Filtrate loss reducer is a chemical agent specifically designed to control the amount of filtrate loss in drilling fluids. The drilling fluid filtrate reducer produced by our company belongs to the polymer defiltate reducer, which has low filtration loss and can play a good protective role in the drilling process. There are room temperature defilators and high temperature and salt defilators. Ningjin County Jiahe energy-saving materials *** sales department:Jiao 13853470676
During the drilling process, the drilling fluid comes into contact with the underground rock formation, resulting in filtration loss. If the filtration loss is too large, it will cause the formation pressure to drop, which will affect the drilling construction. Therefore, the function of the filter loss reduction agent is to reduce the filtration loss of drilling fluid and ensure the smooth progress of drilling construction.
Second, the mechanism of action.
The mechanism of action of the filter loss reducer mainly involves adsorption, flocculation and bridging. Adsorption refers to the adsorption of filtrate depressant molecules on the surface of the rock layer through surface tension to form a protective film and reduce the permeability of the liquid. Flocculation refers to the formation of flocculent in the drilling fluid by the filter loss reducer, which reduces the resistance of liquid flow and reduces the amount of filtration loss. Bridging refers to the formation of a bridge between the surface of the rock layer and the drilling fluid by the molecules of the leaching agent, sealing the tiny gaps and holes to further reduce the amount of filtration loss.
3. Classification. According to its composition and mechanism of action, it can be divided into several categories, such as organic polymer filter loss reducer, inorganic filter loss reducer and composite filter loss reducer. Among them, the organic polymer leachate depressant has a high molecular weight and molecular weight distribution, which can significantly reduce the filtration loss of drilling fluidInorganic filtrate loss reducer mainly relies on adsorption and flocculation to reduce filtrateThe composite filter loss reducer has the characteristics of both and has a wider range of applications.
Fourth, the field of application.
Filtration loss reducer is widely used in oil, natural gas, coalbed methane and other drilling projects. In these projects, the drilling fluid acts as a circulating medium, and contact with the underground rock formation is unavoidable. Therefore, the use of filtrate loss reduction agent can effectively reduce the filtration loss of drilling fluid, keep the formation pressure stable, prevent the occurrence of formation collapse and other accidents, and improve the safety and efficiency of drilling construction.
Fifth, the future development trend.
With the continuous development of drilling technology, the requirements for filtration loss reducers are getting higher and higher. In the future, the filter loss reducer will develop in the direction of high efficiency, environmental protection and diversification. Specifically, future defilation agents need to have the advantages of higher filtration loss reduction effect, wider application range and environmental friendliness. At the same time, with the continuous development of new technologies such as artificial intelligence, new types of intelligent filtration loss reducers may appear in the future, which can automatically adjust their effects according to the specific conditions of drilling construction and improve the intelligent level of drilling construction.
In short, the defilator is an indispensable and important chemical agent in drilling engineering. In the future, with the continuous progress of technology and the continuous improvement of market demand, the filter loss reducer will be more widely used and developed.