METHOD AND DEVICE FOR DETERMINATION OF LOCAL SPATIAL EXTENT OF PHASE OF VALUABLE MATERIAL MINERAL IN ROCK Russian patent published in 2015 - IPC E21B21/06 E21B49/00 G01N15/02 E21C39/00 

FIELD: mining.

SUBSTANCE: invention relates to the method and the device for determination of local size of mineral grain for a valuable material mineral in rock of a field or deposit, and rock includes at least one another mineral, and the valuable material mineral is of higher density, than at least one another mineral. The method is characterised by the following stages: execution of the process of rock drilling using the drilling rig, with forming of cuttings, formation of aerosol which comprises cuttings and gas flow, transfer of aerosol from the drilling rig to at least one air separator, execution of sizing in a flow and at least two fractions comprising particles corresponding to equal-settling of cuttings, and determination of property of at least one of fractions which is used as a measure for the local size of mineral grain for valuable material mineral in rock.

EFFECT: determination of local grain size of valuable material mineral in rock of a field or deposit.

20 cl, 3 dwg