Suspending Agent for Organophilic Clay
The current invention relates to the production and application of an organophilic clay as a suspending agent. Organophilic clays with a ME ratio ranging from 20 to sixty are favored. The best ME ratio is determined by the type of clay, the cationic quaternary compound, and the oleaginous liquid used to activate the organophilic clay. The higher the suspending efficiency, the lower the ME ratio.
Organophilic clay CP-982
The CP-982 organophilic clay is a suspended solid that can improve the stability of drilling muds at both low and high doses. This is owing to its ability to build a three-dimensional network of flocculated particles around droplets in the exterior phase. When the amount of CP-982 organophilic clay is increased, the mud’s suspension qualities improve. This feature is obtained by a mechanism known as double-layer repulsion.
This material serves as a viscosifier and gelling agent in gasoil-based drilling muds and inversion emulsions. It improves drilling mud carrying capacity, aids in the elimination of drill cuttings in high-temperature wells, and stimulates the creation of filtercake. NOVA synthetic-base or oil-based systems can also benefit from the addition of CP-982 organophilic clay.
Attapulgite
Attapulgite organophilic clay is a high-viscosity gelling agent made from the Chinese mineral attapulgite. This material offers numerous performance advantages in a number of liquid systems. The attapulgite compound is a powerful thixotropic thickening and syneresis inhibitor. Aside from its usage as a thickener, attapulgite is also an excellent suspension agent for a variety of liquids.
As an organophilic clay suspension, attapulgite can be employed. It is typically made up of one component attapulgite and nine parts water. The clay is then treated with a solution of dimethyl dihydrogenated tallow ammonium chloride (DMDT), an ammonium ion that is 80 percent active in 72 percent isopropanol and 28 percent water.
Organophilic clays can be used to thicken and suspend organic liquids. Organophilic clays with a ME ratio of twenty to sixty are favored. The ME ratio is affected by the clay or cationic quaternary chemical used to produce the clay. In general, organophilic clays with a high ME ratio suspend liquids better than those with a low ME ratio.
Organoclays bentonite from Camp Shinning
Organoclay is the organic bentonite suspended in paints. This is due to the fact that the color of organic bentonite powder is determined by the raw bentonite ore. It costs between $1.7 and $3.2 per kilogram. Organophilic clay suspending agent is extremely stable and can be used for extended periods of time without settling.
Organophilic clays with a ME ratio of 20 to roughly 60 are favored. The best ME ratio depends on the type of clay used to make the organophilic clay and the composition of the oleaginous liquid floating in the clay. The higher the suspending efficiency, the smaller the ME ratio. If the oleaginous liquid is too diluted with the organoclay, the oleaginous liquid’s suspension effectiveness falls.
Particulate gellant preparation methods
The process of creating a particulate gellant containing organophilic clay is complicated, with the amount of alcohol and water required varied depending on the approach. A particulate gellant should ideally be composed of 58 percent to 80 percent organophilic clay and 3 percent to 10% alcohol. Alternatively, the proportion of water should be between 15% and 40%.
An organophilic clay gellant is made by combining smectite clay with an organic cationic component. This process is employed to make the slurry more dispersible, allowing for the incorporation of more organophilic clay. Deflocculants such as lignite salts, lignosulfonate salts, and tannins may also be used in this approach.
The effect of VG69 organophilic clay content on gasoil-based drilling muds
Organophilic clays have a variety of qualities, including low wettability and low viscosity. Because of their low electrical interaction, OBDFs lack the viscosity of water-based drilling fluids. As a result, high-pressure drilling necessitates a highly stable suspension of these clays.
The critical shear stress, or stress yield, model was used to assess the impact of CP-982 on the viscoelasticity of gasoil-based drilling muds. This criterion was used to simulate the performance of oil-based drilling fluids. When the storage and loss moduli are equal, a critical shear stress is reached.