Laboratory Study of High Temperature Additive to Rheology Properties of Drilling Mud under Dynamic Conditions
- Key words
- Additive,HPHT, Rheological Properties.
- Conference
- World Geothermal Congress
- Year
- 2005
- Session
- 10. Drilling and Completion Technology
- Language
- English
- Paper number
- 1009
Full text
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Abstract
Sometimes when drilling is in progress, we have to deal with high pressure and high temperature. It happens specially when the target is deep enough or geothermal well. HPHT condition will be able effect the performance of drilling fluids by altering its rheological at high pressure up to 3000 psig and high temperature up to 200oC by Fann Model 70. Research was done with various additive, such as Chemtrol-X, CMC LV, Polyplus and Ligco, with have objective to repair mud rheological at HPHT. Based on this research by API recommended on pound per barrel (ppb). Results of this research are the composition is 2-3 ppb additive to be added on water based mud and stable rheology up to 200 oC.
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