新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (3): 279-280.

• 油藏工程 • 上一篇    下一篇

用动态分析法确定靖边下奥陶统气藏侵蚀沟边界

王作乾1, 康秀兰2, 何顺利3   

  1. 1.中国石油 勘探开发研究院,北京 100083;
    2.中国石油 大庆油田有限责任公司 测试技术服务分公司,黑龙江 大庆 163853;
    3.中国石油大学 石油 天然气工程学院,北京 102249
  • 收稿日期:2009-11-05 发布日期:2020-09-17
  • 作者简介:王作乾(1979-),男,山东梁山人,在读博士研究生,石油地质,(Tel)010-83592271(E-mail)quietgulf@yahoo.com.cn.

Determination of Grooves Boundary of Lower Ordovician Gas Reservoir in Jingbian Gas Field with Dynamic Analysis Method

WANG Zuo-qian1, KANG Xiu-lan2, HE Shun-li3   

  1. 1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
    2. Logging & Testing Services Company, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163853, China;
    3. Faculty of Oil and Gas Engineering, China University of Petroleum, Beijing 102249, China
  • Received:2009-11-05 Published:2020-09-17

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摘要： 靖边气田下奥陶统气藏马家沟组五段侵蚀沟异常发育,过去对它的研究主要是利用钻井、地震波形及古风化壳上下地层补偿关系进行定性或半定量识别,这些方法对规模较大的侵蚀沟刻画精度较高,但对规模稍小的井间二、三级侵蚀沟较难准确辨别。用试井分析和动态法验证了井间二、三级侵蚀沟的存在,为精细刻画地质模型提供了依据。结合钻井约束、地震波形等特征,验证下奥陶统气藏存在一级侵蚀沟16 条,二级侵蚀沟83 条,三级侵蚀沟206 条。

关键词: 动态方法, 侵蚀沟边界, 试井分析, 产量不稳定分析法

Abstract: Grooves are extremely developed in No.5 Member of Majiagou formation of the Lower Ordovician in Jingbian gas reservoir. In the past, the grooves were studied mainly by drilling, seismic waveform and compensation relationship between upper and lower layer of paleo-weathering crust for qualitative and semi-quantitative identification. The large scale grooves could be identified easily, while the small scale (second-tertiary class) cross-well grooves were difficult to identify. This paper verifies the existence of such grooves boundary by using dynamic methods such as well test analysis and production transient analysis, providing basis for fine depicting the geologic model. Combined with drilling constraints, seismic waveform and arc length parameters, there exist 16 primary grooves, 83 secondary grooves and 206 tertiary grooves in Lower Ordovician gas reservoir in this area.

Key words: dynamic method, groove boundary, well test analysis, production transient analysis

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