Application of foaming agent in foam cement cementing with hydrochloric acid:
The core reminder: the so-called hydrochloric acid cement is to stick or make a certain amount in the cement slurry, and evenly distributed in the cement slurry, so as to achieve the purpose of reducing the density of the cement slurry. Foam cement paste.
The so-called hydrochloric acid cement is used to stick or make a certain amount in the cement slurry, and evenly distributed in the cement slurry, thereby achieving the purpose of reducing the density of the cement slurry. There are generally two methods for preparing foam cement slurry: one is mechanical method, that is, a certain amount of foaming agent and foam stabilizer are added to the cement, and the mixed gas is formed into a stable foam cement by mechanical means; the second is chemical method, The dry cement is mixed with a certain amount of foaming agent. When the cement and water are mixed and stirred, the foaming agent reacts with certain chemical components in the cement to generate a gas to form a foamed cement. Foam cement cementing is a new cementing process that reduces the cement slurry density and reduces the liquid column pressure difference during cementing to solve the problem of well-leaked well cementing. It has some features not found in conventional cementing, low cement slurry density, cement stone strength, low permeability, anti-gas enthalpy, and tight bonding with casing and well wall.
In addition, there are a series of technologies such as hydrochloric acid mixing and unblocking technology.
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