Downhole pulse radar
Patent
·
OSTI ID:5729808
This patent describes a downhole radar tool for use with a system for detecting and locating fractures in a geological formation near a borehole. The tool comprises: a generally cylindrical housing; transmitter means; transmitting antenna means; receiving antenna means; isolator means; signal processing means; wherein each of the transmitting and receiving antenna means is a directional antenna comprising: a reflector antenna; a cylindrical pipe; dielectric material filling the electromagnetically active region, the material having a dielectric constant within the range of 20 to 150.
- Assignee:
- Dept. of Energy, Washington, DC (USA)
- Patent Number(s):
- US 4814768; A
- Application Number:
- PPN: US 7-101536A; TRN: 91-021956
- OSTI ID:
- 5729808
- Resource Relation:
- Patent File Date: 28 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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