Herianto, Topan Effects of Additives and Conditioning Time on Compressive and Shear Bond Strengths of Geothermal Well Cement. Proceedings of the World Geothermal Congress 2005.
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Effects of Additives and Conditioning Time on Compressive and Shear Bond Strengths of Geothermal Well Cement.pdf Download (387kB) | Preview |
Abstract
Waiting on cement in the cementing operation of geothermal wells is usually conducted from 8 hours to 24 hours after displacement of cement into an annulus of casing. After that, the quality of cement is evaluated using the CBL (Cement Bond Log) test. Evaluation results of the compressive strength and shear bond strength that is interpreted at 24 hours does not reflect the final strength of the cement. The laboratory experiment for 7-day measurement indicated that extending additives to API class G cement could increase the compressive strength and shear bond strength of cement immediately for about 3 days. After that the compressive strength slightly changed or stable until the seventh day, whereas the shear bond strength still increased in lower level. The experiment was carried out at a temperature of 150 o C dan pressure 2000 psi in a curing chamber that was contaminated with formation fluid of the Kamojang Field.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Ir.Drs Herianto Topan |
| Date Deposited: | 30 Apr 2019 02:39 |
| Last Modified: | 30 Apr 2019 02:39 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/19458 |
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