BAKER HUGHES - Drilling Fluids Reference Manual

CORROSION
calcium brines at temperatures up to 300°F. BRINE-PAC ® 1500 forms a tough long
lasting coating on metal surfaces to resist penetration of dissolved organic gases,
hydrogen sulfide and carbon dioxide. The recommended treatment is 5 – 15 gallons per
100 bbl of brine
Invert Emulsion Fluids
1. In oil or synthetic fluids, the external phase (oil) is nonconductive and, therefore, basically
non-corrosive. Chemical inhibitor additions to oil fluids are not necessary.
2. Increase the emulsion stability of the system with treatments of CARBO-TEC ® / OMNI-
TEC TM and lime. This will provide the stability required for long-term packer fluid
service.
3. Raise the yield point and gel strengths with CARBO-GEL ® to prevent solids settling and
minimize segregation. For high-temperature applications, CARBO-GEL ® / CARBO-
VIS TM can be supplemented with CARBO-VIS TM HT. Cameron cell testing can be used
to provide a formulation with stable properties.
4. Increase the excess lime concentration to 5 lb m /bbl as a precautionary measure against
possible H 2 S intrusion. MIL-GARD ® (not MIL-GARD ® R) may also be added.
BAKER HUGHES DRILLING FLUIDS
REVISION 2006 8-14
REFERENCE MANUAL