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Units

Field Activity Planner comes with a set of pre-defined unit settings namely Metric, Field, and SI units.

Field units are primarily used by petroleum engineers, and Metric and SI are the same and are used internationally across the industry.

Units for projects

You select which one to use for your project in Default Unit System under Project Settings.

Unit Categories

The following predefined unit categories are available in the system:

General

Unit Type Unit Suffix Description
Force N, kN, Kg m/s2, lbf, g cm/s2 This is
Moment Nm, kNm, Kg m2/s2, lbf-ft, g cm2/s2 This is
Velocity
Angle Angular Value deg/rad/grad
Density
Dry Unit Weigth
Electrical
Power
Specific Heat Capacity
Coefficent of thermal expansion
Thermal Conductivity
U Value
Viscosity
Volume
Weight
Linear Weight
Area
Time
Stiffnes

Flowrate

Unit Type Unit Suffix Description
Gas Flowrate mmsm3/d, mmscf/d, MSCF/d, scf/d, scf/h, sm3/d, sm3/h, sm3/min, sm3/s This is

Ratio

Productivity Index

Length

Pressure

Temperature

Unitless

Request new unit types

There might be a need for you to include a new set of units for e.g. your metadata definitions or because of requirements for custom integrations etc. If so, we suggest that you contact support@fieldap.com, and explain your requirements and the use case so it can be considered for inclusion in a maintenance release. Note! Please include a sample unit description example as outlined below.

Unit Description Example

A Unit definition can :

  • Have a category
  • Have multiple units
  • Set has default for the category
  • Must have default for each unit system we support ( Metric, Field, SI ).

As an example:

<NumericalType Name="Gas Liquid Ratio" Category="Ratio" InternalUnit="STD_m3/m3" IsDefault="True">
    <Unit A="0.178108" B="1" C="0">SCF/STB</Unit>
  <Unit A="0.178108" B="1" C="0">SCF/bbl</Unit>
    <Unit A="" B="" C="">sm3/sm3</Unit>
    <Unit A="1" B="1" C="0">sm3/m3</Unit>
</NumericalType>  
<NumericalType Name="Gas Oil Ratio" Category="Ratio" InternalUnit="STD_m3/m3" IsDefault="True">
    <Unit A="0.178108" B="1" C="0">SCF/STB</Unit>
  <Unit A="0.178108" B="1" C="0">SCF/bbl</Unit>
    <Unit A="" B="" C="">sm3/sm3</Unit>
    <Unit A="1" B="1" C="0">sm3/m3</Unit>   
</NumericalType>

and:

"Gas Liquid Ratio": 
{
  "Metric": "sm3/sm3",
  "Field": "SCF/STB",
  "SI": "sm3/sm3"
},
"Gas Oil Ratio": 
{
  "Metric": "sm3/sm3",
  "Field": "SCF/STB",
  "SI": "sm3/sm3"
}

A, B, C values are not uses for now, but can be useful to define different constants of an equation to translate from one "InternalUnit" to the Unit defined.