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Determination of formation temperature from bottom-hole temperature logs—a generalized Horner method
A new technique has been developed for the determination of the formation temperature from bottom-hole temperature logs. The adjusted circulation time concept, and a semi-analytical equation for the dimensionless temperature at the wall of an infinite long cylindrical source with a constant heat flow rate, is used to obtain the working formula. It is shown that the transient shut-in temperature is a function of the mud circulation and shut-in time, formation temperature, thermal diffusivity of formations and well radius. The sensitivity of the predicted values of formation temperature to the thermal diffusivity is shown. Two examples of calculations are presented.
Determination of formation temperature from bottom-hole temperature logs—a generalized Horner method
A new technique has been developed for the determination of the formation temperature from bottom-hole temperature logs. The adjusted circulation time concept, and a semi-analytical equation for the dimensionless temperature at the wall of an infinite long cylindrical source with a constant heat flow rate, is used to obtain the working formula. It is shown that the transient shut-in temperature is a function of the mud circulation and shut-in time, formation temperature, thermal diffusivity of formations and well radius. The sensitivity of the predicted values of formation temperature to the thermal diffusivity is shown. Two examples of calculations are presented.
Determination of formation temperature from bottom-hole temperature logs—a generalized Horner method
Determination of formation temperature from bottom-hole temperature
I M Kutasov (Autor:in) / L V Eppelbaum (Autor:in)
Journal of Geophysics and Engineering ; 2 ; 90-96
01.06.2005
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Estimating Darcy flow velocities from correlated anomalies in temperature logs
| IOP Institute of Physics | 2005