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伊朗YD油田致密储层酸渣潜在性分析与预防研究

高翔,  蒋建方,  马凤,  曹科学,  齐晶

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文章导航 > 钻井液与完井液  > 2016 >  33(3): 107-111
高翔, 蒋建方, 马凤, 曹科学, 齐晶. 伊朗YD油田致密储层酸渣潜在性分析与预防研究[J]. 钻井液与完井液, 2016, 33(3): 107-111. doi: 10.3969/j.issn.1001-5620.2016.03.022
引用本文: 高翔, 蒋建方, 马凤, 曹科学, 齐晶. 伊朗YD油田致密储层酸渣潜在性分析与预防研究[J]. 钻井液与完井液, 2016, 33(3): 107-111. doi: 10.3969/j.issn.1001-5620.2016.03.022
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GAO Xiang, JIANG Jianfang, MA Feng, CAO Kexue, QI Jing. Analysis of the Potential of Generating Acid Sludge in the Dense Reservoir Formations in Block YD (Iran) and the Prevention of the Acid Sludge Generation[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 107-111. doi: 10.3969/j.issn.1001-5620.2016.03.022
Citation: GAO Xiang, JIANG Jianfang, MA Feng, CAO Kexue, QI Jing. Analysis of the Potential of Generating Acid Sludge in the Dense Reservoir Formations in Block YD (Iran) and the Prevention of the Acid Sludge Generation[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 107-111. doi: 10.3969/j.issn.1001-5620.2016.03.022
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伊朗YD油田致密储层酸渣潜在性分析与预防研究

doi: 10.3969/j.issn.1001-5620.2016.03.022
  • 1.

    中国石油大学(北京)提高采收率研究院, 北京 102249

  • 2. 中石油三次采油重点实验室低渗油田提高采收率应用基础理论研究室, 北京 102249

基金项目: “十二五”国家科技重大专题项目“孔隙型碳酸盐岩油藏提高采收率采油工艺关键技术”（2011ZX05031-003-004）。
详细信息
    作者简介:

    高翔,1988年生,中国石油大学(北京)油气田开发工程专业硕士研究生,研究方向为提高采收率与采油化学。电话15776168183;E-mail:84238273@qq.com。

  • 中图分类号: TE357.12

Analysis of the Potential of Generating Acid Sludge in the Dense Reservoir Formations in Block YD (Iran) and the Prevention of the Acid Sludge Generation

  • 1.

    Enhanced Oil Recovering Research Center, China University of Petroleum, Beijing 102249

  • 2. Basic Theory Research Team of EOR in Low Permeability Oilfield Application, Key Laboratory of Tertiary Oil and Gas Recovery, CNPC, Beijing 102249

    摘要
  • 摘要: 酸化增产施工作业过程中，由于酸液与原油的不配伍可以形成稳定乳状物和酸渣，对储层造成伤害。用SRVR方法对伊朗Khuzestan省YD油田SV储层原油中饱和烃、芳香烃、胶质和沥青质4种组分进行分析，在通过X-Ray衍射与ESEM电镜对该储层岩石成分以及微观孔隙结构进行分析的基础上，开展了在储层条件下油样与新酸和乏酸之间的配伍性实验，评价优选了以抗渣剂、铁离子稳定剂和破乳剂为主要成分的酸化复合添加剂。结果表明油样CⅡ为2.19，很容易出现酸渣问题，而且岩石主要成分为方解石，不含或很少含有黏土成分，岩心渗透率伤害实验表明，岩心渗透率在注水过程中基本保持不变，水敏效应弱。油样与新酸和乏酸接触都可以生成稳定乳状物和酸渣，并且Fe3+的存会增加生成的酸渣量，Fe3+的浓度越高生成的酸渣量就越多，当加入1%的破乳剂FTP-18、0.5%的抗渣剂FTZG-01和2%的铁离子稳定剂（柠檬酸）时，酸渣的生成量大幅减少，抗渣有效。

     

    Abstract: In reservoir stimulation operations, incompatibility between acids and crude oil leads to the formation of stable emulsions and acid sludge which cause the reservoir formations to be damaged. In analyzing the saturated hydrocarbons, aromatic hydrocarbons, gums and asphaltene components in crude oils obtained from the SV reservoir formation in Block YD, Iran, X-ray and ESEM have been used to study the constituents and micro structure of the reservoir rocks. Laboratory experiments have been performed to determine the compatibility between oil and new acids/pantothenic acids under in-situ conditions. A compound additive for use in acidizing operations has been developed with acid sludge inhibitor, Fe stabilizer and demulsifier. The oil sample taken has a CⅡ of 2.19, indicating the high potential of acid sludge generation. The reservoir rocks, on the other hand, are mainly calcite, having no or little clay components. The permeability of the reservoir rocks remained almost unchanged during water injection. The contact of oil sample with new acids and pantothenic acids generated acid sludge and stable emulsions. The existence of Fe3+ in the oil sample increased the amount of acid sludge generated, and the higher the concentration of Fe3+, the more the acid sludge generated. Addition of 1% demulsifier FTP-18, 0.5% sludge inhibitor FTZG-01 and 2% citric acid (Fe stabilizer), the amount of acid sludge generated was greatly decreased.

     

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出版历程
  • 收稿日期:  2016-01-09
  • 刊出日期:  2016-05-31

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