Aerated drilling fluid is formed by injecting air or nitrogen into conventional drilling fluids. Aerated drilling fluids are generally composed of clear water, tackifiers, fluid loss additives, plugging agents, and clay stabilizers. They are used in oilfield aerated drilling operations. To a very important role. Due to the rich surface active substances in drilling fluid and the large amount of air involved in drilling operations, it is easy to produce a large amount of foam. If these foams are not controlled, it is likely to cause blowout. The aerated drilling fluid defoamer can quickly eliminate the foam in the drilling fluid and inhibit the second generation of foam, which can make the engineering operation go on smoothly.
(Picture: Application scene of aerated drilling fluid defoamer)
Reasons for foaming in aerated drilling:
1. Various gases of formation gas diffuse into the drilling fluid during the drilling process, which will produce a lot of foam;
2. Too rich surface active substances in drilling fluid can easily cause foam;
3. Various gases are generated when the treatment agent is decomposed/fermented at high temperature, which can also cause foam;
4. Crude oil itself is an easy foaming system, and the air drawn in due to agitation produces foam;
5. When air is involved in drilling operations, foam will also be generated.
What are the hazards of aerated drilling fluid foam:
1. Decrease of drilling fluid density, resulting in poor fluidity
2. Decreased lubrication performance, resulting in a decrease in the efficiency of cooling the drill bit
3. If the overflowing foam is not treated in time, it will also cause pollution to the surrounding environment
4. It seriously affected the working efficiency of the mud pump, resulting in an increase in labor costs and energy loss.
In view of the easy foaming characteristics of aerated drilling fluids, the Nanhui defoamer manufacturer has developed a targeted oilfield defoamer designed by a professional defoamer engineer to configure it and add it to the drilling fluid. It can be used very well. Control the foam,
(Picture: Sample of defoamer for aerated drilling fluid)
Nanhui drilling fluid defoamer has the following characteristics:
1. High defoaming active ingredients, small addition amount, obvious effect;
2. Samples of defoamer for oilfield industry can be provided free of charge.
3. It can be well dispersed in the slurry and inhibit the stubborn foam caused by other additives in the slurry.
4. Under the conditions of high temperature, strong acid and alkali, high shearing force and high pressure, it can keep defoaming and suppressing foam continuously.
5. Nanhui factory direct sales, cost-effective, one-to-one technical specialists to provide solutions.
