OS RHEO GUM PLUS - Modified High Temperature Polysaccharide Gum

 

 

Viscosity

Two of the primary functions of any drilling fluid are hole cleaning and cuttings suspension. The introduction of shear-thinning polysaccharide gums was one of the most important technological innovations in the development of water-based muds. Using the appropriate quality gums for the right application allows proper engineering of drilling fluid, cement and spacer properties to ensure optimal flow rates and minimum ECDs for drilling and displacements. OS RHEO GUM PLUS gum is much more thermally stable and calcium tolerant and has many other benefits compared to xanthans and normal welan. Choose the right gum for the right application.

 

Product Information 

OS RHEO GUM PLUS is a premium, shear-thinning, modified polysaccharide gum biopolymer.

OS RHEO GUM PLUS is the highest performing biopolymer currently available to the oilfield for drilling, completions, gravel packing and cementing.

OS RHEO GUM PLUS is stable to temperatures above 325°F (163°C).

 

Typical Physical Properties 

Appearance   -   Off-white powder.               

pH of 1% Solution   -   7.0 – 9.0

Loss on Drying   -   13% max.

Particle Size   -   ≥ 95% pass 80m mesh

                                          

Rheology;                               

 

ITEMS

TEST CONDITIONS

OS RHEO GUM PLUS

600rpm

300rpm

200rpm

100rpm

6rpm

3rpm

Thermal Resistance

1ppb in synthetic seawater

25, Fann 0.2

140

120

109

98

70

66

85 1 hour HR, Fann 0.2

138

119

108

98

69.5

66

150 1 hour HR, Fann 0.2

136

118

106

96

69

65

163 1 hour HR, Fann 0.2

136

118

106

96

68

64

LSRV

0.28%0.3rpm/66#)

39487cP

Brookfield

 

 

 

Advantages 

OS RHEO GUM PLUS has excellent stability and viscosity retention at temperatures up to 163°C.

OS RHEO GUM PLUS is calcium ion tolerant even at high pH levels.

Application  

OS RHEO GUM PLUS biopolymer is used as a shear-thinning viscosifier and suspending agent for water base mud systems when temperatures and/or calcium ion concentrations exceed the range for xanthan and welan products.

OS RHEO GUM PLUS Is ideal for use in cement spacers when calcium and pH tolerance are essential for ensuring proper separation and displacement.

OS RHEO GUM PLUS can also be use in cements as an anti-settling additive and to control free water.

Normal concentrations are 0.5 – 2.0 ppb (1.5 – 6.0 kg/m3)

 

OS RHEO GUM PLUS is also used in workover or completion operations either on its own or in combination with HEC to build up viscous pills with high suspension properties. OS RHEO GUM PLUS is highly soluble in HCl.

 

Packaging

OS RHEO GUM PLUS is packaged in 25 kg sacks.

 

 

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