IT1248782B - Miglioramenti relativi al sistema di guida di un utensile lungo un percorso sotterraneo - Google Patents
Miglioramenti relativi al sistema di guida di un utensile lungo un percorso sotterraneoInfo
- Publication number
- IT1248782B IT1248782B ITMI911219A ITMI911219A IT1248782B IT 1248782 B IT1248782 B IT 1248782B IT MI911219 A ITMI911219 A IT MI911219A IT MI911219 A ITMI911219 A IT MI911219A IT 1248782 B IT1248782 B IT 1248782B
- Authority
- IT
- Italy
- Prior art keywords
- tool
- circuit
- guide
- tool along
- magnetic field
- Prior art date
Links
- 238000005259 measurement Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
- E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
- E21B47/0232—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor at least one of the energy sources or one of the detectors being located on or above the ground surface
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
Abstract
Per guidare un utensile lungo un percorso sotterraneo 6 in prossimità della superficie, come richiesto ad esempio nel caso di attraversamento di un fiume 7, l'utensile è provvisto di un rilevatore magnetico mentre circuito trasmettitore è posizionato quale punto di riferimento per l'utensile in superficie. In una prima fase di misurazione, viene fatta fluire una corrente continua in una direzione sino al circuito 10, 12 ed il campo magnetico risultante in prossimità dell'utensile viene rilevato tramite un rilevatore magnetico.In una seconda fase di misurazione, viene fatta passare, nel circuito 10, 12 una corrente continua in direzione opposta e viene rilevato per mezzo del rilevatore magnetico il campo magnetico risultante in prossimità dell'utensile.Tecniche di elaborazione vengono utilizzate per determinare informazioni di posizione che si avvalgono dei valori rilevati del campo magnetico ed è possibile guidare, come richiesto, l'utensile in base a tali informazioni di posizione. La tecnica permette di guidare un utensile lungo un percorso sotterraneo con notevole precisione e senza l'ausilio di un circuito di rilevamento ed elaborazione non standardizzato.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909010096A GB9010096D0 (en) | 1990-05-04 | 1990-05-04 | Improvements in or relating to guiding of a tool along a subterranean path |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI911219A0 ITMI911219A0 (it) | 1991-05-03 |
| ITMI911219A1 ITMI911219A1 (it) | 1992-11-03 |
| IT1248782B true IT1248782B (it) | 1995-01-28 |
Family
ID=10675506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITMI911219A IT1248782B (it) | 1990-05-04 | 1991-05-03 | Miglioramenti relativi al sistema di guida di un utensile lungo un percorso sotterraneo |
Country Status (7)
| Country | Link |
|---|---|
| CA (1) | CA2041622A1 (it) |
| DE (1) | DE4114784A1 (it) |
| FR (1) | FR2661712A1 (it) |
| GB (2) | GB9010096D0 (it) |
| IT (1) | IT1248782B (it) |
| NL (1) | NL9100772A (it) |
| NO (1) | NO911740L (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515931A (en) * | 1994-11-15 | 1996-05-14 | Vector Magnetics, Inc. | Single-wire guidance system for drilling boreholes |
| CN113464120B (zh) * | 2021-09-06 | 2021-12-03 | 中国石油集团川庆钻探工程有限公司 | 工具面状态的预测方法和系统、滑动定向钻井方法和系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529682A (en) * | 1968-10-03 | 1970-09-22 | Bell Telephone Labor Inc | Location detection and guidance systems for burrowing device |
| US4710708A (en) * | 1981-04-27 | 1987-12-01 | Develco | Method and apparatus employing received independent magnetic field components of a transmitted alternating magnetic field for determining location |
| GB2175096A (en) * | 1985-05-07 | 1986-11-19 | Radiodetection Ltd | Electromagnetic transducer assemblies and means for determining relative speed and/or configuration using such assemblies |
| US4875014A (en) * | 1988-07-20 | 1989-10-17 | Tensor, Inc. | System and method for locating an underground probe having orthogonally oriented magnetometers |
-
1990
- 1990-05-04 GB GB909010096A patent/GB9010096D0/en active Pending
-
1991
- 1991-04-26 GB GB9109116A patent/GB2243693A/en not_active Withdrawn
- 1991-05-01 CA CA002041622A patent/CA2041622A1/en not_active Abandoned
- 1991-05-02 FR FR9105393A patent/FR2661712A1/fr not_active Withdrawn
- 1991-05-03 IT ITMI911219A patent/IT1248782B/it active IP Right Grant
- 1991-05-03 NO NO91911740A patent/NO911740L/no unknown
- 1991-05-03 NL NL9100772A patent/NL9100772A/nl not_active Application Discontinuation
- 1991-05-06 DE DE4114784A patent/DE4114784A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CA2041622A1 (en) | 1991-11-05 |
| NL9100772A (nl) | 1991-12-02 |
| GB9010096D0 (en) | 1990-06-27 |
| GB9109116D0 (en) | 1991-06-12 |
| FR2661712A1 (fr) | 1991-11-08 |
| NO911740L (no) | 1991-11-05 |
| DE4114784A1 (de) | 1991-11-07 |
| ITMI911219A0 (it) | 1991-05-03 |
| GB2243693A (en) | 1991-11-06 |
| NO911740D0 (no) | 1991-05-03 |
| ITMI911219A1 (it) | 1992-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |