CN102900398A - 能量存储系统 - Google Patents

能量存储系统 Download PDF

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CN102900398A
CN102900398A CN2012102632399A CN201210263239A CN102900398A CN 102900398 A CN102900398 A CN 102900398A CN 2012102632399 A CN2012102632399 A CN 2012102632399A CN 201210263239 A CN201210263239 A CN 201210263239A CN 102900398 A CN102900398 A CN 102900398A
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energy storage
storage system
energy
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heat
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CN102900398B (zh
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G.H.梅森
S.B.艾伦比
K.R.伍滕
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Sondex Wireline Ltd
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Abstract

公开了一种能量存储系统。该能量存储系统包括布置成在周围环境温度之上操作的能量存储装置;至少部分地包围该能量存储装置的热绝缘体;并且其中来自一个或其他装置的热损失被接纳在该热绝缘体内,以便给能量存储装置提供热能。利用来自诸如相关电气部件的一个或更多其他装置的热损失使得能量存储装置能够维持在其升高的操作温度下更长时间,从而提供延长的蓄电池寿命。在缆式测井应用中,这导致在井中的每次行程可获得更多的数据日志。

Description

能量存储系统
技术领域
本发明涉及一种能量存储系统,尤其涉及布置成在升高的温度下操作的能量存储系统。
背景技术
通常钻出井眼来抽取诸如原油和天然气等的自然资源。在井眼中使用井下电气设备用于各种目的,诸如用于用来测量井下条件的传感器,用来驱动数据存储和发射功能以及用来驱动井下工具和阀门。此类井下电气设备可由诸如蓄电池、燃料电池或电容的能量存储装置驱动。
许多类型的能量存储装置,如NaCl蓄电池和燃料电池,仅在较高温度下操作。然而,对于许多能量存储装置,操作温度范围甚至高于井下所遇到的温度,其例如可为180℃或以上。
US 4 416 000公开了一种用来在将蓄电池浸入油井的酷热环境中之前“启动”蓄电池的装置。首先在地面期间在浸入油井中之前向仪器施加外部电压。此电压激活加热元件,加热元件使熔盐蓄电池的电解物熔解。提供温度调节开关使得当在井下时,当蓄电池需要附加的加热时,蓄电池可以向加热元件供应电力。
此类蓄电池通常在井下使用,直至它们耗尽电力,然后必须将它们与它们设置在其上的整个井下装置一起拆除。希望的是延长能量存储装置可以在井下使用的时间周期,以减少其中必须收回整个井下装置、对能量存储装置重新充电或更换并再次送到井下的操作性中断。
发明内容
根据本发明,提供了一种能量存储系统,包括:
布置成在周围环境温度以上操作的能量存储装置;
至少部分地包围该能量存储装置的热绝缘体;以及
其中来自一个或更多其他装置的热损失布置成被接纳在该热绝缘体内以给能量存储装置提供热能。
由于来自一个或更多其他装置的热损失被接纳在热绝缘体内,这在更长的时间周期中保持能量存储装置的温度更高。这减少了维持存储装置的温度所需的电力,并因此该装置上的消耗使得其能够在井下继续操作更长,且减少了对于工具以及能量存储装置必须暂停以从井中拆除的操作次数。在缆式测井应用中,这导致在井中的每次行程可获得更多的数据日志。
该一个或更多其他装置也可至少部分地由热绝缘体包围以便热损失或能量良好地热传递至能量存储装置。
该一个或更多其他装置可为或可包括一个或更多电气部件,诸如晶体管。电气部件可为或形成控制线路的一部分,用来使用一个或更多电子加热器控制能量存储装置的加热。电气部件可布置成在周围环境温度以上操作,并且可包括基于SiC的部件,这些部件可以在升高的温度如300℃和以上操作。
附图说明
现在将参考附图仅通过示例描述本发明的实施例,其中: 
图1图示了位于井眼中的井下单元。
图2显示了说明本发明的能量存储系统的示例;以及
图3显示了说明本发明的更详细的示例。
具体实施方式
