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- Title
Nanoparticles as Promising Additives to improve the drilling shale of the Kafr El Sheikh Formation in Temsah Field, Mediterranean Sea, Egypt.
- Authors
Mohamed, Adel K.; El fakharany, Taher E.; Sakr, Ibrahim
- Abstract
The problematic shale in the Mediterranean Sea such as the Kafr El Sheikh Formation, are considered as potential source of borehole instability. This study is focused on the analysis of the conventional drilling fluids used for drilling this shale and work to change its composition to prevent or reduce the borehole instability problems. Shale cuttings were collected from four different wells in Temsah concession. These wells were evaluated using X-ray diffraction, X-ray fluorescence and cation exchange capacity using methylene blue test. Swelling index of the shale was measured using linear swell meter. Nano-particles used in this study are Al2O3, TiO2, nano shield and SiO2 as inhibitors for shale swelling. The inhibitors are added to the conventional drilling fluids instead of potassium chloride. The inhibition of swelling for these shale cuttings using 7% KCl caused a dramatic decrease in swelling percentage of shale that reached to nearly one fourth the value of the drilling fluid-free inhibitor (blank fluid). These values ranged from 72% with blank fluid to 18% (with shale Temsah NW-10 well), from 50% to 12.5% (with shale Temsah SE-01 well), from 40% to 10% (with shale Temsah -03 well) and from 47.5% to 13.5% (with shale Temsah -09 well).
- Subjects
KAFR al-Shaykh (Egypt : Province); EGYPT; SHALE; DRILLING fluids; DRILLING muds; X-ray fluorescence; METHYLENE blue; NEUTRINO detectors; BOREHOLES
- Publication
Petroleum & Coal, 2024, Vol 66, Issue 1, p192
- ISSN
1335-3055
- Publication type
Article