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动力仪是记录有杆泵光杆负荷变化的仪器。它所测得的示功图在抽油井管理中是分析抽油设备工作状况,特别是判断井下设备故障的不可缺少的第一性资料。目前,国内各油田所用CY611型水力动力仪,在使用中操作上存在的主要问题是必须把抽油机停下,并卸去光杆负荷后,才能将仪器安装在悬绳器上。而停机和卸荷操作最少需要二人配合进行,不仅操作麻烦,而且不安全。卸荷时,卡瓦还会损坏光杆,易将井口盘根拉坏,造成漏油。另外,在有些井上由于停抽所测得的示功图不能真实反映停抽前油井生产情况。
Power meter is a record rod pump light rod load changes in equipment. The dynamometer it measured is an indispensable first-class material in the pumping well management to analyze the working condition of the pumping equipment, especially to determine the downhole equipment failure. At present, the major problems in operation of the CY611 hydrodynamic power plant used by various domestic oilfields are that the pumping unit must be stopped and the polished rod load must be removed before the instrument can be installed on the suspension rope. The shutdown and unloading operations at least two people with the cooperation, not only the operation of trouble, but also unsafe. Unloading, slips will also damage the polished rod, easily pull the wellhead packing bad, resulting in oil spills. In addition, the dynamometer measured in some wells due to stop pumping can not truly reflect the production of wells prior to stop pumping.