图1图示了位于井的井孔20中的井下单元10。该井下单元10从缆绳30悬吊,缆绳30从鼓40通过设置在地面的滑轮50进给。井下单元10可用于各种目的,诸如钻探、测量井下条件等。此示例中的井下单元10具有能量存储装置,如一个或更多蓄电池、燃料电池或电容,其可用于驱动井下电气设备,如传感器、工具和阀门和/或驱动数据存储和发射设备。
图2显示了可设置在井下单元10中的能量存储系统的一个示例。能量存储系统包括能量存储装置100,如一个或更多蓄电池、燃料电池或电容器或它们的组合。特别适合的能量存储装置100的一个示例是热学蓄电池或热学激活的蓄电池,其中电解物在正常地面环境温度下是固体且不活动的。在更高的温度下,如对于钠基蓄电池超过270℃,电解物熔解使得蓄电池能够操作。升高的操作温度典型地高于270℃,但更优选地常要求高于300℃或400℃。热学蓄电池通常提供比常规蓄电池更高的能量密度和更高的功率密度,并且已经发现对于井下使用尤其适合,这里如以上所解释的那样,温度高于地面。热学蓄电池的示例包括NaCl或熔盐蓄电池、钠-硫磺蓄电池、锂硫蓄电池、钠铝氯化物蓄电池和钾离子蓄电池。能量存储装置100至少部分地被热绝缘体200包围,以减少来自能量存储装置100的热损失。合适的热学蓄电池的一个示例是杜瓦瓶,但根据所要求的条件如预期的振动水平、所要求的能量存储装置100的尺寸等,可使用任何合适的热绝缘体。产生热损失的一个或更多其他装置300比方说例如电气部件、钻探系统的零件、制动系统等布置成使得热损失被接纳310在热绝缘体200内以便给能量存储装置100提供热能。此废热的回收使得能量存储装置100能够更长地保持在其所需温度下,从而提供更长的操作周期并降低井下单元10必须拉起到地面上以便对能量存储装置100进行重新充电或更换的频率。我们的发明的一个示例的能量存储系统的增加的操作时间降低了操作成本,并使得操作能够以更少的中断从而降低整体操作次数而完成。
图3显示了本发明的一个示例的能量存储系统的更详细的示例。在此示例中,提供了两个相互连接的能量存储装置100。然而,只要其适用于期望的应用,可使用任何数量的一个或更多能量存储装置100。能量存储装置100连接到电气线路300上。在此示例中,电气线路300也设置在热绝缘体200内。在此示例中电气线路300为电源单元。可使用任何合适类型的电源单元,如线性电源或开关模式电源。线性电源比开关模式电源更简单,但效率较低。然而,由于废热被回收来维持存储装置100的温度,它们是优选的。如果使用不同类型的电气线路,其中一些部件如晶体管能够在更高的温度下操作并且比线路中的其他零件产生更多热量,则较大的热量产生部件可至少部分地设置在热绝缘体200内,而在更高温度下操作较差的其他部件设置在处于较低温度的热绝缘体200外。如箭头310示意性地所示,来自装置300的热损失限制在热绝缘体200内,从而给能量存储装置100提供热能。
在此示例中电气线路300也连接到加热元件400上。如果能量存储装置100的温度开始下降到低于低阈值温度,则来自能量存储装置100的能量可用于驱动电气加热元件400来将能量存储装置100恢复到优选的操作温度范围。然而,使用来自能量存储装置100的能量来驱动电加热器400减少了对于其他操作通过输出500可获得的能量的量,其他操作如操作传感器、工具和阀门以及驱动数据存储和发射设备。使用来自装置300的热损失减少了驱动电加热器400以将能量存储装置100维持在其优选操作温度范围内所需的能量的量,从而延长了能量存储装置100的寿命。已经发现使用基于碳化硅(SiC)的半导体电气装置300使得其能够在高于常规硅基电气元件的温度下操作,如300℃或以上。因此,我们的发明的一个示例包括基于SiC的电气装置300,其有利地能够在能量存储装置100的升高的温度下正确起作用,并且其中来自基于SiC的电气装置的热损失被用于帮助将能量存储装置维持在其优选操作范围内,从而延长电池寿命。
尽管上述示例尤其适用于升高温度的井下条件,但本发明的示例也可用于各种其他情况。例如,能量存储系统可用在车辆中,其中来自一个或更多其他系统如制动系统的热损失可接纳在热绝缘体200内,以便给能量存储装置100提供热能。备选地,能量存储系统可用在具有高温电气元件如基于SiC的电气元件的计算机电源中,这些电气元件可设置在电源中或相关的计算机系统或两者中,并且其中来自电气元件的热损失用于给能量存储装置100提供热能。和热学蓄电池一样,也可使用其他的能量存储装置,如燃料电池。
如果在与热存储装置相同的热绝缘体中设置一个或更多其他部件不可行,则合适的热传递装置可设置在两者之间,如热传导线缆或金属杆。可以提供热泵以协助热传递。这也将帮助冷却热的部件/其他装置。
可使用布置成在周围环境温度以上操作的任何合适的能量存储装置,例如主要或辅助热学蓄电池或燃料电池。对于上述示例可做出许多变化而仍然落入本发明的范围内。例如,虽然在图3的示例中示出了两个能量存储装置100,但只要适用于其预期用途,可使用任何数量的一个或更多能量存储装置100。

