天然气工业2026，Vol.46Issue(4)：95-101,7.DOI:10.3787/j.issn.1000-0976.2026.04.008
考虑多因素耦合的高含硫气藏固硫沉积数学模型研究与应用
Research and application of a multi-factor coupling numerical simulation model for sulfur deposition in sulfur gas reservoirs
摘要
Abstract
Sulfur deposition occurring during the development of sulfur gas reservoirs may cause reservoir blockage,reduce reservoir permeability,and even stop well production.Existing popular sulfur deposition prediction models neglect the capacity of sour gas to carry sulfur and the particle deposition environment in porous media,making them fail to accurately describe the patterns and reservoir damages of sulfur particle migration and deposition.Based on the results of particle simulation experiments,this paper reviews the patterns of particle deposition in porous media and proposes a new numerical model for solid sulfur particle migration and deposition.Moreover,combined with the experiment-derived reservoir damage model,a numerical simulation model considering solid sulfur particle deposition and reservoir damage is established and then applied to an actual gas reservoir.The following results are obtained.First,the proposed sulfur particle deposition model reflects that the deposition rate is exponentially correlated with particle diameter and pore diameter,and linearly related to gas flow velocity.Second,suspended sulfur is scarce in reservoirs,mainly distributing in and near the wellbore.Sedimentary sulfur is more widely deposited than suspended sulfur,and it is mainly concentrated in reservoirs within 10 m near the wellbore,and occasionally in zones far away from the wellbore—the farther from the wellbore,the less the deposition.Third,the proposed model was applied,for the first time,to the D gas reservoir,simulating the time and location of sulfur deposition and predicting production indicators for 30-year solid sulfur deposition.It is found that sulfur deposition has a remarkable negative impact on the development of gas reservoir.The proposed numerical simulation model can effectively represent the precipitation,migration and deposition of sulfur particles in sulfur gas reservoirs and its damage to reservoirs,providing valuable theoretical evidence and technical support to production predication and process optimization of such reservoirs.关键词
高含硫气藏/硫沉积/固硫颗粒运移/储层伤害/数值模拟Key words
Sulfur gas reservoir/Sulfur deposition/Solid sulfur particle migration/Reservoir damage/Numerical simulation分类
能源科技引用本文复制引用
徐中一,糜利栋,张睿,曾大乾..考虑多因素耦合的高含硫气藏固硫沉积数学模型研究与应用[J].天然气工业,2026,46(4):95-101,7.基金项目
中国石油化工股份有限公司科技项目"普光气田剩余气分布及提高采收率技术"(编号:P23198). 本论文成果受中石化科技部项目(项目编号:P24158)资助,特此感谢. （编号:P23198）
