Unique rheology of high acyl gellan gum and its potential applications in enhancement of petroleum production

  title={Unique rheology of high acyl gellan gum and its potential applications in enhancement of petroleum production},
  author={Changhong Gao},
  journal={Journal of Petroleum Exploration and Production Technology},
  • Changhong Gao
  • Published 2015
  • Journal of Petroleum Exploration and Production Technology
Gellan gum has been widely used as a food additive. This short communication investigates the rheological behavior of high acyl gellan gum. Experiments show that gellan gum achieves high viscosity in fresh water, but loses viscosity at high temperature. Besides, the viscosity of gellan gum is thermally reversible. The effects of monovalent ions and divalent ions on gellan gum are also tested. Sodium, potassium and calcium all have negative impacts on viscosity of gellan gum solutions. Compared… Expand

Figures and Tables from this paper

Impact of polymer addition, electrolyte, clay and antioxidant on rheological properties of polymer fluid at high temperature and high pressure
Nowadays, the application of polymer in petroleum industries due to its feasibility with enhancing hole cleaning, less formation damage characteristics of drilling fluids has been particularlyExpand
Rheological, textural and emulsifying properties of an exopolysaccharide produced by Mesorhizobium loti grown on a crude glycerol-based medium.
Results suggest that EPS-M816 is a good candidate for application in the food, cosmetics and pharmaceutical industries as a thickening, gelling, stabilizing and emulsifying agent. Expand
Modification of Branched Polyethyleneimine Using Mesquite Gum for Its Improved Hemocompatibility
The results allow us to propose that this copolymer be used in transfection, polymeric nanoparticles, and biomaterials due to its physicochemical and hemocompatibility properties. Expand
Unsaturated and thiolated derivatives of polysaccharides as functional matrixes for tissue engineering and pharmacology: A review.
This review examines investigations into the functionalization of polysaccharides by substituents containing multiple (CC) bonds and thiol (SH) groups that are prone to (co)polymerization in theExpand
Biosubstrates Obtained from Gellan Gum for Organic Light-Emitting Diodes
Nowadays, flexible organic electronics are under intense investigation for environmentally friendly and biocompatible applications. One of the main components of electronic devices is the substrate...
Contributing to Vision 2030 with a Saudi Polymer Research Center
The Saudi Arabian’s Vision 2030 presents a national transformation plan to boost the economic development through the establishment of several sustainable projects. The creation of powerful researchExpand


Gelation and gel properties of polysaccharides gellan gum and tamarind xyloglucan
Polysaccharide is used widely in food, cosmetic and pharmaceutical industries. The main use is to give appropriate texture to the products. Thus the polysaccharides used in such way are calledExpand
Rheological and thermal studies of gel-sol transition in gellan gum aqueous solutions
Abstract The rheological and thermal properties of sodium-form gellan gum solutions with and without sodium chloride, potassium chloride, calcium chloride and magnesium chloride were studied byExpand
Viscosity of partially hydrolyzed polyacrylamide under shearing and heat
  • Changhong Gao
  • Journal of Petroleum Exploration and Production Technology
  • 2013
Polymer flooding is the most successful chemical method to enhance oil recovery. This technique has achieved large-scale field application in China. Polymer flooding is also being tested in severalExpand
Gelation of gellan gum
Abstract The microbial polysaccharide, gellan gum, was studied in aqueous solution and in the gel state by osmometry, viscometry, light scattering, polarimetry and NMR and by measurements of gelExpand
Empirical correlations for viscosity of partially hydrolyzed Polyacrylamide
  • Changhong Gao
  • Chemistry
  • Journal of Petroleum Exploration and Production Technology
  • 2013
During water flooding operations, polymer can be added to injected water to improve sweep efficiency and retard viscous fingering. This technique, namely polymer flooding has achieved successfulExpand
Preparation and Evaluation of Soft Gellan Gum Gel Containing Paracetamol
Soft paracetamol gel was developed using gellan gum as a gelling agent and sodium citrate as a source of cation and possessed acceptable sensory characteristics when evaluated by human volunteers. Expand
Gel—sol transition in gellan gum solutions. II. DSC studies on the effects of salts
Abstract The thermal properties of sodium form gellan gum solutions with and without sodium chloride, potassium chloride, calcium chloride and magnesium chloride were studied by differential scanningExpand
Scientific research and field applications of polymer flooding in heavy oil recovery
The heavy oil resources worldwide are estimated at 3,396 billion barrels. With depletion of light oil, we have to face the technical and economical challenges of developing heavy oil fields. Due toExpand
Successful polymer flooding and surfactant-polymer flooding projects at Shengli Oilfield from 1992 to 2012
Shengli Oilfield, located in Northeast China, is one of the largest and oldest oilfields in China. The field production peaked in 1991 and the overall water cut has reached 95 % in 2012. The declineExpand
An Evaluation for Two Bacillus Strains in Improving Oil Recovery in Carbonate Reservoirs
Many successful field cases of microbial enhanced oil recovery (MEOR) method have been reported for sandstone reservoirs. The objective of this study is to investigate the potential of MEOR method inExpand