Manufacturer & Supplier of Guar | Thickeners | Gums

Guar Gum derivatives in fracturing fluids

Wednesday, 19 May 2010 18:01 chemtotal

Fracturing fluids normally consist of many additives that serve two main purposes firstly to,Enhance fracture creation and proppant carrying capability and Secondly to Minimize formation damage. Viscosifiers, such as polymers and crosslinking agents, temperature stabilizers, pH control agents, and fluid loss control materials are among the additives that assist fracture creation. Formation damage is minimized by incorporating breakers, biocides, and surfactants. More appropriate gelling agents are linear polysaccharides, such as guar gum, cellulose, and their derivatives.

Fracturing Fluid Additives

Monday, 21 June 2010 20:20 chemtotal

In most low permeability reservoirs, fracture fluid loss and efficiency is controlled by the formation permeability. In high permeability formations, a fluid-loss additive must be added to the fracture fluid to reduce leak-off and improve fluid efficiency.

Checking Fluid Loss with Starch and Mica

Saturday, 07 July 2007 09:54 chemtotal

A fluid loss additive is described that consists of granular starch composition and fine particulate mica. An application comprises a fracturing
fluid containing this additive. A method of fracturing a subterranean formation penetrated by a borehole comprises injecting into the borehole and into contact with the formation, at a rate and pressure sufficient to fracture the formation, a fracturing fluid containing the additive in an amount sufficient to provide fluid loss control.

Xanthan gum

Tuesday, 06 May 2008 18:41 chemtotal

Xanthan is a natural polymer generated by the bacteria Xanthamonas campestris and produced commercially by a fermentation process. It is com-
posed of three monosaccharides – mannose, glucose and glucuronic acid, arranged in a highly branched structure with an estimated molecular weight of 5 million.

Functions of Hydrocolloids in cement mix

Saturday, 07 July 2007 09:54 chemtotal

Hydrocolloids or the gums are used in cement to act as water-retention agents, thickener and binder, suspending agent, lubricant and friction reducing agent. Hydrocolloids can also act as air entraining agents, reducing weight without sacrificing strength and eliminating need of other additives. All these end uses require prolonged retention of water in order to permit proper hydration and setting of the cement and consequent development of high bond strength.

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