Gravel Pack - High Level Model

Gravel packing is a sand-control method used to prevent the production of formation sand.

A gravel pack Job may be carried out in one or more stages.

A section or portion of the Gravel_Pack_Job is a Gravel_Pack_Job_Stage identified by Stage_Type.

Gravel pack job stages can be user defined as, for example, lower circulation stage, squeeze stage, upper circulation stage, etc.

A Gravel_Pack_Job associates with zero or more instances of Fluid_Pumping_Schedule.

A Gravel_Pack_Job_Stage associates with zero or one Fluid_Pumping_Schedule.

In either case, a Fluid_Pumping_Schedule has zero to many instances of Fluid_Pumping_Detail.