Peng Liu¹, Man Chen¹, Zhiguo He¹, Wei Luo^2,3,*, Shiyu Miao^2,3

FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 933-955, 2022, DOI:10.32604/fdmp.2022.019736 - 06 April 2022

Abstract The problem of efficient gas lift for gas well annulus packers that rely on their own energy plungers is considered. The complex related gas-liquid problem is addressed in the frame of model where the gas inflow dynamics and liquid inflow dynamics of the considered shale gas wells are weakly coupled. On this basis, and with the aiding support of indoor simulation experimental data, a new gas plunger lift design taking into account liquid leakage is obtained. Finally, a dedicated software relying on this approach is developed and used to verify the reliability of the model More >

Jinbo Liu¹, Ziheng Jiang², Xuezhang Feng¹, Ruiquan Liao², Dianfang Feng¹, Xingkai Zhang^2,*, Hasimu Aikeremu¹

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.6, pp. 1243-1258, 2020, DOI:10.32604/fdmp.2020.010722 - 17 December 2020

Abstract Laboratory experiments have been carried out to study the fluid flow in the wellbore of a horizontal gas well during the production process. The related pressure distribution has been determined considering different cases (different inflow media, different perforation opening methods and different liquid holdup). It has been found that the larger the fluid flow rate, the greater the pressure changes in the wellbore under the same hole opening mode. The uniformity of the perforation opening method was also an important factor affecting the magnitude of the wellbore pressure change. The liquid holdup also affected the More >

Xingkai Zhang, Xuan Zhang, Ruiquan Liao^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.3, pp. 501-512, 2020, DOI:10.32604/fdmp.2020.09012 - 25 May 2020

Abstract In order to clarify the influence of the instrument’s own drag on the temperature distribution in the horizontal gas wellbore in temperature logging. By constructing an indoor gas-liquid two-phase horizontal tube flow platform, the effects of the drag speed of the instrument on the temperature distribution in the wellbore were studied in the single-phase gas and gas-liquid two phases. In addition, during the process of instrument dragging, the influence of different perforation cluster opening methods and wellbore inclination on temperature distribution was also studied. The results show that the temperature fluctuation is reduced at higher More >

Jingyi Wang¹, Jing Sun^1,*, Dehua Liu¹, Xiang Zhu¹

FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.5, pp. 613-625, 2019, DOI:10.32604/fdmp.2019.08782

Abstract One of the important indicators of shale gas reservoir excavation is capacity evaluation, which directly affects whether large-scale shale gas reservoirs can be excavated. Capacity evaluation is the basis of system analysis and dynamic prediction. Therefore, it is particularly important to conduct capacity evaluation studies on shale gas horizontal wells. In order to accurately evaluate the horizontal well productivity of shale gas staged fracturing, this paper uses a new method to evaluate the productivity of Fuling shale gas. The new method is aimed at the dynamic difference of horizontal wells and effectively analyzes the massive More >

Mengna Liao^1,2, Ruiquan Liao^1,2, Jie Liu^1,2,*, Shuangquan Liu³, Li Li³, Xiuwu Wang^1,2, Yang Cheng^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.5, pp. 527-544, 2019, DOI:10.32604/fdmp.2019.07903

Abstract The ability to predict liquid loading in horizontal gas wells is of great importance for determining the time of drainage and optimizing the related production technology. In the present work, we describe the outcomes of experiments conducted using air-water mixtures in a horizontal well. The results show that the configuration with an inclined section is the most susceptible to liquid loading. Laboratory experiments in an inclined pipe were also conducted to analyze the variation of the critical gas flow rate under different angles, pressure and liquid volume (taking the equal liquid volume at inlet and More >

Jin Pang^1,*, Di Luo², Haohong Gao³, Jie Liang⁴, Yuanyuan Huang¹, Qi Liu³

FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.1, pp. 39-51, 2019, DOI:10.32604/fdmp.2019.06136

Abstract High-pressure deep shale gas reservoirs are usually highly stress-sensitive. When the reasonable production mode of shale gas well is built, the impact of strong stress sensitivity should be fully considered. First, this study calculated the relationship between permeability and formation pressure under different elastic modulus based on the shale lithology of Long Ma Xi formation in Sichuan Basin by testing and analysing the mechanical parameters of the rock. According to numerical simulation result, when the elastic modulus exceeds 14.0 GPa, the stress sensitivity of the matrix will slight affect the cumulative gas production of shale… More >