scholarly journals Study of Corrosion Mechanism of Sour Gas to Cement Stone in PUGUANG Gas Field

Author(s):  
Zeng Yijin
2012 ◽  
Vol 485 ◽  
pp. 429-432
Author(s):  
Ling Feng Li ◽  
Xiao Ming Liu ◽  
Zhi Qiang Huang

For natural gas well with high content of CO2 and H2S, very serious corrosion in the gas well string is an important factor of gas production system life. In order to ensure the long-term development of gas wells, this paper mainly study the corrosion-resistant material selection of tubing and casing in sour gas reservoirs under coexistence of H2S and CO2 and proposes the optimization idea and technique of tubing and casing material selection. By taking Puguang gas field as an example, this paper optimizes the material selection of production casing for Puguang gas field. By testing, the optimal materials of gas well string in Puguang gas field have good performance of erosion resistance


2019 ◽  
Author(s):  
Azis Hidayat ◽  
Dwi Hudya Febrianto ◽  
Elisa Wijayanti ◽  
Diniko Nurhajj ◽  
Ahmad Sujai ◽  
...  

2021 ◽  
Author(s):  
Bashirul Haq

Abstract Sour gas reservoirs are vital sources for natural gas production. Sulphur deposition in the reservoir reduces a considerable amount of gas production due to permeability reduction. Consequently, well health monitoring and early prediction of Sulphur deposition are crucial for effective gas production from a sour gas reservoir. Dynamic gas material balance analysis is a useful technique in calculating gas initially in place utilizing the flowing wellhead or bottom hole pressures and rates during the well's lifetime. The approach did not apply to monitor a producing gas's health well and detect Sulphur deposition. This work aims to (i) modify dynamic gas material balance equation by adding the Sulphur deposition term, (ii) build a model to predict and validate the issue utilizing the modified equation. A unique form of the flowing material balance is developed by including Sulphur residue term. The curve fitting tool and modified flowing gas material balance are applied to predict well-expected behaviour. The variation between expected and actual performance indicates the health issue of a well. Initial, individual components of the model are tested. Then the model is validated with the known values. The workflow is applied to active gas field and correctly detected the health issue. The novel workflow can accurately predict Sulphur evidence. Besides,the workflow can notify the production engineers to take corrective measures about the subject. Keywords: Sulfur deposition, Dynamic gas material balance analysis, Workflow


2009 ◽  
Vol 83 (1) ◽  
pp. 136-145 ◽  
Author(s):  
Fang HAO ◽  
Tonglou GUO ◽  
Chunguo DU ◽  
Huayao ZOU ◽  
Xunyu CAI ◽  
...  

Author(s):  
Wu Liu ◽  
Jianfeng Shang ◽  
Hongsong Wang ◽  
Donghui Zhao ◽  
Yu Zou

Abstract The gathering and transportation pipeline known as Line 1 of Puguang gas field havs the characteristics of wet gathering and transportation containing high sulfur content, large drops and effusion in low-lying areas. In the process of one pigging operation on the site, the surge volume provided by the No. 1 separator in the master gas gathering station was not effectively utilized and the time intervals for the neighboring pipeline sections were too long. In this paper, we designed several pigging proposals. OLGA was applied to analyze the operating parameter changes for the gathering and transportation pipeline Line 1, which finally determined a reasonable pigging sequence. We designed and selected the "critical pigging proposal", which the time duration for the pigging operation of the seven pipeline sections was decreased to 16.91h. Guided by the "critical pigging proposal", the downstream pipeline sections will be challenged by the risks of ice blockage. The ground eddy device was improved in the article, for the purpose of draining effusions in low-lying areas in the Puguang gas field and controlling the slug flow. In addition, the application effects of the device were analyzed.


2014 ◽  
Author(s):  
Ardian Nengkoda ◽  
Mofeed Awwami ◽  
Xiaolong Cai ◽  
Jamal Mufleh ◽  
Bader Harbi ◽  
...  

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