Drilling fluid rheology modifiers

The main role of Drilling fluid rheology modifiers

1. thickening and rheological adjustment: organic bentonite can form a gel in all kinds of organic solvents, oils, liquid resins, effectively regulating the viscosity of the drilling fluid and the cutting force, to improve its flow properties.

2. Stabilizing effect: organic bentonite in the drilling fluid can form a stable colloidal system to prevent solid-phase particles from settling and aggregation, organic bentonite can enhance the filtration control ability of the drilling fluid, reduce the erosion of the well wall and the amount of filtration loss, so as to maintain the stability of the well wall.

Maintain the stability of the drilling fluid.

3. lubrication and drag reduction: organic bentonite can reduce the frictional resistance between the drilling tools and the well wall, can lubricate the drill bit, reduce the wear of the drill bit, improve drilling yield.

4.Protection of the well wall: organic bentonite formed by the mud can penetrate into the cracks and pores of the well wall rock, forming a protective film that can inhibit the hydration and expansion of mud shale, preventing the collapse of the well wall.

• Good thickening: organic clay bentonite can significantly increase the viscosity of the drilling fluid, enhance the suspension capacity of the drilling fluid and sand-carrying ability.
• Excellent thixotropy: organic bentonite can form a thixotropic gel in the drilling fluid, improving the fluidity and stability of the drilling fluid.
• Stability at high temperature and high pressure: organic bentonite can maintain stable performance at high temperature, and still maintain stable drilling operations at high temperature and high pressure.

Organoclay bentonite as a rheology modifier for drilling fluid has an important role in drilling engineering.

The effect of the use of organophilic clay bentonite depends on its properties, including the degree of organicization, particle size, cation type and so on.

It can not only regulate the rheological properties of the drilling fluid, improve drilling efficiency, but also protect the well wall, prevent collapse, ensure the safety of drilling operations and smooth progress.

Therefore, the use of organiclay bentonite depends on its properties, including the degree of organicization, particle size, cation type and so on

 Organophilic Clay is a wet process improved viscosifier and gelling agent.

It is an easy dispersing, rapid yielding organoclay that exhibits high performance efficiency in diesel oil, crude oil, Low BTEX base oil, mineral oil and synthetic containing base fluid formulation. It is stable and has good suspension and thixotropic features. It can also be used in adhesives and sealant.

Properties

Composition                      Organically modified bentonite clay

                 Appearance                       Off white to tan finely divided powder,

                 Moisture content (105℃,2hr)            ≤3.5%

                 Particle size (% Thru150Mesh:95min)    ≥95%

                 LoI:                                  35-39%

Advantages

• Disperses easily in less time with less shear
• High performance viscosifier for low aromatic, all mineral oil and synthetic base fluids
• Cost- effectively builds viscosity and yield point
• Aids control of fluid loss to the formation
• Increases emulsion stability
• Suspends weighting materials and other solids
• Confers stability at the pressure and temperature 10⁸Pa and 230℃

Application

                     Base oil:

• Diesel Oils
• Crude Oils
• Mineral Oils
• Synthetic Oil
• Alpha Olefins
• Low BTEX base oil