齐40块蒸汽驱硫化氢治理技术研究

发布时间：2018-02-15 06:32

本文关键词： 伴生气硫化氢脱硫工艺脱硫点布置耐腐蚀材料　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着辽河油田稠油高温采油的陆续实施,油井伴生气中硫化氢含量越来越高,造成严重的大气污染,已严重危害到现场工作人员和附近百姓的人身安全及油田的生产安全。因此研究脱除稠油伴生气中的硫化氢气体成为保证油田可持续生产的一项重要内容。本项目针对齐40块伴生气硫化氢治理进行了详尽的研究。包括脱硫工艺、脱硫处理点布置和耐腐蚀材料的选用。根据齐40块含硫天然气井站布局及含硫天然气处理规模小的实际情况,采用QF-12脱硫剂干法脱硫工艺,脱硫塔串并联的流程脱除伴生气中硫化氢。通过采用区域集中布站方式布置脱硫处理点,每个处理点再根据处理气量及硫化氢含量、换料时间的综合分析,分别设置不同规格及不同数量的脱硫塔,多台脱硫塔串并联方式运行,合理经济的解决了稠油伴生气除硫问题。通过研究比选合理采用耐腐蚀材料防止设备、管道及阀门等的腐蚀。脱硫塔壳体材料采用Q245R,阀门采用专用耐腐蚀阀门,管道和管件材质选用20G高压锅炉用无缝钢管GB5310,法兰密封面型式为凸凹面。通过选用耐腐蚀材料保证工艺生产设备、管道及阀门安全。本项目实施后,处理后的天然气中均未检测出硫化氢,优于设计值硫化氢含量不大于10mg/m3,脱硫效果显著,能够很好的解决稠油油田生产造成的环境污染及人身安全的问题。同时通过齐40块蒸汽驱硫化氢治理,每年生产运行可回收天然气382.11×104m3,每年获经济效益1146.33万元。齐40块伴生气硫化氢的治理为辽河油田其它稠油高温采油区块伴生气中硫化氢的处理提供了宝贵经验和依据。
[Abstract]:With the implementation of high temperature oil production of heavy oil in Liaohe Oilfield, the hydrogen sulfide content in associated gas of oil wells is increasing, causing serious air pollution. It has seriously endangered the personal safety of field workers and nearby people and the production safety of oil fields. Therefore, the study of removing hydrogen sulfide gas from heavy oil associated gas has become an important content in ensuring the sustainable production of oil fields. The treatment of hydrogen sulfide from 40 associated gases has been studied in detail, including the desulfurization process, Layout of desulfurization treatment points and selection of corrosion resistant materials. According to the layout of 40 sulfur gas well stations and the actual situation that the scale of treatment of sulfur containing natural gas is small, QF-12 desulfurizing agent dry desulfurization process is adopted. The desulphurization treatment points are arranged by using the method of regional centralized distribution station, and each treatment point is analyzed synthetically according to the gas quantity and hydrogen sulfide content and the reloading time of each treatment point. With different specifications and different numbers of desulphurizers and several desulfurization towers in series-parallel mode, the problem of sulfur removal from heavy oil associated gas is solved reasonably and economically. Through research and comparison, corrosion resistant materials are used to prevent sulfur removal. Corrosion of pipes, valves, etc. The shell material of the desulfurization tower is Q245R, and the valve is a special corrosion resistant valve. The pipe and pipe fittings are made of seamless steel tube GB5310 for 20G high-pressure boiler, and the flange sealing surface is convex and concave. The safety of production equipment, pipes and valves is ensured by the selection of corrosion resistant materials. After the implementation of this project, No hydrogen sulfide has been detected in the treated natural gas, which is better than the design value of hydrogen sulfide content less than 10 mg / m ~ 3, and the desulfurization effect is remarkable. It can solve the problems of environmental pollution and personal safety caused by heavy oil field production. At the same time, through 40 block steam drive hydrogen sulfide treatment, The annual production and operation of recoverable natural gas is 382.11 脳 10 ~ 4m ~ 3, and the economic benefit is eleven million four hundred and sixty-three thousand and three hundred yuan per year. The treatment of hydrogen sulfide in the associated gas of 40 blocks of Qi 40 provides valuable experience and basis for the treatment of hydrogen sulfide in the associated gas of other heavy oil production blocks in Liaohe Oilfield.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.44;X741

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