The outcomes of a laboratory research of heat conduction of sedimentary rocks for want of simultaneous<br>influence to samples measured materials of stratum temperatures, pressure and fluid (oil, gas and water)<br>in an interval 293-573К and hydrostatic pressure in an interval 0,1-150 МПа are adduced (indicated). The<br>physical explanation of regularities of a modification of a heat conduction of investigated breeds from deposits<br>East Pre-Caucasus is given. The methodical and instrument developments on a research of heat conduction<br>in model conditions are represented.