Oil Drilling Grade Polyanionic Cellulose/Carboxymethyl Cellulose

Oil Drilling Grade PAC(Polyanionic Cellulose)/CMC (Carboxymethyl Cellulose)


PAC and CMC are used in oil drilling fluids and completion fluids. In drilling fluids, it works as viscosifier, flowing controller and filtration reducer, with strong suspending capability, high ability of carrying crumbs, and the function of cleaning drilling crumbs, stabilizing of well wall, preventing the mud from flowing away, protecting drilling bit and reducing the thickness of mud cake, but while in the completion fluids, it functions to control the fluid viscosity, suspend the heavy objects, bring the filler and avoid the fluids loss. It also can replace guar gum in fracturing fluids.

Our PAC (oil drilling grade) and CMC are advantageous because of their: small usage, high yield; good salt tolerance, anti-bacterial property and convenient to use; the fluid loss reduction and the viscosity improvement; flowing control and strong suspending capability; environmental friendly, nontoxic, harmless and odorless; and good liquidity, convenient to construction.


Technical   Specifications of PAC for Drilling Fluid

TYPE

Apparent   Viscosity (mPa•s)

Filtration (ml)

pH

(D.S.)
   Degree of Substitution

Loss on Drying   (%)

Purity (%)

Min.

Max.

Min.

Max.

PAC-LV1#

/

30

≤16

6.5-9.0

0.90

/

≤9

≥65

PAC-LV2#

/

30

≤14

6.5-9.0

0.90

/

≤9

≥75

PAC-LV

/

30

≤13

6.5-9.0

0.90

/

≤9

≥85

PAC-LVS1

/

40

≤12

6.5-9.0

0.90

/

≤9

≥95

PAC-LVG#
   (Granule)

/

40

≤12

6.5-9.0

0.90

/

≤9

≥95

PAC-R#

35

/

≤23

6.5-9.0

0.90

/

≤9

≥75

PAC-HV#

50

/

≤23

6.5-9.0

0.90

/

≤9

≥85

PAC-HV1#

50

/

≤20

6.5-9.0

0.90

/

≤9

≥95

PAC-HVG#
   (Granule)

60

/

≤18

6.5-9.0

0.90

/

≤9

≥95



Technical Specifications of HV-CMC, LV-CMC

Specifications

Performance Test

Items

Indicators

In distilled water

In salt water

In saturated water


   Base Mud

Filtration (ml)

60±10

90±10

100±10

Apparent Viscosity (CPS)

≤6

≤6

≤10

pH

8.0 ± 1.0

8.0 ± 1.0

7.5 ± 1.0

HV-CMC

Yield of 15CPS (m3/t)

≥160

≥130

≥140

LV-CMC

Filtration: 10ml/h

Addition (g/l)

/

≤7.0

≤10.0

Apparent Viscosity (CPS)

/

≤4

≤6

Remarks

HV-CMC OCMA DFCP-7; LV-CMC OCMA DFCP-2.
   The performance test of HV-CMC as per OCMA DFCP-7 methods.
   The performance test of LV-CMC as per OCMA DFCP-2 methods.



Technical   Specifications of CMC-HVT, CMC-LVT

Type

600r/min   Viscometer dial reading at 600r/min.

Filtration (ml)

In distilled   water

In 40g/L salt   water

In saturated   salt water

CMC-HVT#

≥30

≥30

≥30

≤10

CMC-LVT#

≤90

/

/

≤10

Remarks

API13A Conforms   to API Spec. 13A test methods



Technical   Specifications of CMC for Fracturing Fluid

Type

Viscosity   (mPa.s)

pH

(D.S.)
   Degree of Substitution

Loss on Drying   (%)

Purity(%)

Min.

Max.

Concentration

Min.

Max.

CMC9-5000#

5000

6000

1%

6.5-9.0

0.90

/

≤10.0

≥99

CMC9-6000#

6000

7000

1%

6.5-9.0

0.90

/

≤10.0

≥99

CMC9-7000#

7000

8000

1%

6.5-9.0

0.90

/

≤10.0

≥99