Research On The Supporting Technology Of The Lifting Wells In The Gangdong Oilfield

In Dagang oil field to improve oil recovery, east oil field in Hong Kong four step by step implementation of polymer flooding development blocks, with the expansion of application of polymer flooding, see well well number increasing, the benefit from the polymer injection Wells in the polymer content in produced fluid monitoring found that in a year later, the polymer injection well benefit see together with 117 Wells in different degree, accounting for 88% of the number of production Wells, see the average concentration of 116.8 mg/L,946.9 mg/L. Well see together after production problems increase, benefit from the polymer injection Wells TDD sucker rod has gradually appeared out of sync, the phenomenon of oil well pump does not work, frequent sand card sand buried intensified, rod eccentric wear of production problems, pump inspection cycle is shortened, production rate decline, seriously affecting the effects of polymer injection block development.Benefit in this paper, the Gang east oil field polymer injection Wells, this paper analyzes the problems existed in production process, summarized the cause the main cause of abnormal benefit well, combined with the present status of the lifting technology, aiming at the problems of various production, targeted to take measures, through field application, the techniques of optimization and optimization of lifting process, formation sand production and delay the benefit from the polymer injection well pipe problem, and summarizes a set of benefit from the polymer injection well the application principle of lifting process.Through a lot of practical application, this paper summarizes the following benefit from the polymer injection well lifting technology form a complete set of application principle: according to the characteristics of the polymer injection benefit sand production Wells, summarizes the benefit from the polymer injection sand well lifting technology form a complete set of application principle, containing polymer injection benefit sand buried well lifting technology form a complete set of application principle, benefit from the polymer injection well lifting techniques used for sand card principle and benefit from the polymer injection sand buried sand CARDS well lifting process principle of form a complete set of application; Benefit for polymer injection Wells rod tube root causes, and summarizes the problem of benefit from the polymer injection rod tube well lifting technology form a complete set of application principle, containing polymer injection benefit rod tube eccentric wear well lifting technology form a complete set of application principle, benefit from the polymer injection well lifting off the application principles and benefit from the polymer injection process card machine drive shaft lifting technology principle of form a complete set of application; Through the benefit from the polymer injection Wells of the lifting design the characteristics and standardize management, facilitate lifting reference for the design personnel, improve the quality of benefit from the polymer injection well lifting process design, to improve the polymer injection block recovery to a great extent.