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介绍了均匀注汽工艺技术。新疆油田稠油热采过程中,水平井段注蒸汽效果的好坏直接影响到稠油开发效果,以前采用的单点注汽,双点注汽,都不能很好地解决水平井段均匀注汽问题。根据汽水两相流的相关理论,和传热学相关知识,建立了水平井段均匀注汽的物理模型,并借鉴国内油田的成功技术,结合新疆油田的特殊情况,归纳出水平井段均匀注汽的技术思路,并编制出计算程序,设计出配套工具,制定出现场实施方案。均匀注汽工艺技术的研究,从提高稠油油藏动用程度、提高采收率等方面能够为新疆油田带来很大的的经济效益和社会效益。 相似文献
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研究了采用DSC脱硫剂进行我厂污水汽提装置副产氨气脱硫的工艺以及脱硫剂的再生方法,并已投入工业应用,该脱硫剂不仅能脱除H2S,还能脱除大部分总硫,运行一年多来,氨气中H2S降至2mg/m^3以下,总硫小于15mg/m^3,总硫脱硫除率达65~75%,液氨质量明显提高,取得了较高的经济效益,由于我厂氨中还含有酚,铁等杂质,导致液氨氧化变红,采用DCZ脱色剂,可除去这些杂质,使变红液氨颜色大为改善。 相似文献
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针对我国西部某油田A井区高含硫的问题,利用专业软件模拟和相关实验开展了井场原油气提脱硫技术和化学脱硫技术的研究。在模拟A井气提脱硫的基础上,得出气提法的优化参数为塔压0.3MPa,6层塔板,气提气量和塔底重沸器温度依据气提气充足与否和耗能情况进行调节,气提气量控制在4.7~6.1m3/t,相应的塔底重沸器温度为152.0~41.6℃。对于化学脱硫,通过实验筛选出了适用于A井、主要成分为二异丙基合成物的脱硫剂,并评价了用量、作用时间、含水率、温度等因素对其脱硫效果的影响。 相似文献
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本文使用液相离子交换法成功制备了一系列Cu,Zn,Co负载的分子筛,并用X射线衍射(XRD),氮气吸附(BET),X射线荧光光谱(XRF),以及扫描电子显微镜(SEM)等手段进行表征。通过研究发现,这些负载型分子筛对沙特阿拉伯中质原油的吸附脱硫能力顺序为Zn(II)X > Cu(II)Y > Co(II)X > Cu(II)X > Co(II)Y> Zn(II)Y。其中,Zn(II)X吸附剂的脱硫效率最高,在最优条件下能达到41.01%。对Zn(II)X吸附剂在不同馏分中吸附脱硫性能的研究表明,该吸附剂对重油馏分中含硫化合物的脱除效果较好。脱硫后不同馏分中含硫化合物的分布显示,Zn(II)X吸附剂对噻吩、苯并噻吩和二苯并噻吩等芳香含硫化合物的脱除具有较高的选择性。这些结果表明锌离子和硫化物之间的π-络合作用很可能是该吸附剂脱硫效率较高的主要原因。此外,使用过的吸附剂可在空气中700 °C下焙烧再生,且吸附剂经第一次再生能恢复约84%的脱硫能力。 相似文献
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分析了目前利用水提取法、氮气吹脱-离子色谱法、氮气吹脱-XVI总硫分析仪法、氮气吹脱-碘量法等方法测定原油中硫化氢含量存在的问题,推荐并进一步从检测装置、操作步骤、计算公式等方面完善了氮气吹脱-碘量法测定原油中硫化氢的方法。 相似文献
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Cold stripping is the most common process for crude oil sweetening in oilfields particularly at offshore installations because of its low price and relatively easy operating conditions in comparison with other sweetening processes. In this paper the cold stripping process in tray column has been modeled mathematically in static and dynamic modes, and solved with the MATLAB software. This process has been used in the existing treatment facilities of an offshore oil production complex for verifying the model results. With the help of HYSYS software the effective parameters on the process have been discussed and the optimized conditions finalized after some plant modifications for improving the performance of stripper columns have been proposed. 相似文献
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A deep desulfurization process for FCC gas oil by a combination of liquid-liquid extraction, photochemical reaction, and treating with oxidation agents has been investigated. The process often represented by the model heterocyclic compounds, benzothiophenes (BTs) and dibenzothiophenes (DBTs). The process is comprised of three stages. Extraction of the sulfur-containing compounds from a catalytic cracked gas oil by acetonitrile, photooxidation, and photodecomposition of the sulphur compounds in the acetonitrile phase by ultraviolet irradiation from a high pressure mercury lamp, and recovery of the sulphur from the irradiated oil and treatment with oxidizing agent. The process was carried under conditions of room temperature and atmospheric pressure. Acetonitrile/water azeotropic mixture has been recycled successfully through distillation column. The sulfur in this gas oil has been decreased from 1800 ppm to 550 ppm after photo-desulfurization, and 508 ppm after treatment with the oxidizing agents. The total yield of the oil was 90-95%. 相似文献
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利用咔唑类非烃化合物作为油气运移示踪剂,探讨了塔中地区志留系可动油的运移方向。对塔中地区志留系可动油的吡咯类化合物的丰度、参数的变化规律的研究结果表明,塔中地区志留系可动油侧向运移分馏效应不显著,具有近源性特点。志留系可动油主要来源于满西地区和塔中北斜坡的寒武-奥陶系烃源岩,向南东-南的方向首先进入塔中47号构造,然后依次向塔中11、塔中12-50及塔中16号等构造侧向运移。垂向上,志留系可动油有自下而上运移的趋势。油气运移过程受区域构造控制,运移方向与志留系主要断裂走向一致。 相似文献