|本期目录/Table of Contents|

[1]杨万有 郑春峰 李 昂.基于临界干扰量的动态清蜡周期预测新模型[J].中国海上油气,2019,31(05):124-132.[doi:10.11935/j.issn.1673-1506.2019.05.013 ]
 YANG Wanyou ZHENG Chunfeng LI Ang.A critical interference-based new model for dynamic wax removal cycle prediction[J].China Offshore Oil and Gas,2019,31(05):124-132.[doi:10.11935/j.issn.1673-1506.2019.05.013 ]
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基于临界干扰量的动态清蜡周期预测新模型()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年05期
页码:
124-132
栏目:
钻采工程
出版日期:
2019-10-10

文章信息/Info

Title:
A critical interference-based new model for dynamic wax removal cycle prediction
文章编号:
1673-1506(2019)05-0124-09
作者:
杨万有 郑春峰 李 昂
(中海油能源发展股份有限公司工程技术分公司 天津 300452)
Author(s):
YANG Wanyou ZHENG Chunfeng LI Ang
(CNOOC EnerTech-Drilling & Production Co., Tianjin 300452, China)
关键词:
临界干扰量 动态清蜡周期 预测模型 电泵井 渤海油田
Keywords:
critical interference amount dynamic wax removal cycle prediction model ESP well Bohai oilfield
分类号:
TE358+.2
DOI:
10.11935/j.issn.1673-1506.2019.05.013
文献标志码:
A
摘要:
渤海油田井筒动态结蜡剖面受流体温度场、压力场分布影响无法准确预测,易使结蜡电泵油井的生产协调点向左偏移,生产井产量下降、井底流压升高。首次定义了临界干扰产液量、临界干扰产量百分比、临界干扰结蜡厚度及对应的清蜡周期,按照不同程度的临界干扰百分比将清蜡周期划分为安全生产、过渡生产和危险生产等3个生产区域。应用节点系统分析方法,综合考虑动态结蜡剖面、温度、压力与产量之间的相互影响,建立了一种基于临界干扰量的动态清蜡周期预测新模型,并对金县1-1油田3口井15个清蜡周期内的生产动态及清蜡周期影响因素进行了计算分析,结果表明:新模型预测的清蜡周期与实测数据平均误差为10.6%,可满足现场需要; 在相同临界干扰产量百分比条件下,随着产液量、含水率以及气油比的增加,清蜡周期随之增加。本文研究成果可为油田清防蜡工艺优选、生产制度制定提供参考。
Abstract:
Influenced by the distributions of fluids temperature and pressure fields, the dynamic wax formation profile of wellbores in Bohai oilfield is hard to be accurately predicted, which makes the production coordination point of the wax-prone ESP well shift to the left, the production of oil well decrease, and the bottomhole flow pressure rise. For the first time, the critical interference liquid production volume, the critical interference production percentage, the critical interference wax thickness and the corresponding wax removal cycle were defined. The wax removal cycle was divided into three regimes of safe production, transitional production and hazardous production according to different degrees of critical interference percents. Based on the analysis method of node system, by comprehensively considering the interactions between dynamic wax-forming profile, temperature, pressure and production, a critical interference-based new dynamic wax removal cycle prediction model was established. The new model was used to calculate and analyze the production performance and the factors affecting the wax removal cycle in 15 wax-removal cycles of 3 wells in Jinxian 1-1 oilfield. The results show that the error between the predicted wax removal cycle of this model and the actual cycle is only 10.6%, and this model is able to meet the field demands; under the same critical interference production percentage, the wax removal cycle increases with the liquid production, water cut and gas-oil ratio. The research results in this paper can provide reference for stipulating the wax-proof/removal and production systems of oilfield.

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项 “海上稠油油田高效开发钻采技术”子课题“海上高效注采系统关键技术研究(编号:2016ZX05025-002-005)”部分研究成果。 第一作者简介: 杨万有,男,高级工程师,1989年毕业于原大庆石油学院,长期从事海上采油工艺研究及管理工作。地址:天津市塘沽区渤海石油路688号滨海新村西区研究院主楼315室(邮编:300452)。E-mail:yangwy3@cnooc.com.cn。 通信作者简介: 郑春峰,男,高级工程师,2010年毕业于中国石油大学(北京)油气田开发工程专业,获硕士学位,长期从事油气田开发与开采技术工作。地址:天津市塘沽区渤海石油路688号滨海新村西区研究院主楼102室(邮编:300452)。E-mail:zhengchf@cnooc.com.cn。
更新日期/Last Update: 1900-01-01