Flow and thixotropy of non-contaminating oil drilling fluids formulated with bentonite and sodium carboxymethyl cellulose

被引：78

作者：

Dolz, M. ^{[1
]}

Jimenez, J.

Jesus Hernandez, M.

Delegido, J.

Casanovas, A.

机构：

[1] Univ Valencia, Grp Reol, Dept Fis Tierra & Termodinam, E-46100 Burjassot, Spain

[2] Unipaz, Escuela Ciencias, Barrancabermeja, Colombia

来源：

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2007年 / 57卷 / 3-4期

关键词：

drilling mud; bentonite; carboxymethyl cellulose; thixotropy; rheology;

D O I：

10.1016/j.petrol.2006.10.008

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A study has been made of low-contaminating oil drilling mud in water base, composed of bentonite, at concentrations in the range of 6-12% (w/w), and sodium carboxymethyl cellulose at two different concentrations. Flow analysis yielded an empirical formula indicating shear stress as a function of the formulation concentrations of bentonite and sodium carboxymethyl cellulose, stirring time and shear rate. To study the thixotropy of the different formulations the cycles' method has been used. Calculations were made of the thixotropic areas, obtaining a semi-empirical equation for these areas. The results are analyzed on the base of relative thixotropic area and total relative thixotropy - the latter being defined by the authors in this study. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：294 / 302

页数：9

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