油气混输工艺在低输量管道安全运行中的优势分析  

Advantages of safe operation of low-throughput pipeline in oil-gas mixed transportation process

作　　者：陈丽丽 孙建利 刘志勇 张光宇 赵启昌 郭晓军 CHEN Lili;SUN Jianli;LIU Zhiyong;ZHANG Guangyu;ZHAO Qichang;GUO Xiaojun(PetroChina Huabei Oilfield Company,Renqiu 062550,China;Beijing Design Branch of China Petroleum Engineering&Construction Corp.,Beijing 100085,China)

机构地区：[1]中国石油华北油田分公司,河北任丘062550 [2]中国石油工程建设有限公司北京设计分公司,北京100085

出　　处：《石油工程建设》2024年第1期38-43,59,共7页Petroleum Engineering Construction

摘　　要：为了保证华北油田某区块J-S输油管道能够在低输量下安全运行,对比分析油气混输和低含水油输送两种技术方案,优选通过油气混输的运行方式降低J-S输油管道最低启输量和启输温度。通过在J站新建伴生气压缩、注入、放空系统,在S站新建分离、过滤、放空系统,利用两相流在管道中的流动特性,提高管道内介质流速,并将J站富余的伴生气资源通过管输的方式输送至S站。设计采用PIPESIM软件及HYSYS软件进行模拟,计算结果相互验证。该方案不但解决了J-S输油管道低输量下安全运行的问题,同时缓解了J油田与S油田伴生资源分布不均匀的矛盾,降低了油田原油生产成本。To ensure that the J-S oil pipeline in a certain block of the North China Oilfield can operate safely under low throughput,this paper applies two technical schemes of oil-gas mixed transportation and low water content oil transmission for comparative analysis.It is preferable to reduce the J-S pipeline lowest starting capacity and starting temperature by the operation mode of oil-gas mixed transportation.A new associated gas compression,injection,and venting system is built at station J and a new separation,and a filtration and venting system is built at station S.The flow rate of the medium in the pipeline is improved by using the flow characteristics of the two-phase flow in the pipeline,and the rich associated gas resources of station J are transported to station S through pipeline transportation.The design is simulated by PIPESIM software and HYSYS software,and the calculation results aremutually verified.This scheme not only solves the problem of safe operation of J-S pipelines with low throughput but also alleviates the contradiction between the uneven distribution of resources associated with J Oilfield and S oilfield,reducing the crude oil production cost of oilfields.

关 键 词：低输量 油气混输 两相流 腐蚀速率 安全经济 

分 类 号：TE832[石油与天然气工程—油气储运工程]