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2.25-IN. SLIM SONIC TOOL WITH MULTIPLE CONVEYANCE OPTIONS

Borehole sonic data are used in the oil and gas industry in numerous design decisions focused on well planning, wellbore stability, cement evaluation, completions, and reservoir management. Sonic measurement technology for slim-hole and alternative conveyance logging has progressed rapidly to address the need to save rig time by improving efficiency in a wide variety of downhole environments. A new slim sonic tool is available in a 2.25-in. quad-combo platform that can be deployed as a standard wireline toolstring in open or cased holes or in other configurations such as through-drillpipe and coil tubing with monocable.
The new lightweight, small-diameter, compact tool delivers monopole array-sonic services using a five- receiver array with a 6-in. spacing and two transmitters. Extensive field test data obtained from a wide range of formation and borehole conditions show that the new slim sonic tool produces high-quality compressional and shear measurements, with industry-standard sonic tool performance from a 2.25-in. package. Repeatability is excellent for a variety of borehole sizes from 3-in. to 9.875-in., with logging speeds up to 3,600 ft/hr. Logs run in difficult conditions, such as rugose or horizontal holes, illustrate the advantage of full-array acquisition and slowness-time coherence (STC) processing for reliable measurements. The two transmitters provide robustness and redundancy in the case of a single transmitter failure. Good through- casing formation compressional slowness logs were obtained using STC processing during field testing where the cement bond was good.
Discounted member price: 1.00
10.00
You could save: 90.0%
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