| 摘要 |
100001 THC INVENTION PROVIDCS A INETHOD OF RECEIVING AND/OR TRAIRS;RNITTING INFOL MATION IN A WELL DRILLED IN A GEOLOGICAL FORMATION BETWEEN A FIRST LOCATION AND A SECOND LOCATION, SAID WELL COMPRISING A CASING CONURRUNICATING WITH THE GEOLOGICAL FORMATION, THE METHOD 5 COMPRISING: (J) PLACING A FIRST TRANSDUCER LOCATED IT SAID FIRST LOCATION, SAID FIRST TRANSDUCER COMPRISING TWO ELECTRODES, WHICH ARE FIRST AND SECOND DOWNSTREARN ELECTRODES, SAID FIRST AND - ELECTRIC CONTACT WITH DIE SECOND DOWNSTREAM ELECTRODES BEING SUBSTANTIALLY IN AL CASING; (II) PLACING A SECOND TRANSDUCER LOCATED AT SAID SECOND LOCATION, SAID. SECOND TRANSDUCER CORNPIISING TWO ELECTIODE@, WHICH ARE FIRST AND SECOND UPSTREAM ELECTRODES: 10 (IN.) TRANSMITTING AN ELECTRIC SIGNAL WITH THE FIRST TRANSDUCER BY APPLYING SAID SIGNAL BETWEEN THE FIRST AND SECOND DOWNSIRMN ELECTRODES OR RESPECTIVELY WITH THE SECOND TRANSDUCER BY APPLYING -SAID SIGNAL BETWEEN THE FIRST AND SECOND UPSTREANI ELECTRODES: (M RECEIVING SAID ELECTRIC SIGNAL WITH THE SECOND TRANSDUCER BY DELEE(BIG SAID SINGAL BETWEEN THE FIRST AND SECOND UPSTREAM ELECTRODES OR RESPECTIVELY WITH THE FIRST TRANSDUCER BY 15 DETECTING SAID SIGNAL BETWEEN THE FIRST AND SECOND DOWNSTREAM ELECTRODES. THE HIVENTION FTIRTHEI PROVIDES DIE ASSOCIATED APPARATUS FOR RCCEIVING M4OR.TRANSMILFING ILIFORIRUL(ION USING THE METHOD ABOVE, THE APPARATUS COMPRISING: FI) A FIRST LRANSDUCER LOCATED AT SAID FIRST LOCATION, SAID FIRST TRANSDUCER COMPRISING TWO ELECTRODES, WHICH ARE FIRST AND SECOND DOWNSTREAM ELECTRODES, SAID FIRST AND SECOND DOWNSTREAM ETECIKRODES BEING SUBSTANTIALLY 10 IN ELECTRICAL CONTACT WITH THE CASIUG@ AND (II) A SECOND TRANSCLUCERJOCATED AT SAID SECOND LOCATION, SAID SECOND TRANSDUCER COMPRISING MO ELECTRODES. WHICH ARE FIRST AND SECOND UPSTREAM ELEMODES. [0001 I IN ANOTHER ASPECT OF THE INVENTION, A METHOD TO DETERMINE THE CORIDUCLIVI(Y PROFILE OF A FORMATION FROM A WELL BETWEEN A FIRST LOCATION AT A SURFACE AIID A SECOND LOCATION IN A 25 BORCHOJE IS PROPOSED. THE METHOD COMPRISING: 6) PLACING A FIRST SENSOR LOCATED AT SAID FIRST LOCATION. SAID FIRST SENSOR DETECTING ELECTRIC FIELD OCCURRING AT SAID FIRST 1CCATION FROM THE FORMATION-. (II), PLACING A SECOND SENSOR LOCATED AT SAID SECOND LOCATION. SAID SECOND SCNSOR DETECIINR ELECTRIC. FIELD OCCURRWO AT SAID SECOND LOC ATION FROM THE FORMALIOW (M) OBTAINING A FITST SIGNAL BY DETECTING SCHUMANN RESONANCES FRORN SAID ELECTRIC FIELD '30 OCCURRING AT SAID FIRST LOCATION WITH SAID FIRST SENSOR: (IV) OBTAINKIG A SECOND SIGNAL BY |
