Drilling fluid foam is too much of a headache! Defoamer can make a big difference!
The drilling mud method used in oil drilling is always accompanied by harmful foams, which seriously affect the progress of the project.
How is foam generated during drilling?
1. When all kinds of gases in the formation overflow, a large amount of foam will be generated in the mud, and the surfactant component in the mud has a stabilizing effect, so that the foam generated by the mud is circulated to the well again before it can be broken.
2. The decomposition of treatment agent by high temperature or the gas generated by fermentation will also lead to the formation of foam.
3. In practice, a large amount of air is drawn into the mud during mixing operations, resulting in the formation of foam.
Quality defoamer/antifoam should have the conditions
Foam generated in the drilling process is not handled in a timely manner, and serious foaming will affect the efficiency of the mud pump and reduce the pump pressure, which will have an impact on the entire drilling project. In serious cases, it may even cause poisoning, fire and other dangers to the site operators. The role of defoamer in mud is to eliminate the bubbles generated in the drilling fluid, to realize the effective improvement of drilling efficiency and safety, in terms of its physical and chemical properties should meet the following conditions:
1. Defoamer for drilling fluid should have lower surface tension than the foaming medium, insoluble in the foaming medium, and not affected by the foaming system capacity building and degradation.
2. Oil field defoamer is inert to the foaming system, no chemical reaction, no side effects on the final product, does not affect the performance and appearance of the product.
3. Antifoam is required to meet the special conditions of the drilling process, such as pH and temperature requirements.
4. Defoamer in the use of convenient operation, easy to handle, own good storage stability, long-term storage does not deteriorate, safe for humans, animals and the natural environment.
The main role of defoamers in drilling muds
At present, in the oil drilling process, it is common to use defoamer or defoamer and mechanical defoaming combined method for defoaming treatment. The role of defoamer in drilling mud is mainly reflected in the following aspects:
01
Quickly eliminate foam from mud:
Defoamer can quickly and effectively eliminate foam in the mud, thus avoiding drilling problems caused by excessive foam.
02
Enhance oil and gas separation efficiency:
Oil field defoamer can eliminate the thick foam during crude oil processing, thus enhancing the efficiency of oil and gas separation and ensuring that the purity of crude oil extraction is not affected.
03
Excellent chemical stability:
Antifoam can maintain stable performance in various complex chemical environments encountered in the drilling process, and continue to play the role of antifoam.
04
Good compatibility:
The defoamer will not react with other components in the mud, and will not affect other properties of the mud, and at the same time, it will not adversely affect the drilling equipment and the underground environment.
05
Foam inhibition effect lasts:
The use of defoamer for drilling fluid can be maintained in the foaming fluid for tens of hours without causing the solution to reappear to produce bubbles, thus ensuring the stability of the drilling process.
06
Strong permeability:
The defoamer can penetrate into every area of the foaming system, such as drilling fluid, to achieve a good effect of removing foam in a short period of time.
Defoamer Product Recommendation
In response to the foaming phenomenon in oilfield drilling process, the R&D team of RISE Chemical and the special product laboratory have conducted repeated experiments, and developed and produced a series of product lines including many kinds of antifoam agents for the oilfield industry according to the different application fields and usage requirements. It is especially suitable for maintaining antifoaming and foam inhibition performance under the conditions of high temperature, strong acid and alkali, high shear and high pressure. And it can be widely used in a wide range of temperature for foam elimination and inhibition of various harsh systems.
Click to learn more about oilfield defoamers
We will provide free samples for you
Experienced and excellent sales team + professional technical service team
Customized full-system foam solutions on demand
