# Caliper Log

From Open Energy Information

## Exploration Technique: Caliper Log

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Exploration Technique Information | |
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Exploration Group: | Downhole Techniques |

Exploration Sub Group: | Well Log Techniques |

Parent Exploration Technique: | Well Log Techniques |

Information Provided by Technique | |

Lithology: | |

Stratigraphic/Structural: | |

Hydrological: | |

Thermal: | |

Cost Information | |

Low-End Estimate (USD): | 0.40 40 centUSD / foot
4.0e-4 kUSD 4.0e-7 MUSD 4.0e-10 TUSD |

Median Estimate (USD): | 0.78 78 centUSD / foot
7.8e-4 kUSD 7.8e-7 MUSD 7.8e-10 TUSD |

High-End Estimate (USD): | 3.00 300 centUSD / foot
0.003 kUSD 3.0e-6 MUSD 3.0e-9 TUSD |

Time Required | |

Low-End Estimate: | 0.35 days 9.582478e-4 years / job
8.4 hours 0.05 weeks 0.0115 months |

Median Estimate: | 0.46 days 0.00126 years / job
11.04 hours 0.0657 weeks 0.0151 months |

High-End Estimate: | 0.69 days 0.00189 years / job
16.56 hours 0.0986 weeks 0.0227 months |

Additional Info | |

Cost/Time Dependency: | Depth, Temp, Resolution |

Caliper Log:

A caliper log is a well logging tool that provides a continuous measurement of the size and shape of a borehole along its depth and is commonly used in hydrocarbon exploration when drilling wells. The measurements that are recorded can be an important indicator of cave ins or shale swelling in the borehole, which can effect the results of other well logs.

Page | Area | Activity Start Date | Activity End Date | Reference Material |
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Caliper Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et Al., 1987) | Valles Caldera - Redondo Geothermal Area | 1984 | 1984 |