西南石油大学学报(自然科学版)

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Experimental Studies on Oil and Gas Coordinated Development#br# Mechanism of Oil Rim Reservoirs

Liu Jia1,2*, Cheng Linsong2, Fan Zifei3, Huang Shijun2, Zhang Jian4   

  1. 1. CNOOC Research Center,Chaoyang,Beijing 100028,China
    2. College of Petroleum Engineering,China University of Petroleum(Beijing),Changping,Beijing 102249,China
    3. Research Institute of Petroleum Exploration and Development,Haidian,Beijing 100083,China
    4. Australia Project Technical Group,International Exploration and Production Corporation,SINOPEC,Haidian,Beijing 100083,China
  • Online:2015-10-01 Published:2015-10-01

Abstract:

In order to study the mechanism of oil and gas coordinated development in oil rim reservoirs,three-dimensional
visualized gas-cap reservoir physical simulation device was established to simulate the processes of oil and gas development
at different gas production rates. Monitoring and records of the interface migration law and well performance can be realized
through visualization window. According to experimental results,migration speed of oil-gas interface was reduced with increasing
gas production rates while migration speeds of internal and external oil-gas interfaces gradually became close,which
effectively slows down occurrence of gas channeling,reduces production gas oil ratio and increases the swept volume of gas
drive,so as to improve its development effect. And by means of the material balance principle,engineering methods for gas-cap
oil-rim reservoir by collaborative development are worked out to deduce the migration law of oil gas interface under different
development methods. When the gas production rate is small while the gas production rate is big,the oil gas interface tends to
intrude oil rim in a much slower way,and proper oil production rate and gas production rate can maintain the balance of oil gas
interface.

Key words: oil rim reservoir, migration law of oil-gas interface, indoor experiment, numerical experiment, reservoir engineering

CLC Number: