CN208576042U - 远程控制的预混系统 - Google Patents
远程控制的预混系统 Download PDFInfo
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Abstract
本实用新型公开了一种远程控制的预混系统，包括控制单元、水阀、流量计、灰阀、混浆罐、液位计、混浆装置、密度计和柱塞泵，供水依次通过流量计和水阀进入混浆罐中，供灰通过灰阀进入混浆罐中，液位计设在混浆罐中，与计量清水用流量计共同计量混浆罐中的清水总量，混浆装置用于混浆罐的混浆，密度计设在混浆罐循环管路上，用于监测混浆罐中的灰浆密度，控制单元通过流量计、液位计、密度计和柱塞泵反馈的实时数据控制水阀、灰阀和柱塞泵的开启和关闭。有益效果：实现远程固井设备监控、远程液位自动控制、远程自动供水、远程自动供灰、远程自动预混、远程密度自动控制和远程自动排量。
Description
技术领域
本实用新型属于石油装备领域，具体涉及一种远程控制的预混系统。
背景技术
传统的预混控制为：固井设备操作人员根据固井设备的密度要求情况，手动控制水阀供水、灰阀供灰，达到要求密度时，停止预混，进入正常作业，在此过程中，人员操作繁琐，对操作人员的操作要求较高。而且传统的固井作业操作手一直站在设备上，离柱塞泵及高压管汇只有一步之遥。在进行一些深层高压固井作业时，几十兆帕的高压一直威胁着操作人员的人身及生命安全。
现在固井作业整个井场的设备之间的配合比较差、自动化程度低。
随着固井设备在国内外井场作业中应用越来越广泛，固井作业的工况复杂性与恶劣性使固井设备在作业过程中，对作业的智能化、集中控制要求越来越高。
因此，无论是从操作人员的安全着想，还是满足固井作业中操作的自动化、配合性和便捷性要求，亟待一种远程控制的预混系统，使操作人员远离嘈杂及高压的作业环境，在固井仪表车中，实现远程固井设备监控、远程液位自动控制、远程自动供水、远程自动供灰、远程自动预混、远程密度自动控制和远程自动排量，使固井作业在安全领域迈进了一大步，也使整个固井的工艺自动化水平大大提高。
实用新型内容
本实用新型的目的是克服现有技术的不足，提供一种远程控制的预混系统，使操作人员远离嘈杂及高压的作业环境，在固井仪表车中，实现远程固井设备监控、远程液位自动控制、远程自动供水、远程自动供灰、远程自动预混、远程密度自动控制和远程自动排量，使固井作业在安全领域迈进了一大步，也使整个固井的工艺自动化水平大大提高。
本实用新型是通过以下技术方案实现的：一种远程控制的预混系统，包括控制单元、水阀、流量计、灰阀、混浆罐、液位计、混浆装置、密度计和柱塞泵，供水依次通过所述流量计和水阀进入混浆罐中，供灰通过灰阀进入混浆罐中，液位计设在混浆罐中，与计量清水用流量计共同计量混浆罐中的清水总量，混浆装置用于混浆罐的混浆，密度计设在混浆罐循环管路上，用于监测混浆罐中的灰浆密度，控制单元通过流量计、液位计的数据控制水阀开度实现自动按需供水，控制单元通过控制灰阀开度实现自动供灰，控制单元通过预设密度、控制混浆装置的开启以及密度计对实时数据的监测回传实现自动预混，控制单元通过控制柱塞泵的转速和预设排量实现自动按需排量。
优选地，控制单元包括远程控制单元，远程控制单元由远控PLC处理器和远控操作屏组成，通过对远控操作屏的操作实现远程控制。
优选地，控制单元还包括设备端控制单元，设备端控制单元设在固井作业现场，设备端控制单元由设备端PLC处理器和设备端操作屏组成，通过对设备端操作屏的操作实现固井设备的现场控制。
优选地，远控PLC处理器一端与远控操作屏连接，远控PLC处理器另一端与设备端PLC处理器连接，远控操作屏通过以太网与设备端控制单元通讯。
优选地，当自动预混时，所述混浆罐中的水和灰依次通过混浆装置和密度计再返回到混浆罐中。
优选地，先设定密度值，当所述密度计监测到的密度与设定密度值相同，并维持10秒以上时，控制单元判定自动预混结束并关闭混浆装置。
优选地，混浆装置为循环泵。
优选地，在固井设备现场还设有云台摄像机，用于对固井设备现场进行监控，并通过硬盘录像机进行记录，视频可导出，供日后查看现场作业情况及混浆效果。
与现有技术相比，本实用新型的有益效果：使操作人员远离嘈杂及高压的作业环境，在固井仪表车中，对固井作业中的混浆流程实现远程固井设备监控、远程液位自动控制、远程自动供水、远程自动供灰、远程自动预混、远程密度自动控制和远程自动排量，使固井作业在安全领域迈进了一大步，也使整个固井的工艺自动化水平大大提高。
附图说明
图1是远程控制的预混系统的原理框图。
具体实施方式
如图1所示，一种远程控制的预混系统，包括控制单元、水阀、流量计、灰阀、混浆罐、液位计、混浆装置、密度计和柱塞泵，供水依次通过所述流量计和水阀进入混浆罐中，供灰通过灰阀进入混浆罐中，液位计设在混浆罐中，与计量清水用流量计共同计量混浆罐中的清水总量，混浆装置用于混浆罐的混浆，密度计设在混浆罐循环管路上，用于监测混浆罐中的灰浆密度，控制单元通过流量计、液位计的数据控制水阀开度实现自动按需供水，控制单元通过控制灰阀开度实现自动供灰，控制单元通过预设密度、控制混浆装置的开启以及密度计对实时数据的监测回传实现自动预混，控制单元通过控制柱塞泵的转数和预设排量实现自动按需排量。
控制单元包括远程控制单元，远程控制单元由远控PLC处理器和远控操作屏组成，通过对远控操作屏的操作实现远程控制。
控制单元还包括设备端控制单元，设备端控制单元设在固井作业现场，设备端控制单元由设备端PLC处理器和设备端操作屏组成，通过对设备端操作屏的操作实现固井设备的现场控制。
远控PLC处理器一端与远控操作屏连接，远控PLC处理器另一端与设备端PLC处理器连接，远控操作屏通过以太网与设备端控制单元通讯。
当自动预混时，所述混浆罐中的水和灰依次通过混浆装置和密度计再返回到混浆罐中。
先设定密度值，当所述密度计监测到的密度与设定密度值相同，并维持10秒以上时，控制单元判定自动预混结束并关闭混浆装置。
混浆装置为循环泵。
在固井设备现场还设有云台摄像机，用于对固井设备现场进行监控，并通过硬盘录像机进行记录，可视频导出，供日后查看现场作业情况及混浆效果。
远控操作屏与远控PLC处理器安装在远程控制箱中，两者之间通过网线连接。远程控制箱内的远控PLC处理器与设备端PLC处理器之间通过网线进行通讯连接，从而使远程控制箱可以通过远控操作屏对设备端PLC处理器进行操作与控制。设备端PLC处理器与设备端操作屏通过网线连接。设备端PLC处理器通过混浆罐内的液位计与清水管汇上的流量计采集清水量，通过流量计与液位计的实时反馈，自动远程控制水阀开度，达到预定计算的清水量时，自动关闭水阀。此时打开灰阀开始供灰，自动启动循环泵开始进行自动混浆，当密度计检测密度达到设定密度并维持10秒以上时，控制单元判定自动预混结束，根据预设好的排量，控制柱塞泵进入自动排量控制。
远程控制箱上面板配置一个超薄笔记本，通过设备上装配的网络云台摄像机，实现对设备混浆罐、井场周围作业环境等视频数据进行监视，并通过硬盘录像机进行记录，现场监控视频和施工数据，可以通过3G/4G或卫星通信，实时传输到信息中心。供远程监控中心人员进行现场的数据分析及数据共享。
Claims (8)
1.一种远程控制的预混系统，包括控制单元、水阀、流量计、灰阀、混浆罐、液位计、混浆装置、密度计和柱塞泵，供水依次通过所述流量计和水阀进入混浆罐中，供灰通过灰阀进入混浆罐中，液位计设在混浆罐中，与计量清水用流量计共同计量混浆罐中的清水总量，混浆装置用于混浆罐的混浆，密度计设在混浆罐循环管路上，用于监测混浆罐中的灰浆密度，控制单元通过流量计、液位计的数据控制水阀开度实现自动按需供水，控制单元通过控制灰阀开度实现自动供灰，控制单元通过预设密度、控制混浆装置的开启以及密度计对实时数据的监测回传实现自动预混，控制单元通过控制柱塞泵的转数和预设排量实现自动按需排量。
2.根据权利要求1所述的远程控制的预混系统，其特征在于：所述控制单元包括远程控制单元，远程控制单元由远控PLC处理器和远控操作屏组成，通过对远控操作屏的操作实现远程控制。
3.根据权利要求2所述的远程控制的预混系统，其特征在于：所述控制单元还包括设备端控制单元，设备端控制单元设在固井作业现场，设备端控制单元由设备端PLC处理器和设备端操作屏组成，通过对设备端操作屏的操作实现固井设备的现场控制。
4.根据权利要求3所述的远程控制的预混系统，其特征在于：所述远控PLC处理器一端与远控操作屏连接，远控PLC处理器另一端与设备端PLC处理器连接，远控操作屏通过以太网与设备端控制单元通讯。
5.根据权利要求1所述的远程控制的预混系统，其特征在于：当自动预混时，所述混浆罐中的水和灰依次通过混浆装置和密度计再返回到混浆罐中。
6.根据权利要求1所述的远程控制的预混系统，其特征在于：先设定密度值，当所述密度计监测到的密度与设定密度值相同，并维持10秒以上时，控制单元判定自动预混结束并关闭混浆装置。
7.根据权利要求1所述的远程控制的预混系统，其特征在于：所述混浆装置为循环泵。
8.根据权利要求1所述的远程控制的预混系统，其特征在于：在固井设备现场还设有云台摄像机，用于对固井设备现场进行监控，并通过硬盘录像机进行记录，视频可导出，供日后查看现场作业情况及混浆效果。
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| CN112677314A (zh) * | 2020-12-16 | 2021-04-20 | 中油国家油气钻井装备工程技术研究中心有限公司 | 一种固井用电驱型高能混合器及泥浆预混控制方法 |
| WO2022194202A1 (zh) * | 2021-03-16 | 2022-09-22 | 烟台杰瑞石油装备技术有限公司 | 全电驱固井控制系统 |
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