油气藏评价与开发 ›› 2020, Vol. 10 ›› Issue (5): 103-107.doi: 10.13809/j.cnki.cn32-1825/te.2020.05.015

• 综合研究 • 上一篇    下一篇

红山稠油油藏蒸汽吞吐CO产出规律物理模拟研究

杨生榛1(),刘冬冬1,蒲万芬2,朱秋波1,杨洋2()   

  1. 1.中国石油克拉玛依红山油田有限责任公司,新疆 克拉玛依 834000
    2.西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都610500
  • 收稿日期:2019-03-27 出版日期:2020-10-26 发布日期:2020-09-24
  • 通讯作者: 杨洋 E-mail:yangsz688@petrochina.com.cn;yy24king@163.com
  • 作者简介:杨生榛(1962 —),男,博士,教授级高级工程师,主要从事稠油开发方面的研究与生产工作。地址:新疆克拉玛依市克拉玛依区宝石路278号,邮政编码:834000。E-mail: yangsz688@petrochina.com.cn
  • 基金资助:
    克拉玛依红山油田有限责任公司技术服务项目“红山油田红003井区CO成因分析及治理对策研究”(HS-2015-JSHZSCQ-WB018)

Physical simulation of output rule for carbon monoxide in cyclic steam stimulation process of Hongshan heavy oil reservoir

YANG Shengzhen1(),LIU Dongdong1,PU Wanfen2,ZHU Qiubo1,YANG Yang2()   

  1. 1. Karamay Hongshan Oilfield Co. Ltd., CNPC, Karamay, Xinjiang 834000, China
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2019-03-27 Online:2020-10-26 Published:2020-09-24
  • Contact: YANG Yang E-mail:yangsz688@petrochina.com.cn;yy24king@163.com

摘要:

针对红山油田蒸汽吞吐开发过程中CO生成量超标的问题,开展了相应的室内研究工作。通过物理模拟及多参数敏感性分析研究了蒸汽温度、注汽量、焖井时间等工艺参数对于CO生成量的影响规律,并根据工艺参数交互作用下CO的产出规律提出了相应的防治措施建议。结果表明:蒸汽温度、注汽量、焖井时间三个工艺参数中蒸汽温度是影响最大的主控因素,注汽量影响其次,焖井时间影响最小;降低蒸汽温度可以有效减少CO的生成量,但蒸汽温度降低至220 ℃以下时原油产量会受到较大负面影响。因此,对于红山油田CO超标程度相对较低的井,建议将蒸汽温度降低至220 ℃使CO生成量降低至安全范围以下,对于CO超标程度相对较高的井,建议将蒸汽温度降低至220 ℃以下,同时增大注汽量,在降低CO生成量至安全范围以下的同时保证周期采油量不发生明显的降低。

关键词: 蒸汽吞吐, 稠油, CO, 物理模拟, 主控因素

Abstract:

In order to solve the problem of excess production of carbon monoxide in cyclic steam stimulation process of Hongshan oilfield, the corresponding laboratory researches have been carried out. Through physical simulation experiments and multi-parameter sensitivity analysis, the effect of technological parameters such as steam temperature, steam injection volume, and soaking time on carbon monoxide output concentration have been investigated. Furthermore, the possible solutions for carbon monoxide production have been proposed based on the effects of different factors. The results show that the influencing order of the three dominant factors is steam temperature, steam injection volume and soaking time. Reducing the steam temperature can effectively reduce the carbon monoxide output concentration, but when the steam temperature drops below 220 ℃, the crude oil production will be adversely affected. Therefore, for the wells in Hongshan oilfield with relative low carbon monoxide exceeding degree, it is recommended to reduce the steam temperature to 220 ℃ to keep the carbon monoxide concentrations below safe levels; for those ones with relative high exceeding degree, in addition to the above measures, the steam injection volume should be increased to ensure that the periodic oil production does not decrease significantly.

Key words: cyclic steam stimulation, heavy oil, carbon monoxide, physical analogue, dominant factor

中图分类号: 

  • TE991