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On this page, you can select 「MainGroup」 or 「Facet」 in E21B. |
HB:Handbook | ||||
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Select the desired 「MainGroup」 or 「facet」 etc. |
CC:Concordance | ||||
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Applicable area: "1/00-49/10" Support systems of construction works, e.g. designing, execution, management [other than control] | ||||
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Applicable area: "1/00-49/10" Characterized by installing solar cells to civil engineering structures, buildings or ground | ||||
| Methods or apparatus for drilling | |||||
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Percussion drilling[2006.01] | HB | CC | 2D129 | |
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Rotary drilling[2006.01] | HB | CC | 2D129 | |
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Drives for drilling, used in the borehole [3] | HB | CC | 2D129 | |
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Drives for drilling with combined rotary and percussive action [2006.01] | HB | CC | 2D129 | |
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Special methods or apparatus for drilling [2006.01] | HB | CC | 2D129 | |
| Drilling tools | |||||
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Drill bits (specially adapted for deflecting the direction of boring E21B 7/08; with means for collecting substances E21B 27/00) [3,8] | HB | CC | 2D129 | |
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Other drilling tools | HB | CC | 2D129 | |
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Accessories for drilling tools [3] | HB | CC | 2D129 | |
| Other equipment or details for drilling; Well equipment or well maintenance | |||||
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Supports for the drilling machine, e.g. derricks or masts [1,7] | HB | CC | 2D129 | |
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Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings [2006.01] | HB | CC | 2D129 | |
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Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables [2006.01] | HB | CC | 2D129 | |
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Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (freeing objects stuck in boreholes by flushing E21B 31/03) [2006.01] | HB | CC | 2D129 | |
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Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B 43/10) [2006.01] | HB | CC | 2D129 | |
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Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors (core bits E21B 10/02) [2006.01] | HB | CC | 2D129 | |
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Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits [6,8] | HB | CC | 2D129 | |
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Vibration generating arrangements for boreholes or wells, e.g. for stimulating production (for transmitting measuring-signals E21B 47/14; for geophysical measurements G01V 1/02) [2006.01] | HB | CC | 2D129 | |
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Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground [2006.01] | HB | CC | 2D129 | |
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Fishing for or freeing objects in boreholes or wells [2006.01] | HB | CC | 2D129 | |
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Sealing or packing boreholes or wells | HB | CC | 2D129 | |
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Valve arrangements for boreholes or wells [2006.01] | HB | CC | 2D129 | |
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Methods or apparatus for preventing or extinguishing fires [2006.01] | HB | CC | 2D129 | |
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Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones [2006.01] | HB | CC | 2D129 | |
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Methods or apparatus for cleaning boreholes or wells (E21B 21/00 takes precedence) [2006.01] | HB | CC | 2D129 | |
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Tubing catchers, automatically arresting the fall of oil-well tubing | HB | CC | 2D129 | |
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Equipment or details not covered by groups E21B 15/00-E21B 40/00 | HB | CC | 2D129 | |
| Obtaining fluids from wells[3] | |||||
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Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (applicable only to water E03B) [2006.01] | HB | CC | 2D129 | |
| Automatic control[3] | |||||
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Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems ; Systems specially adapted for monitoring a plurality of drilling variables or conditions [2006.01] | HB | CC | 2D129 | |
| Surveying or testing | |||||
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Measuring the drilling time or rate of penetration | HB | CC | 2D129 | |
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Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B 21/08) [1,2012.01] | HB | CC | 2D129 | |
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Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells [2006.01] | HB | CC | 2D129 | |