Identification and Mitigation of Friction- and Cutting-Action-Induced Stick/Slip Vibrations with PDC Bits
| Autor: | Brad Dunbar, Chris Propes, John Leslie Wisinger, Shilin Chen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
business.industry
Mechanical Engineering Energy Engineering and Power Technology 02 engineering and technology Structural engineering Slip (materials science) 010502 geochemistry & geophysics 01 natural sciences Vibration 020401 chemical engineering 0204 chemical engineering business Geology 0105 earth and related environmental sciences |
| Zdroj: | SPE Drilling & Completion. 35:576-587 |
| ISSN: | 1930-0204 1064-6671 |
| DOI: | 10.2118/199639-pa |
| Popis: | Summary In this paper, we provide some new insights into stick/slip vibration in drilling with polycrystalline diamond compact (PDC) bits. Fifty-six field runs under various drilling conditions were collected with the help of on-bit vibration sensors. Stick/slip vibration occurrence during drilling was analyzed. Two types of stick/slip vibrations were identified: cutting-action-induced stick/slip and friction-induced stick/slip. Methods were developed to determine whether a stick/slip occurrence is induced by cutting action or by friction. Statistical analysis found that bit drilling efficiency (DE) is well correlated with the occurrence of cutting-action-induced bit stick/slip vibration. If a PDC bit is designed so that its DE is greater than a critical value, then the cutting-action-induced bit stick/slip vibration is not expected in drilling. Increasing the aggressiveness of the cutting structure of a PDC bit within a limited critical depth of cut is found to be helpful to mitigate bit stick/slip vibration. |
| Databáze: | OpenAIRE |
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