Patents
- Acoustic, logging sonde US 4,509,149 Ruehle, W.H. 04-02-85
- Acoustic, fullwave US 4,658,383 Zimmer 04-14-87
- Acoustic, imaging UK 2 200 451 Clerke & Larson
12-22-87
- Acoustic, velocity EP 0 232 010 Louis & Roy
12-08-87
- Acoustic velocity EP 0 186 328 Zimmer 11-28-85
- Borehole flowmeter US 4,452,076 Gavignet & Cubberly
06-05-84
- Borehole flowmeter US 4,757,709 Czernichow, J.A.
07-19-88
- Borehole gyroscope US 4,594,790 Englebretson 06-17-86
- Borehole logging tool US 4,780,857 Lyle, Osborn,
Zemanek 10-28-88
- Caliper tool US 4,530,161 T. Blankinship 07-23-85<
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- Data acquisition CA 1 204 849 H. Patterson 09-23-89
- Digital induction system US 4,499,421 P. Sinclair
02-12-85
- Dual valve well pump US 4,548,552 D. Holm 02-17-84
- Electrodynamic generator US 4,529,898 Voloshin et al
03-08-83
- Flow, ultrasonic US 4,195,517 R. Kalinoski 12-18-78
- Flowmeter, magnetic susp. US 3,630,078 Jean-Loup Bonnet
12-28-71
- Fluid control valve US 4,586,569 W. Hyde 05-06-86
- Gamma ray measurement US 4,638,158 Sonne & Beard
01-20-87
- Gamma ray spectroscopy CA 973640 H.D. Scott 08-26-75
- Gravimetry EP 0 177 196 J. Fitch 09-04-86
- Heatflow, convection US 4,547,080 Dunn, Hardee, &
Striker 10-15-85
- High density electronics US 4,547,833 S. Sharp 10-15-85
- High resolution scintillation crystal US 4,638,164
Sonne & Nunley 01-20-87
- Logging, sonic US 4,829,486 R.A. Broding 05-09-89
- Logging, gamma radiation US 4,829,176 W. Paske & F.
Roesler 05-09-89
- Measuring diameter US 4,546,314 G. Minerbo 10-08-85
- Spectral gray logging EP 0 143 529 D. Arnold 05-06-85
- System for multichannel processing UK GB 2156516A Coope
& Roesler 03-12-85
- Televiewer, acoustic US 3,718,204 Groenendyke 02-27-73
- Televiewer, acoustic UK 2 133 882 Kreisler 01-20-83
- Televiewer, acoustic US 3,369,626 J. Zemanek, Jr.
02-20-68
- Televiewer, acoustic US 4,711,122 Augehrn & Fischer
12-08-87
- Televiewer, acoustic US 4,646,565 R. Siegfried 03-03-87
- Televiewer, acoustic UK 2 168 569 A F. Rambow 06-08-86
- Televiewer, borehole US 4,600,024 Broding 07-15-86
- Televiewer, borehole US 4,463,378 F. Rambow 07-31-84
- Televiewer, borehole US 4,829,488 R.W. Siegfried
05-09-89
- Three-dimensional display US 3,434,568 R. Caldwell
09-30-66
- Three-dimensional US 3,668,619 C. Dennis 06-06-72
- Transducer US 3,378,097 A.J.D. Straus 04-16-68
- Orientation sensing system US 3,478,839 J. Zemanek, Jr.
11-18-69
- Packer US 4,706,746 White & Beck 11-17-87
- Universal interface method CA 1 202 712 J. Flagg
09-28-83
- Well instrument UK 2 133 437A P. Engelder 05-13-83
- Well logging, time-share UK 1 381 235 R.W. Pitts, Jr.
01-22-73
- Well survey probe system WO 85/05652 D. Molnar 05-31-85
- Wireline-powered/deep wells US 5,404,946 A.E. Hess
04-11-95