Poly Anionic Cellulose (PAC) 1. PAC-HV (PAC-R) 2. PAC-LV (PAC-L) 3. CMC-HV 4. CMC-LV

Poly Anionic Cellulose (PAC)

Function of Poly Anionic Cellulose (PAC) in drilling fluidHigh substitution degree,good substitution evenness,high transparency,controllable viscosity and lower water loss Suitable for all kinds of water based slurry fresh water,sea water or saturated brine.Slurry with this product has good properties of lower water loss,restraining,and high temperature resistance Slurry with this product has rheological characteristics that it can restrain the separation and expansion of clay and shale in high salt medium,and consequently control the pollution of the well wall.Stabilizing the structure of soft soil and preventing well wall collapsing caused by water line rising Reducing solid drill bits piling up in slurry when drill goes through scarRestraining turbulence intensity and maintain the lowest pressure loss in circumfluence system Increasing slurry forming volume and reducing straining loss.Stabilizing slurry foam.PAC is not only an excellent slurry drilling fluid and well servicing fluid,but also a highly efficient pressing crack fluid.

CMC & PAC type and main function in drilling fluid

	Reduce filter loss	Thickening	Rock change control
PAC-HV	****	****	****
PAC-LV	**	**	***
CMC-HV	**	**	**
CMC-LV	**	*	*

Product type quality specificationOil drilling appropriation type PAC

Specification/Type	Sample Doss 0.57%		Sample Doss 0.86%		Sample Doss 1.14%
	Ap Fluid Loss(ml)	Yield Point(Pa)	Ap Fluid Loss(ml)	Yield Point (Pa)	Ap Fluid Loss (ml)	Yield Point (Pa)
LV-PAC	≤20	≥ 2.4	≤15	≥9.6	≤10	≥19.2
HV-PAC	≤25	≥0.5	≤15	≥0.5	≤10	≥0.5

Oil drilling appropriation type PAC.

Specification/Type	Viscosity			Lose Quantity
	Viscometer100r/min Liquor
	Distilled Water	4%Salt Solution	Salt Solution
LV-CMC	≤90	--	--	≤10
HV-CMC	≥30	≥30	≥30	≤10

Remark:Viscosity meter means Fana-35 viscosity meter or similar product

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Poly Anionic Cellulose (PAC)