METHOD FOR DETERMINING A STEAM DRYNESS FACTOR.

摘要

The aim of the invention is to provide a simple field-applicable method which is devoid of additional equipment and is used for determining a steam dryness factor directly when the process of thermal treatment of high-viscosity oil formations is carried out. The aim is attained by the inventive method consisting in adding a gas incondensable when pumped in a well to a saturated water steam pumped therein. The presence of the incondensable gas in a mixture modifies the steam partial pressure, in such a way that the steam dew-point temperature is also modified. The results of temperature or pressure measurement in the well bore are used for calculating the steam dryness factor.