含气油井采出液低温集输工艺界限研究  

Research on the limits of low-temperature gathering and transportation process of produced liquid in gas bearing oil wells

作　　者：蒋勃宇 JIANG Boyu(No.5 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第五采油厂,黑龙江省大庆市163513

出　　处：《石油石化节能与计量》2025年第1期54-58,64,共6页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：老油田因开发时间较长,存在产液量低、含水率高、能耗大等问题。为降低老油田高含水区块的运行能耗,针对低含气油井和高含气油井开展了降温实验,根据井口回压和进站温度随时间的变化规律,获取了含气油井采出液的低温集输工艺界限。结果显示:低含气油井在降温过程中出现了两个压力突变点,高含气油井在降温过程中压力呈不规则变化,但也出现压力突变区域;产液量越大、含水率越高、气液比越大,越有利于油井进行低温集输。推广区块内有55口油井从双管掺水工艺转为低温集输工艺,实施后全年可节约运行费用235.9万元,减少CO_(2)排放量为2650 t,节能减排效果明显。Due to the long development time of old oilfields,there are some problems such as low liquid production,high water cut and large energy consumption.In order to reduce the operation energy consumption of high water cut block in the old oilfield,the cooling experiment has been carried out for the low gas-containing oil well and high gas-containing oil well,the change rule of wellhead back pressure and inlet station temperature with time has been determined,and the limits of low temperature gathering and transportation process of the produced liquid in the gas-containing oil well has been obtained.The results show that there are two abrupt pressure points in the cooling process of low gas-containing oil well.The pressure appears irregular changes in the cooling process of high gas-containing oil well,but there are also sudden pressure regions.The larger the liquid production gets,the higher the water cut gets and the higher the gas-liquid ratio gets,the more favorable the low temperature gathering and transportation of oil well gets.A total of 55 oil wells in the promotion block changed from the double pipe water blending process to the low-temperature gathering and transportation process.After the implementation,it saves 2359000 yuan in annual operating costs and reduces annual carbon emissions by 2650 t,with obviously energy conservation and emission reduction effect.

关 键 词：含气油井 气液比 采出液 低温集输 粘壁温度 井口回压 

分 类 号：TE3[石油与天然气工程—油气田开发工程]