March 1998
Industry At A Glance
98-03_mwd-murphy_3.html (Mar-1998)
A monthly magazine offering industry news, statistics and technical editorial to the oil and gas drilling, exploration and production industry.
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Fig. 3. The first integrated triple combo, 4-3/4-in. MWD / LWD system for holes as small as 5-3/4 in. is available as the VISION475. Resistivity measurements give five compensated phase shift and five compensated attenuation curves. Azimuthal gamma ray, density and photoelectric effect (Pe ƒ) measurements can be used to generate lithology and porosity borehole wall images to assist geosteering. Neutron porosity is also measured. Nuclear sources and stored data are retrievable should the tool become stuck. |
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Copyright © 1999 World Oil
Copyright © 1999 Gulf Publishing Company
