International Journal of Oil, Gas and Coal Engineering

Volume 9, Issue 3, May 2021

  • Determination of Hydrocarbon-bearing Property of Deep-water Sandstone by Fluid Pressure Gradient from Seismic Attributes

    Chang Deshuang, Chen Zhigang, Han Yuchun, Sun Xing, Chen Jie, Zhao Qian, Zhao Xiaoqing

    Issue: Volume 9, Issue 3, May 2021
    Pages: 36-41
    Received: 27 April 2021
    Accepted: 10 May 2021
    Published: 22 July 2021
    Abstract: In the same hydrodynamic system, because the densities of oil and gas are smaller than that of water, their pressure gradients are also smaller. Therefore, the pressure gradient can determine fluid properties. Based on seismic data and well logging data, this paper attempts to apply the equivalent medium theory to predict the pressure gradient, and... Show More
  • Research of New Demulsifier in Bohai Oilfield

    Ren Yi, Dai Hongcheng, Du Dawei, Cheng Yan, Zhang Liya

    Issue: Volume 9, Issue 3, May 2021
    Pages: 42-45
    Received: 7 July 2021
    Accepted: 22 July 2021
    Published: 2 August 2021
    Abstract: The content of asphalt in an EOR oilfield of Bohai is high, reaching more than 30%, and the content of phenol and naphthenic acid is also high, resulting in high acid value of crude oil. The water content is about 85% - 95%, and it is in the later stage of mining. Because hydrophobically associating PAM is used as oil displacement agent in the plat... Show More