Experimental Study on Sand-Carrying Mechanism and Capacity Evaluation in Water-Producing Gas Wells and Its Application in Artificial Lift Optimization

2014 ◽  
Author(s):  
Changyin Dong ◽  
Yanlong Li ◽  
Qinghua Zhang ◽  
Shengli Feng ◽  
Lihui Zhang
Keyword(s):  
Experimental Study ◽  
Gas Wells ◽  
Artificial Lift ◽  
Capacity Evaluation

A New Artificial Lifting Technology for Gas Wells-Downhole Gas Compression

2013 ◽  
Vol 753-755 ◽  
pp. 2689-2692
Author(s):  
Xiang Liu ◽  
Zhi Chao Qiu ◽  
Chun Zhao
Keyword(s):  
Experimental Study ◽  
New Technology ◽  
Ordos Basin ◽  
Research Progress ◽  
Gas Wells ◽  
Liquid Loading ◽  
Artificial Lift ◽  
Gas Compression ◽  
Effective Drainage ◽  
Gas Fields

Downhole Gas Compression (DGC) is an entirely new powered artificial lift technology specifically for natural gas wells. The technology offers the opportunity to increase production by 30-50%, significantly improve reserves and delay the onset of liquid loading. Key application of DGC is for use in deeper partially depleted reservoir wells encountering liquid loading. The research progress of DGC is introduced in this paper and the results of theoretical and experimental study of DGC are investigated. Moreover, the adaptability and application prospect of this new technology is analyzed. There are many gas fields in China faced with problems about effective drainage and recovery enhancement, such as the mature gas fields in Sichuan and Ordos Basin. DGC will have a good application prospect in China and further study of the DGC technology is recommended.

scholarly journals An Experimental Study on the Pressure Distribution in Horizontal Gas Wells

2020 ◽  
Vol 16 (6) ◽  
pp. 1243-1258
Author(s):  
Jinbo Liu ◽  
Ziheng Jiang ◽  
Xuezhang Feng ◽  
Ruiquan Liao ◽  
Dianfang Feng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pressure Distribution ◽  
Gas Wells

scholarly journals Experimental study on the performance of sand control screens for gas wells

2012 ◽  
Vol 2 (1) ◽  
pp. 37-47 ◽  
Author(s):  
Yan Jin ◽  
Junhai Chen ◽  
Mian Chen ◽  
Fuxiang Zhang ◽  
Yunhu Lu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Gas Wells ◽  
Sand Control

Experimental study of alcoholic retarded acid systems for high temperature gas wells acidizing process

2015 ◽  
Vol 93 ◽  
pp. 576-583 ◽  
Author(s):  
P. Fayzi ◽  
A. Mirvakili ◽  
M.R. Rahimpour ◽  
M. Farsi ◽  
A. Jahanmiri
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Gas Wells ◽  
High Temperature Gas

Modeling the Effects of Various Liquid Droplet Sizes in Acoustic Deliquification Techniques

2021 ◽  
Author(s):  
Eiman Al Munif ◽  
Ahmed Alrashed ◽  
Kanat Karatayev ◽  
Jennifer Miskimins ◽  
Yilin Fan
Keyword(s):  
Fluid Dynamics ◽  
Natural Gas ◽  
Computational Time ◽  
Liquid Droplets ◽  
Gas Wells ◽  
Air Velocity ◽  
Liquid Loading ◽  
Artificial Lift ◽  
Tool Surface ◽  
Droplet Sizes

Abstract Liquid loading is a major challenge in natural gas wells. Enhancing the production in liquid loading natural gas wells using an acoustic liquid atomizer tool is proposed as a possible artificial lift method. The effect of different droplet sizes on the transport efficiency and the performance of the proposed technique during production are studied using Computational Fluid Dynamics (CFD) simulation. Also, the liquid behavior and fluid dynamics after applying the atomization mechanism are reviewed. In the model, the tool is placed axially in the middle of the gas/air flowing wellbore. To reduce computational time, the tool and pipe are cut symmetrically. The pipe diameter is 4 in, and the four injectors diameters are each 0.04 in. The orientation of the injectors is set to 90° with the sprayers facing sideways, while water liquid droplets are injected from the tool surface into the air flow at angles from 45° to the flow direction. Unstructured hybrid mesh is used to allow the cells to assemble freely within the complex geometry. Sensitivity tests were conducted with droplet sizes ranging between 30-300 µm. The CFD results showed that water liquid droplets of size 30 µm followed the pathway along the tool surface due to the low mass of the droplets and high air velocity. This phenomenon is called wall impingement and occurs where the droplets are very small and clustering on the wall. The 200 and 300 µm water liquid droplets kept their inertial high chaotic movements in all directions within the computational fluid domain due to the increased weight of the droplets. These larger sized droplets withstand the backpressure from high turbulent air velocity and tend to keep their inertial turbulent movement. This research presents a set of CFD results to further evaluate acoustic atomization as a possible artificial lift technique. This technique has never been commercially applied in the oil and gas industry, and continued evaluation of such methods is a vital addition to the industry as it brings the potential for new lower cost artificial lift technologies. If completely developed, this technique can bring a cost-effective solution compared to conventional artificial lift methods.

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