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      Polyanionic cellulose (PAC) product model, quality index

      聚陰離子纖維素

      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

      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

       

       

      ≥30

      ≥30

      ≥30

       

       

       

       

       

      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

       

       

      YP≤1

      YP≤1

      YP≤1

       

      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 78 time
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