Borehole Gravimeter

• Byerley, K.A., and Schmoker, J.W., 1977, Density and porosity estimates from borehole gravity data in Castle Pines 3, 2, and 1 water wells, Douglas County, Colorado: U.S. Geological Survey Open-File Report 77-875, 17 p.



• Gournay, L.S., and Lyle, W.D., 1984, Determination of hydrocarbon saturation and porosity using a combination borehole gravimeter (BHGM) and deep investigating electric log: Society of Professional Well Log Analysts Annual Logging Symposium, 25th, New Orleans, La., 1984, Transactions, p. WW1-WW14.



• Hearst, J.R., and Carlson, R.C., 1982, Measurement and analysis of gravity in boreholes, in Fitch, A. A., ed., Developments in geophysical exploration methods--3: London, England, Elsevier Applied Science Publishers, p. 269- 303.



• Hearst, J.R., Kasameyer, P.W., and Owen, L.B., 1978, Potential uses for a high-temperature borehole gravimeter: Lawrence Livermore Laboratory, 8 p. [Available from National Technical Information Service, Springfield, VA 22161 as NTIS Report UCRL-52421.]



• Howell, L.G., Heintz, K.O., and Barry, A., 1966, The development and use of a high-precision downhole gravity meter: Geophysics, v. 31, no. 4, p. 764- 772.



• Jageler, A.H., 1975, Improved hydrocarbon reservoir evaluation through use of borehole gravimeter data: Society of Petroleum Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers Paper SPE 5511, 19 p.



• Jones, B.R., 1972, Downhole gravity tool spots distant porosity: World Oil, v. 175, no. 2, p. 56-59.



• Lukavchenko, P.I., 1962, Observations with gravimeters in wells and shafts: Razvedochnaya i Promyslovaya Geofizika, no. 43, p. 52-64.



• McCulloh, T.H., 1965, A confirmation by gravity measurements of an underground density profile based on core densities: Geophysics, v. 30, no. 6, p. 1108-1132.



• _____1966, Gravimetric effects of petroleum accumulations--A preliminary summary: U.S. Geological Survey Circular 530, 4 p.



• _____1966, The promise of precise borehole gravimetry in petroleum exploration and exploitation: U.S. Geological Survey Circular 531, 12 p.



• Rasmussen, N.F., 1975, Borehole gravimeter finds bypassed oil, gas: Oil and Gas Journal, v. 73, no. 39, p. 100-104.



• _____1977, Gravity logs promise new applications: Petroleum Engineer, v. 49, no. 7, p. 21-24.



• Robbins, S.L., 1979, Description of a special logging truck built for the U.S. Geological Survey for borehole gravity surveys: U.S. Geological Survey Open-File Report 79-1511, 72 p.



• Schmoker, J.W., 1977, Density variations in a quartz diorite determined from borehole gravity measurements, San Benito County, California: Log Analyst, v. 18, no. 2, p. 32-38.



• Schmoker, J.W., Halley, R.B., Meyer, F.W., and Robbins, S.L., 1979, Preliminary porosity estimates on south-Florida Cenozoic carbonate rocks based on borehole gravity measurements: U.S. Geological Survey Open-File Report 79-1652, 18 p.



• Tucci, Patrick, Schmoker, J.W., and Robbins, S.L., 1982, Borehole-gravity surveys in basin-fill deposits of central and southern Arizona: U.S. Geological Survey Open-File Report 82-473, 23 p.