Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2001003323) POWER LINE COMMUNICATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/003323 International Application No.: PCT/GB2000/002529
Publication Date: 11.01.2001 International Filing Date: 30.06.2000
Chapter 2 Demand Filed: 24.01.2001
IPC:
E21B 47/00 (2012.01) ,E21B 47/12 (2012.01) ,H02J 13/00 (2006.01) ,H04B 3/54 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47
Survey of boreholes or wells
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47
Survey of boreholes or wells
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
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
13
Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
3
Line transmission systems
54
Systems for transmission via power distribution lines
Applicants:
ROBERTSON, Mark, Patrick [GB/GB]; GB (UsOnly)
HOSSACK, Graeme, Peter [GB/GB]; GB (UsOnly)
THE AUTONOMOUS WELL COMPANY LIMITED [GB/GB]; 48 Echline The Steadings South Queensferry West Lothian EH30 9SW, GB (AllExceptUS)
Inventors:
ROBERTSON, Mark, Patrick; GB
HOSSACK, Graeme, Peter; GB
Agent:
MCCALLUM, William, Potter ; Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE, GB
Priority Data:
9915298.501.07.1999GB
Title (EN) POWER LINE COMMUNICATION SYSTEM
(FR) SYSTEME DE COMMUNICATION PAR COURANT PORTEUR EN LIGNE
Abstract:
(EN) This invention relates to a power line communication (PLC) system (8) wherein the power supply line supplies power and also acts as a communications supply line. A receiver (30) is able to detect small changes in the modulated transmitted information and thereby shut down the circuit. The invention is particularly suitable for use where the IEL is remote from the power supply such as, for example, in down hole oil production situations where very long power cables are used.
(FR) Cette invention concerne un système (8) de communication par courant porteur en ligne (CPL) dont la ligne d'alimentation électrique sert à la fois à fournir de l'électricité et à assurer les communications. Un récepteur (30) peut détecter des petits changements dans les informations transmises modulées, et ensuite éteindre le circuit. L'invention est particulièrement utile quand la charge électrique inductive est éloignée de l'alimentation électrique, par exemple dans le cas d'opérations de forage pétrolier où l'on utilise des câbles électriques très longs.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)