[[file:applying-gravity-in-petroleum-exploration_fig15-17.png|300px|thumb|{{figure number|6}}Example of a borehole gravity tool that succeeded where conventional open-hole and cased-hole logging methods had failed. After Van Popta et al.<ref name=ch15r12>van Popta, J., J. M. T. Heywood, S. J. Adams, and D. R. Bostock, 1990, Use of borehole gravimetry for reservoir characterisation and fluid saturation monitoring: Expanded Abstracts, SPE Europec 90 conference, p. 151–160. Use of time-lapsed borehole gravity logging to monitor fluid movement away from the borehole.</ref> Copyright: SPE.]] | [[file:applying-gravity-in-petroleum-exploration_fig15-17.png|300px|thumb|{{figure number|6}}Example of a borehole gravity tool that succeeded where conventional open-hole and cased-hole logging methods had failed. After Van Popta et al.<ref name=ch15r12>van Popta, J., J. M. T. Heywood, S. J. Adams, and D. R. Bostock, 1990, Use of borehole gravimetry for reservoir characterisation and fluid saturation monitoring: Expanded Abstracts, SPE Europec 90 conference, p. 151–160. Use of time-lapsed borehole gravity logging to monitor fluid movement away from the borehole.</ref> Copyright: SPE.]] |