DK432177A - Fremgangsmaade og apparat til styring af en digitalmotor til maaling under boring - Google Patents
Fremgangsmaade og apparat til styring af en digitalmotor til maaling under boringInfo
- Publication number
- DK432177A DK432177A DK432177A DK432177A DK432177A DK 432177 A DK432177 A DK 432177A DK 432177 A DK432177 A DK 432177A DK 432177 A DK432177 A DK 432177A DK 432177 A DK432177 A DK 432177A
- Authority
- DK
- Denmark
- Prior art keywords
- controlling
- measurement during
- digital motor
- digital
- motor
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- 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
- E21B47/14—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 using acoustic waves
- E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- 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
- E21B47/14—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 using acoustic waves
- E21B47/18—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/20—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 using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Earth Drilling (AREA)
- Control Of Electric Motors In General (AREA)
- Communication Cables (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72768576A | 1976-09-29 | 1976-09-29 | |
| US05/727,686 US4100528A (en) | 1976-09-29 | 1976-09-29 | Measuring-while-drilling method and system having a digital motor control |
| US05/727,687 US4103281A (en) | 1976-09-29 | 1976-09-29 | Measuring-while-drilling system having motor speed detection during encoding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK432177A true DK432177A (da) | 1978-03-30 |
Family
ID=27419101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK432177A DK432177A (da) | 1976-09-29 | 1977-09-29 | Fremgangsmaade og apparat til styring af en digitalmotor til maaling under boring |
Country Status (12)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3035905C2 (de) * | 1980-09-24 | 1982-12-30 | Christensen, Inc., 84115 Salt Lake City, Utah | Vorrichtung zur Fernübertragung von Informationen aus einem Bohrloch zur Erdoberfläche während des Betriebs eines Bohrgeräts |
| US5283768A (en) * | 1991-06-14 | 1994-02-01 | Baker Hughes Incorporated | Borehole liquid acoustic wave transducer |
| GB2261308B (en) * | 1991-11-06 | 1996-02-28 | Marconi Gec Ltd | Data transmission |
| CN115977592B (zh) * | 2023-03-01 | 2024-05-17 | 电子科技大学 | 一种应用于无线射孔系统中的速度-频率自适应时钟 |
-
1977
- 1977-08-30 NO NO772988A patent/NO150059C/no unknown
- 1977-08-30 IE IE1801/77A patent/IE45473B1/en unknown
- 1977-09-16 ES ES462412A patent/ES462412A1/es not_active Expired
- 1977-09-21 FR FR7728390A patent/FR2366586A1/fr active Granted
- 1977-09-26 OA OA56285A patent/OA05771A/xx unknown
- 1977-09-26 MX MX170694A patent/MX143691A/es unknown
- 1977-09-27 BR BR7706432A patent/BR7706432A/pt unknown
- 1977-09-27 GB GB6491/80A patent/GB1592995A/en not_active Expired
- 1977-09-27 GB GB40117/77A patent/GB1592993A/en not_active Expired
- 1977-09-27 GB GB6469/80A patent/GB1592994A/en not_active Expired
- 1977-09-27 NL NL7710508A patent/NL7710508A/xx active Search and Examination
- 1977-09-28 EG EG560/77A patent/EG13641A/xx active
- 1977-09-29 DE DE19772743871 patent/DE2743871A1/de not_active Withdrawn
- 1977-09-29 DK DK432177A patent/DK432177A/da not_active Application Discontinuation
-
1978
- 1978-07-06 ES ES471490A patent/ES471490A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7710508A (nl) | 1978-03-31 |
| NO150059B (no) | 1984-04-30 |
| FR2366586B1 (enrdf_load_stackoverflow) | 1982-09-10 |
| GB1592995A (en) | 1981-07-15 |
| FR2366586A1 (fr) | 1978-04-28 |
| GB1592994A (en) | 1981-07-15 |
| GB1592993A (en) | 1981-07-15 |
| DE2743871A1 (de) | 1978-03-30 |
| MX143691A (es) | 1981-06-24 |
| IE45473L (en) | 1978-03-29 |
| IE45473B1 (en) | 1982-09-08 |
| ES462412A1 (es) | 1979-06-16 |
| OA05771A (fr) | 1981-05-31 |
| NO772988L (no) | 1978-03-30 |
| ES471490A1 (es) | 1979-02-01 |
| NO150059C (no) | 1984-08-08 |
| EG13641A (en) | 1982-03-31 |
| BR7706432A (pt) | 1978-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AHB | Application shelved due to non-payment |