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Purchasing Guidelines Handbook - POLYANIONIC CELLULOSE - PAC HV (API 13A 18th Edition 2010) - For Drilling Fluids



Grade: Regular

Product Description:

API Specification 13A-18 1.1   

PAC-HV, also referred to as API PAC regular grade, is a water-soluble polymer produced only from cellulose chemically reacted with carboxy-methyl (anionic)groups. The product obtained is further purified to significantly increase the active polymer content.   

The product is a free-flowing and/or granular powder. See Table 17 for physical requirements.

API Specification 13A-18.1.2   

PAC-HV is widely used in water-based drilling fuid for a variety of applications, such as filtration control, viscosity and shale inhibition. Although field use can vary, this procedure focuses on filtration-control and viscosity-control characteristics.

Product Physical: API Specification 13A - 18.1.7

Requirements: To obtain the best handling in the field, it is recommended that the particle size for the PAC-HV powder be u 0.8mm(u 20 mesh)

Technical Requirements: API Specification 13A-18.1.1

Product Rejection: It shall not contain any other polysaccharides, such as starch, guar or other naturally occurring polymers or their derivatives.

API Specification 13A-18.1.4   

PAC-HV shall be free of any foreign polymer. Therefore, a qualitative starch determination shall be performe before performance tests. If starch is found, no further should be performed and the sample shall be rejected.

Table 17- PAC-HV physical requirements

Requirement                                                  Standard

Presence of starch or starch derivatives               Absent

Moisture content                                              Maximum 10%

Apparent viscosity                                              Minimum 50 cP

API filtrate volume                                              Maximum 23ml

Note: General Shipping & Marking Requirement are listed in the General Requirements Section of this Purchasing Guideline.

pac hv pac lv Polyanionic Cellulose