12.11.15 StimISO13503_2Properties
Topic Version  1  Published  11/11/2016  
For Standard  WITSML v2.0  
Type:  Class  Stereotype:  «XSDcomplexType» 
ISO135032 properties.
Name 
Type 
Notes 

AbsoluteDensity 
MassPerVolumeMeasure 
The density the material would have if no intragranular porosity is present. (e.g. Boyle’s Law porosimetry). 
AcidSolubility 
MassPerMassMeasure 
The solubility of a proppant in 12:3 HCl:HF for 30 minutes at 150°F is an indication of the amount of soluble materials (i.e. carbonates, feldspars, iron oxides, clays, etc) present in the proppant. 
ApparentDensity 
MassPerVolumeMeasure 
Apparent density excludes extragranular porosity by placing a known mass in a volume of fluid and determining how much of the fluid is displaced (Archimedes). 
BulkDensity 
MassPerVolumeMeasure 
Bulk density includes both the proppant and the porosity. This is measured by filling a known volume with dry proppant and measuring the weight. 
ClustersPercent 
DimensionlessMeasure 
Percentage of undesirable agglomerated discrete proppant particles which typically occurs more with inefficiently processed natural sand proppants as opposed to manufactured ceramic proppants. ISO 135032 and API RP19C limit the mass of clusters to less than 1%. 
KValue 
double 
Crush test classification indicating the highest stress level at which a proppant generated no more than 10% crushed material rounded down to the nearest 1,000 psi during a crush test. For example, a value of 14 means ‘14K’ which is 14000 psi. 
LossOnIgnition 
DimensionlessMeasure 
A mass loss (gravimetric) test method applied to coated proppants only, which determines the mass of resin coating applied to a natural sand or manufactured proppant by means of thorough combustion of the flammable resin from the nonflammable proppant. Reported as a % of original mass. 
MeanParticleDiameter 
LengthMeasure 
The mean diameter of particles in a sample of proppant. 
MedianParticleDiameter 
LengthMeasure 
The median diameter of particles in a sample of proppant. 
Roundness 
double 
Krumbein Roundness Shape Factor that is a measure of the relative sharpness of grain corners or of grain curvature. Krumbein and Sloss (1963) are the most widely used method of determining shape factors. 
SpecificGravity 
double 
Not formally part of ISO 13503.2 properties, the specific gravity is the apparent density of the proppant divided by the density of water. 
Sphericity 
double 
Krumbein Sphericity Shape Factor that is a measure of how closely a proppant particle approaches the shape of a sphere. Krumbein and Sloss (1963) are the most widely used method of determining shape factors. 
Turbidity 
double 
A measure of water clarity, how much the material suspended in water decreases the passage of light through the water. Unit of measure may be Nephelometric Turbidity Unit (NTU), but may vary based upon the detector geometry. 
uid 
String64 
Unique identifier for this instance of StimISO13503_2Properties. 
Association 
Notes 

From: StimISO13503_2Properties.SieveAnalysisData 0..*To: ISO13503_2SieveAnalysisData Association 

From: StimISO13503_2Properties.CrushTestData 0..*To: ISO13503_2CrushTestData Association 

From: StimProppantAgent.ISO13503_2Properties 0..*To: StimISO13503_2Properties Association 