ISSN:
1476-5535
Keywords:
Keywords: Sphingomonas paucimobilis GS-1 exopolysaccharide; rheological properties; biopolymer; drilling fluid; oil exploration
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Analysis of an exopolysaccharide of Sphingomonas paucimobilis GS-1 (EPS/GS-1) with respect to its rheological properties, cross-linking ability with chrome alum and performance test at 75 ± 5°C revealed its strong suspending ability, shear thinning property, and thixotrophic nature which are required to impart desirable rheology to drilling mud. The organism fulfilled all the specified requirements and its properties were superior to those of currently-used XC polymer (a xanthan product) for oil drilling applications. However, EPS/GS-1 was unstable in the presence of bentonite at 100 ± 5°C during performance tests, in contrast to XC polymer.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/sj.jim.2900737
