考虑相态变化的高含硫气井硫析出预测模型

doi:10.3969/j.issn.1006-6535.2025.02.016

特种油气藏 ›› 2025, Vol. 32 ›› Issue (2): 123-130.DOI: 10.3969/j.issn.1006-6535.2025.02.016

考虑相态变化的高含硫气井硫析出预测模型

李朋¹, 邓虎成¹, 张楚越², 鲁杰³, 张小菊⁴, 黄亮¹

1.成都理工大学能源学院,四川成都 610059;
2.中国石油西南油气田分公司川西北气矿,四川江油 621741;
3.中国石油西南油气田分公司,四川成都 610041;
4.成都理工大学地球科学学院,四川成都 610059

收稿日期:2024-05-21 修回日期:2025-01-12 出版日期:2025-04-25 发布日期:2025-06-16
作者简介:李朋(1989—),男,讲师,2013年毕业于长江大学石油工程专业,2021年毕业于中国石油大学(华东)油气田开发工程专业,获博士学位,现主要从事油气藏渗流、井筒多相流等方面的研究工作。
基金资助:
国家自然科学基金“川南龙马溪组页岩干酪根中气水赋存特征与孔隙变形机理”(5220042480);四川省自然科学基金“深层页岩变形孔隙中水-CH₄-CO₂微观赋存及动用规律”(2023NSFSC0947);成都理工大学科研启动基金(10912-KYQD2023-09801)

Predictive model for sulfur precipitation in high-sulfur gas wells considering phase change

LI Peng¹, DENG Hucheng¹, ZHANG Chuyue², LU Jie³, ZHANG Xiaoju⁴, HUANG Liang¹

1. College of Energy Chengdu University of Technology, Chengdu, Sichuan 610059, China;
2. Northwestern Sichuan Gas District, PetroChina Southwest Oil & Gas Field Company, Jiangyou, Sichuan 621741, China;
3. PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610041, China;
4. College of Earth Science, Chengdu University of Technology, Chengdu, Sichuan 610059, China

Received:2024-05-21 Revised:2025-01-12 Online:2025-04-25 Published:2025-06-16

摘要/Abstract

摘要： 为准确预测高含硫气藏气井井筒压力、温度和硫析出规律,考虑井斜角影响以及硫的气液固3种相态特征,基于质量、动量和能量守恒定律,建立高含硫气藏气井井筒压力、温度和硫析出预测模型,并采用有限差分法和迭代法求解模型。利用现场数据,优选压缩因子算法,在验证模型准确性的基础上,预测井筒压力、温度和硫析出变化规律,并进行井筒压力和硫析出规律影响因素研究。研究表明:采用DPR算法计算压缩因子,预测的井筒压力、温度与实测数据相比,平均相对误差最小,分别为0.93%和1.06%。井筒内流体流动为单一气相和气-固两相流,不存在气-液两相流;随产气量、H₂S含量、硫颗粒初始溶解度增加以及井斜角减小,井筒压力变化幅度均逐渐增大;产气量越大,硫析出位置越靠近井口,析出硫体积越大;H₂S含量越高,硫析出位置距井口越近,析出硫体积越小;硫颗粒初始溶解度和井斜角越大,硫析出位置距井口越远,析出硫体积越大。该研究可为高含硫气藏的高效开发提供技术支撑。

关键词: 高含硫气井, 井筒, 气液固三相, 井筒压力, 井筒温度, 硫析出预测模型

Abstract: To accurately predict the wellbore pressure,temperature,and sulfur precipitation patterns in high-sulfur gas reservoirs,based on the law of conservation of mass,momentum and energy,a predictive model for wellbore pressure,temperature,and sulfur precipitation in high-sulfur gas reservoirs was established with the comprehensive considerations of the influence of well deviation angle and gas-liquid-solid phase characteristics of sulfur;the finite difference method and iterative techniques model were used to solve the model;the compressibility factor algorithm was optimize based on field data;predictions of wellbore pressure,temperature,and sulfur precipitation trends were made after validating the accuracy of the model;and the influencing factors of wellbore pressure and sulfur precipitation patterns were studied.The results show that using the DPR algorithm for calculating the compressibility factor yields the smallest average relative errors in predicting wellbore pressure and temperature,at 0.93% and 1.06%,respectively.The fluid flow inside the wellbore is characterized as either single-phase gas or gas-solid two-phase flow,with no gas-liquid two-phase flow present.With the increase of gas production rates,H₂S content,initial solubility of sulfur particles,and the decrease of well inclination,the variation range of wellbore pressure changes mounts gradually.Higher gas production rates result in sulfur precipitation closer to the wellhead with larger volumes of precipitated sulfur;higher H₂S content leads to sulfur precipitation closer to the wellhead with smaller volumes of precipitated sulfur;larger initial solubilities of sulfur particles and greater well inclinations push the precipitation location further from the wellhead,resulting in larger volumes of precipitated sulfur.This research provides technical support for the efficient development of high-sulfur gas reservoirs.

Key words: high-sulfur gas well, wellbore, gas-liquid-solid three-phase, wellbore pressure, wellbore temperature, sulfur precipitation prediction model

中图分类号:

TE375

李朋, 邓虎成, 张楚越, 鲁杰, 张小菊, 黄亮. 考虑相态变化的高含硫气井硫析出预测模型[J]. 特种油气藏, 2025, 32(2): 123-130.

LI Peng, DENG Hucheng, ZHANG Chuyue, LU Jie, ZHANG Xiaoju, HUANG Liang. Predictive model for sulfur precipitation in high-sulfur gas wells considering phase change[J]. Special Oil & Gas Reservoirs, 2025, 32(2): 123-130.

参考文献

[1] TANYS,LIHT,ZHOU X,et al.Inflow characteristics of horizontal wells in sulfur gas reservoirs-a comprehensive experimental investigation[J].Fuel,2019,239:267-274.
[2] FU L,HU J H,ZHANG Y,et al.Investigation on sulfur solubility in sour gas at elevated temperatures and pressures with an artificial neural network algorithm[J].Fuel,2020,262:1-10.
[3] 郭肖,陈亚丽,石建军,等.高含硫斜度井井筒硫沉积规律预测[J].大庆石油地质与开发,2021,40(1):74-80.
GUO Xiao,CHEN Yali,SHI Jianjun,et al.Prediction of the sulfur deposition law in the wellbore of high-sulfur deviated wells[J].Petroleum Geology and Oilfield Development in Daqing,2021,40(1):74-80.
[4] 吴晓东,吴晗,韩国庆,等.考虑井筒硫析出的高含硫气井井筒温度、压力场计算新模型[J].天然气工业,2011,31(9):69-72.
WU Xiaodong,WU Han,HAN Guoqing,et al.A new model for calculating wellbore temperature and pressure field of high-sulfur gas wells considering wellbore sulfur precipitation[J].Natural Gas Industry,2011,31(9):69-72.
[5] HU J H,HE S L,ZHAO J Z,et al.Modeling of sulfur plugging in a sour gas reservoir[J].Journal of Natural Gas Science and Engineering,2013,11:18-22.
[6] 刘成川,王本成.元坝气田超深层高含硫气井硫沉积预测[J].科学技术与工程,2020,20(6):2223-2230.
LIU Chengchuan,WANG Bencheng.Prediction of sulfur deposition in ultra-deep and high-sulfur gas well of Yuanba Gas Field[J].Science Technology and Engineering,2020,20(6):2223-2230.
[7] LIU Wenguan,HUANG Xin,ZHANG Le,et al.Analysis of sulfur deposition for high-sulfur gas reservoirs[J].Petroleum Science and Technology,2022,40(14):1716-1734.
[8] SUN F R,YAO Y D,LI X F.The heat and mass transfer characteristics of superheated steam coupled with non-condensing gases in horizontal wells with multi-point injection technique[J].Energy,2018,143:995-1005.
[9] ZHANG Y Y,LI P,SUN X F,et al.Steam conformance investigation of flow control devices deployed in SAGD injection and production horizontal wells[J].Journal of Petroleum Science and Engineering,2021,205:1-14.
[10] SUN F R,YAO Y D,CHEN M Q,et al.The flow and heat transfer characteristics of superheated steam in offshore wells and analysis of superheated steam performance[J].Energy,2017,125:795-804.
[11] HU J H,ZHAOJ Z,WANG L,et al.Prediction model of elemental sulfur solubility in sour gas mixtures[J].Journal of Natural Gas Science and Engineering,2014,18:31-38.
[12] SHAO M R,YANG Q,ZHOU B,et al.Effect of sulfur deposition on the horizontal well inflow profile in the heterogeneous sulfur gas reservoir[J].ACS Omega,2021,6:5009-5018.
