石油勘探与开发 >

2016 , Vol. 43 >Issue 1: 91 - 98

DOI: https://doi.org/10.11698/PED.2016.01.11

油气田开发

异常高温、高盐油藏深部调驱波及控制技术

  • 杨中建 ,
  • 贾锁刚 ,
  • 张立会 ,
  • 吴行才 ,
  • 窦红梅 ,
  • 郭子仪 ,
  • 曾立军 ,
  • 李宏伟 ,
  • 郭立强 ,
  • 贾志伟 ,
  • 方位
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  • 1. 中国石油青海油田钻采工艺研究院；
    2. 中国石油勘探开发研究院；
    3. 中国石化中原油田；
    4. 西南石油大学
杨中建（1982-）,男,四川绵阳人,硕士,中国石油青海油田公司钻采工艺研究院工程师,主要从事调驱、调剖技术研究与应用方面的研究工作。地址：甘肃省敦煌市七里镇,中国石油青海油田公司钻采工艺研究院,邮政编码：736200。E-mail：yangzjqh@petrochina.com.cn

网络出版日期: 2017-01-01

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Deep profile adjustment and oil displacement sweep control technique for abnormally high temperature and high salinity reservoirs

  • YANG Zhongjian ,
  • JIA Suogang ,
  • ZHANG Lihui ,
  • WU Xingcai ,
  • DOU Hongmei ,
  • GUO Ziyi ,
  • ZENG Lijun ,
  • LI Hongwei ,
  • GUO Liqiang ,
  • JIA Zhiwei ,
  • FANG Wei
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  • 1. Drilling and Production Technology Research Institute of PetroChina Qinghai Oilfield Company, Gansu 736202, China;
    2. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
    3. Sinopec Zhongyuan Oilfield Company, Henan 457001, China;
    4. Southwest Petroleum University, Sichuan 610000, China

Online published: 2017-01-01

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摘要

为了提高高温、高盐油藏开发后期注入水波及系数和驱油效率,以尕斯库勒E31油藏为研究对象,开展异常高温、高盐油藏波及控制技术（SCT）研究与矿场试验。可动微凝胶体系性能评价及矿场试验结果表明,基于可动微凝胶调驱体系的SCT技术在目标油藏具有较好的热稳定性,现场实施有效期为100~120 d,通过调整注入粒径、浓度,能有效提高SCT技术实施成功率。不同于聚合物驱、聚合物凝胶驱通过提高波及系数机理提高原油采收率,SCT技术能够提高波及效率和驱油效率,其驱替机理通过室内实验和现场试验得到进一步论证。目标油藏实施6个井组SCT技术后,累计增油1.03×104 t,降水4.79×104 m3,投入产出比1∶2.09。但当国际油价处于低位时,SCT技术在异常高温、高盐油藏开发后期应用可能会有较大风险。图9表4参31

关键词： 高温高盐油藏; 可动微凝胶; 波及控制技术; 深部调驱; 驱油机理; 经济效益

本文引用格式

杨中建 , 贾锁刚 , 张立会 , 吴行才 , 窦红梅 , 郭子仪 , 曾立军 , 李宏伟 , 郭立强 , 贾志伟 , 方位 . 异常高温、高盐油藏深部调驱波及控制技术[J]. 石油勘探与开发, 2016 , 43(1) : 91 -98 . DOI: 10.11698/PED.2016.01.11

Abstract

To improve water flooding sweeping efficiency and oil displacement efficiency in reservoirs with abnormally high temperature and high salinity during late development stage, taking Gasikule E31 reservoir as the research object, lab study and field test of sweep control technique (SCT) were conducted. Performance evaluation and field test results of soft microgel (SMG) agent show that: SCT has good thermal stability in the target reservoir and an effective period of 100-120 d in the field test, and the success rate of SCT can be greatly increased by adjusting particle size and concentration of the gel. Unlike polymer flooding or polymer-gel flooding which improves oil recovery by enhancing sweep efficiency, SCT can improve oil displacement and water sweep efficiency, and its displacement mechanisms have been confirmed by the lab experiment and field test. The SCT has been applied in six well groups in the target reservoir, resulting in a cumulative oil increment of 1.03×104 tons, water production drop of 4.79×104 m3, and an input-output ratio of 1:2.09. But when international oil price is low, SCT project may have high failure risk in application to reservoirs with abnormally high temperature and high salinity.

Key words： high temperature high salinity reservoir; soft microgel; sweep control technology; deep profile control; oil displacement mechanism; economic benefit

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