会议于4月5日至6日在中原石油勘探局召开。中原石油勘探局局长刘锦信致欢迎辞，石化集团公司油田部总工程师常子恒作了总结讲话。与会代表充分交流了各油田企业长期实践过程中总结出来的最新实用采油工程技术。会上，中原油田介绍了水泥分层挤堵工艺管柱技术，河南油田介绍了偏 The meeting was held in Zhongyuan Petroleum Exploration Bureau from April 5 to April 6. Welcome to the speech of Liu Jinxin, director of Zhongyuan Petroleum Exploration Bureau, and Chang Ziheng, Chief Engineer of Oilfield Dept. of Petrochemical Corporation made a concluding remarks. The participants fully exchanged the latest practical oil recovery engineering technology summarized by the oilfield enterprises in the long-term practice. At the meeting, the Central Plains Oilfield introduced the technology of stratified plugging of cement pipe technology, Henan Oilfield introduced partial