Cement plug technology

1,cementing plug technology,method and construction steps of cementing plug,cement plug technology,cementing plug technology principle,cementing plug calculation and matters needing attention,the causes of the formation of downhole string enclosed,the purpose and usage of cementing plug,cement plug technology,cementing plug technology is will to casing for a certain amount of cement or a part of the hole,Satisfies its formation injection-production need new artificial bottom hole or meet process temporarily closed interval technology,cementing plug technology principle,when the dry cement mixed with just the right amount of water into the slurry,cement particles and water hydration reaction immediately,make the slurry water in calcium silicate as the main component of colloid,with ongoing hydration,colloid,And it gets thicker and thicker.
At the same time,new compounds formed in the colloid cement stone,gradually in the amorphous colloid began to present granular crystals,and gradually hardened,so that the cement slurry lost fluidity.

2.When the cement slurry begins to thicken and partially lose its plasticity,it is called initial setting;When the cement slurry loses its fluidity completely and can only bear a certain pressure,it is called final setting.

The cement slurry hardened into stone after the final setting is completed,the purpose and use of cementing plug,cementing plug is one of the common technology in underground operation.