In industrial uses, Welan Gum acts as a binder, emulsifier, and stabilizer, improving the formulation of coatings, adhesives, and other high-performance products. It is highly effective in creating stable suspensions and improving texture in various applications.
Biogum Welan Gum is used for :
Oil Drilling: Used as an additive in drilling fluids to increase viscosity, reduce fluid permeability, and enhance drilling efficiency.
Paper and Textile: Applied in paper coatings to improve printability and paper quality; also used in textile processing to improve wrinkle resistance.
Viscosity(% gum to 1%KCL Brookfield, LVT. 60 rpm, spring 3, 25℃): above 1500mPa.s
Oil Field Use Advantages:
In the oilfield sector, Welan Gum is an essential viscosifier in drilling fluids and hydraulic fracturing fluids. It helps improve the flow characteristics, ensuring effective solid transport and lubrication of equipment.
In the oilfield industry, It offers several advantages over traditional xanthan gum, especially in drilling fluid systems. Welan gum-based drilling fluids exhibit higher apparent viscosity and dynamic shear stress, making them more effective in maintaining wellbore stability and controlling fluid flow. One of the key benefits of Welan gum is its superior temperature resistance, which significantly expands the operational temperature range of biopolymer-based drilling fluids. This characteristic ensures the stability of the drilling fluid’s performance in deep wells under high temperature and pressure conditions, providing better flow behavior control in challenging environments.
In drilling mud formulations, Welan gum is used to maintain the viscosity of water-based drilling fluids and to control their rheological properties. It helps improve the flow characteristics of the drilling mud, enabling more efficient drilling operations, especially in deep and high-temperature wells. This improved performance makes it an essential component in oil drilling operations, ensuring that the mud remains stable under extreme conditions.
Welan gum also serves as a novel enhanced oil recovery agent (EOR), particularly in tertiary oil recovery. When formulated into an aqueous solution at an optimal concentration, It can be injected into the well to improve oil displacement within the reservoir. This process significantly boosts oil recovery rates, offering a more effective method for extracting oil from mature fields.
Additionally, It is used in a variety of other applications within the oilfield industry. It acts as a fluid loss additive in well cementing operations, improving the plasticity, suspension capacity, air content, and flow properties of cement slurries. This makes it particularly useful for enhancing the stability of wellbore walls in deep wells, where wellbore integrity is critical. Its exceptional high-temperature resistance ensures that it can maintain its properties during deep well cementing, offering reliable performance even in extreme conditions.
In summary, Welan gum is a highly versatile and effective polymer used in the oilfield industry for a wide range of applications, including drilling fluids, enhanced oil recovery, well cementing, and fracturing. Its ability to withstand high temperatures and improve fluid dynamics makes it a crucial component for optimizing oil extraction and wellbore stability in challenging environments.
Construction Industry:
Welan gum plays a crucial role in the construction industry, primarily enhancing the suspension ability of aggregates such as sand and gravel. It helps to maintain fluidity during pumping without increasing the plastic viscosity of the concrete mix. One of the key benefits of Welan gum in construction materials is its ability to significantly improve the water retention properties of the mixture, which reduces the risk of surface cracking. It also prevents water from being quickly absorbed by the cement particles, allowing for more complete hydration of the cement, which in turn supports the development of higher strength in the cured concrete.
In mortar applications, It ensures that the distribution of various components in the slurry is uniform and stable, resulting in a homogeneous mixture. This helps to prevent the settlement, layering, and bleeding (water separation) that often occurs in wet mixtures. When added to premixed mortar, Welan gum is used in very low quantities but can dramatically improve the performance of fresh mortar. It is one of the most significant additives that influence the workability and performance of mortar during construction.
The optimal performance of dry mix mortars, especially in specialty mortars such as modified mortars, heavily relies on the correct choice of Welan gum varieties, viscosity, particle size, and the appropriate dosage. For instance, in masonry and plaster mortars, Welan gum helps to maintain moisture content, preventing the separation of water and mortar that typically occurs after a short period of resting.
Welan gum is particularly indispensable in the production of dry powder mortars, where its water retention ability significantly enhances the quality of the final product. The effectiveness of Welan gum in this context is influenced by several factors, including the absorption rate of the substrate, the composition of the mortar, the required water content, the thickness of the applied layer, and the setting time of the binder materials.
In summary, Welan gum’s water retention capability is crucial for enhancing the performance of both standard and specialty mortars in the construction industry. It helps to maintain consistency, prevent layer separation, and improve the overall durability of construction materials.
