Lithologic Reservoirs ›› 2010, Vol. 22 ›› Issue (4): 85-88.doi: 10.3969/j.issn.1673-8926.2010.04.015

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“Inverse ΔlogR” method and its application to evaluation of organic matter abundance of source rocks

LIU Jingdong1，SUN Bo1，TIAN Chao1，YUAN Guowei2，YU Jingfeng3
  

  1. 1. Faculty of Geo-Resources and Information， China University of Petroleum， Qingdao 266555， China； 2. No.4 Oil Production Plant， Changqing Oilfield Company， PetroChina， Yinchuan 751200， China； 3. Xinjiang Oilfield Company， PetroChina， Karamay 834000， China
  • Online:2010-12-15 Published:2010-12-15

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Abstract:

Logging method is the common method for fine evaluation of heterogeneous source rock. However, a number of factors such as the maturity and density of source rock are not considered completely by existing methods. The “Inverse ΔlogR” method which considered both the maturity of source rocks and different log responses is proposed, and took Kar 7 well as an example to calculate the organic carbon content of source rocks from 2 285 m to 2 985 m by using this method. The fact that the results are relatively consistent with the measured results proved the exactness and feasibility of this method.

Key words: sensitivity, velocity sensitivity, water sensitivity, salt sensitivity, reservoir damage, Daniudi Gasfield

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