SU1167296A1 - Method of determining coefficient of friction in drilling with diamond bits - Google Patents
Method of determining coefficient of friction in drilling with diamond bits Download PDFInfo
- Publication number
- SU1167296A1 SU1167296A1 SU833700177A SU3700177A SU1167296A1 SU 1167296 A1 SU1167296 A1 SU 1167296A1 SU 833700177 A SU833700177 A SU 833700177A SU 3700177 A SU3700177 A SU 3700177A SU 1167296 A1 SU1167296 A1 SU 1167296A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- crown
- drilling
- friction
- diamond
- height
- Prior art date
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- Earth Drilling (AREA)
Abstract
СПОСОБ-ОПРЕДЕЛЕНИЯ КОЭФФИЦИЕНТА ТРЕНИЯ ПРИ БУРЕНИИ АЛМАЗНЫМИ КОРОНКАМИ, включающий измерение осевой нагрузки на коронку, частоты ее вращени и времени бурени , отличающийс тем, что, с целью повышени его точности и уменьшени трудоемкости, дополийтельно измер ют износ коронки по высоте а коэффициент трени ju. определ ют по формуле W О5 ю со о:A METHOD FOR DETERMINING A Friction FRIITIFIER WHEN DRILLING WITH DIAMOND CROWNs, including measuring the axial load on the crown, its rotational frequencies and the drilling time, characterized in that, in order to increase its accuracy and reduce the labor intensity, the crown’s wear height and measure the training factor ju. is determined by the formula W O5 o so:
Description
1, t1 Изобретение относитс к бурению а именно к способам определени коэф фициента трени при бурении алмазными коронками, знание которого необходимо дл управлени процессом буре ни . Цель изобретени - повышение точности способа и уменьшение его трудо емкости. Дл определени коэффициента трени по предлагаемсту способу необходимо выполнить следующие операции: измерить осевую нагрузку на коронку, частоту ее вращени , врем бурени и износ коронки по высоте за указанное врем бурени . Зна конструктивные параметры алмазной коронки и приведенные данные коэффициент /U. определ ют по формуле S. . ...- h F п tf 60 ение удельного расхода алмазов и поышение производительности бурени . де Sjes площадь забо { -площадь торца коронки; -средний радиус коронки; -средневзвешенна площадь контакта алмаза; -твердость матрицы, армиг рованной алмазами; -износ коронки по высоте; -частота вращени ; -осева нагрузка на коронку; t. - врем бурени в рейсе. D Возможность быстрого и точного определени .коэффициента трени при бурении позвол ет определить степень абразивности горной породы и более точно выбрать оптимальные управл ющие параметры, что обеспе.чивает сни1, t1 The invention relates to drilling, in particular, to methods for determining the coefficient of friction when drilling with diamond crowns, knowledge of which is necessary to control the process of a drill. The purpose of the invention is to improve the accuracy of the method and reduce its labor capacity. To determine the friction coefficient of the proposed method, it is necessary to perform the following operations: measure the axial load on the crown, its frequency of rotation, the drilling time and the crown's wear along the height for the specified drilling time. Know the design parameters of the diamond crown and the given data coefficient / U. determined by the formula S. ...- h F p tf 60 of the specific consumption of diamonds and an increase in drilling productivity. de Sjes the area of the slab; -the average radius of the crown; - weighted average contact area of diamond; - hardness of the matrix, reinforced with diamonds; - crown height height; rotation frequency; - sowing load on the crown; t. - time of drilling in the voyage. D The ability to quickly and accurately determine the friction coefficient during drilling allows us to determine the degree of abrasiveness of the rock and more accurately select the optimal control parameters, which ensures
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU833700177A SU1167296A1 (en) | 1983-12-23 | 1983-12-23 | Method of determining coefficient of friction in drilling with diamond bits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU833700177A SU1167296A1 (en) | 1983-12-23 | 1983-12-23 | Method of determining coefficient of friction in drilling with diamond bits |
Publications (1)
Publication Number | Publication Date |
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SU1167296A1 true SU1167296A1 (en) | 1985-07-15 |
Family
ID=21103318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU833700177A SU1167296A1 (en) | 1983-12-23 | 1983-12-23 | Method of determining coefficient of friction in drilling with diamond bits |
Country Status (1)
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SU (1) | SU1167296A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10119337B2 (en) | 2014-11-20 | 2018-11-06 | Halliburton Energy Services, Inc. | Modeling of interactions between formation and downhole drilling tool with wearflat |
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1983
- 1983-12-23 SU SU833700177A patent/SU1167296A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 582381, кл. Е 2l В 44/00, 1976. Авторское свидетельство СССР № 825878, кл. Е 21 В 45/00, 1972. . * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10119337B2 (en) | 2014-11-20 | 2018-11-06 | Halliburton Energy Services, Inc. | Modeling of interactions between formation and downhole drilling tool with wearflat |
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