[13] GU H,CHENG L S,HUANG S J,et al.Prediction of thermophysical properties of saturated steam and wellbore heat losses in concentric dual-tubing steam injection wells[J].Energy,2014,75:419-428.
[14] 罗红文,张琴,李海涛,等.基于分布式光纤测温的致密油水平井产出剖面解释方法[J].特种油气藏,2023,30(4):104-112.
LUO Hongwen,ZHANG Qin,LI Haitao,et al.Tight oil horizontal well production profile interpretation method based on distributed temperature sensing[J].Special Oil & Gas Reservoirs,2023,30(4):104-112.
[15] GUO X,WANG Q.A new prediction model of elemental sulfur solubility in sour gas mixtures[J].Journal of Natural Gas Science and Engineering,2016,31:98-108.
[16] QIN P X,LIU J Y.Modeling sulfur plugging of fractured wells under non-Darcy and non-equilibrium sulfur deposition[J].Journal of Geophysics and Engineering,2017,14:713-722.
[17] 吴亚军,王宁,张广东,等.高含硫气藏单质硫溶解度测试方法及预测模型[J].特种油气藏,2022,29(2):104-109.
WU Yajun,WANG Ning,ZHANG Guangdong,et al.Testing method and prediction model of elemental sulfur solubility in sour gas reservoirs[J].Special Oil & Gas Reservoirs,2022,29(2):104-109.
[18] CHRASTIL J.Solubility of solids and liquids in supercritical gases[J].The Journal of Physical Chemistry,1982,86(15):3016-3021.
[19] 赵欢,李玮,唐鹏飞,等.压裂工况下近井筒地应力及套管载荷分布规律研究[J].石油钻探技术,2023, 51(5):106-111.
ZHAO Huan, LI Wei, TANG Pengfei, et al.Study on the distribution law of near-wellbore in-situ stress and casing load under fracturing conditions[J].Petroleum Drilling Techniques,2023, 51(5):106-111.
[20] 赵向阳,赵聪,王鹏,等.超深井井筒温度数值模型与解析模型计算精度对比研究[J].石油钻探技术,2022, 50(4):69-75.
ZHAO Xiangyang, ZHAO Cong, WANG Peng, et al.A comparative study on the calculation accuracy of numerical and analytical models for wellbore temperature in ultra-deep wells[J].Petroleum Drilling Techniques,2022, 50(4):69-75.
[21] 任岚,蒋豪,赵金洲,等.考虑井筒变形的深层射孔井岩石破裂压力计算模型[J].大庆石油地质与开发,2022,41(6):64-73.
REN Lan,JIANG Hao,ZHAO Jinzhou,et al.Calculation model of breakdown pressure in deep perforated wells considering wellbore deformation[J].Petroleum Geology & Oilfield Development in Daqing,2022,41(6):64-73.
[22] 张小军,李军,张慧,等.天然裂缝分布对水力裂缝扩展及近井筒孔隙压力的影响[J].断块油气田,2022,29(6):831-836.
ZHANG Xiaojun,LI Jun,ZHANG Hui,et al.Influence of natural fracture distribution on hydraulic fracture extension and near wellbore pore pressure [J].Fault-Block Oil & Gas Field,2022,29(6):831-836.
[23] 高子康.存在硫析出的高含硫气井井筒压力计算方法研究[D].北京:中国地质大学(北京),2021.
GAO Zikang.Study on calculation method of wellbore pressure in high-sulfur gas wells with sulfur precipitation[D].Beijing:China University of Geosciences(Beijing),2021.
[24] 刘锦.高含硫气井井筒温度-压力预测[D].成都:西南石油大学,2017.
LIU Jin.Prediction of wellbore temperature and pressure in high sulfur gas wells[D].Chengdu:Southwest Petroleum University,2017.

考虑相态变化的高含硫气井硫析出预测模型

Predictive model for sulfur precipitation in high-sulfur gas wells considering phase change

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