新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (3): 318-319.

• 应用技术 • 上一篇    下一篇

钻井泥浆对油层污染程度的测井评价方法

李建明1, 吴锡令2, 赵立新3   

  1. 1.陕西延长石油 有限责任公司 研究院,西安 710075;
    2.中国石油大学 测井研究中心,北京 102249;
    3.中国海洋石油 总公司,北京 100027
  • 收稿日期:2009-09-21 修回日期:2010-02-09 发布日期:2020-09-17
  • 作者简介:李建明(1978-),男,河北泊头人,工程师,地球物理勘探,(Tel)029-88899568(E-mail)jianmingli@yahoo.cn.
  • 基金资助:
    中国海洋石油总公司项目(2004-09)

A Well Logging Method for Evaluating Effect of Drilling Mud on Formation Contamination

LI Jian-ming1, WU Xi-ling2, ZHAO Li-xin3   

  1. 1. Research Institute of Shaanxi Yanchang Petroleum (Group) Corporation, Xi'an, Shaanxi 710075, China;
    2. Well Logging Research Center, China University of Petroleum, Beijing 102249, China;
    3. CNOOC, Beijing 100027, China
  • Received:2009-09-21 Revised:2010-02-09 Published:2020-09-17

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摘要： 在研究泥浆侵入地层引起的测井响应变化的基础上,应用地层含水饱和度的变化,建立了钻井泥浆污染类型的判别方法;根据渗透率和孔隙度的关系,建立了渗透率损害定量评价模型;运用电极系数,建立了泥浆污染半径的估算式。通过应用现场资料对该方法进行检验,测井评价表皮系数与钻杆测试(DST)计算表皮系数较为吻合。

关键词: 钻井, 泥浆, 污染, 测井, 评价

Abstract: The well logging response variation caused by drilling mud invasion into formation is studied, by which the method for distinguishing the formation contamination or damage type is presented, combined with water saturation change; the model for quantitative assessment of permeability damage is developed by means of the relationship between permeability and porosity, and the formula for calculating damage radius is given using the coefficient of the normal device. Case study indicates that the skin factor from well logging is well accordant with that from drill stem test (DST) by using this method.

Key words: drilling, mud, formation contamination, permeability damage, well logging, evaluation, assessment

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