Product Name：Combined Logging Sonde of Litho-Density and Micro-spherically Focused Logging
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Type：
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LDS/MFS-IC
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producer：
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Huanding Energy Services
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Description：
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In conjunction with NEC and HAS, the Litho-density logs and the Micro-spherically Focused logs can be provided. The LDS uses a sonde-mounted gamma ray source (1.5Ci, Cs137) and two detectors to measure the bulk density and the effective photoelectric effect (Pe) of the formation. A caliper is also recorded. The tool uses two detectors to compensate the measurement result for the effects of mud cake and hole rugosity.
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Main Applications of LDSLDS SpecificationsMain Applications of MFSMFS Specifications
Main Applications of LDS:
1. Porosity analysis
2. Lithology determination
3. Caliper
Main Applications of LDS:
1. Porosity analysis
2. Lithology determination
3. Caliper
LDS Specifications: (with NEC and HAS)
Measurement Range
Bulk Density 1.0 ~ 3.0 g / cm3
Pe 1.0 ~ 14 unit
Measurement Accuracy*
Bulk Density ± 0.025g / cm3
Pe (1.4<Pe<6.0) ± 6% (1.4<Pe<6.0)
Repeatability*
Bulk Density ± 0.015g/ cm3
Pe ± 0.5 Pe unit
Vertical Resolution 360 mm
Depth of Investigation 50 ~ 240 mm
Max. Logging Speed 600 m/h
Length 1125 mm
Mechanical Specifications See HAS
*Regular borehole, thickness of mudcake≤12.5 mm, and no barite in borehole.
1. Resistivity of flushed zone
2. Location of porous and permeable zones
3. Movable hydrocarbon indication
4. Caliper
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(with NEC and HAS)
Measurement Range
Rxo 0.2 ~ 2000 Ω·m
Caliper 150 ~ 540 mm (6 ~ 21 in)
Measurement Accuracy
Rxo: 0.5 ~ 200 Ω·m ± 5%
200 ~ 1000 Ω·m ± 10%
1000 ~ 2000 Ω·m ± 15%
Caliper ± 6.3 mm (±0.25in)
Vertical Resolution 250 mm
Depth of Investigation 100 mm
Max. Logging Speed 600 m/h
Mechanical Specifications See HAS
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Source Load/Unload Tools and Testing Cables of LDS
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*Regular borehole, thickness of mudcake≤12.5 mm, and no barite in borehole.