High temperatureresistant type oil field grade xanthan gum is produced by fermentation of carbonhydrate with Xanthomonas campestris, specially used in oil drilling and expoitation as mud additive. When in oil drilling application, it can improve the penetration rate, keep stability of pit shaft, raise efficiency of hole cleaning and rheological, reduce the pressure loss.
2.Specification::
Appearance-------------------------------------White to cream, free-flowing powder
Viscosity(1% solution in 1% KCL ) ---------------------1300~1800cps
pH (of 1% solution)---------------------------------------------6.0-8.0
Ash---------------------------------------------------------------max. 13%
Loss On Drying----------------------------------------------------------max.13
Particle size-------------------------------------------100% through 60 mesh
----------------------------------------min. 95% through 80 mesh
Temperature tolerance----------------------------------------stable at 105℃
Dispersibility-------------------------------------------------------0 lump
Rheology Sea Water Mud Tests: add 1.00 gram xanthan gum in 350ml sea water to
mixing solution, and static age for a minimum of 16 hours at 70F,using Fann 35
with a f-0.2 spring:
600rpm---------------------------------------------------------75min.
300rpm---------------------------------------------------------55min.
200rpm---------------------------------------------------------45min.
100rpm---------------------------------------------------------35min.
6rpm------------------------------------------------------------16min.
3rpm------------------------------------------------------------15min
Solubility---------------------------------------Hot or cool water
3.Executing Standard:
Conform with GB13886-92.Refer to SY 5093-92,API
4.Package:
25kgs in multiply paper bags or cardboard drums or cartons boxes.
5.Storage:
Sealed in original bags or drums and stored in cool and dry places.Shelf life at least 24 months will be achieved.
6.CAS-Number: 11138-66-2;Molecular Formula: (C35H49O29)n
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