Application of Pumping Pump Technology in Water Injection System of No.2 Oil Production Plant

Recently, the second pumping plant pumping system pumping pump technology transformation project is shutting down the Union Station 801 injection pump station construction, which marks the pump control pump technology in the plant has entered the stage of application and promotion. For many years, injecting water into a field through a centrifugal pump to effectively replenish formation energy and increase oil recovery is an important technical measure to ensure the plant's stable production and increase production. As the comprehensive moisture content of the oil field rises, the centrifugal pump in each water injection pump station put into operation in the late 1980s has a low degree of automation due to large design flow rate and high lift and small motor power. As a result, "Little Mara cart," high water consumption, water injection pump inefficient phenomenon. In order to improve the pump efficiency, reduce consumption. According to the actual production of pumping stations, relevant technical personnel repeatedly demonstrated and reformed the scheme after many field surveys, and put forward the application plan of pumping controlled pump (PCP) technology. According to the staff, pump-controlled pump (PCP) technology is a new type of centrifugal pump energy-saving technology, which mainly consists of water injection pump, front pump, power distribution cabinet and computer control system. It is mainly through the front end of a large-scale water injection unit in series with a front pump, supporting the inverter control, PLC control and protection technology, through the front-end front pump continuous frequency control to adjust the main water unit outlet pressure and flow purposes, and thus indirectly Realization of large-scale high-pressure water injection unit frequency control. The plant's first pump-pump technology applied in December 2008 in the injection joint station 702 water pumping station put into operation. After the transformation, the displacement of water injection pump station 702 increased from 5100-6350m3 / d to 6400-7800m3 / d, the efficiency increased from 68.2% to 73.6%, and the main pump efficiency increased from 72.1% to 75.5%. Unit consumption from the original average of 6.35kWh / m3 reduced to 5.7kWh / m3, annual energy saving 150 × 104kwh, energy-saving effect is obvious.

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