There is wide usages of CMC Carboxy methylcellulose for Drilling crude or purified it is used in drilling sludge as a colloid thickener. Carboxymethyl cellulose is applied when removing the drill from the hole to avoid sediments. CMC carboxymethyl cellulose is also used as a thickening agent, for example, in the oil-drilling industry as an ingredient of drilling mud, where it acts as a viscosity modifier and water retention agent.In addition usages of CMC carboxymethyl cellulose for drilling so so benefical bot production process and result .Two kind of CMC called HV and LV provides to pump drilling mud easily.