Xianghua Liu¹, Hai Song¹, Lu Zhao¹, Yan Zheng¹, Neng Yang², Dongling Qiu^2,*

FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.10, pp. 2377-2392, 2024, DOI:10.32604/fdmp.2024.051418 - 23 September 2024

Abstract The segmented water control technology for bottom water reservoirs can effectively delay the entry of bottom water and adjust the production profile. To clarify the impact of different methods on horizontal well production with different reservoir conditions and to provide theoretical support for the scientific selection of methods for bottom water reservoirs, a numerical simulation method is presented in this study, which is able to deal with wellbore reservoir coupling under screen tube, perforation, and ICD (Inflow Control Device) completion. Assuming the geological characteristics of the bottom-water conglomerate reservoir in the Triassic Formation of the… More >

Haihai Dong¹, Yaguang Qu^2,3,*, Ming Liu⁴, Lei Zhang¹, Jiakun Wu⁵

Energy Engineering, Vol.119, No.4, pp. 1681-1695, 2022, DOI:10.32604/ee.2022.019843 - 23 May 2022

Abstract For low permeability sandstone reservoirs, CO₂ flooding has been proved to be an effective method to enhance oil recovery. Reservoir A is a typical conglomerate reservoir in Xinjiang oilfield. The reservoir has strong water sensitivity, and the injection pressure continues to rise. Furthermore the oil well pressure continues to drop. According to the screening conditions of CO₂ flooding, the reservoir A can easily achieve CO₂ miscible flooding with moderate temperature. And the reservoir has the advantage of being close to the gas source. Firstly, the relationship curve between CO₂ oil displacement efficiency and oil displacement pressure was… More >