Concentration, Brine Salinity and Temperature effects on Xanthan Gum Solutions Rheology

IF 5.8 4区工程技术 Q1 MECHANICS

Applied Rheology Pub Date : 2019-01-01 DOI:10.1515/arh-2019-0007

Mateus Ribeiro Veiga de Moura, R. Moreno

{"title":"Concentration, Brine Salinity and Temperature effects on Xanthan Gum Solutions Rheology","authors":"Mateus Ribeiro Veiga de Moura, R. Moreno","doi":"10.1515/arh-2019-0007","DOIUrl":null,"url":null,"abstract":"Abstract Xanthan gum is a biopolymer used in several different industries for a variety of applications. In the Petroleum Industry, xanthan gum has been applied in Enhanced Oil Recovery (EOR) methods for mobility control due to its Non-Newtonian rheological behavior, relative insensitivity to salinity and temperature compared to other conventional synthetic polymers, as well as its environmentally-friendly characteristics. As challenging reservoir conditions arise, candidate polymers should meet the screening factors for high salinity, high temperatures and heterogeneous reservoirs. This paper aims to evaluate the effects of temperature and monovalent salts on the rheological behavior of xanthan gum for Enhanced Oil Recovery purposes. We tested polymer solutions with brine salinities of 20,000/110,000/220,000 ppm of Sodium Chloride in a rheometer at temperatures of 23, 50, and 77°C. The results acquired showed that temperature plays a key role in viscosity and salinity protected the solution viscosity against negative thermal effects, unusually a turning point is observed where the increase in the monovalent salt content enhanced the polymeric solution viscosity. Such investigations coupled with a detailed discussion presented in the paper contribute to understand critical aspects of xanthan gum and its capability to provide basic requirements that fit desired screening factors for EOR.","PeriodicalId":50738,"journal":{"name":"Applied Rheology","volume":"29 1","pages":"69 - 79"},"PeriodicalIF":5.8000,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/arh-2019-0007","citationCount":"20","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Rheology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1515/arh-2019-0007","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}

引用次数: 20

Abstract

Abstract Xanthan gum is a biopolymer used in several different industries for a variety of applications. In the Petroleum Industry, xanthan gum has been applied in Enhanced Oil Recovery (EOR) methods for mobility control due to its Non-Newtonian rheological behavior, relative insensitivity to salinity and temperature compared to other conventional synthetic polymers, as well as its environmentally-friendly characteristics. As challenging reservoir conditions arise, candidate polymers should meet the screening factors for high salinity, high temperatures and heterogeneous reservoirs. This paper aims to evaluate the effects of temperature and monovalent salts on the rheological behavior of xanthan gum for Enhanced Oil Recovery purposes. We tested polymer solutions with brine salinities of 20,000/110,000/220,000 ppm of Sodium Chloride in a rheometer at temperatures of 23, 50, and 77°C. The results acquired showed that temperature plays a key role in viscosity and salinity protected the solution viscosity against negative thermal effects, unusually a turning point is observed where the increase in the monovalent salt content enhanced the polymeric solution viscosity. Such investigations coupled with a detailed discussion presented in the paper contribute to understand critical aspects of xanthan gum and its capability to provide basic requirements that fit desired screening factors for EOR.

查看原文本刊更多论文

浓度、盐水盐度和温度对黄原胶溶液流变学的影响

摘要黄原胶是一种生物聚合物，用于多种不同的行业，具有多种应用。在石油工业中，黄原胶由于其非牛顿流变行为、与其他传统合成聚合物相比对盐度和温度相对不敏感以及其环保特性，已被应用于提高采收率（EOR）方法中以控制流动性。随着具有挑战性的储层条件的出现，候选聚合物应满足高盐度、高温和非均质储层的筛选因素。本文旨在评估温度和单价盐对黄原胶流变行为的影响，以提高采收率。我们在流变仪中测试了盐水盐度为20000/11000/22000 ppm氯化钠的聚合物溶液，温度分别为23、50和77°C。所获得的结果表明，温度在粘度中起着关键作用，盐度保护溶液粘度免受负热效应的影响，异常地观察到一个转折点，其中单价盐含量的增加增强了聚合物溶液的粘度。这些研究与论文中提出的详细讨论相结合，有助于了解黄原胶的关键方面及其提供符合EOR所需筛选因素的基本要求的能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Rheology 物理-力学

CiteScore

3.00

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： Applied Rheology is a peer-reviewed, open access, electronic journal devoted to the publication in the field of applied rheology. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication.