• sand control
    Petroleum - English

    Sand Control

      Consequences of sand production: • Wellbore fill. • Equipment problems due to sand fill. • Sand erosion of downhole and surface equipment. • Sand accumulation on surface and Sand Disposal. • Production Loss. • Casing / Liner Collapse. Forces Aiding in Resisting Sand Production: • Intergranular frictional forces and bonding (cementing) help resist grain movement • Capillary Pressure adds further grain-to-grain bonding. Forces Contributing to Sand Production: • Pore pressure relieves frictional forces. • Production of wetting phase reduces capillary pressure forces. What causes sand production? • Totally or weakly unconsolidated formations. • Changing stresses in the near wellbore area. • Water Production. Sand Production Mechanism Primer: – Rock shear collapse owing to in situ…