• CMC for water well drilling
CMC for water well drilling
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CMC for water well drilling

Carboxymethyl cellulose (CMC) primarily functions as a filter cake reducer, thickener, and protective agent in water drilling. Its specific functions include: Filter cake reducer: CMC molecules form a dense filter cake on the wellbore, reducing filtrate permeation into the formation and thus lowering filtrate loss.
  • Commodity name: CMC for water well drilling

Classification

Carboxymethyl cellulose (CMC) primarily functions as a filter cake reducer, thickener, and protective agent in water drilling. Its specific functions include:

Filter cake reducer: CMC molecules form a dense filter cake on the wellbore, reducing filtrate permeation into the formation and thus lowering filtrate loss.

Thickener: High-viscosity CMC significantly increases drilling fluid viscosity, improving proppant carrying capacity and wellbore stability.

Protective agent: CMC adsorbs onto the surface of clay particles, forming a stable colloidal structure that prevents particle aggregation and maintains drilling fluid stability.

Other properties: Salt resistance: Suitable for brine drilling fluids, exhibiting good stability and effectively reducing fluid loss even at temperatures exceeding 150°C.

pH adaptability: Performs best in slightly alkaline environments (pH 8-10), requiring no preservatives.

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CMC-Mining Grade

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CMC-Paper making Grade

CMC(sodium carboxymethyl cellulose) displays many excellent performance in paper-making technology. it is higher valued by the majority of paper engineers and is widely used in the production of paper and paperboard, such as paper and paperboard coating process, coating rheology modifier, water - retention agent, film-forming agent, auxiliary adhesives, wet end retention enhancers and surface sizing agents, grinding aids, filler modifier and the flocculating agent which used in waste water treatment etc. We have different paper making grades of CMC to meet the different customers’ requirements.

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