SAPP - Sodium Acid Pyrophosphate

SAPP - Sodium Acid Pyrophosphate

SAPP Sodium Acid Pyrophosphate

SAPP Sodium Acid Pyrophosphate


SAPP Sodium Acid Pyrophosphate – source your SAPP from TCI China. SAPP is also known as Disodium pyrophosphate. Its chemical formula is (Na2H2P2O7). It is widely used as thinner in oil well drilling muds and even as an industrial cleaner. Its key advantages are:
• Aids in the removal of calcium and reduces pH in cement contaminated fluids.
• At low concentration levels, it is fast-acting and effective.

SAPP assists and promotes the following functions and applications:
• It decreases the viscosity and gel strengths in freshwater drilling fluids.
• Actively thins out reactive clays.
• Aids break up clay particles and sediments, which enables them to be extracted during oil well development.
• Used in the chemical clean up of fluids which have been contaminated by cement.

SAPP is used as a deflocculant (thinner) in freshwater mud systems. It is often used to break up mud rings when water drilling and is also used to thin out cement before cementing casing.
In cementing applications, SAPP is used for two primary purposes:

1. Contaminated drilling mud can result in fluid loss, thickening time, and viscosity. SAPP is used to disperse and displace drilling muds to avoid mud being affected by cement contamination.

2. Solids carrying fluid or drilling mud must be removed from the perforation channels and the rock face to allow a good cement bond and complete fill-up of the voids. Incorporating SAPP into the spacer will help remove residual muds and provide a cleaner surface to which the cement can bond.

Preparation & Procedures

Those working with Sodium Acid Pyrophosphate (SAPP) should wear appropriate Personal Protective Equipment, including dust masks and eye protection. It is advisable to wear PPE while mixing all powdered products.
Avoid skin contact and do not inhale dust or allow contact with eyes. Do not ingest.

In standard water drilling operations, the usual procedure to apply SAPP is to add one viscosity cup directly into the drill pipe at each connection. In areas with very reactive clays, increased treatments will be required. When using to thin the mud before cementing, mix as needed to the circulating mud system.

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