INTRODUCTION

A good drilling fluid,   
*    Promotes a fast rate of penetration,
*    Stabilizes shales,
*    Puts a   protective cake, over porous sections,
*    Keeps the hole clean
*    Controls pressure. 
*    It must have enough viscosity and gel strength to suspend cutting and weight materials.

Polyanionic Cellulose products are field tested and especially developed to improve the effectiveness of oil well drilling muds available in two grades.

 POLYANIONIC CELLULOSE  (Low viscosity)
 POLYANIONIC CELLULOSE  (Regular grade)

SILENT FEATURES OF POLYANIONIC CELLULOSE

-  Improves control of   fluid loss
-  Are compatible in high saline conditions
-  Are resistant to bacterial attack
-  Are resistant to degradation at high temperature
-  Help to speed up drilling operation.

 ADVANTAGES OF POLYANIONIC CELLULOSE IN DRILLING MUDS

- Polyanionic Cellulose Provides controlled viscosity with the lowest possible  
  solids contents
- It ability to promote fast rate of penetration
- It is a pure, high, molecular weight, polymer that is easily dispersible in all water base-drilling Muds.
- It is effective in fresh water and in all ranges of salt water, from seawater to                          
  saturated salt Water mud system.
- It gives excellent whole control properties a minimum of solids.
- It is non - biodegradable and extremely resistant to microorganisms.

USING COMBINATION’S OF POLYANIONIC CELLULOSE REGULAR AND LOW VISCOSITY

Used together in appropriate   proportion regular and   low viscosity of   PAC combines to enhance the properties of   mud. Polyanionic Cellulose Regular, the longer chain polymer gives   the better   inhabitation and   water loss control   than   PAC   low   viscosity   grade.  A small amount of PAC low viscosity   is admixed   to   a high solids mud to improve viscosity control.  Regular PAC than added, good inhabiting and water loss control is attained without increasing viscosity.

PACKING AND STORAGE

Polyanionic Cellulose is supplied   in 25 Kilo   net weight   HDPE - ploy lined sacks with extra Liner inside. It should be stored in the dry under which conditions it can be kept indefinitely.

N.B.  : While the   information contained in this bulletin is accurate to the best of our Knowledge it implies no guarantee and   freedom   from patent restrictions cannot be assumed.