Effect of Sulfur Deposition on Rock Permeability in Sour Gas Reservoir

2010 ◽  
Author(s):  
Guo Xiao ◽  
Zhimin Du ◽  
Wang Li
Keyword(s):  
Sulfur Deposition ◽  
Gas Reservoir ◽  
Rock Permeability ◽  
Sour Gas

Laboratory and Simulation Investigation of Sulfur Deposition in Sour Gas Reservoir

2006 ◽  
Author(s):  
Xiao Guo ◽  
Zhimin Du ◽  
Yong Zhang ◽  
Li Wang ◽  
Zhuangzhi Shu
Keyword(s):  
Sulfur Deposition ◽  
Gas Reservoir ◽  
Sour Gas

Productivity Prediction of Horizontal Well with Sulfur Deposition in Sour Gas Reservoir

2012 ◽  
Vol 268-270 ◽  
pp. 1207-1211
Author(s):  
Jing Hong Hu ◽  
Zhi Ping Li ◽  
Lei Wang ◽  
Ling Ye Meng ◽  
Ju Hong Lu
Keyword(s):  
Horizontal Well ◽  
Elemental Sulfur ◽  
Sulfur Deposition ◽  
Gas Reservoir ◽  
Reservoir Heterogeneity ◽  
The Real ◽  
Reservoir Development ◽  
Initial Stage ◽  
Productivity Prediction ◽  
Sour Gas

With the development of sour gas reservoir, the utilization of horizontal well technology has a great significance. The accurate prediction of the productivity of horizontal well in developing sour gas reservoir will become more and more important. In this paper, productivity prediction formulas of the horizontal well are established with considering the effect of sulfur deposition on permeability. The effects of the length of horizontal well, the effective thickness of the reservoir, elemental sulfur deposition and reservoir heterogeneity on productivity can be analyzed by established formulas. According to the field case, the calculating results of improved Joshi’s equation approaches the real productivity, which means that it could be used to predict the productivity of horizontal well at initial stage during sour gas reservoir development. The results can be used as a reference for the development of similar sour gas reservoir.

Distribution of sulfur deposition near a wellbore in a sour gas reservoir

2012 ◽  
Vol 10 (1) ◽  
pp. 015005 ◽  
Author(s):  
Jinghong Hu ◽  
Xuefeng Yang ◽  
ShunLi He ◽  
Jinzhou Zhao
Keyword(s):  
Sulfur Deposition ◽  
Gas Reservoir ◽  
Sour Gas

Effect of sulphur deposition on well performance in a sour gas reservoir

2017 ◽  
Vol 96 (4) ◽  
pp. 886-894 ◽  
Author(s):  
Jinghong Hu ◽  
Zhengdong Lei ◽  
Zhangxin Chen ◽  
Zhanguo Ma
Keyword(s):  
Well Performance ◽  
Gas Reservoir ◽  
Sulphur Deposition ◽  
Sour Gas

A Dynamic Workflow of Well Health Issue Prediction – Sulfur Deposition

2021 ◽  
Author(s):  
Bashirul Haq
Keyword(s):  
Material Balance ◽  
Gas Production ◽  
Health Issue ◽  
Sulfur Deposition ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Actual Performance ◽  
Sulphur Deposition ◽  
Balance Analysis ◽  
Sour Gas

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

Modeling of sulfur plugging in a sour gas reservoir

2013 ◽  
Vol 11 ◽  
pp. 18-22 ◽  
Author(s):  
Jinghong Hu ◽  
Shunli He ◽  
Jinzhou Zhao ◽  
Yongming Li
Keyword(s):  
Gas Reservoir ◽  
Sour Gas

scholarly journals Investigating on the Prediction Model of Sulfur Deposition in High Sour Gas-Well

2012 ◽  
Vol 29 ◽  
pp. 4267-4272 ◽  
Author(s):  
Zeng Shun-peng ◽  
Yang Xiu-wen ◽  
Zhang Qi-min ◽  
Xu Chun-bi ◽  
Liu Jingcheng ◽  
...  
Keyword(s):  
Prediction Model ◽  
Sulfur Deposition ◽  
Gas Well ◽  
Sour Gas

An Approach and Case Study on Determination of the Sulfur Deposition Radius in High Sulfur Gas Reservoir

2014 ◽  
Vol 1073-1076 ◽  
pp. 592-596
Author(s):  
Pei Luo ◽  
Yu Ming Luo ◽  
Kai Ma ◽  
Biao Zhang ◽  
Sha Sha Song
Keyword(s):  
Sulfur Deposition ◽  
Mixed Gas ◽  
Gas Reservoir ◽  
Gas Field ◽  
Gas Well ◽  
Pressure Transient ◽  
Field Development ◽  
Eastern Sichuan Basin

In the process of high sulfur gas field development, the sulfur will separate out from the mixed gas when the pressure near wellbore area drops to a critical pressure of H2S. This will reduce the reservoir porosity greatly and decrease the gas well productivity as well. This paper discusses the characteristics of pressure transient testing plots when sulfur deposition occurs based on the redial composite reservoir model. And introduce an approach to determine the sulfur deposition radius near the wellbore with pressure transient testing interpretation in high sulfur gas reservoir. The method has been applied in some high sulfur gas field in eastern Sichuan Basin. The result shows that the method is simple and practical.

scholarly journals Experimental Study on the Elemental Sulfur Solubility in Sour Gas Mixtures

2021 ◽  
Vol 9 ◽  
Author(s):  
Rui Zhang ◽  
Shaohua Gu ◽  
Liang Huang ◽  
Daqian Zeng ◽  
Tong Li ◽  
...  
Keyword(s):  
Experimental Data ◽  
Elemental Sulfur ◽  
Large Error ◽  
Gas Mixtures ◽  
Type Model ◽  
Gas Reservoir ◽  
Sulfur Solubility ◽  
Experimental Conditions ◽  
Increasing Temperature ◽  
Sour Gas

The investigation of elemental sulfur solubility plays critical roles on sour gas reservoir development. In this paper, the solubility of elemental sulfur was directly measured by static method with gas samples from well M1 of a sour gas reservoir in Sichuan Basin. The results show that the solubility of elemental sulfur ranges from 0.001 g/cm3 to 0.968 g/cm3 at 40–98.9 MPa and 15–49.8 MPa. The elemental sulfur solubility increases with increasing temperature and pressure, especially when the pressure is greater than 30 MPa. Moreover, the H2S content in sour gas mixtures is also an important factor affecting elemental sulfur solubility. The elemental sulfur solubility increases with increasing H2S content of the sour gas mixtures. The experimental data in this paper display a consistent trend with the reported experimental data. Based on the experimental results, the chrastil-type model, Robert’s model and Hu’s model were investigated and compared. The results show that the chrastil-type model by fitting experimental data in this paper has less error and higher accuracy in calculating elemental sulfur solubility in M gas reservoir. The chrastil-type models proposed in the literature, meanwhile, are only based on the regression of specific gas components and experimental conditions, which lead to a large error in the calculation of elemental sulfur solubility of sour gas samples in this research. The research results provide important basic data and technical support for the development of M gas reservoir.

scholarly journals A Model for Predicting Elemental Sulphur Induced Permeability Damage in a Fractured Sour Gas Reservoir

2020 ◽  
Author(s):  
Gbadegesin Adeyemi ◽  
Adesina Fadairo ◽  
Temitope Ogunkunle ◽  
Adebowale Oladepo ◽  
Amachree Alozie ◽  
...  
Keyword(s):  
Elemental Sulphur ◽  
Gas Reservoir ◽  
Permeability Damage ◽  
Sour Gas
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