Product Introduction
Drilling fluid filtrate reducer polymer GD-K（Ⅰ、Ⅱ、Ⅲ type）is a newly-developed filtrate reducer product of our company, which includes three kinds of specifications.
GD-K(Ⅰtype) is tackifying filtrate reducer. Is mainly the copolymerization of acrylic acid, acrylamide, acrylonitrile, AMPS, acrylic acid calcium, etc. It is mainly used as filtrate reducer in all kinds of fresh water and salt water drilling fluid, and it can inhibit hydration of shale.
GD-K(Ⅱtype) is non- tackifying filtrate reducer. It is mainly graft copolymerization of acrylic monomers, AMPS monomers and starchy. It has strong filter loss reducing ability in fresh water, salt water, saturated brine and composite brine drilling fluid.
GD-K(Ⅲtype) is modified natural polymer filtrate reducer, mainly composed of starch modification. It is applicable to be used as filtrate reducer in fresh water mud, 4% salt water mud and saturated salt mud.
The products are powdered solid with very strong solubility. It is compatible with other drilling fluids. The recommended dosage in fresh water drilling fluid is 0.2%～0.5%, and in saline drilling fluid 1.0%～2.0%.
Main Technical Indicators
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Items |
Indicators |
|||
|
Ⅰtype |
Ⅱtype |
Ⅲ type |
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|
Appearance |
Free-flowing powder |
Free-flowing powder |
White or light yellow powder |
|
|
Moisture,% |
≤10.0 |
≤10.0 |
≤12.0 |
|
|
Weight of screen residue,% |
≤10.0 |
≤10.0 |
--- |
|
|
pH value |
≥8.0 |
≥8.0 |
8.0±1.0 |
|
|
1% aqueous solution colloidal viscosity,mPa•s |
≥20.0 |
--- |
--- |
|
|
Composite brine |
Colloidal viscosity,mPa•s |
≥15.0 |
≤15.0 |
--- |
|
PV,mPa•s |
≥10.0 |
≤10.0 |
--- |
|
|
Filter loss,ml |
≤15.0 |
≤15.0 |
--- |
|
|
40g/L brine |
Viscometer 600r/min reading |
--- |
--- |
≤18.0 |
|
Filter loss, mL |
--- |
--- |
≤10.0 |
|
|
Saturated brine |
Viscometer 600r/min reading |
--- |
--- |
≤20.0 |
|
Filter loss, mL |
--- |
--- |
≤10.0 |
|
The product is packaged with three-in-one paper plastic composite bag lined with plastic bag. The net weight of each bag is 25kg±0.2kg. The products shall be stored in cool, dry and ventilated places.
The product is non-toxic, causing no harm to the environment and human body. It shall be handled as industrial chemicals and the workers should use protection tools when processing the product. Please refer to the International Material Safety Data Sheet (MSDS) for safety attentions.