Apparatus for reducing noise

Details Apparatus for reducing noise Apparatus for reducing noise

2006-11-07

2006-11-07

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

C340S853300, C340S854400

Reexamination Certificate

active

07132904

ABSTRACT:
An apparatus for electromagnetically connecting surface equipment to a rotating downhole tool string comprises a plurality of electrical conductors, first and second differential interfaces, and at least one electromagnetic shield. The plurality of electrical conductors have first ends terminating at the surface equipment and second ends terminating at the downhole tool string. The first differential interface is electrically connected to the first ends and the second differential interface is electrically connected to the second ends the electrical conductors. The first and second differential interfaces are adapted to transmit and receive a reference-independent differential signal. The electromagnetic shield surrounds and shields the electrical conductors and is connected to ground at one end. The apparatus is stationary relative to rotation of the tool string. Disclosed is an apparatus for electromagnetically connecting a computer to a rotating downhole tool string comprising a plurality of electrical conductors, first and second differential interfaces, and an electromagnetic shield grounded to a drill rig at one end.

REFERENCES:
patent: 2414719 (1947-01-01), Cloud
patent: 2650067 (1953-08-01), Martin
patent: 3518608 (1970-06-01), Papadopoulos
patent: 4675622 (1987-06-01), Taya
patent: 4739325 (1988-04-01), MacLeod
patent: 4785247 (1988-11-01), Meador et al.
patent: 4788544 (1988-11-01), Howard
patent: 4980682 (1990-12-01), Klein et al.
patent: 5492288 (1996-02-01), Bordelon
patent: 6012015 (2000-01-01), Tubel
patent: 6232557 (2001-05-01), Lounsbury et al.
patent: 6252518 (2001-06-01), Laborde
patent: 6369718 (2002-04-01), Mathieu
patent: 6392317 (2002-05-01), Hall et al.
patent: 6449318 (2002-09-01), Rumbaugh
patent: 6639434 (2003-10-01), Rahman
patent: 6670880 (2003-12-01), Hall et al.
patent: 6688396 (2004-02-01), Floerke et al.
patent: 6717501 (2004-04-01), Hall et al.
patent: 6799632 (2004-10-01), Hall et al.
patent: 6821147 (2004-11-01), Hall et al.
patent: 6830467 (2004-12-01), Hall et al.
patent: 6831571 (2004-12-01), Bartel
patent: 6844498 (2005-01-01), Hall et al.
patent: 6866306 (2005-03-01), Boyle et al.
patent: 6888473 (2005-05-01), Hall et al.
patent: 6913093 (2005-07-01), Hall et al.
patent: 6929493 (2005-08-01), Hall et al.
patent: 6945802 (2005-09-01), Hall et al.
patent: 6968611 (2005-11-01), Hall et al.
patent: 6981546 (2006-01-01), Hall et al.
patent: 6982384 (2006-01-01), Hall et al.
patent: 6991035 (2006-01-01), Hall et al.
patent: 2004/0039466 (2004-02-01), Lily et al.
patent: 2004/0104797 (2004-06-01), Hall et al.
patent: 2004/0113808 (2004-06-01), Hall et al.
patent: 2004/0145492 (2004-07-01), Hall et al.
patent: 2004/0150532 (2004-08-01), Hall et al.
patent: 2004/0164833 (2004-08-01), Hall et al.
patent: 2004/0164838 (2004-08-01), Hall et al.
patent: 2004/0216847 (2004-11-01), Hall et al.
patent: 2004/0244916 (2004-12-01), Hall et al.
patent: 2004/0246142 (2004-12-01), Hall et al.
patent: 2005/0001735 (2005-01-01), Hall et al.
patent: 2005/0001736 (2005-01-01), Hall et al.
patent: 2005/0001738 (2005-01-01), Hall et al.
patent: 2005/0035874 (2005-02-01), Hall et al.
patent: 2005/0035878 (2005-02-01), Hall et al.
patent: 2005/0035975 (2005-02-01), Hall et al.
patent: 2005/0036507 (2005-02-01), Hall et al.
patent: 2005/0039912 (2005-02-01), Hall et al.
patent: 2005/0046586 (2005-03-01), Hall et al.
patent: 2005/0048590 (2005-03-01), Hall et al.
patent: 2005/0070144 (2005-03-01), Hall et al.
patent: 2005/0082092 (2005-04-01), Hall et al.
patent: 2005/0092499 (2005-05-01), Hall et al.
patent: 2005/0093296 (2005-05-01), Hall et al.
patent: 2005/0115717 (2005-06-01), Hall et al.
patent: 2005/0145406 (2005-07-01), Hall et al.
patent: 2005/0150653 (2005-07-01), Hall et al.
patent: 2005/0161215 (2005-07-01), Hall et al.
patent: 2005/0173128 (2005-08-01), Hall et al.
patent: 2005/0212530 (2005-09-01), Hall et al.
patent: 2005/0279508 (2005-12-01), Hall et al.
patent: 2005/0284659 (2005-12-01), Hall et al.
patent: 2005/0284662 (2005-12-01), Hall et al.
patent: 2005/0284663 (2005-12-01), Hall et al.
patent: 2005/0285645 (2005-12-01), Hall et al.
patent: 2005/0285705 (2005-12-01), Hall et al.
patent: 2005/0285706 (2005-12-01), Hall et al.
patent: 2005/0285752 (2005-12-01), Hall et al.
patent: 2005/0285754 (2005-12-01), Hall et al.
patent: 2005/0286751 (2005-12-01), Hall et al.
PCT/US03/16475, Published Dec. 4, 2003, Applicant Bakar Hughes; International Search Report “Documents Considered to Be Relevant”.

Affiliated with

Also associated with

Rating

Apparatus for reducing noise does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for reducing noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for reducing noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3652299