CN104564033A - 一种管道接箍检测装置 - Google Patents
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Abstract
本发明涉及一种管道接箍检测装置，包括可供管道以及管道接箍通过的内层管、套设在所述内层管外部的外层管，所述内层管和所述外层管之间形成环形安装腔，该管道接箍检测装置还包括：间隔绕设在所述内层管上，且位于所述环形安装腔内的多套检测组件，所述检测组件中包括励磁线圈和检测线圈；与所述检测线圈相连，且用于比较不同检测线圈中感应电动势差值的数据处理器，所述数据处理器中存储有预设差值，且仅当任意两个所述检测线圈中的感应电动势差值大于等于所述预设差值时，所述数据处理器发出接箍信号。该管道接箍检测装置可有效避免因管道晃动而产生的管道接箍误判。
Description
技术领域
本发明涉及油田修井测井技术领域，特别涉及一种在修井测井过程中所用到的管道接箍检测装置。
背景技术
不压井技术目前在国内油田中的使用范围越来越大，其主要优点在于可以保护和维持地层的原始产能，减少酸化和压裂等增产措施的次数，为油气田的长期开发和稳定生产提供良好的基础。
所谓不压井技术具体是指在井内有压力的情况下不放喷、不压井进行强行作业的一种作业方法，主要用于油气井作业、注水井的检修等。
在油田修井过程中，在进行有压力的情况下，要不断地进行油管起、下作业，当油管接箍接近井口闸板防喷器位置时，需要迅速打开井口闸板防喷器，以便使油管能够顺利通过，因此为了保证油管能够顺利通过井口闸板防喷器，有必要掌握接箍的具体位置。
目前在油管起、下作业过程中对接箍位置的掌握主要有两种方式，一种方式是通过人工目测并根据经验来估计接箍位置，然而该种方式容易因工人产生疲劳或者操作者失误而导致安全事故的发生；另外一种方式是采用油管接箍检测装置来进行检测，油管接箍检测装置通常包括励磁线圈和与励磁线圈配套使用的检测线圈，由于油管和接箍处的壁厚不同，因此当油管和管道接箍通过检测线圈时引起的检测线圈内感应电动势的变化不同，从而区分出油管和管道；在该种方式中，由于根据检测线圈内电动势的变化量来判断是否有接箍通过，而在油管发生晃动或者存在油污等杂质的情况下，引起的检测线圈内电动势的变化量可能也会与接箍相同，这就容易产生误判，对油井修井或者测井作业无法达到精确指导。
因此如何能够避免由于管道发生晃动而带来的接箍误判是目前本领域技术人员亟需解决的技术问题。
发明内容
本发明的目的是提供一种管道接箍检测装置，以便能够避免由于管道发生晃动而对管道接箍位置产生误判，提高管道接箍检测的准确性。
为解决上述技术问题，本发明提供的管道接箍检测装置中，包括可供管道以及管道接箍通过的内层管、套设在所述内层管外部的外层管，所述内层管和所述外层管之间形成环形安装腔，该管道接箍检测装置还包括：
间隔绕设在所述内层管上，且位于所述环形安装腔内的多套检测组件，所述检测组件中包括励磁线圈和检测线圈；
与所述检测线圈相连，且用于比较不同检测线圈中感应电动势差值的数据处理器，所述数据处理器中存储有预设差值，且仅当任意两个所述检测线圈中的感应电动势差值大于等于所述预设差值时，所述数据处理器发出接箍信号。
优选的，所述环形安装腔的两端还安装有密封件。
优选的，所述检测组件为两套。
优选的，两套所述检测组件之间的间隔大于待检测的管道接箍的轴向长度。
优选的，所述数据处理器设置在防爆盒中。
优选的，用于连接所述检测线圈和所述数据处理器的连接线路穿设在防爆管中。
优选的，还包括与所述数据处理器相连的扬声器，且在发出接箍信号时，所述数据处理器还控制所述扬声器发出提示音。
优选的，还包括与所述数据处理器相连的提示灯，且在发出接箍信号时，所述数据处理器还控制所述提示灯发光提示。
由以上技术方案可以看出本发明所提供的管道接箍检测装置中，在内层管和外层管之间形成的环形安装腔内设置了多套检测组件，检测组件中包括励磁线圈和检测线圈，数据处理器与各个检测线圈相连，并用于比较不同检测线圈中感应电动势差值，仅在当任意两个检测线圈中的感应电动势差值大于等于预设差值时，数据处理器发出接箍信号。
可见，本发明中所公开的管道检测装置中，通过多套检测装置对管道接箍进行检测，由于管道和管道接箍的壁厚不同，在通过检测线圈时，会使得检测线圈内所产生的电动势不同，当任意两个检测线圈中的感应电动式差值达到预设差值时，表明其中一个感应线圈检测的是管道接箍，另外一个检测线圈所检测到的是管道，此时数据处理器将发出接箍信号；而当因管道晃动引起检测线圈内的电动势发生变化时，由于各个检测线圈内的瞬时电动势变化一致，因而检测线圈中感应电动势的差值不会达到预设差值，此时数据处理器将不会发出接箍信号，因此本发明中所公开的管道检测装置可以有效避免因油管晃动而产生的管道接箍误判的情况出现，从而有效提高了管道接箍检测的准确性。
附图说明
图1为本发明实施例所公开的管道接箍检测装置的结构示意图。
其中，1为内层管，2为外层管，3为检测组件，4为数据处理器，5为密封件，6为防爆盒，7为防爆管，31为励磁线圈，32为检测线圈。
具体实施方式
本发明的核心是提供一种管道接箍检测装置，以便能够避免由于管道发生晃动而对管道接箍位置产生误判，提高管道接箍检测的准确性。
