versapac
TRANSCRIPT
8/8/2019 VERSAPAC
http://slidepdf.com/reader/full/versapac 1/2
Product Bulletin
V ERSAPAC V ERSAPAC rheological additive is a highly efficient thermally
activated organic thixotrope. A unique 100% active, powdered material, V ERSAPAC develops a high level of thixotropy in the
V ERSADRIL , V ERSACLEAN and N OVAPLUS oil- and synthetic-basefluid systems.
Physical appearance . . . . . . . . . . . . . Finely divided, cream-colored powderBulk density . . . . . . . . . . . . . . . . . . 1 g/cm3
Composition . . . . . . . . . . . . . . . . . . 100% organic polymer
TYPICAL PHYSICALPROPERTIES
APPLICATIONS
VERSAPAC is a 100% organic polymerthat allows for easy incorporationinto an active invert emulsion sys-tem without adversely affecting therheological properties until ther-mally activated. Its primary applica-tions are as an annular casing packand barrier fluid.
VERSAPAC should be introduced tothe active mud system through aconventional mixing hopper. Fullactivation is achieved when thetreated fluid is pumped into the wellwhere downhole temperatures willactivate the product on demand.
Alternatively, VERSAPAC-treated fluidscan be processed by medium-to-high shear equipment. Activationtemperature is typically in the 120to 150°F (49 to 66°C) range. Thisprocessing temperature range, nor-mally reached by using medium-to-high-shear equipment, is sufficientto fully build VERSAPAC’s rheology.
For effective thixotropic develop-ment, typical levels range from 0.5to 25 lb/bbl (1.4 to 14 kg/m3). Pilottesting is suggested to determine theoptimum loading level for any givensystem.
8/8/2019 VERSAPAC
http://slidepdf.com/reader/full/versapac 2/2
©1999 M-I L.L.C. All rights reserved.™VERSAPAC is a trademark of M-I L.L.C.
®VERSADRIL, VERSACLEAN and NOVAPLUS are registered trademarks of M-I L.L.C.
MI-12209 1M 5/99 Litho in U.S.A.
P.O. Box 721110Houston, Texas 77272-1110Tel: 281·561·1300Fax: 281·561·7240http://www.midf.comE-mail: [email protected]
TOXICITYAND HANDLING
Bioassay information is availableupon request.
Handle as an industrial chemical,wearing protective equipment and
observing the precautions asdescribed on the Material SafetyData Sheet (MSDS).
PACKAGINGAND STORAGE
VERSAPAC is packaged in 33-lb
(15-kg) sacks.
This information is supplied solely for informational purposes and M-I L.L.C. makes no guar-antees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Termsof Sale.
• Thermally activated gelling agentthat can be added directly to oil-and synthetic-base systems.
• Requires no new fluid and only asmall treatment to the existingmud system.
• Maximum formation stability, usingoil-base mud as the annular fluid.
• Minimal viscosity increases untiltemperature is applied.
• Minimum impact on ECD and
pumping requirements.• Gelled fluid column remains ableto transmit hydrostatic pressure.
ADVANTAGES