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Steel-body PDC-bit technology improves bit performance. Anon. JPT, December 1998, 50(12), 42, 43 (Synopsis SPE paper 47815).

Details are given of the way improved drilling performance of steel-body bits produced significant savings for operators in directional wells, swelling shales, and a variety of applications requiring use of WBM. Thesse new bits have significantly higher blade standoff than matrix bits, thus providing greater face volume, which, with more efficient cuttings removal, contributes to better rate of penetration. A larger, normalized open-face volume contributes to hydraulic efficiency as well as discouraging cuttings from sticking to the bit body. Antiballing coating, advanced nozzle technology, and performance results are described.

Abstract details


Journal title: Journal of Petroleum Technology

Subjects: Iron and steel, Oil and gas extraction, Oil and gas, Oil, Primary energy production, Directional drilling, Drill bits

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