Low-friction coating reduces PDC bit balling

被引：0
|
作者：
Rujhan Mat, M.
Zakaria, Mohd Zulkifi Bin
Radford, Steve
Eckstrom, Darren
机构：
来源：
JPT, Journal of Petroleum Technology | 2002年 / 54卷 / 12期
关键词：
Adhesion - Boreholes - Coating techniques - Computer simulation - Diamonds - Friction - Hydraulics - Oil well drilling - Polycrystalline materials - Polytetrafluoroethylenes - Pore pressure - Shale;
D O I：
10.2118/1202-0035-jpt
中图分类号：
学科分类号：
摘要：
A low-friction fluoropolymer-based coating was used to reduce polycrystalline diamond compact (PDC) bit balling. PDC bits drilling with oil-based mud (OBM) or synthetic-based mud (SBM) set the performance standard for drilling shales, especially in deep high-pressure wells. The new coating technique combined all the nonstick properties of Teflon with greatly improved durability and an enhanced ability to adhere to a base surface.
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页码：35 / 36
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