K-Division Experimental Work. Part I. Geophysics Research for Underground Explosion Technology.

Hearst, J.R.; Carlson, R.C.; Rambo, J.T.

doi:10.2172/4077650

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…Our primary method was to place spacers between the sonde and the calibration blocks, so that the sonde was parallel to the block. We found that if true density were plotted against apparent density for a given value of gap, the result could be fitted reasonably well by a series of straight lines, intersecting in a point (Hearst et al, 1970). Figure 5 shows a typical plot for the far detector of the DBS in air.…”

Section: Effects Of Gap Between Sonde and Borehole Wallmentioning

confidence: 85%

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Calibration of density logs at the Nevada Test Site

Hearst¹

1995

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This b an informal report intended primarily for internal or limited external distribution. The opinions and ronclusions stated are those of the author and may or may not be those of the Laboratory. Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under Contract W-7405-ENC-48. DlSTRlBUTION OF THIS DOCUMENT I S UNLIMITED DISCLAIMER This report w a s prepared as an account of work sponsored by an agency of t h e United States Government. Neither t h e United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for t h e accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial. product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by t h e United States .Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of t h e United States Government or any agency thereof. I DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document.

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Section: Effects Of Gap Between Sonde and Borehole Wallmentioning

confidence: 85%

“…Finally a gap correction, using the mathematical expression for the lines in Figure 5 (Hearst et al, 1970), is applied.…”

Section: Single-detector Sondesmentioning

confidence: 99%

Calibration of density logs at the Nevada Test Site

Hearst¹

1995

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“…Carroll & Muller (1973) concluded that the left-hand side of (4) 'is constant only within limited values of Rw the resistivity of the saturant'. Hearst, Carlson & Rambo (1970) reported that the 'apparent higher resistance of the formation water (at NTS) causes the Archie . .…”

Section: Ro Rwmentioning

confidence: 99%

The electrical conductivity of sandstone, limestone and granite

et al. 1978

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The electrical conductivity of cylindrical cores of Westerly granite, Indiana limestone and Nugget, St Peter and Kayenta sandstones was measured at about 25°C in vacuo, in air, and after saturation in distilled water, tap water, and 0.1 MNaCl solution. The three-electrode technique with a guard ring and the twoelectrode technique without a guard ring were used. Core aspect ratio over the range of 2.00 to 0.25, as well as frequency over the range of 50 Hz to 10 kHz, influences the conductivity of all rocks, especially those measured in vacuo. Measurements from water-saturated samples using a

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Effects of bulk density on calculated neutron log response

Hearst

1974

Nuclear Instruments and Methods

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K-Division Experimental Work. Part I. Geophysics Research for Underground Explosion Technology.

Cited by 3 publications

References 4 publications

Calibration of density logs at the Nevada Test Site

Calibration of density logs at the Nevada Test Site

The electrical conductivity of sandstone, limestone and granite

Effects of bulk density on calculated neutron log response

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