DSC EXTENDER-75
Outstanding Characteristics:
Extends the practical use temperature of HEC Polymers by 75 to
100°F.
Compatible with all other common mud additives.
Non corrosive and non toxic.
Low viscosity liquid material which dissolves instantly in any
aqueous fluid with minimal agitation.
Useful over a broad temperature range.
Description:
DSC EXTENDER-75 is a specially formulated additive which greatly
enhances the thermal stability of drilling, completion and workover
fluids containing HEC Polymers such as DSC HEC LINEAR
GEL and DSC
VIS.
Application:
30 to 40 gallons per 100 (42 gallon) barrels of HEC polymer pill.
Handling and Shipping:
Observe warning label on product container. Normal precautions
for industrial chemicals apply.
Packaging:
DSC EXTENDER-75 is available in drums and bulk quantities.
TABLE 1
TYPICAL PHYSICAL PROPERTIES
DETERMINED BY TYPICAL COMMERCIAL MATERIAL
Specific
Gravity at 20/20°C
Delta specific gravity/delta +, 10-20°C
20-55°C |
|
1.1232
0.00058
per deg C
0.00058 per deg C |
Vapor
pressure at 20°C
Pour point
Solubility in water at 20°C
|
|
11.9
mm hg
-40°C (Approx.)
Complete |
Absolute
viscosity at 0°C
20°C
Surface
tension at 20°C
|
|
510
cps
125 cps
529 dynes/cm |
pH
at 25°C
Color
|
|
10.2
to 11.0
Amber |
This information is not to be taken as a warranty or representation for which
we assume legal responsibility.
TABLE 2
SHIPPING DATE DETERMINED ON TYPICAL COMMERCIAL MATERIAL
SUBJECT TO CHANGE WITHOUT NOTICE
Average
weight per gallon at 20°C
Flash point, tag closed cup (ASTM
D56) |
|
9.38
lb.’s
None |
Type
container and net contents
5 gallon DOT spec 17E
55 gallon DOT spec
17E |
|
46.9
lb.’s
516 lb.’s |
DOT
label required
DOT shipping
name
DOT hazard classification |
|
None
None
None |
Thermal Stability:
DSC EXTENDER-75 dramatically enhances the thermal stability of
fluids containing polymer hec. The following figures show laboratory
data obtained by heating samples of hec solutions containing 0,2700,
5300,8000 ppm of DSC EXTENDER-75 under various conditions. Actual
field experience predicts even less viscosity loss than is indicated
in the graphs.
DSC
EXTENDER-75 also enhances the thermal stability of hec polymers
in fresh water and brines, such as NaCl and CaCl2, as well as the
KCl solutions shown. It is equally effective in higher or lower
concentrations of HEC polymers, in the presence of other mud additives,
such as fluid loss agents, corrosion inhibitors or defoamers.
Table 3 shows that the addition of DSC EXTENDER-75 does not affect
the rheology or fluid loss properties of the fluid. The material
is effective over a broad pH range (8.5 to 12.0) and, under use
conditions, is noncorrosive.
TABLE 3
TYPICAL PROPERTIES OF AN HEC POLYMER BASED FLUID
PROPERTY |
BASE
FLUID |
BASE
FLUID •
+8000 PPM
DSC QUICK VIS
EXTENDER-75 |
| Apparent
viscosities, cp |
15.5 |
16 |
| Plastic
viscosities, cp |
10 |
10 |
| Yield
point, #/100 sq. ft. |
11 |
12 |
| Gel
(10 sec/10 min.) #/100 sq. ft. |
1/1 |
1/1 |
| API
filtrate (cc/30 min.) |
10.5 |
10.8 |
