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China Feicheng Yutian Chemical-Hydroxy Ethyl Cellulose Manufacturer
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Self-owned Factory
5,000㎡
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Global Customers
500+
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Professional manufacturer
15 years
2022-10-26
News
Polyanionic cellulose (PAC)
PAC, divided into high viscosity (HV) and low viscosity (LV) two kinds, - can be used as thickener, rheological control agent, adhesive, stabilizer, protective colloid, suspension agent and water retention agent; In the petroleum exploitation industry, PAC is a good drilling mud treatment agent and preparation of completion fluid material, high slurry rate, salt and calcium resistance. PAC is an excellent fluid loss reducer for fresh water, sea water and saturated salt-water mud, and has excellent viscosity lifting and high temperature resistance (150 ° C). It is suitable for the preparation of fresh water, sea water and saturated brine completion fluids, and can be prepared into a variety of densities under calcium chloride aggravation, and can make the completion fluid has a certain viscosity and low filtration loss. The high viscosity and low viscosity PAC produced by our company meet the European OCMA standard and the American API standard.
Specifications: High viscosity (HV) and Low viscosity (LV)
Grade: General and Excellent
Polyanionic cellulose (PAC) product model, quality index
Polyanionic cellulose (PAC) product model, quality index
|
Index & Type |
PAC-HV-1 |
PAC-HV-2 |
PAC-LV-1 |
PAC-LV-2 |
|
Degree of substitution |
≥0.85 |
≥0.9 |
≥0.95 |
≥0.95 |
|
Viscosity (2% solution,NDJ-79 viscometer,25℃) |
≥1600mPa.s |
≥1600mPa.s |
50~100mPa.s |
80~100mPa.s |
|
moisture |
≤10% |
≤9% |
≤10% |
≤10% |
|
pH |
6.5 ~ 8.5 |
6.5 ~ 8.5 |
6.0 ~ 8.5 |
6.0 ~ 8.5 |
|
Pulp making rate (θ600 RPM reading): 0.88 g sample in 350ml deionized water 1.33 g sample in 350ml of 4%NaCl 1.0 g sample in 350ml saturated with NaCl |
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≥30 ≥30 ≥30 |
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|
|
Rheological properties: 2.0 g sample in 350ml seawater 3.0 g sample in 350ml seawater 4.0 g sample in 350ml seawater |
YP≥5 YP≥20 YP≥40 |
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YP≤1 YP≤1 YP≤1 |
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API fluid loss: 2.0 g sample in 350ml seawater 3.0 g sample in 350ml seawater 4.0 g sample in 350ml seawater |
≤20ml ≤15ml ≤10ml |
|
≤20ml ≤15ml ≤10ml |
|
|
API fluid loss: 0.75 grams of sample in seawater |
|
≤26ml |
|
|
|
Rheological properties: 2.5 g sample in 350ml deionized water 2.5 g sample in 350ml saturated with NaCl
|
|
|
|
PV<18 YP<18 PV<8 YP<8 |
|
API fluid loss: 0.5 g sample in 350ml deionized water 1.0 g sample in 350ml seawater/KCL
|
|
|
|
≤10ml ≤24ml |
Polyanionic cellulose (PAC) product model, quality index 2017-11-28 This article is read 17 time