IMPROVEMENTS IN DETERMINING SUB-SURFACE TEMPERATURE

摘要

There is described a technique for determining a temperature at a region below the surface of the Earth. In an embodiment, a time of travel of a seismic wave following the emission from a source into the earth is provided, and the travel time is used to estimate the temperature. In one example, a model based on the travel time and a further component, which may for example be based on heat flow and a constant of proportionality between seismic velocity and thermal conductivity, may be used to estimate the temperature.

主权项

1. A method of determining a temperature of a region below the surface of the Earth, the method comprising:
(a) providing at least one seismic travel time, being associated with a response to at least one source emission into said region in a seismic survey; and (b) using said travel time to determine said temperature at the or each travel time.