Access medium- and high-dogleg severity wellbores
The 2 1/2-in-diameter SlimAccess wireline logging tool for slim and complex geometry boreholes can access hole sizes as small as 3 1/2 in. Its flexibility also ensures logging performances in wells with medium to high dogleg severity, delivering the same accurate, reliable data you expect from standard tools.
The SlimAccess toolstring integrates - array induction resistivity
- array sonic, array density
- compensated neutron
- gamma ray.
Slimholes and deviation are not obstacles. The SlimAccess quad-combo successfully logged a 3 3/4-in second sidetrack hole with a dogleg severity of 40°/100 ft and a maximum hole deviation of 75°, and using the TLC drillpipe-conveyance system, the SlimAccess triple-combo was successfully deployed through a dogleg severity of 73°/100 ft in a 6-in hole.
In a Canadian well, the 7 7/8-in borehole collapsed, preventing standard logging tools from reaching total depth. To complete the logging job, 4 1/2-in drillpipe was run in the well past the point of collapse. The SlimAccess string was conveyed through the drillpipe (3 1/4-in-drift ID) and logged over the openhole section.
Benefits
- Accessibility of medium- and high-dogleg severity wellbores and horizontal and extended-reach wells
- Greater operational control with reduced operational costs
- Improved tool reliability
- Improved wellsite interpretation
- Added flexibility for your logging program
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