Annular Pressure Losses Prediction Using Power-Law Model with Polymer Water-Base Mud | ||
| Journal of Petroleum and Mining Engineering | ||
| Article 6, Volume 20, Issue 1 - Serial Number 130, 2018, Pages 58-65 PDF (507.86 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpme.2018.38799 | ||
| Authors | ||
| George Kheir* 1; Ahmed El Gibaly2; Mohamed Farahat2 | ||
| 1Halliburton | ||
| 2Faculty of Petroleum and Mining Engineering, Suez University, Egypt | ||
| Abstract | ||
| Bottomhole Pressure (BHP) determination is quite crucial in the success of the drilling operations, especially on tight-drilling window environment. The calculation becomes much more critical when drilling with near-balance bottomhole pressure on the unconventional drilling techniques like Managed Pressure Drilling (MPD). Although Pressure-While-Drilling (PWD) technology can provide measured values of Bottomhole Pressure, it is so expensive and needs circulation to convey readings. Also, in case of tool failure, it consumes a lot of time to trip out of hole in order to change the tool, especially on deep-well drilling. On this paper, Bingham, Power-Law, Herschel-Bulkley and API RP13D rheological models have been utilized to calculate the Annular Pressure Loss (APL) on a deep well with polymer Water-Base Mud (WBM). A comparative study between model-calculated and PWD-measured values of APL for 15 points along the wellbore was conducted on the calculation of Annular Pressure Loss. Power-Law model was found the most optimum rheological model for polymer Water-Base Mud, due to exhibiting no Yield Stress. Power-law model gave 35 psi average error which can be tolerated most of the time during drilling operations. | ||
| Keywords | ||
| Bottomhole Pressure; Calculation; Rheological models; Power-Law model; Polymer Water-Base Mud | ||
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