为了使本技术领域的人员更好地理解本发明方案，下面结合附图和具体实施方式对本发明作进一步的详细说明。
请同时参考图1，图1为本发明实施例所公开的管道接箍检测装置的结构示意图。
本发明实施例所提供的管道接箍检测装置，主要应用在修井或测井过程中的油管提升作业中，该管道接箍检测装置包括内层管1和外层管2，内层管1的直径足以保证管道以及管道接箍正常通过，外层管2套设在内层管1的外部，内层管1和外层管2之间形成环形安装腔，该管道接箍检测装置还包括多套检测组件3以及与检测组件3相连的数据处理器4，其中检测组件3沿轴向间隔绕设在内层管1上，并且位于环形安装腔内，如图1中所示，检测组件3中包括励磁线圈31和检测线圈32，数据处理器4具体是与检测组件3中的检测线圈32相连，并且数据处理器4用于比较不同检测线圈32中的感应电动势的差值，数据处理器4中存储有预设差值，并且仅当任意两个检测线圈32中的感应电动势差值大于等于预设差值时，数据处理器4发出接箍信号。
以油管接箍检测为例进行原理说明，每套检测组件3内的励磁线圈31用于给各自的检测线圈32提供稳定的磁场，由于当油管以及油管接箍通过内层管1时充当了铁芯的作用，从而引起磁感应强度的变化，而油管和油管接箍部分的壁厚不同，对磁感应强度的影响也就不同，这就使得检测线圈32内所产生的电动势不同。
当任意两个检测线圈32中的感应电动式差值达到预设差值时，表明其中一个检测线圈32检测的是油管接箍，另外一个检测线圈32所检测到的是油管，此时数据处理器4将发出接箍信号，以便告知操作人员注意接箍的出现；而当因管道晃动引起检测线圈32内的电动势发生变化时，由于各个检测线圈32内的瞬时电动势变化一致，因而检测线圈32中感应电动势的差值不会达到预设差值，此时数据处理器将不会发出接箍信号，这就有效避免了在采用单个线圈检测时容易出现的油管接箍误判的情况发生，从而有效提高了管道接箍检测的准确性。
如图1中所示，本发明实施例中所公开的管道接箍检测装置中，环形安装腔的两端还安装有密封件5，内层管1、外层管2以及密封件5形成一个封闭的环形安装腔，以便于使整个检测部位达到油田作业的防爆等级。
本领域技术人员容易理解的是，检测组件3可以设置有两套或者两套以上，在实际检测过程中，两套检测组件3足以保证对管道接箍进行准确的检测，当设置有多套检测组件3时，可以将全部检测组件3中的检测线圈32均与数据处理器4相连，也可以仅将其中两套检测组件3中的检测线圈32与数据处理器4相连，其余检测组件3可以作为备用件，以便降低后期设备的维护成本。
优选的，两套检测组件3之间的间隔大于待检测的管道接箍的轴向长度，数据处理器4设置在防爆盒6中，以便于满足油田作业中的防爆等级要求，为了进一步优化方案，本发明实施例中还将用于连接检测线圈32和数据处理器4的连接线路穿设在防爆管7中，如图1中所示。
为了能够有效提醒操作人员，本发明实施例中还设置了与数据处理器4相连的扬声器，在发出接箍信号的同时，数据处理器4还控制扬声器发出提示音，以便提醒操作人员注意管道接箍的出现。
本实施例中提供了另外一种提醒操作人员的技术方案，数据处理器4还可与提示灯相连，在发出接箍信号的同时，数据处理器4还控制提示灯发光提示操作人员。
以上对本发明所提供的管道接箍检测装置进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。
Claims (8)
1.一种管道接箍检测装置，包括可供管道以及管道接箍通过的内层管(1)、套设在所述内层管(1)外部的外层管(2)，所述内层管(1)和所述外层管(2)之间形成环形安装腔，其特征在于，还包括：
间隔绕设在所述内层管(1)上，且位于所述环形安装腔内的多套检测组件(3)，所述检测组件(3)中包括励磁线圈(31)和检测线圈(32)；
与所述检测线圈(32)相连，且用于比较不同检测线圈(32)中感应电动势差值的数据处理器(4)，所述数据处理器(4)中存储有预设差值，且仅当任意两个所述检测线圈(32)中的感应电动势差值大于等于所述预设差值时，所述数据处理器(4)发出接箍信号。
2.根据权利要求1所述的管道接箍检测装置，其特征在于，所述环形安装腔的两端还安装有密封件(5)。
3.根据权利要求1所述的管道接箍检测装置，其特征在于，所述检测组件(3)为两套。
4.根据权利要求3所述的管道接箍检测装置，其特征在于，两套所述检测组件(3)之间的间隔大于待检测的管道接箍的轴向长度。
5.根据权利要求1所述的管道接箍检测装置，其特征在于，所述数据处理器(4)设置在防爆盒(7)中。
6.根据权利要求5所述的管道接箍检测装置，其特征在于，用于连接所述检测线圈(32)和所述数据处理器(4)的连接线路穿设在防爆管(7)中。
7.根据权利要求1所述的管道接箍检测装置，其特征在于，还包括与所述数据处理器(4)相连的扬声器，且在发出接箍信号时，所述数据处理器(4)还控制所述扬声器发出提示音。
8.根据权利要求1所述的管道接箍检测装置，其特征在于，还包括与所述数据处理器(4)相连的提示灯，且在发出接箍信号时，所述数据处理器(4)还控制所述提示灯发光提示。
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