Claims (14)

1. 一种能量存储系统,包括:
布置成在周围环境温度以上操作的能量存储装置;
至少部分地包围所述能量存储装置的热绝缘体;以及
其中,来自一个或更多其他装置的热损失布置成被接纳在所述热绝缘体内,以给所述能量存储装置提供热能。
2. 根据权利要求1所述的能量存储系统,其特征在于,所述一个或更多其他装置也至少部分地被所述热绝缘体包围。
3. 根据权利要求1或权利要求2所述的能量存储系统,其特征在于,所述一个或更多其他装置包括一个或更多电气部件。
4. 根据权利要求3所述的能量存储系统,其特征在于,所述一个或更多电气部件布置成在与所述能量存储装置的操作温度范围重叠的温度范围中操作。
5. 根据权利要求4所述的能量存储系统,其特征在于,所述电气部件包括基于SiC的部件。
6. 根据权利要求3到5的任一项所述的能量存储系统,其特征在于,所述电气部件包括电源单元,所述电源单元具有至少部分地被所述热绝缘体包围的一些电气部件和在所述热绝缘体外的一些电气部件。
7. 根据任一前述权利要求所述的能量存储系统,其特征在于,所述能量存储装置是热学蓄电池。
8. 根据权利要求7所述的能量存储系统,其特征在于,所述能量存储装置是熔盐电解物蓄电池。
9. 根据任一前述权利要求的能量存储系统,其特征在于,包括在所述热绝缘体内的电加热器。
10. 根据任一前述权利要求所述的能量存储系统,其特征在于,所述能量存储系统布置成用于井下。
11. 根据任一前述权利要求的能量存储系统,其特征在于,所述能量存储系统布置成用在车辆中,其中来自所述车辆内的热发生系统的热损失布置成接纳在所述热绝缘体内,以便给所述能量存储装置提供热能。
12. 根据权利要求11所述的能量存储系统,其特征在于,所述热发生系统包括制动系统。
13. 根据任一前述权利要求的能量存储系统,其特征在于,所述能量存储系统布置成用在计算机电源中,其中来自相关电气部件的热损失布置成接纳在所述热绝缘体内,以便给所述能量存储装置提供热能。
14. 大体如之前关于附图所述的一种能量存储系统。
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