high viscosity cmc powder for oil drilling

SODIUM CARBOXYMETHYL CELLULOSE(CMC) - LV MOISTURE, %: 10max PURITY, %: 80.0min D.S. %: 0.80min PH: 7.0-9.0

sodim carboxymethyl cellulose(cmc) - lv

 

Molecular Formula: C6H7O2(OH)2OCH2COONa

CAS NO. 9004-32-4

 H.S. Code: 39123100

 

“LONGFAR”CMC can be used as water-soluble gel for drilling fluids, and can from artesian well liquor.

It has good water-loss controlling ability; especially PAC is highly effective drop filter-loss agent. Even added at low quantity, it can control water loss at very high level, but does not affect slurry’s other characteristics.It can form high quality slurry cake which is strong and flexible.It has good temperature resistance and superior anti-salt character. Under certain salt density, it can remain good water-loss capability and certain rheology, so the viscosity in salt solution is the same as in water, which is specially suitable for sea misering and deep well.It effectively controls the rheology of slurry, with good non-Newtonian fluid performance.

Moreover, “LONGFAR”CMC can be used as well fixing liquor to prevent fluid entering terrane or crack, and also can be used as pressing liquor to control the loss of fluid into oil well structure.

 

 

 CMC-Na physical Chemistry Quality Index

ITEM	SPEC.
	LV-CMC	MV-CMC	HV-CMC
APPEARANCE	White or light yellw powder,freely flowable
MOISTURE	≤10
PURITY, %	≥80.0	≥85.0	≥95.0
D.S. %	≥0.80	≥0.65	≥0.8
PH	7.0-9.0	7.0-9.0	6.5-8.0

 

Performance in Mud

TYPE	ITEM		Spec.
			Distilled water	Salt water	Saturated Salt water
BASED SLUPPY	FLUID LOSE, ml		60±10	90±10	100±10
	Apparent viscosity,mpa·s		≤6	≤6	≤10
	ph		8.0±1.0	8.0±1.0	7.5±1.0
HV-CMC	Mud yield,m³/t		≥200	≥150	≥160
LV-CMC	FLUID LOSE10ml	Increase,g/l		≤7.0	≤10.0
		Apperent viscosity mpa·s		≤4.0	≤6.0
MV-CMC	Increase, g/l		6. 0	14. 0	3.5
	Apparent viscosity,mpa·s		≥15	≥15	≥15
	Fluid lose, ml		≤9	≤9	≤8

high viscosity cmc powder for oil drilling