Research On The Energy Consumption Analysis And Optimal Use Of Energy Of Crude Oil Gathering And Transportation System In Daqing Oilfield

After Daqing Oilfield came into high water cut stage, the loading rate of oilfield surfaceproduct system generally descended, operating efficiency decreased, and the system energyconsumption ascended. For this reason,"research on the energy consumption analysis and optimal use of energy of crude oil gathering and transportation system in Daqing oilfield"was launched. The research combined crude oil gathering and transportation system efficiency(including pump efficiency, heater efficiency, the efficiency of booster stations, theefficiency of the joint stations, network efficiency and system efficiency) test standards,applied thermodynamic analysis of energy balance, established "black box-gray box"mathematical model for the energy consumption evaluation of crude oil gathering andtransportation system, and developed a "crude oil gathering and transportation systemefficiency and energy analysis software". The research collected test parameters of gatheringand transportation system and pump efficiency, heater efficiency, which came from the Northfifth station in the third oil production plant and LaⅡ-Ⅰstation in the sixth oil productionplant. And the research analyzed crude oil gathering and transportation system efficiency andenergy distribution situation in the test block using the software mentioned above, confirmedall parts of the energy consumption and the distribution law of the crude oilgathering-transportation system, and put forward some concrete measures for energy savingin the test block accordingly. In the actual production process, the error between test resultand the conclusion which was obtained from "crude oil gathering and transportation systemefficiency and energy analysis software" was no more than±20%.The research result willplay an important role in the control of energy consumption rising in production of crude oil,lowering the cost of crude oil production, and realizing high efficiency, low consumption,orderly adjustment and scientific management in the oilfield surface engineering; it willprovide an important theoretical basis for the energy saving technology reform in the oilfieldgathering -transportation system and planning for new block project too.