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Break in
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- To start drilling operations with a new bit by rotating the bit slowly under a light load for a short period of time before full speed and load are applied to the bit.
- To round off sharp corners and points on a carbon through use and repeated resetting in a bit.
- To operate any new machine at less than full capacity for a short time.
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Operations, английский
- Research, incorporated фирма «оперейшнз ресерч ивкорпо- рейтед»
- Field movements, whether offensive or defensive.
- Операционный отдел (в инвестиционном банке)
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Broaching bit, английский
- A reaming bit. see broach
- A tool used to break down the walls between two contiguous boreholes. b rod. a former standard diamond-drill rod having an outside diameter of 12%2 inches. superseded in 1954 by a new standard drill rod designated by the letter name bw. see appendix, table 15
Bottom-hole pressure, английский
- The load, expressed in pounds or tons, applied to a bit or other cutting tool while drilling.
- The pressure, expressed in pounds per square inch (p.s.i), produced at the bottom of a borehole by the weight of the column of circulation or other liquid in a borehole.
- The pressure, expressed in pounds per square inch (p.s.i.), exerted by gas or liquids ejected from the rocks at or near the bottom of a drill hole.
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