Sodium Silicate Mud

Definition - What does Sodium Silicate Mud mean?

Sodium Silicate Mud is a water-based drilling fluid which contains sodium silicate polymeric ions. It is mud (or a drilling fluid) that has saltwater or water as its major liquid component. The drilling fluid can either contain polymeric ions of sodium silicate or potassium silicate. This drilling fluid is used as a wetting agent in the external phase of drilling operations. Due to its composition, sodium silicate water-based mud is less prone to affect the environment throughout the offshore drilling operations.

Petropedia explains Sodium Silicate Mud

There are three types of drilling fluids which are used to carry out drilling operations in an oil well, i.e., water based, air based and oil based drilling fluids. Water-based drilling fluid is the most common mud system that is used in drilling operations. Sodium Silicate Mud is a water-based drilling fluid (drilling mud). It is less expensive and easy to maintain as compared to oil mud system. However, water base mud is known to cause change to the mechanical properties of a rock after entering the formation. If the water mud modifies the properties of the rock, it may lead to unsteadiness of the borehole and cause permanent damage to the formation. A lot of water is required in composing water-based drilling fluids to conduct hydraulic fracturing as these are injected with high pressure into a wellbore.

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