春光油田井筒掺稀降黏稠稀油动态混合流动特征研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Dynamic mixed flow characteristics of wellbore dilution viscosity reducing of Chunguang oilfield heavy well 作者：马海 英文作者：MA Hai;Petroleum Engineering Research Institute of Henan Oilfield Company, SINOPEC; 关键词：春光油田 ; 稠油开发 ; 降黏工艺 ; 流动特征 英文关键词：Chunguang oilfield;;heavy oil development;;viscosity reduction process;;flow characteristics 中文刊名：SYHN 英文刊名：Petroleum Geology and Engineering 机构：中国石化河南油田分公司石油工程技术研究院; 出版日期：2019-05-25 出版单位：石油地质与工程 年：2019 期：v.33 语种：中文; 页：SYHN201903021 页数：4 CN：03 ISSN：41-1388/TE 分类号：94-97

摘要

稠油在举升过程中随着井筒温度的降低,原油黏度不断上升,流动性变差,举升难度变大。掺稀能降低井筒原油黏度,有效减小举升摩阻,是井筒降黏的常用工艺。根据春光油田现场掺稀降黏工艺流程,建立稠油降黏井筒流动室内评价装置,模拟了套管掺稀举升过程中稠稀油的动态混合过程;实验测定了管流阻力的随注入速度及含水率在不同温度条件下的变化特征,模拟了不同掺稀比例条件下的黏度变化和降黏率,形成了一套油井产液量与出油温度、掺稀比例对应关系图版,为井筒掺稀降黏工艺的现场应用提供了依据。
        During the lifting process, with the decrease of wellbore temperature, the viscosity of crude oil increases continuously, the fluidity becomes poor and the lifting becomes more difficult. Dilution can reduce the viscosity of wellbore crude oil and effectively reduce the lift friction, which is a common process for wellbore viscosity reducing. According to the process flow of in-situ mixing of light and heavy oil in Chunguang oilfield, an indoor evaluation device for heavy oil wellbore flow was established to simulate the dynamic mixed process of light and heavy oil in the process of casing mixed with light and heavy oil. Through the experiment,the change characteristics of the injection rate and water cut of the casing flow resistance under different temperature conditions were measured, the viscosity change and viscosity reducing rate under different mixing ratios were simulated, and then a set of corresponding diagrams of the relationship between oil production volume and oil production temperature and dilution ratio was formed, which provided a basis for effectively guiding the field application of wellbore dilution viscosity reducing process.

引文

[1]孟科全,唐晓东.稠油降黏技术研究进展[J].天然气与石油,2009,28(1):41–45.
    [2]鄢宇杰,李永涛.塔河油田掺稀降黏技术研究与应用[J].石油地质与工程,2012,28(2):139–141.
    [3]马新仿,张士诚,杨胜来,等.超稠油掺稀油开采实验及数值模拟研究[J].中国石油大学学报(自然科学版),2006,30(4):63–66.
    [4]张荣军,李海军,任月玲.塔河油田深层稠油掺稀降黏技术[J].西安石油大学学报(自然科学版),2009,24(3):84–87.
    [5]张锐.稠油热采技术[M].北京:石油工业出版社,1999:73–75.
    [6]柳荣伟,陈陕玲,周宁.稠油降黏技术及降黏机理研究进展[J].精细石油化工进展,2008,9(4):20–24.
    [7]张素青,张祖国,柯文奇,等.新疆深层稠油井筒掺稀降黏举升摩阻分析[J].石油钻采工艺,2013,35(6):92–93.
    [8]马海,王海娟,柴细琼,等.春光油田超稠油井筒降黏技术应用分析[J].石油地质与工程,2018,32(1):120–122.
    [9]鄢宇杰,李永寿,邱小庆.塔河油田掺稀降黏技术研究及应用[J].石油地质与工程,2012,26(6):108–110.