石油大学(华东)零件教研室与烟台采油设备厂合作研制的CYJQ14-5-73HB气平衡抽油机失载保护装置于3月18日在烟台市通过评审,并且国家专利局已予受理此项专利。 我国油田开发生产使用的CYJQ14-5-73HB气平衡抽油机是以重量轻、节能效果好、平衡调节方便等优点被应用的。但由于部分生产井的井况有时十分恶劣,近年来先后在辽河、胜利和中原等油田发生过六起抽油杆拉断突然失载事故,两起“驴头”抛出 The CYJQ14-5-73HB gas balance pumping unit no-load protection device jointly developed by the Teaching and Research Institute of Petroleum University (East China) and the Yantai Oil Recovery Equipment Factory passed the assessment in Yantai on March 18, and the State Patent Office has accepted the patent . The CYJQ14-5-73HB gas balance pumping unit developed and produced in China’s oilfields is applied with the advantages of light weight, good energy-saving effect, easy balance adjustment and the like. However, due to the sometimes very poor well condition of some production wells, in recent years, there have been six oil pumping rods suddenly losing load accidents in Liaohe, Shengli and Zhongyuan oil fields, and two “donkeyheads” were thrown out