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浅谈萨南油田不加热集油技术 总被引:3,自引:0,他引:3
大庆萨南油田已进入高含水采油期,导致原油集输热力系统自耗天然气呈上升趋势。目前在萨南油田采用的不加热集油方式有多种。其中掺常(低)温水不加热集油方式适合于在中转站内所辖的电泵井或高产液井较多及含有部分低产液井的情况。“一站、两制”不加热集油方式则既能满足掺常(低)温水—老井的不加热集油需要,又可以保证低产液、低合水的油井的安全生产。1996年在萨南油田又进行了“三不”复合试验,对产液量较高的油井采用掺常温水不加热集油方式。萨南油田采用的常规单管不加热集油方式适用于单井回油温度不低于32℃、回压不超过0.5MPa外情况。此外萨南油田还采用双管不加热集油、单管电加热环状不加热集油等不加热集油方式。 相似文献
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目前,萨南油田采出液综合含水为86·9%,已进入高含水开发阶段。随着井、站数量的增加,集输系统的总能耗也在上升。油田进入高含水开发期后,集输条件发生了变化,为进一步挖掘集输系统的节能潜力,提高企业经济效益,同时,为了获得特高含水阶段的最优集油方式,并确定合理的技术界限参数,萨南油田开展了特高含水井常年单管不加热集油现场试验,以探索特高含水期集输系统节能降耗的新途径。1·现场试验情况截止2004年底,大庆油田采油二厂已实施降温集油的转油站共34座,降温集油的油井2438口,分别占全厂转油站和油井总数的53·9%和53·2%。目前含水8… 相似文献
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萨南油田已经开发40多年,生产工艺流程基本上为双管掺水、热洗分开流程,油井单井日产液量一般在10~400t/d,含水在51%~98%。随着原油含水率不断上升,继续采用加热集输流程,势必导致原油集输能耗升高,造成能源大量消耗,为此,探索实施了不加热集油集输方式。萨南油田开展不加热集油主要采取三种方式:即单管不加热集油、双管不加热集油、掺常温水不加热集油。 相似文献
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大庆油田已经进入高含水采油期,导致原油集输热力系统自耗天然气呈上升趋势.为最大限度地节约能源,降低原油生产成本,开展了喇萨杏水驱高含水油田不加热集油节气技术研究.2007~2011年,在现场试验取得较好效果的基础上,低温集油技术在大庆油田大规模推广,先后有42座联合站系统、392座转油站系统和37200口油井实施了采出液低温集输处理工艺技术,累计节约天然气6.57×108 m3,取得经济效益10.58亿元. 相似文献
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掺温水不加热集油是利用井底油气到达井口后的余热和联合站(或中转站)含水原油经脱水后所产生的含油污水余热,在中转站停止供热,采取在井口掺含油污水的方法,把单井集油管中原油的综合含水提高到76%以上,使含水原油乳状液由油包水型变为水包油型,转相后粘度迅速下降,则可在较低温度下长期输送。本文结合试验情况对掺温水不加热集油工艺作了初步探讨。 相似文献
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油田开发进入中后期,随着含水上升液量增加、地面系统规模的扩大,原油生产能耗不断升高。为了提高效率、降低能耗,充分利用采出水的热能,开展了不加热集油的常温掺输技术研究,通过试验得出掺水量的确定原则并研发了定量掺水工艺,在吉林油田英148辖区应用取得了理想的效果。同期相比,掺输水温由60℃降低到42℃,单井集油温度由42℃降低到23℃,试验区块油井全部实现了全年常温掺输,系统运行压力平稳,节能降耗效果显著。 相似文献
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应用低温集油技术是降低集输系统能耗的主要途径。通过产液分级、原油凝固点分析、不同区块黏壁温度分析,结合地温数据,界定出适合不同低温集油技术的油井条件,形成了常温输送、季节性常温输送、原油改性技术和定量低温掺输等多种技术,实现了优化简化、节能降耗的目标。 相似文献
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采油过程中,酸化是油气井增产、注水井增注的主要措施。砂岩基质酸化和碳酸岩基质酸化都是在低于储层破裂压力的条件下向地层中注入酸液,溶解地层中的可溶物质,清除孔隙或裂缝中的堵塞物质,从而使油气井增产或注水井增注的一种工艺措施。本文着重讨论了砂岩酸化的设计计算方法,并由此建立一套基质酸化设计方法。 相似文献
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《Oil and Energy Trends》2008,33(5):6-7
This section summarizes downstream developments of the previous month. Exploration & Production are covered in 'Upstream Review'.
An upsurge of violence in Iraq threatened a recovery in output that began earlier this year. Production in the northern fields hit a post-invasion high of 620,000 bpd in March, rising by 180,000 bpd in one month. Fighting in the south, however, cut production there by more than 100,000 bpd as government troops tried to subdue Shi'ite militias in and around Basrah. Oil installations damaged in the south included a pipeline and a pumping station. The Iraqi government nevertheless announced that oil production would reach 2.9 mn bpd by the year's end, requiring an increase of nearly 500,000 bpd over April 2008 levels. Foreign help is to be sought via a series of technical service agreements and - later this year - an upstream licensing round. Japan's Ministry of Economy, Trade and Industry says it wants a bigger role for Japanese oil companies in both the upstream and downstream sectors in Iraq. Kurdistan says it is negotiating with Baghdad to export oil produced from new oil fields there. The central government does not recognize production agreements drawn up by the Kurdistan Regional Government. The EU - desperate for gas to fill its Nabucco pipeline - has approached Iraq for up to 1 bn cfd. 相似文献
An upsurge of violence in Iraq threatened a recovery in output that began earlier this year. Production in the northern fields hit a post-invasion high of 620,000 bpd in March, rising by 180,000 bpd in one month. Fighting in the south, however, cut production there by more than 100,000 bpd as government troops tried to subdue Shi'ite militias in and around Basrah. Oil installations damaged in the south included a pipeline and a pumping station. The Iraqi government nevertheless announced that oil production would reach 2.9 mn bpd by the year's end, requiring an increase of nearly 500,000 bpd over April 2008 levels. Foreign help is to be sought via a series of technical service agreements and - later this year - an upstream licensing round. Japan's Ministry of Economy, Trade and Industry says it wants a bigger role for Japanese oil companies in both the upstream and downstream sectors in Iraq. Kurdistan says it is negotiating with Baghdad to export oil produced from new oil fields there. The central government does not recognize production agreements drawn up by the Kurdistan Regional Government. The EU - desperate for gas to fill its Nabucco pipeline - has approached Iraq for up to 1 bn cfd. 相似文献
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