Product Bulletin

D-DT D-D drilling detergent is an aqueous blend of surface-active agents.It is designed to reduce the surface tension of all water-base mudsystems and reduce the sticking tendency of water-sensitive shale cuttings.

Physical appearance . . . . . . . . . . . . Light-blue-green liquidSpecific gravity . . . . . . . . . . . . . . . . 1.01 1.02pH (1% solution) . . . . . . . . . . . . . . . 7.5 8.5Solubility in water . . . . . . . . . . . . . . 100%Freezing point . . . . . . . . . . . . . . . . . 32F (0C)

TYPICAL PHYSICALPROPERTIES

APPLICATIONSD-D has application in all drillingareas and can be used in virtuallyany water-base drilling fluid. It isused primarily in upper-hole drill-ing to minimize bit and Bottom-Hole Assembly (BHA) balling, reducesurface tension, and aid in drop-ping sand and the removal of drillsolids. It may be used as an emulsi-fier at any point in the drillingoperation to improve emulsificationof oil and reduce the viscosity of oil-contaminated fluids. D-D frequentlyreduces torque and drag, even whenno oil is present in the system.

Normal treatments range from 0.1 to 0.2 lb/bbl (0.29 to 0.57 kg/m3)and provide satisfactory performanceunder most conditions. In severegumbo shale areas, 4 to 6 lb/bbl (11.4 to 17.1 kg/m3) concentrationsof D-D are recommended to mini-mize bit and BHA balling; higher con-centrations may cause foaming andrequire a defoamer. D-D is effectivein all water-base systems includingfreshwater, brackish water, seawaterand saturated saltwater fluids.

LIMITATIONS

1996 M-I Drilling Fluids L.L.C. All rights reserved. D-D is a registered trademark of M-I Drilling Fluids L.L.C.MI-10400 1.5M 1/97 Litho in U.S.A.

P.O. Box 721110Houston, Texas 77272-1110Tel: 2815611300Fax: 2815617240http://www.midf.comE-mail: mimud@midfre.com

The freezing point of D-D is 32F(0C). D-D CWT, a special cold-weather formulation with afreezing point of -29F (-20C), is available.

TOXICITY AND HANDLING

Bioassay information is available on request.

Handle as an industrial chemical,wearing protective equipment and observing the precautions asdescribed on the Transportation andMaterial Safety Data Sheet (MSDS).

Fluids containing high concentra-tions of D-D may not be suitable for discharge into all marineenvironments.

PACKAGING AND STORAGE

D-D is a liquid packaged in 5-gal(18.9-l) cans and 55-gal (208.2-l)drums. International packagingmay vary.

Store in a location away fromsources of heat or ignition.

This material is supplied solely for informational purposes and M-I Drilling Fluids L.L.C.makes no guarantees or warranties, either expressed or implied, with respect to the accu-racy or use of this data. All product warranties and guarantees shall be governed by theStandard Terms of Sale.

Minimizes bit and BHA balling. Reduces the surface tension of the

liquid phase, helping to drop sandand remove drill solids.

Improves water-wetting action onall solids and reduces the stickingtendency of reactive shale cuttings.

Functions as an emulsifier, reducing the viscosity of oil-contaminated fluids.

Effective in all water-base muds.

ADVANTAGES