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首页> 外文会议>Journal of Central South University of Technology >Viscoelastic rheological property of different types of polymer solutions for enhanced oil recovery
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Viscoelastic rheological property of different types of polymer solutions for enhanced oil recovery

机译：不同类型聚合物溶液的粘弹性流变特性可提高采油率

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摘要

The capability of hydrophobic association polymer (HAPAM) to displace oil is different from that of hydrolyzed polyaerylamide (HPAM) because they have different rheological properties. The viscoelasticity of five polymers was measured using Physica MCR301 rheometer and was compared. The five polymers include three HAPAMs with relative molecular mass of 1 248×104 (TypeⅠ), 750×104 (TypeⅡ), and 571×104 (Type Ⅲ) separately and two HPAMs with relative molecular mass of 1 200×104 and 3 800×104 respectively. The experiment results indicate that the viscoelasticity of HAPAM is better than that of HPAM. The storage modulus G' and the loss modulus G" for HAPAM solutions are also larger than those for HPAM. Comparing the rheologieal curves of different HAPAM types, it is found that the viscosity of type Ⅱ and type Ⅲ is almost same at different shear rates while the viscosity of type Ⅰ is the lower than that of Types Ⅱ and Ⅲ. The storage modulus G' and the loss modulus G" for three types of HAPAM were measured in low oscillation frequency range, and the results show that G' is greater than G" for all three different types of HAPAM, but their loss modulus is almost same, and the G' is in the order of type Ⅱ＞type Ⅲ＞type Ⅰ. In addition, the G' and G" increase with aging time for all three HAPAM solutions were stayed at different days. The viscoelasticity of type Ⅰ reaches the highest value when aging time is 9 d at 45 ℃ but it is 7 d for type Ⅱ and type Ⅲ The different viscoelasticity properties can be attributed to self-organization supermolecule networks which is formed by hydrophobic association of HAPAM molecular and molecular chain entanglement.
机译：疏水缔合聚合物（HAPAM）取代油的能力与水解聚丙烯酰胺（HPAM）的能力不同，因为它们具有不同的流变性。使用Physica MCR301流变仪测量了五种聚合物的粘弹性，并进行了比较。这五种聚合物分别包括三种相对分子质量分别为1 248×104（Ⅰ型），750×104（Ⅱ类）和571×104（Ⅲ型）的HAPAM和两种相对分子质量为1200×104和3800的HPAM。 ×104。实验结果表明，HAPAM的粘弹性优于HPAM。 HAPAM溶液的储能模量G'和损耗模量G”也比HPAM大。比较不同类型的HAPAM的流变曲线，发现Ⅱ和Ⅲ的粘度在不同的剪切速率下几乎相同。而Ⅰ型的粘度低于Ⅱ，Ⅲ型。在低振荡频率范围内，测量了三种类型的HAPAM的储能模量G'和损耗模量G”。三种不同类型的HAPAM的G'均大于G“，但其损耗模数几乎相同，并且G'依次为Ⅱ型＞Ⅲ型＞Ⅰ型。此外，G'和G”随老化时间的增加而增加。所有这三种HAPAM解决方案均停留在不同的日期。在45℃时效时间为9 d时Ⅰ型的粘弹性达到最大值，而对于Ⅱ型和Ⅲ型则达到7 d。不同的粘弹性可以归因于HAPAM的疏水缔合形成的自组织超分子网络。分子和分子链的缠结。

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  • 来源
  • 会议地点 Changsha(CN)
  • 作者

    WANG Juan; rnWANG Yan;

  • 作者单位

    MENG Ling-wei(孟令伟)@Enhanced Oil Recovery Research Center, China University of Petroleum, Qingdao 266555, China--KANG Wan-li(康万利)@Enhanced Oil Recovery Research Center, China University of Petroleum, Qingdao 266555, China--ZHOU Yang(周阳)@Enhanced Oil Recovery Research Center, China University of Petroleum, Qingdao 266555, China--WANG Zhi-wei(王志伟)@Enhanced Oil Recovery Research Center, China University of Petroleum, Qingdao 266555, China--LIU Shu-ren(刘述忍)@Enhanced Oil Recovery Research Center, China University of Petroleum, Qingdao 266555, China--BAI Bao-jun(白宝君)@Missouri University of Science and Technology, Rolla, MO 65401, USA--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 流体力学;
  • 关键词

    hydrophohic association polymer; rheology; storage modulus; loss modulus; self-organization; aggregate;

    机译：疏水缔合聚合物；流变学；储能模量；损耗模量；自组织；聚集;

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