Essential details
MOQ:1000kgs
G.W:25 kg
Lead time:10 days after receipt the payment
N.W:24.8 kg
Shipping:Express Delivery, Ocean freight
Product Code:MHO-80ZX
Package Description:25kg compounded Paper-PE bag
Product Introduction
Xanthan gum, also known as yellow gum, xanthan gum, and xanthan polysaccharide, is a monospore polysaccharide produced by the fermentation of Pseudoxanthomonas. Due to its special macromolecular structure and colloidal properties, it has multiple functions and can be used as an emulsifier, stabilizer, gel thickener, wetting agent, film-forming agent, etc., and is widely used in various fields of the national economy. Xanthan gum is known as the "industrial MSG" and is currently the world's largest microbial polysaccharide with a wide range of uses.
1.Basic information.
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Chinese name: Xanthan gum Foreign name: Xanthan gum Alias: Xanthan gum; Xanthan gum; Yellow gum.
Chemical formula: C35H49O29, CAS number: 11138-66-2, EINECS number: 234-394-2.
Appearance: White or light yellow powder.
2.Structure.
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Xanthan gum, also known as yellow gum and xanthan gum, is an extracellular acidic heteropolysaccharide produced by fermentation of Xanthomonas. It is a polysaccharide polymer compound composed of D-glucose, D-mannose and D-glucuronic acid in a ratio of 2:2:1, with a relative molecular mass of more than 1 million. The secondary structure of xanthan gum is that the side chain is reversely wound around the main chain skeleton, and the rod-shaped double helix structure is maintained by hydrogen bonds.
3.Properties.
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Xanthan gum is a light yellow to white flowable powder with a slight odor. It is easily soluble in cold and hot water, the solution is neutral, resistant to freezing and thawing, and insoluble in ethanol. It disperses and emulsifies in water to become a stable hydrophilic viscous colloid.
4.Application of xanthan gum in the oil industry.
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A large market for xanthan gum is the oil industry. At present, the chemicals used in my country's oil fields are mainly polyacrylamide, CMC, modified starch, etc., which result in high drilling costs and low oil yields. Xanthan gum is much stronger than other polymers in viscosity, thickening, salt resistance, and pollution resistance. Especially in drilling in the ocean, beach, high-salinity layer and permafrost layer, xanthan gum is used in mud treatment, completion fluid and tertiary oil recovery. It has significant effects on accelerating drilling speed, preventing oil well collapse, protecting oil and gas fields, preventing blowouts, and greatly increasing oil recovery. As an ideal additive, this product has very good development prospects.
4.1. Drilling industry
Drilling fluid is the operating fluid used in the drilling process. It plays an important role in the drilling process. People often compare drilling fluid to "drilling blood". Its functions are: suspending and carrying cuttings, cleaning the bottom of the well; lubricating and cooling the drill bit, increasing the drill bit penetration, impacting the formation through the drill bit water hole, which is conducive to breaking the rock; forming mud cakes to increase the stability of the well wall; establishing a liquid column pressure that can balance the formation pressure to prevent complex accidents such as jamming, collapse, leakage, and spraying; when using turbodrills, it can be used as a liquid to transmit power. Xanthan gum is one of its main components. Its function is to increase viscosity and shear force and improve the suspension capacity of drilling fluid, which is indispensable for the drilling fluid to perform its functions.
4.2. Oil production industry
Among the various methods of improving oil recovery, polymer flooding occupies an important position. The role of polymers is to adjust the rheology of water injection, increase the viscosity of the driving fluid, and improve the sweep efficiency of water flooding. Reduce the permeability of the formation water phase so that water and oil can flow forward at a uniform speed. This type of polymer must have excellent viscosity-increasing properties under reservoir conditions, and must have a high viscosity retention rate under the action of temperature, pressure and salt. Since xanthan gum solution has good viscosity-increasing properties, rheological properties, water solubility, chemical stability, and strong mechanical resistance to degradation, it can be used as a displacement agent for oil field exploitation. Compared with general hydrolyzed polyacrylamide, it has stable physical and chemical properties, simple processing technology, good oil displacement effect, and low manufacturing cost. Because it has good resistance to shear degradation, it can flow selectively in the formation and has better oil displacement effect. It has gradually been used in oil field exploitation as a displacement agent to improve oil field recovery or a chemical profile control agent to improve the recovery effect. Physical simulation experiments further show that xanthan gum has the effect of improving oil recovery and is an excellent oil field exploitation displacement agent. After completing the primary and secondary recovery of oil by conventional methods, more than 50% of the oil remains in the rock and cannot be recovered. Based on economic and energy considerations, people pay more and more attention to improving the recovery rate of oil. The process of injecting water into oil strata is used for secondary oil production, but the relative fluidity of the injection fluid and viscous crude oil leaves a large amount of dead oil remaining in the well. If a polymer with thickening properties is added to the injection fluid, the fluidity of water can be reduced, thereby increasing the oil recovery rate. Many polymers can be used as flow control agents for oil recovery, among which xanthan gum is considered to have great application potential. Xanthan gum has many basic conditions necessary to improve oil recovery.
4.3. Xanthan gum is also used in fracturing fluid, mainly as a thickener for water-based fracturing fluid, and also has the function of reducing friction.
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