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How to Select a Borehole Logging Winch: Cable Capacity, Load, Speed, and Control
A borehole logging winch is part lifting machine, part depth-measurement system, and part data-acquisition platform. It must deploy sen...
Borehole Deviation Surveys: When a Fiber Optic Gyro Outperforms Magnetic Tools
A borehole deviation survey measures inclination and azimuth so the path of a borehole can be reconstructed in three dimensions. The co...
Electromagnetic Borehole Flow Logging for Mine-Water Inflow and Fractures
Electromagnetic flow logging measures vertical water movement inside a fluid-filled borehole. By recording flow at selected depths unde...
Borehole Temperature Logging for Mine-Water Inflow and Thermal Anomalies
Borehole temperature logging records the thermal profile of the fluid column and surrounding formation. In an undisturbed hole, tempera...
Gamma Ray Borehole Logging Probes: Total Gamma vs Spectral Gamma
Gamma ray borehole logging probes are widely used in coal, metal-mineral, and geological exploration because natural radioactivity can ...
Wireline Borehole Logging System: How Surface Equipment and Downhole Probes Work Together
A wireline borehole logging system moves a downhole probe through a borehole, powers or communicates with the tool, measures cable move...
What Is Borehole Logging? Probes, Measurements, and Workflow
Borehole logging is the measurement of physical properties and conditions along a drilled hole. One or more downhole probes travel on a...
Borehole Geophysical Probes: What They Measure in Coal and Mineral Exploration
Borehole geophysical probes measure physical properties continuously or at fixed stations inside a drilled hole. In coal exploration, m...
Customized Borehole Logging Equipment: Planning a Configuration
Customized borehole logging equipment starts with a clear measurement objective. A useful enquiry explains what the project needs to le...
Borehole Logging for Coal and Mineral Exploration
Borehole logging for coal and mineral exploration helps a project team examine changes in the physical properties of formations along a...
Digital Geophysical Logging: Acquisition and Data Quality
Digital geophysical logging connects downhole measurements with acquisition software and a documented data workflow. For a geological i...