Fries, 1975 - Google Patents
Radioactive grease containing 85KrFries, 1975
View PDF- Document ID
- 9262558249667445275
- Author
- Fries B
- Publication year
External Links
Snippet
[57] ABSTRACT A radioactive tracer system for indicating drill bit wear or failure utilizing radioactive krypton 85 dissolved or dispersed in an organic or metal organic thickened grease. Preferably the radioactive krypton is placed so that when drill bit wear or failure …
- 239000004519 grease 0 title abstract description 65
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/1015—Locating fluid leaks, intrusions or movements using tracers: using radioactivity
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