研究论文

伊朗稠油沥青稠化封堵技术研究与应用I:原位氧化

  • 任立伟;夏柏如;唐文泉;肖超;郭京华
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  • 1. 中国地质大学(北京)工程技术学院, 北京 100083;2. 中石化石油工程技术服务有限公司, 北京 100101;3. 中国石化石油工程技术研究院, 北京 100101;4. 中国石化国际石油勘探开发有限公司, 北京 100083

收稿日期: 2013-05-27

  修回日期: 2013-06-26

  网络出版日期: 2013-08-18

Technology Research and Apply on the Bodying and Sealing of Bitumen in Iran I:In-situ Oxidation

  • REN Liwei;XIA Bairu;TANG Wenquan;XIAO Chao;GUO Jinghua
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  • 1. College of Engineering and Technology, China University of Geosciences, Beijing 100083, China;2. Sinopec Oilfield Service Corporation, Beijing 100101, China;3. Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China;4. Sinopec International Petroleum Exploration and Production Corporation, Beijing 100083, China

Received date: 2013-05-27

  Revised date: 2013-06-26

  Online published: 2013-08-18

摘要

伊朗Y油田稠油沥青污染严重影响钻井施工安全,多口井报废。稠油沥青可流动性越好,复杂情况处理难度越大。为降低复杂情况的处理难度,遂借鉴稠油、沥青的老化、氧化、固化等反应机理,稠化稠油沥青,使之在地层孔道中可流动性降低。优选氧化材料进行稠化试验,探讨了试验温度、时间、物料配比、氧气、钻井液对稠化性能的影响。结果显示,氧化材料可有效提高稠油沥青软化点,最高可达120℃。稠化剂F、G、H的稠化效果与试验温度、反应时间成正比例关系,且G的稠化效果受添加量影响较大。在氮气保护时或钻井液体系中,稠化剂的稠化效果降低。氧化材料与堵漏材料复配使用效果更好,可增加桥堵材料滞留和堵漏段塞抗返吐能力,提高压井堵漏成功率。

本文引用格式

任立伟;夏柏如;唐文泉;肖超;郭京华 . 伊朗稠油沥青稠化封堵技术研究与应用I:原位氧化[J]. 科技导报, 2013 , 31(23) : 31 -35 . DOI: 10.3981/j.issn.1000-7857.2013.23.004

Abstract

Bitumen contamination of Y oilfield in Iran had seriously negative effect on drilling safety and caused abandonment of several wells. In reference to aging, oxidation and solidify mechanism of heavy oil and bitumen, oxidizing material was selected optimally for bodying bitumen. The influence of testing temperature, time, and ratio of material, oxygen and drilling fluids were explored. The results showed that oxidation materials can effectively increase bitumen softening point, and bitumen was bodying under simulated formation temperature. The site test showed it is better if oxidation materials and lost circulation materials were used together. The mobility of bodying bitumen in the formation pore decreased, the sealing success rate got improved dramatically and the intrusion rate could be effectively controlled when the mud pump stopped. The difficulty of situations of complexity processing was reduced.
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