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.) | 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# | / | 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#
| 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 | |||
| 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. | ||||
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.) | 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 |