Oseh, Jeffrey O. and M.N.A.M., Norddin and Duru, Ugochukwu I. and Ngouangna, Eugene Ngwana and Issham, Ismail and Gbadamosi, Afeez Olayinka and Agi, Augustine Aja and Yahya, Muftahu N. and Oguamah, Ifeanyi A. (2024) Improvement in fluid loss control and viscosity of water-based drilling mud under high temperature and sodium chloride salt conditions using nanohydroxyapatite. The Journal of Engineering Research (TJER), 21 (1). pp. 33-45. ISSN 1726-6009 (print); 1726-6742(online). (Published)
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Abstract
It is difficult to drill efficiently with bentonite (BN)-based mud (BN-WBM) or water-based muds (WBMs) in high-salt electrolytes and deep wells. This is because the fluid's rheological parameters and filtration properties change in undesirable ways, affecting the well's production efficiency. To fix this, a high-salt and high-temperature-resistant nanohydroxyapatite (nanoHAp) additive was designed using sodium dodecyl sulphate (SDS). 0.1 to 0.5 wt% nanoHAp was added to WBMs, and a salt-resistant BN-WBM with nanoHAp was formulated with 4.8 wt% BN, 5.0 wt% sodium chloride (NaCl), and 0.5 wt% nanoHAp. At 25, 150, 180, and 210° C, the filtration and rheological characteristics of the drilling muds were evaluated. The findings revealed that between 25 and 210° C, nanoHAp increased the viscosity of the WBM by 15–139% at a 1021 s-1 shear rate. It also controlled the fluid loss of the WBM from 12.1-44.6 mL to 6.7-21.8 mL at all temperatures. It serves as an anti-salt agent by decreasing the NaCl-contaminated BN's viscosity by 57% compared to the reference value of 20.8 mPa. s at a shear rate of 1021 s-1. Further, it reduced the fluid loss by 56.8%, from 169 mL to 73 mL at 210° C. The nanoHAp surface has anionic sulphate head groups of SDS that efficiently attach to the BN surface. This keeps the Na+ ions from attacking the plate-like structure of the BN. This study reveals that nanoHAp has the capacity to inhibit BN coalescence and flocculation under saturated Na+ solutions and at high temperatures.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Bentonite; Fluid loss; High temperature; NanoHAp; Viscosity; Water-based mud |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Mrs. Nurul Hamira Abd Razak |
| Date Deposited: | 24 Jun 2025 04:55 |
| Last Modified: | 24 Jun 2025 04:55 |
| URI: | http://umpir.ump.edu.my/id/eprint/44161 |
| Download Statistic: | View Download Statistics |
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