HYSSTER
The
HYSSTER system is a polymer and non swelling
clay based drilling, completion or workover fluid.
It is a recent addition to our product line and
has some very interesting properties.
A
typical HYSSTER system formulation:
Typical
system properties:
| Density
(with a pressurized mud balance) |
8.4
- 10.5+ ppg |
| Marsh
Funnel viscosity |
27
-28 sec/1000 ml |
| LSRV |
60,000
-150,000 cPs |
| Yield
Point |
30
- 50 lbs/100 ft2 |
| 10
Second Gel |
25
- 30 |
| 10
Minutes Gel |
40
- 50 |
| 30
Minutes Gel Strength |
40
- 50 |
|
pH (caustic based) |
10.5
- 11.0 |
The
system has been formulated using the following base
fluids:
- Fresh
Water
- Brackish
Water
-
Sea Water
-
Saturated NaCl
-
Various formates (individually and in combination)
-
Various Bromides
NOTE:
It
has often times been operator preference
to employ salts to meet density requirements
for the purposes of minimizing unwanted
solids while drilling reservoir sections
or for the additional inhibition benefits
certain salts provide.
Weighting
agents such as calcium carbonate and barite
have been used. We often recommend the use
of specifically sized calcium carbonate
for the purpose of minimizing initial pressure
transfer associated with exposing low pressure
formations to high annular pressures during
the drilling process. |
|
