Characteristics of petroleum additives:
The unidirectional pressure sealing agent DF-1 for drilling fluid is a gray yellow powder product composed of various fibers, filler particles, additives processed through special processes, combined according to appropriate grading process. After the product is added in drilling, under the action of one-way pressure difference, it can have a good sealing effect on various leaks in the formation. It is easy to use, has good compatibility, does affect the mud performance.
The advantages of petroleum additives include: fast plugging speed good effect on pore micro crack leakage; It can significantly reduce the filtration loss of mud without affecting its rheological properties, has excellent temperature resistance; affected by electrolyte contamination; Solid phase invasion into the reservoir prevents damage, the zone can be relieved by perforation backflow.
The uses of petroleum additives include: unidirectional pressure sealing agent DF-1 for drilling fluid, which is suitable for the filtration of porous micro fractured formations in different situations during drilling. The good compatibility of this product is suitable for drilling completion fluids of different systems densities, achieving sealing of micro crack leakage reducing water loss. The recommended dosage for this product is 4%.
Usage:
To prevent leakage, it is recommended to use 1-2%.
The recommended dosage for sealing the pores micro cracks in the sand layer protecting the reservoir is 2-4%.
The recommended dosage for sealing severe leakage layers is 4-6%.
Petroleum product additives are widely used in gasoline, kerosene, diesel, lubricants, improving the combustion lubrication performance of oil, protecting machinery equipment, playing an indispensable role in rust prevention, oxidation resistance, ice resistance, anti-static. Food additives are a rapidly developing fine chemical industry that plays an important role in improving food nutrition (such as amino acids inorganic salts), preventing spoilage deterioration (antioxidants), improving food taste (monosodium glutamate), increasing flavor (fluffing agents), facilitating processing (defoamers).