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Mud additives

2020-11-21 H:41:39
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Carboxymethyl cellulose is mainly used in oil gas drilling, well digging other projects



1. Mud containing CMC can form thin hard filter cakes with low permeability on the wellbore, reducing water loss.

2. After adding CMC to the mud, the drilling rig can achieve low initial shear force, making it easy for the mud to release the gas trapped inside, while quickly discarding debris in the mud pit.

3. Drilling mud, like other suspended dispersions, has a certain lifespan, the addition of CMC can stabilize it extend its lifespan.

4. Mud containing CMC is rarely affected by mold, so there is no need to maintain a high pH value use preservatives.

5. Containing CMC as a drilling mud flushing fluid treatment agent, it can resist pollution various soluble salts.

6. Mud containing CMC has good stability can reduce water loss even at temperatures above 150 ℃.

石油助剂

CMC with high viscosity high degree of substitution is suitable for mud with lower density, while CMC with low viscosity high degree of substitution is suitable for mud with higher density. The selection of CMC should be determined based on different conditions such as mud type region, well depth, etc.

This product is a black dark brown powder that has been synthesized at high temperatures has excellent lubrication properties to prevent sticking. It can greatly improve drilling efficiency can be directly mixed with drilling fluid for use. The recommended dosage is 1-5%. For complex wells (sections), the dosage can be appropriately increased, the specific dosage depends on the performance of the drilling fluid the downhole situation.

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