Premium Seal is a deformable and compressible micronized cellulose fiber which is compatible with water and oil based muds and has been specially designed to seal permeable formations. The optimum Particle Size Distribution (PSD) of graded fibrous particles creates a bridging action within a fraction of an inch of the bore hole and a matting effect within the mud wall cake. This type of sealing action will form a more permanent seal while drilling without subsequent danger of the bit, stabilizers, or drill pipe scraping off the seal, however, Premium Seal removes easily during production resulting in high return permeability. The particle sizes in Premium Seal allow it to seal micro fractures and prevent filtrate as well as whole mud damage to producing formations.

Bulk Density (lb/cu. Ft):	35.5
Color:	Tan
Form:	Solid
Appearance:	Tan Powder
Odor:	Mild
Solubility in Water:	Negligible

Minimizes differential sticking	Seals depleted formations & micro fractures
Mixes easily through hopper	Reduces torque and drag
Minimizes hole washouts	Non-damaging to formations
Controls wetting of shales	Good high temperature properties
Improves wall cake quality	Improves cement operations
Biodegradable and non-toxic	Improves logging and casing operations
Improves integrity of formation & log interpretation	Excellent seepage and lost circulation control without damaging rheology
Minimum loss over shakers & solids control equipment

Premium Seal (Coarse): Most effectively used as a pill. A high concentration of 20 to 40 ppb PREMIUM SEAL Coarse, along with an equal concentration of PREMIUM SEAL Fine, should be thoroughly mixed with mud or water, then swept or spotted across the loss zone. Utilize maximum concentration while retaining pumpable properties. A large enough pill should be used to cover the thief zone or the open hole section.

Premium Seal (Fine): 4 to 8 ppb while drilling. Maintenance will vary according to pressure regressions encountered and amount of water added to mud while drilling. Sweeping application - 15 to 30 ppb in a 25 to 50 bbl sweep.

Premium Seal is available in 25 pound bags.