Improving Existing Drainage and Gas Recovery Technologies: An Experimental Study on the Wellbore Flow in a Horizontal Well

被引：0

作者：

Jin, Shan ^{[1
,2
,3
]}

Bai, Xiaohong ^{[4
]}

Luo, Wei ^{[1
,2
,3
]}

Li, Li ^{[4
]}

Liao, Ruiquan ^{[1
,2
,3
]}

机构：

[1] School of Petroleum Engineering, Yangtze University, Wuhan

[2] Laboratory of Multiphase Pipe Flow of Gas Lift Innovation Center, CNPC (Yangtze University), Wuhan

[3] The Branch of Key Laboratory of CNPC for Oil and Gas Production, Yangtze University, Jingzhou

[4] Oil & Gas Technology Research Institute, Changqing Oilfield Branch Company, PetroChina, Xi’an

来源：

Fluid Dynamics and Materials Processing | 2020年 / 16卷 / 06期

基金：

中国国家自然科学基金;

关键词：

flow pattern; gas lift; gas-liquid two-phase flow; Horizontal well; pressure; pressure drop;

D O I：

10.32604/FDMP.2020.011051

中图分类号：

学科分类号：

摘要：

With the increasing number of horizontal wells with low pressure, low yield, and water production, the phenomenon of water and liquid accumulation in gas wells is becoming progressively more serious. In order to fix these issues, it is necessary to improve existing drainage and gas recovery technologies, increase the fluid carrying capacity of these wells, and ensure that the bottom-hole airflow has enough energy to transport the liquid to the wellhead. Among the many techniques of drainage and gas recovery, the gas lift has recently become a popular method. In the present study, through the simulation of the entire horizontal well, the flow regularity of the whole wellbore during the lift of low-pressure gas has been analyzed. The pressure distribution, liquid holdup rate, flow pattern, and energy loss (including gravity loss and friction loss) have been determined using the Beggs-brill approach. It has been found that the total pressure drop of the wellbore decreases first and increases gradually after reaching a minimum value when gas extraction is carried out via gas lift. Based on the analysis of the influence of the injection volume on wellbore pressure drop and the influence of flow pattern on the lifting efficiency, the optimal gas-lift injection parameters have been determined by taking the minimum pressure loss of wellbore as the judgment criterion. © (2020), (Tech Science Press). All rights reserved.

引用

页码：1229 / 1242

页数：13

共 20 条

[11]

Liu Y. H., Luo C. C., Liu T., Ren G., Wang Z., Prediction of gas-liquid two-phase flow patterns in horizontal gas wells, Journal of Southwest Petroleum University (Science & Technology Edition), 41, 3, pp. 107-112, (2019)

[12]

Li H., Guo P., Liu W., Comparative study on continuous fluid carrying model of gas well, Fault—Block Oil & Gas Field, 9, 6, pp. 39-41, (2002)

[13]

Tian X. L., Jiang H. Y., Yue Y. R., Research on production law for water drainage and gas production by gas lift, Fault-Block Oil & Gas Field, 19, 6, pp. 760-763, (2012)

[14]

Sun J., Liu D., Zhu X., Huang W., Cheng L., Experimental investigation on the pressure propagation mechanism of tight reservoirs, Fluid Dynamics & Materials Processing, 16, 3, pp. 425-440, (2020)

[15]

You J., Rahnema H., Numerical modeling of multiphase steam flow in wellbore, Journal of Petroleum Science and Engineering, 164, 1, pp. 259-277, (2018)

[16]

Liu Y. F., Qiu Z. S., Zhao C., Nie Z., Zhong H. Y., Et al., Characterization of bitumen and a novel synergistic method for reducing bitumen viscosity with nanoparticles, ethyl cellulose, and cationic surfactants, RSC Advances, 10, 18, pp. 10471-10481, (2020)

[17]

Liu Y., Su Y., Wu Z., Luo W., Liao R., Effect of the inclination angle on slippage loss in gas-liquid two-phase flow, Fluid Dynamics & Materials Processing, 16, 3, pp. 475-488, (2020)

[18]

Liu Y. F., Qiu Z. S., Zhong H. Y., Nie Z., Li J., Et al., Bitumen recovery from crude bitumen samples from halfaya oilfield by single and composite solvents-process, parameters, and mechanism, Materials, 13, 17, pp. 26-56, (2020)

[19]

Wang Z., Luo W., Liao R., Xie X., Han F., Et al., Slug flow characteristics in inclined and vertical channels, Fluid Dynamics & Materials Processing, 15, 5, pp. 583-595, (2019)

[20]

Liao M., Liao R., Liu J., Liu S., Li L., Et al., On the development of a model for the prediction of liquid loading in gas wells with an inclined section, Fluid Dynamics & Materials Processing, 15, 5, pp. 527-544, (2019)

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