油气藏评价与开发 ›› 2021, Vol. 11 ›› Issue (3): 452-458.doi: 10.13809/j.cnki.cn32-1825/te.2021.03.022

• 综合研究 • 上一篇    下一篇

耐高温栲胶堵剂的研制及油藏适应性评价

刘刚1(),王俊衡2(),王丹翎3,颜永何1,蒋雪峰1,王倩1   

  1. 1.中国石油新疆油田分公司勘探开发研究院,新疆 克拉玛依 834000
    2.西南石油大学,四川 成都 610500
    3.中海石油(中国)有限公司深圳分公司,广东 深圳 518054
  • 收稿日期:2020-03-25 发布日期:2021-06-24 出版日期:2021-06-22
  • 通讯作者: 王俊衡 E-mail:fcliug@petrochina.com.cn;1187395805@qq.com
  • 作者简介:刘刚(1989—),男,硕士,工程师,从事稠油开发研究。地址:新疆克拉玛依市克拉玛依区准噶尔路32号中国石油新疆油田分公司勘探开发研究院,邮政编码:834000。E-mail: fcliug@petrochina.com.cn
  • 基金资助:
    国家科技重大专项“稠油多介质蒸汽驱技术研究与应用”(2016ZX05012-001);中国石油重大专项“新疆油田浅层稠油稳产提效技术研究与应用”(2017E-04-08)

Development and reservoir adaptability evaluation of a high temperature resistant plugging agent: tannin extract

LIU Gang1(),WANG Junheng2(),WANG Danling3,YAN Yonghe1,JIANG Xuefeng1,WANG Qian1   

  1. 1. Exploration and Development Research Institute of PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China
    2. Southwest Petroleum University, Chengdu, Sichuan 610500, China
    3. Shenzhen Branch of CNOOC(China) Co., Ltd., Shenzhen, Guangdong 518054, China
  • Received:2020-03-25 Online:2021-06-24 Published:2021-06-22
  • Contact: WANG Junheng E-mail:fcliug@petrochina.com.cn;1187395805@qq.com

摘要:

稠油油藏蒸汽驱控制汽窜使用的耐高温堵剂存在强度低、老化稳定性差等问题,急需研发新型耐高温堵剂,推进现场应用。针对新疆油田九6区齐古组稠油油藏层间非均质性强导致的蒸汽驱汽窜严重、泡沫驱效果差等生产技术难题,研制出了由磺化栲胶、交联剂和促进剂组成的适用于高温油藏的磺化栲胶堵剂体系。通过静态评价实验,优化出堵剂配方为:0.6 %磺化栲胶+(2.0 %~2.5 %)醛类交联剂Ⅰ+(1.0 %~2.0 %)酚类交联剂Ⅱ+(0.05 %~0.06 %)促进剂。油藏适应性评价结果表明:在油藏温度下老化30 d后堵剂强度保持H级以上,堵剂的封堵效率在94 %以上,研究成果为克拉玛依油田九6区齐古组稠油油藏控制蒸汽窜技术的现场应用奠定了基础。

关键词: 稠油油藏, 汽窜, 耐高温堵剂, 磺化栲胶, 油藏适应性评价

Abstract:

There are several problems in the high temperature resistant plugging agent used in steam flooding of heavy oil reservoirs to control steam channeling, such as low strength and poor long-term stability. So, it is urgent to develop a new type of high temperature resistant plugging agent to promote on-site application. In order to solve the technical problems caused by strong inter-layer heterogeneity of the heavy oil reservoirs in District 9-6 of Qigu Formation in Xinjiang Oilfield, including severe steam channeling and poor foam flooding effects, a plugging agent system suitable for high temperature reservoirs and composed of sulfonated tannin extract, cross-linking agent and accelerant has been developed. By the static evaluation experiment, it is found that the optimized formula of the plugging agent is as follows: 0.6 % sulfonated tannin extract + (2.0 % ~ 2.5 %) aldehyde cross-linking agent Ⅰ +(1.0 % ~ 2.0 %) phenol cross-linking agent Ⅱ +(0.05 % ~ 0.06 %) accelerant. The evaluation of reservoir adaptability shows that the strength of the plugging agent remains above level H after 30 days of aging at the reservoir temperature, and the plugging efficiency is above 94 %. It has laid a foundation for the field application of steam channeling control technologies in the heavy oil reservoirs of District 9-6 of Qigu Formation in Karamay Oilfield.

Key words: heavy oil reservoir, steam channeling, high temperature resistant plugging agent, sulfonated tannin extract, reservoir adaptability evaluation

中图分类号: 

  • TE39