Six Arm Dipmeter (SEDSM) Service
A Superior Approach Identifying Bedding Surfaces
Halliburton's Six Arm Dipmeter (SEDSM) service provides a more thorough and accurate description of bedding surfaces than conventional four-arm devices. The system uses optimum filtering and averaging techniques to define data acquired from the borehole periphery. More arm-pair combinations provide greater system redundancy and increase the number of calculable correlations. With the double articulation of six independently sprung caliper arms and swiveled pads, the SED™ tool helps ensure uniform contact for reliable results.
When combined with the Shiva™ SED computation program, the wellsite package accurately processes raw data output and produces arrow plots, ancillary plots, and listings (as illustrated here). Omnidip, a module of the Shiva program, uses the tool's sampling density to identify nonplanar surfaces and describe current bedding characteristics and sedimentary structures.