西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (1): 135-139.

• 石油与天然气工程 • Previous Articles     Next Articles

Investigating the Saturation Distribution Measurement Method for thePhysical Model of High-pressure and Large-thick Reservoirs

Pei Bailin1, Zeng Ming2, Liu Cheng1   

  1. 1. Institute of Petroleum Engineering，China University of Petroleum，Changping，Beijing 102249，China2. Institute of Mechanical Engineering，China University of Petroleum，Changping，Beijing 102249，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-02-01 Published:2013-02-01

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Abstract: Current research on saturation distribution of physical model focuses on the one-dimensional small rock sample and
two-dimensional thin model，and research on high-pressure and large-thick reservoirs model has been involved. In this paper，
the timing stable gamma ray test to each model grid node is implemented with high precision two-dimension Computerized
Numerical Control（CNC）mobile positioning system，and then the saturation of each grid node is calculated through Lambert
Law. Afterwards，reservoir saturation profile is obtained using mathematical drawing method and the prediction of saturation
distribution measurement in high-pressure and big-thick reservoir physical model is finally realized. After a single point testing
and a simple replication experiment，this method is proved to be feasible and accurate and significant to predict the saturation
distribution of high-pressure and large-thick reservoir model.

Key words: reservoir physical simulation, saturation distribution, high-pressure and large-thick reservoir, gamma measurementmethod