| Title | Temperature Logging in Perforated Wells |
|---|---|
| Authors | Per-Gunnar Alm, Leif Bjelm |
| Year | 2006 |
| Conference | Stanford Geothermal Workshop |
| Keywords | temperature logging, perforating, drawdown, built up |
| Abstract | The deep geothermal well drilling in Lund during 2002 and 2003 reached 3700 m. The lower 1700 m was drilled in crystalline basement rocks. Casing was installed to 3310 m. In order to test and evaluate the well both open hole and perforated casing testing was carried out. The report brings to attention the usefulness of repeated temperature logging over the selected sections. The measurements were carried out under drawdown and built up conditions. All pump testing was performed as air lift operations. Retrieved data has proven to be useful when for example evaluating perforation success, thermal heterogeneity and temperature disturbances. |