Cellulose fibers are fibers made with ethers or esters of cellulose, which can be obtained from the bark, wood or leaves of plants, or from other plant-based material. The main applications of cellulose fibers are in the oilfield Industry as chemical filters, textile industry and as fiber-reinforcement composites etc. cellulose fibers in filtration applications can greatly improve filtration performance when used as a primary or remedial precoat in different ways like, Preventing fine particulate bleed-through, Precoating easily and rapidly and reducing soluble contamination, Improving the stability of the filter-aid cake to make it more resistant to pressure bumps and interruptions, Improving cake release and reducing cleaning requirements etc.
Hematite is mined as an important ore mineral of iron. It is electrically conductive. It is not only harder than pure iron, but also much more brittle. It is also available as a synthetic product. Hematite is a high-density weighting material. The hematite ore used as a weighting agent in drilling fluids has a mica-like crystal structure ground to a particle size suitable for use in drilling fluids. It is used to obtain mud weights in excess of 20.0 Pounds per gallon (ppg) in water based drilling fluids, 19.0 ppg in oil based drilling fluids, or any time that exceptional control is required of solids percentage for theology control. Higher density Hematite occupies less space than an equal mass of Barite. This allows more room of water, reducing the interaction between solids.