METHOD OF TRACKING OF MOVEMENT OF TREATING LIQUID IN PRODUCTIVE FORMATION Russian patent published in 2015 - IPC E21B47/11 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to production of hydrocarbon raw materials from the productive formation drilled by a well and relates, in particular, to non-radioactive indicators and methods of their use for tracking of movement of treating liquid and formation fluids. The method of the treating liquid movement tracking in the productive formation drilled by a well comprising: preparation of the treating liquid containing multiple indicator additives representing drops of high-viscosity liquid with the diameter no more than 1000 nanometres; pumping the treating liquid with multiple indicator additives into the borehole and productive formation; determination of position and distribution of the treating liquid by registration of changes in the physical properties of the formation caused by inflow of the treating liquid with multiple indicator additives.

EFFECT: improvement of accuracy of determination of position and distribution of the treating liquid by registration of changes in the physical properties of the formation caused by inflow of the treating liquid with multiple indicator additives.

18 cl