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随着坪桥区块近20年的持续开发,单井产能逐年降低,油井泵效低下。井筒状况持续恶化,井筒脏、结蜡、结垢导致作业频次增加,占井周期长,影响采油时率,多次作业还导致油管杆丝扣磨损,影响使用寿命。使用杆式泵可有效缩短占井周期,减少作业时产生的油管杆磨损,提高油井泵效和采油时率。
With the continuous development of Pingqiao block in recent 20 years, the productivity of single well decreases year by year, and the well pumping efficiency is low. The wellbore condition continued to deteriorate. The wellbore was dirty, waxed and fouled, which led to the increase of operating frequency and the long well interval, which affected the oil recovery rate. Multiple operations also led to the wear of the threaded rod of the oil pipe rod and affected the service life. The use of rod pump can effectively reduce the occupation of wells cycle, reduce the tubing rod wear and tear generated during operation, improve the pumping efficiency and oil production rate.