation of remaining oil, while M type is the secondary digging orientation. P type of flow unit has limited geological reserves of remaining oil, therefore has less digging potential.

Cite this article

CAI Yue , XIONG Qi , LI Yong , DING Yingchao , XU Wenjie . Research on reservoir flow units of Triassic in block-1, Tahe Oilfield[J]. Lithologic Reservoirs, 2014 , 26(3) : 119 -124 . DOI: 10.3969/j.issn.1673-8926.2014.03.020

References

[1] 刘海磊,戴俊生,尹鹤,等.塔河油田1 区三叠系隔夹层研究[J].岩性油气藏,2011,23(5):121-126.
[2] Hearn C L,Ebanks W J,Tye R S,et al. Geological factors influencing reservoir performance of the Hartzog Draw field,Wyoming[J]. JPT,1984,36(9):1335-1344.
[3] 窦之林.储层流动单元研究[M]. 北京:石油工业出版社,2000:1-3.
[4] Ebanks W J. Flow-unit concept—Integrated approach to reservoir description for engineering projects [J]. AAPG Bulletin,1987,71(5):551-552.
[5] Rodriguez A,Maraven S A. Facies modeling and the flow unit concept as a sedimentological tool in reservoir description[R]. SPE 18154,1988:465-472.
[6] Amaefule J O,Altunbay M,Tiab D,et al. Enhanced reservoir description:Using core and log data to identify hydraulic (flow) units and predict permeability in uncored intervals wells[R]. SPE 26436,1993:205-220.
[7] 裘怿楠,薛叔浩.油气储层评价技术[M].北京:石油工业出版社,1994:244-247.
[8] 焦养泉,李思田,李祯,等.曲流河与湖泊三角洲沉积体系及典型骨架砂体内部构成分析[M].武汉:中国地质大学出版社,1995:1-2.
[9] 穆龙新,黄石岩,贾爱林.油藏描述新技术[C]∥中国石油天然气总公司石油勘探开发科学研究院.中国石油天然气总公司油气田开发工作会议文集.北京:石油工业出版社,1996:1-10.
[10] 吴胜和.储层表征与建模[M].北京:石油工业出版社,2010:228-229.
Outlines

/