good thermal stability carboxymethyl hydroxypropyl guar gum

good thermal stability carboxymethyl hydroxypropyl guar gum high viscosity sensitive to salts

Quick Detail:

Carboxymethyl guar gum is an anionic carboxymethyl hydroxypropyl guar modified from guar gum.

Description:

1. Carboxymethyl hydroxypropyl guar gum is applied as a fracturing fluid in the recovery of oil and gas. It is a self-hydrating polymer, so no external buffer system is required to help viscosity development.

2. Viscosity build over time is dependent on pH, shear rates, and temperature. This polymer is a self-hydrating polymer; therefore, no external buffer systems are required to control viscosity development. This polymer also hydrates well at 40° F and 80° F, therefore performing well in cold environments. It is sensitive to salts, but will easily develop adequate viscosity to be functional. This polymer is alcohol tolerant and will viscosify a 50% solution MeOH.

Applications:

1. Put Carboxymethyl guar gum into the water with rapid agitation, adding at the point of greatest agitation. Viscosity will develop without adjusting solution Ph value.

2. As a stimulation fluid, this polymer exhibits good thermal stability and can be cross-linked with a

number of transitional metal ions, including borates. Typically, if cross-linking the carboxyl group, an aluminum complexing agent is suggested. This polymer exhibits excellent carrying capacity to support sand or other proppants.

Specifications:

Competitive Advantage:

As a stimulation fluid, carboxymethyl hydroxypropyl guar gum has good thermal stability and can be cross-linked with a number of transitional metal ions. With its excellent carrying capacity, carboxymethyl hydroxypropyl guar gum can support sand or other prop-pants, and it is alcohol tolerant while it is kind of sensitive to salts.