基于幂律流体模型的渤海油田注聚管柱注入能力分析

发布时间：2018-11-22 15:50

【摘要】：考虑聚合物溶液的非牛顿性和海上注聚管柱的特点,提出了油管注聚和环空注聚情况下聚合物溶液摩阻计算方法,利用此方法对渤海S油田注聚井段进行了相关计算,指出了该油田注聚管柱中流体摩阻较大的管柱,并通过分析不同管柱和流体组合情况,指出了不同日注聚量情况下应采用的注聚管柱。在此基础上,对渤海S油田注聚井最大井口注入压力进行了计算,结果表明该油田注聚井大部分注聚段在400 m3/d注入量时井口注入压力有0.5~1.5 MPa提升空间,在600 m3/d注入量时井口注入压力有1~3 MPa提升空间。建议海上油田注聚井实行"一井一策"精细化压力管理,避免统一限定注入压力上限带来的不利限制。
[Abstract]:Considering the non-Newtonian property of polymer solution and the characteristics of offshore polymer injection string, a calculation method of polymer solution frictional resistance in the case of tubing polymer injection and annular polymer injection is proposed. This paper points out the pipe string with large fluid friction in the polymer injection string in this oilfield, and by analyzing different pipe string and fluid combination, points out that the polymer injection string should be used under different daily polymer injection quantity. On this basis, the maximum wellhead injection pressure of polymer injection wells in Bohai Sea S oilfield is calculated. The results show that the injection pressure of most polymer injection wells in this oilfield has 0.5 ~ 1. 5 MPa lift space when the injection rate is 400 m3 / d. At the injection rate of 600m3 / d, the wellhead injection pressure has 1 ~ 3 MPa lift space. It is suggested that "one well, one policy" should be used to fine the pressure management in offshore oil field polymer injection wells, so as to avoid the unfavorable limitation caused by the unified limit of injection pressure upper limit.
【作者单位】：海洋石油高效开发国家重点实验室;中海油研究总院;
【基金】：“十三五”国家科技重大专项“海上稠油化学驱油技术(编号:2016ZX05025-003)” 中海石油(中国)有限公司天津分公司生产研究项目“注聚井最大井口注入压力计算方法研究(编号:2013OT-037)”部分研究成果
【分类号】：TE952

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