METHOD OF THERMAL LOGGING OF OIL WELLS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2010 - IPC E21B47/06 

FIELD: oil-and-gas production.

SUBSTANCE: in open well bore it is located cylindrical probe outfitted by temperature sensors each of which is located in one of probe's circular sector implemented of high-heat-conducting material and heat-insulated from each other. It is implemented registration of probe temperature by sensors. After alignment of readouts of all temperature sensors it is implemented movement of probe by shaft of well up to mentioned width. It is stopped probe and registered recovery curves of temperature for each sector during 10-40 minutes. According to velocity of temperature change there are indicated recovery curves of temperature corresponding to sector with maximal velocity of temperature changing, and opposite to it sector with minimal temperature change velocity. About heating properties of rocks from the value's of ratio of difference of temperatures between mentioned opposite sectors to changing of sensor temperature, allowing minimal measurement velocity of temperature from the moment of probe stop.

EFFECT: reduction of measurement time, absence in probe of mobile elements, minimisation of impact on values of measurements of well fluid convection, activated by process of measurement, ability of simultaneous measurement of heating properties of rocks in 3-5 point in the range of depths of several metres length.

5 cl, 4 dwg