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</div> <!--end 联系我们--> </div> <!--end 左侧--> <!--start 右侧--> <div class="right"> <div class="title"> <h2>新闻资讯<span>news</span></h2> <div class="location">您当前所在位|:<a href="/">首页</a> > <a href="/news/">新闻信息</a> > 详细内容</div> </div> <div class="content"> <div class="ih6"> <h1>【知识】a田助剂三ơ采?油田助剂蒸汽</h1> <div class="content"> <p> 在三ơ采油远不同于二ơ采Ҏ讲介l中Q让大家了解了一些不Zh知的问题或知识,但对"<a href="http://www.yin138.com/" target="_blank">唐山市金沙工贸有限公?/a>"所在的q个行业大家q是比较陌生的,今天我们来了解一?<p style="text-indent:2em;">三次采aq不同于二次采a。二ơ采Ҏ依靠人工补充油层能量的物理作用提高采收率Q?而三ơ采Ҏ法是在注水保持a层压力基上,又依靠注入大量新的驱油剂Q改变流体粘度、组分和相态,h物理化学的双重作用,不仅q一步扩大了注入水L及范_而且使分散的、束~在毛细中的残余a重新聚集而被采出。因此,三次采a要求更精l地掌握分散原a在地下a层中的分?研究新的驱a剂与十分复杂的岩石矿物、流体的物理-化学作用;探烦q掌握非牛顿体多相渗流的基本规律。从而正合理地q行油田开发部|y—井|、井距、层pd分、注采关pR注采工艺、动态监、相应的地面集输pȝ和净化处理等。MQ一整套技术都随着三次采a技术的应用而发生变化。a田开发要建立在更q泛的多学科l合应用基础上,从宏观和微观上更深化对地下流体渗的认识采aQ三ơ采油远不同于二ơ采Ҏ化对油田的认识。三ơ采油将把a田开发带入一个更高技术水q的新阶Dc?/p><p style="text-indent:2em;"> <span style="color:#ff0000;">q篇文章您或许更喜欢Q?/span> </p><p style="text-indent:2em;">热力׃ơ采Ҏ?/p><p style="text-indent:2em;">热力采a包括注蒸?蒸汽吞吐和蒸汽驱两种工艺)、火烧a层和热化学采沏V注蒸汽和火烧a层都是利用热量加热a层和油层中的体Q降低原油粘度来辑ֈ减小油层动d的目的。所不同的是蒸汽是在地面上的蒸汽发生?又称热采锅炉)中生,通过地面道和a井注入a层,而火烧a层热量则是在含a岩层内部产生Q因而也UCؓ地加热或燃烧过E。这是按产生热量的方式或地点而区分的?/p><p style="text-indent:2em;">如果按注采工艺区分,可把热采分ؓ热驱(thermal drive)和热力激励或增(thermal stimulation)两类。所谓热驱,是将热流体连l地注入一口井或几口井驱替原aQ从其它井油三ơ采沏V热力驱三次采a技术维持热体注入所需的压力会加快原a的流动,也增大a藏中的驱动力Q因此,热驱不仅由温度升高而降低流动阻力,而且为增加流量供l动力。消耗热量多Q但能获得较高的最l采收率。注蒸汽的热q汽驱Q注I气火烧油层的热q为火驱。热力激励或增只是加热井筒附近的a层。一旦这部分油层内原Ҏ动阻力降低,较远处a层内的驱动力Q如重力驱、溶解气驱和天然水驱Q就能引赯井沚w度的增加。注蒸汽的热力激q汽吞?steam huff puff)Q蒸汽浸?steam soak)或@环注蒸汽(cyclic steam injection)。注I气火烧油层用作油井Ȁq增措施很少采用Q有时作ZU特D的Ҏ使用Q因而没l予专门的名U?/p><p style="text-indent:2em;">热化学是在采Ҏ术中Q注入亚酸钠和酸按,使其在地层中产生化学反应Q一斚w产生气体形成气驱Q一斚w反应时生大量热辑ֈ热驱效果?/p>“三ơ采油远不同于二ơ采油”所q的内容Q是我们的小~精心ؓ大家准备的,q记得上中说了什么吗Q这些或讔R有些不全面的地方Q我们会在以后的文章中ؓ大家一一说明 </p> </div> <div class="next"><div>上一?<a href="651.html">【精选】a田助剂表面活性剂_油田助剂Ҏ</a></div> <div>下一?<a href="649.html">食品废水处理如何选择水处理剂Q?/a></div> </div> <div class="clear"></div> <div 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