公开(公告)号：US3568140A

公开(公告)日：1971-03-02

申请号：US3568140D

申请日：1969-06-20

Applicant: MOBIL OIL CORP

Inventor： ALLEN WALLACE B ,  BLOUNT FLOYD E

IPC: B06B1/02 ,  B06B1/08 ,  H04B11/00

CPC classification number: E21B41/0085 ,  B06B1/0223 ,  B06B1/08 ,  B06B2201/58 ,  B06B2201/74 ,  C23F13/02 ,  C23F13/06 ,  C23F2213/31

Abstract: The specification discloses an underwater sonic beacon for marking the location of metallic structures such as underwater wellheads. The sonic beacon is powered by a galvanic cell formed by the water as the electrolyte, the metallic structure as one electrode, and a galvanic anode spaced from the metallic structure as the other electrode. An electronic oscillator circuit and electroacoustic transducer are connected as the load on the galvanic cell. The sonic beacon is provided extended lifetime by sequentially activated anodes which produce continuous electrical power.

公开(公告)号：US3566257A

公开(公告)日：1971-02-23

申请号：US3566257D

申请日：1968-09-30

Applicant: MOBIL OIL CORP

Inventor： BLOUNT FLOYD E ,  ALLEN WALLACE B

IPC: G01V15/00 ,  H01F7/02 ,  G01R33/00

CPC classification number: G01V15/00 ,  H01F7/0294

Abstract: THE SPECIFICATION DISCLOSES THE METHOD OF DISPOSITION AN ARRAY OF PERMANENT MAGNETS ON THE SEA FLOOR SURROUNDING A SUBSEA WELL TO BE ABANDONED. THE PERMANENT MAGNETS GENERATE A UNIQUE MAGNETIC FIELD TO AID IN RELOCATING THE SUBSEA WELL USING MAGNETIC DETECTION METHODS.

公开(公告)号：US3689395A

公开(公告)日：1972-09-05

申请号：US3689395D

申请日：1969-06-20

Applicant: MOBIL OIL CORP

Inventor： BLOUNT FLOYD E ,  ALLEN WALLACE B

IPC: C23F13/02 ,  C23F13/00

CPC classification number: C23F13/02

Abstract: THE SPECIFICATION DISCLOSED AN EXTENDED LIFETIME CATHODIC PROTECTION SYSTEM EMPLOYING SEQUENTIALLY ACTIVATED GALVANIC ANODES. ALL OF THE ANODES ARE CONNECTED BY MEANS OF AN ELECTRICAL CONDUCTOR TO THE METALLIC STRUCTURE TO BE PROTECTED SO THAT AS ONE ANODE IS CONSUMED AN ADDITIONAL ANODE OR ANODES ARE ACTIVATED IN SEQUENCE TO PROVIDE CONTINUOUS ELECTRICAL CURRENT FLOW OVER ANY DESIRED PERIOD OF TIME. A DELAY-ACTIVATION ANODE IS DISCLOSED WITH A BODY OF ANODE MATERIAL ENCLOSED BY A HERMETIC CASING WHICH INCLUDES A RELATIVELY CORRODIBLE MATERIAL SUCH AS IRON. THE CORRODIBLE MATERIAL IS CHOSEN TO PROVIDE A PREDETERMINED CORROSION RATE WHEN IMMERSED IN A PARTICULAR ELEC-

TROLYTE, WHEREBY AN OPENING IS CREATED TO EXPOSE THE ANODE MATERIAL AT A DESIRED DELAY TIME.

公开(公告)号：US3533030A

公开(公告)日：1970-10-06

申请号：US3533030D

申请日：1968-09-25

Applicant: MOBIL OIL CORP

Inventor： ALLEN WALLACE B ,  BLOUNT FLOYD E

IPC: E21B33/035 ,  E21B41/00 ,  H01F7/00

CPC classification number: E21B41/0014 ,  E21B33/035

公开(公告)号：US3327214A

公开(公告)日：1967-06-20

申请号：US35483564

申请日：1964-03-26

Applicant: MOBIL OIL CORP

Inventor： ALLEN WALLACE B ,  BLOUNT FLOYD E ,  METLER ALVIN V

IPC: C23F13/04 ,  E21B41/02

CPC classification number: E21B41/02 ,  C23F13/04